Unit3Computer。

一名优秀的教师在教学方面无论做什么事都有计划和准备，作为高中教师就要在上课前做好适合自己的教案。教案可以让学生能够在教学期间跟着互动起来，减轻高中教师们在教学时的教学压力。写好一份优质的高中教案要怎么做呢？以下是小编为大家收集的“Unit3Computer”但愿对您的学习工作带来帮助。

Unit3Computer
教学目标
Teachingaimsanddemands
本单元有关电脑的知识使用学生对其有一个初步的了解。让学生了解有关中国民航运用计算机的情况。并学习如何使用向对方提建议的口语练习，通过单词的学习掌握goup,bringdown,prefertoand,butalthough等词的用法。本单元的语法重点是现在完成时被动语态的使用，要求学生能够了解和掌握。
Teachingimportantanddifficultpoints
1.ImportantVocabulary:
although,waste,believe,necessary,passenger,record,atonetime,greatly,correct,complete,decision,abroad,changefor
2.DailyExpressions:
Firstofall,…
Ibelieve…
Anyreason?
3.Usefulphrases:
Itwouldbeawasteof…
Inmyopinion,weshould…
4.Grammar
Thepresentperfectpassivevoice.
教学建议
1.通过对话练习，进行两个人之间对建议和推荐的用法。
2.通过课文的学习，掌握本单元的词和词组的用法。
3.通过对课外补充文章的学习，对计算机的历史和应用有所了解。
Lesson33:口头练习：对话交际功能——日常生活用语。
Lesson34:学生进行对文章编成对话练习。练习直接引语变间接引语。
Lesson35:学生继续练习对话。可以扮演CAAC的领导和记者，或计算机经销商和单位领导，或电视节目主持人和中学生等等。
Lesson36:笔头练习：让学生写一篇关于自己生活中计算机的使用的文章，或对计算机在人们生活中应用的畅想。
教材分析
本单元的对话的特点是通过两个人对买何种计算机的讨论，从而掌握如何进行对一个物品进行评价、表达自己的观点，并提出建议。比如常见的口语用法：Inmyopinion,weshould…/What’syouropinion?/Idon’tthinkit’snecessaryto…/Ibelieve…/Istillthink…就在这个对话中经常出现。同时还有很多其它有用的口语，比如：Firstofall…/inafewyears’time/awasteof…/makeadecision/not…anymore
本单元的课文不仅讲述了计算机的应用对CAAC的帮助，而且中间穿插了很多现在完成进行时的被动语态的用法，使得学生能够正确地掌握这个语法的用法。同时对一些常见词和短语进行理解。比如：join,beusedtodo,thanksto,abroad,spend…onsth.,prefertodo,welcome.
重点知识讲解
1.Todaytheyaretalkingaboutbuyinganewcomputer.今天他们谈论买一个计算机。
这里的talkabout的意思是“谈论；谈及到；讨论”，后面通常加上名词或动名词。
Wetalkedaboutityesterday.
Iwanttotalkaboutthepriceofthecarwithyou.
2.DidyoufindoutthepricefortheIBMPC486?你找出IBMPC486的价格了么？
这里的词组findout和find都是表示“找出”，都是一个结果。但是两种也有区别：如果表示意外发现，通常用find。比如：
Ifoundthiswalletoutsidetheclassroom.
Whatdidyoufindjustnow?
如果要表示经过一番努力或研究得出的结果的时候，find和findout都可以，但通常用后者。比如：
Ifinallyfoundoutthesecretofhisdeath.
Shewantedtofindouttherealanswertothequestion.
3.I’vegottheinformationforallthecomputersnow.我已经得到了所有计算机的信息了。
这里的information同news一样是一个不可数名词。后面通常加上for或about，前面通常加上一些修饰不可数名词的形容词。比如：
Doyouhaveanyinformationaboutthenewmachine.
4.Inmyopinion,weshouldbuytheIBMPC586.依我看来，我们应该买IBMPC586。
这里的inone’sopinion表示的意思是“依…来看；…的意见是”。需要注意两点：1）后面不加I/he…think(s)。不像中文里可以说“依我看来，我觉得…”。在英语中这两种用法不同时出现。比如：
Inmyopinion,youarethebeststudent.不能说成Inmyopinion,Ithinkyouarethebeststudent.
2)后面不加客观事实。因为这里应是一个推断或主观的意见，比如：
Inmyopinion,theearthisround.(错误句子)。
Inmyopinion,youareright.(正确句子)
5.Ifwebuythesmallerone,theIBMPC486,wemighthavetochangeitinafewyears’timeforabiggerone.如果我们现在要是买了theIBMPC486，几年以后我们肯定要换一个更大的计算机。
这里的词组change…for…表示的意思是“将…换成…”。比如：
Iwanttochangethissmallhatforabiggerone.
6.Ihopewecanmakeadecisiontoday.我希望我们今天能做出决定。
这里的词组是makeadecision(做出决定)。等于decidetodo。比如：
Didtheymakeadecisionyesterday?
另外也可以用cometoadecision,arriveatadecision来表示同样的意思。比如：
Theyfinallycametoadecisionatthemeeting.
7.Itisusedtorecordtheticketswhichpassengersbuy.它还记录下游客购票的情况。
句子中的beusedto的意思是“被用来…”，是一个被动语态，后面加上动词原型。
Thewaterherisusedtomakethetreesalive.
Computersareusedheretoplaygameson.
8.Nowitispossibletofindoutmuchfasterwhichplanesarefull.现在要找到哪架飞机满了比以前要快多了。
这里用了一个much表示一个程度。通常在much,even和still后面加上一个形容词或副词的比较级形式。比如：
Iammuchheavierthanbefore.
Sheismuchhappierthanshewastwoyearsago.
9.Thankstothenewcomputer,thepassengersattheofficesoftheCAACcannowbuytheiraeroplaneticketsmuchfaster.由于使用了新的计算机，乘客在中国民航购票快多了。
句子中的thanksto是一个常见的短语，表示“由于；幸亏”，相当于becauseof,或者asaresultof表示原因。比如：
Thankstoyourhelp,Iwasabletowinthegame.
Theylostthegamethankstothefoolishadviceyougavethem.
10.Atonetime,therewerelongqueuesofpeoplewaitingoutsidetheCAACoffices.以前，中国民航办公室前等着购票的人们排成长长的队列。
词组atonetime表示的意思是“以前；曾经”。比如：
Atonetimewemeteachothereveryday.
Hewenttothatrestauranttohavedinneratonetime.
11.Thesepeoplewillbewelcomeonourplanes.我们欢迎这些人来乘坐我们的飞机。
这里的welcome在这句话中是一个形容词，表示的意思是“受欢迎的”，后面常加的是不定式。比如：
Youarewelcometodoanythingyoulike.
WelcometoBeijing.
welcome这个词也可以是名词。比如：
Theyreceivedacoldwelcomewhentheyarrived.
同样welcome也可以作为一个及物动词，但后面不加不定式，而且过去式和过去分词都是welcomed。比如：
Allthestudentswelcomedthevisitingfriendsattheschoolgate.
12.Inmyopinion,weshouldbuytheIBMPC586.依我看来，我们应该买IBMPC586。
这里的情态动词should表示的意思是“应该”，通常用在表示建议的句子中。比如：
Ishouldgohomebefore6o’clock.
Youshouldnotaskotherstodoyourhomework.
13.Ifwebuythesmallerone,theIBMPC486,wemighthavetochangeitinafewyears’timeforabiggerone.如果我们现在要是买了IBMPC486，几年以后我们肯定要换一个更大的计算机。
这里的if是一个条件句。后面出现的两个逗号之间的东西从位置上说是一个插入语，从成份上来说是一个同位语，是对前面的名词thesmallerone进行解释。我们通常用一个名词性短语或从句来作为同位语
14.Idon’tthinkIit’snecessarytobuythebiggerone.我想没必要买较大的那个。
我们通常在think,suppose,expect,imagine等表示心理活动的动词后面不加否定含义的宾语从句。如果后面的从句使一个否定句，我们常常将从句谓语动词的否定是转移到主句的谓语动词之前。比如：
Idon’tthinkIcangetawayatthemoment.
Idon’tsupposeyouneedtoworry.
Idon’tthinkIknowyou.
15.TheIBMPC486willbebigenoughforus.IBMPC486对我们来说就够大的了。
句子中的enough可以是形容词，也可以是副词。通常我们将enough放在名词前面或形容词或副词的后面。而且通常在后面再加上不定式。比如：
Idon’thaveenoughmoneytobuyahouse.
Iamnotrichenoughtobuyahouse.
16.Wemustn’twasteanymoretime.我们不可以在浪费更多的时间了。
这里的情态动词mustn’t表示的不是“必须不”而是“不可以；不允许”。通常用在命令的句子中。比如：
Youmustn’ttalkinclass.Itisnotagoodhabit.
Wemustn’tgotherebecauseitisdangerous.
17.Wemustdecidewhichonetobuy.我们必须决定买哪一个。
这里的whichonetobuy为特殊不定式短语，在句子中做decide的宾语。特殊不定式的构成形式为“关系代词或关系副词+动词不定式”。常用的关系代词有：what,which,who,whether等；常用的关系副词有how,when,where,why等。比如：
Wehaven’tdecidedwhattodonext.
Idon’tknowhowtowriteinEnglish.
Iwillaskwhentostarttomorrowmorning.
Shewillaskwheretolive.
18.Atonetime,therewerelongqueuesofpeoplewaitingoutsidetheCAACoffices.以前，中国民航办公室前等着购票的人们排成长长的队列。
这里的waiting是一个现在分词，在句子中做people的定语，放在名词后，相当于一个定语从句。比如：
Theforeignertalkingwithourteacherisheadofthevisitinggroup.
Themanrunningafterthebusisafriendofmine.
19.Asaresult,thenumberofpeoplewhotravelbyplaneinChinaislargerthaneverbefore.因此，在中国乘飞机旅行的人数比以往多了。
这句话中的asaresult的作用相当于一个副词，意思相当于so。比如：
Hehurthimself.Asaresult,hecouldn’tgotoschool.
这句话中的thenumberof的中心词是number，说明谓语动词肯定是单数的。比如：
Thenumberofthebooksinthisbookshopismorethan200,000.
20.我们在很多句子中都用一个代词来代替前面提到的名词，常见的有one,it和that。这三个词都是代词的时候的区别：
1,one=a/an+noun所代表的是前面提到的同类中的任何一个
Hehasnobookandnomoneytobuyone.
Thehatistoosmall.Pleaseshowmealargerone.
2,it=the/this/that/adj.+noun指同一件事物
Hehasabook,buthewillnotlendittome.
Idranksomeicedwater,butitmadememorethirsty.
3,that=the+noun指前面所提到的同一类中的另外制定的一个.
Theairofthecountryispurerthanthatofthecity.
比较下面三句话：
Icannotfindmyumbrella;IthinkImustbuyone.
Icannotfindumbrella;Idon’tknowwhereIputit.
TheumbrellayouboughtischeaperthanthatIbought.
教学设计方案Lesson33
一、TeachingAims
1.HelpSsunderstandthegeneralideasandsomedetailsinthedialogue
2.Practiceinpairsonmakinganewdialogueaboutsomethingtheyareabouttobuy
3.Teachthemhowtousesomeofthewordsandexpressionsinthedialogue
二、Teachingprocedures
StepIWarmingUp
1.Giveastudent5minutestohavehis/herownfreetalkaboutanythinghe/sheenjoys
2.EncourageSstoaskthestudentquestionsabouthis/herfreetalk
3.AskSshowmanyofthemhavegotacomputerathome
4.Askthosewhohavecomputerswhatkindofcomputerstheyareusing
5.Writedown“486,586,desktop,laptop,PC,Mac,Gameboy”ontheblackboard
StepIIListening
1.PlaytapeofLesson33twiceandaskthemtolistentothetapewithoutlookingattheirbooks
2.GiveSsquestionbeforetheylistenandaskthemtotrytounderstandthedialoguewiththosequestions
1)Howmanypeoplearethereinthedialogue?
2)Whataretheytalkingabout?
3)Dotheyfinallyagreewitheachother?
3.Askthreestudentstoanswerthequestionsabove
StepIIIReading
1.AskSsonebyonequestionsaboutthedialogue:
1)WhatdidJennyprobablyaskMeiGetodobeforetheyhavethedialogue?(tofindoutthepricefortheIBMPC486)
2)WhatdoesJennyprefertobuy,PC486orPC586?Why?(seebookfortheanswer)
3)WhydoesMeiGewanttobuythesmallerone?
4)Whycan’ttheywasteanymoretime?(pricemaygoupandthefactoryneedsthecomputersbadly)
5)Whatistheirfinaldecision?(notmentioned)
2.Askthenextstudenttocorrectthemistakesifany
3.GiveSsoneminuteortwotogooverthedialogueagainandthenaskoneofthestudentstobeJennyandtelltheotherswhathashappenedinthedialogue
Onepossibleanswer:
IamJennyandIamworkingwithMeiGeinafactory.OurfactoryplannedtobuyanewcomputersoMeiGeandItalkedaboutbuyinganewcomputer.IaskedMeiGetofindoutthepriceoftheIBMPC486butIwanttobuytheIBMPC586becauseitisbetterandbigger.What’smore,wewillchangethe486for586inafewyears’time.ButMeiGestillprefersthesmalleronebecausehethinksitisawasteofmoneytobuyaverygoodone.HebelievesPC486isgoodenough.Wewillmeetagaintomakeadecisionthenextday.
4.AskanotherstudenttobeMeiGeandtelltheotherswhathashappened
StepIVTeaching
1.TeachingSstheuseofdifferentwordsandexpressions
2.AskSstorepeatthesentenceswhichtheteachergivesandafterthataskthemtomakesomenewsentenceswiththewordsandexpressions
StepVPractice
1.Askstudentstousethewordsandexpressionstomakeanewdialogue
2.Askotherstudentstofindoutthemistakes
StepVISummary
AskoneoftheSstotellotherSswhattheyhavelearnedandwritethemdownontheblackboard
StepVIIHomework
1.AskSstobethemanagerofthefactoryandmakeupanewdialogue
Onepossibleanswer:
M(Manager):Jenny,wouldyoupleasecometomyoffice?Ineedtotalktoyou.
J(Jenny):OK.WhatcanIdoforyou?
M:Ourfactoryisbecomingbetterandbetterandnowweneedanewcomputerbecauseourcomputeristooold.IwantyouandMeiGetobuyanewcomputerforourfactory.
J:Yes.Whatkindofcomputersyouwantustobuy?
M:Idon’tknowmuchaboutit.YouandMeiGecanaskforthepricefirst.
J:OK.Wewillcheckthepricefirst.ButIthinkweshouldbuyaPC586,whichisverynewnow.
M:AskMeiGetocheckthepricefirst.Tellmethedecisionnextweek.
J:Allright.Wewilldothat.
2.Makegoodpreparationforthenextlesson
教学设计方案Lesson34
一、TeachingAims
1.GetsomegeneralideasonhowcomputershelpCAAC
2.Learnsomeusefulwordsandexpressions
3.Beabletousethenewwordsandexpressionstomakenewpassage
二、TeachingProcedure
StepIWarmingup
1.AskthoseSswhohavecomputersathomewhattheyusecomputersfor
2.Writethosepurposesdownontheblackboard“Games,WordProcessing,Programming,Internet,Chat,Drawing,WatchingMovies,MakingFlashMovies…”
3.AskSsquestionsbeforetheygettothetext
1)WhatcancomputersdoforCAAC?
2)Howdothecomputerssellthetickets?
StepIIListening
ListentothetapeforLesson34once
StepIIIReading
1.AskSstoreadthetext
2.Answerthefollowingquestionswithoutlookingatthebook
1)WhatisthecomputerusedforintheCAAC?
2)Whatdidpeopleusuallydowhentheywantedtobuyaticketbeforetheuseofcomputers?
3)HowmanytheCAACofficesarethereintheworld?
4)WhydomorepeopleinChinaliketotravelbyplane?
5)WhydothepeopleintheCAACwanttobuymorecomputers?
3.Askthenextstudenttocorrectthemistakesifany
StepIVDiscussion
1.AskSstoworkinagroupoffourtodiscussthatwhethercomputersareusefulinourdailystudyofEnglish
2.Askeachgrouptopresenttheirideaandopinions
StepVLanguagePoints
1.WritedowntheusefulexpressionsandaskSstoexplainandrepeatthesentencesteachershavegiventhem
2.AskSstomakeashortpassagebyusingthewordsandexpressionstheyhavelearnedOnepossibleanswer:
Inmyopinion,studyingabroadisverygoodforthosestudentswhowanttoimprovetheirlanguage,becauseiftheymakeadecisiontogoabroadtostudy,theirEnglishwillbegreatlyimproved.Theyalsocancorrecttheirpronouncingmistakes.Atonetime,therewasnochanceforChinesepeopletogotoothercountries.Butnowwecanbeapassengerontheplanetoothercountry.Webelieveitisnecessarytochangeourlifeforabetterone.
3.First,askSstorepeattheabovepassage
4.Askthemtomakeanewonebyusingatleast3ofthenewwordsandexpressionstheyhavelearned
StepVIHomework
AskSstowritetheirnewpassageandhandinnexttime
jAb88.com

探究活动
Discussthequestions:
1．Whatkindofmachineisthecomputer?(wonderful)
2．Whatkindofinventionisit?(important)
3．Whyistherealotofinformationinthecomputer?
(haveamemory,store,takeout)
4．Whatkindofworkcantheydo?(peoplecando)
5．Whatdothestudentsneedtolearn?(howtousethecomputer)

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Unit3Computer（VocabularyandUsefulExpressions）教案

一名优秀的教师在教学时都会提前最好准备，作为教师就要好好准备好一份教案课件。教案可以让学生们能够在上课时充分理解所教内容，帮助教师缓解教学的压力，提高教学质量。所以你在写教案时要注意些什么呢？考虑到您的需要，小编特地编辑了“Unit3Computer（VocabularyandUsefulExpressions）教案”，欢迎阅读，希望您能够喜欢并分享！

Unit3Computer
VocabularyandUsefulExpressions
common
n.1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。2.incommon:insharedpossession3.outofcommon:unusualadj.1.oforassociatedwiththegreatmassesofpeople:Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:commondecency.3.commontoorsharedbytwoormoreparties:commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:forthecommongood.6.commonlyencountered:acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:commonparlance.8.lackingrefinementorcultivationortaste:behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:produced...thecommonclothsusedbythepoorerpopulation.
simple
n.1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj.1.notelaborateinstyle;unornamented:asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:asimpleproblem.4.easyandnotinvolvedorcomplicated:asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:simplecourtesy.
technology
n.1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems
universal
n.couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj.ofworldwidescopeorapplicability:universalexperience.
mathematical
adj.1.statisticallypossiblethoughhighlyimprobable:haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:amathematicalwhiz.
artificial
adj.1.contrivedbyartratherthannature:artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:Herhusbandhatedtheartificialhumility.
disagree
v.1.bedifferentfromoneanother2.beofdifferentopinions:Shedisagreeswithherhusbandonmanyquestions.
disadvantage
n.thequalityofhavinganinferiororlessfavorablepositionv.putatadisadvantage;hinder,harm:Thisruleclearlydisadvantagesme.
choice
n.1.theactofchoosingorselecting:Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:Myonlychoiceistorefuse.
adj.1.ofsuperiorgrade:choicewines.2.appealingtorefinedtaste:choicewine.
material
n.1.thingsneededfordoingormakingsomething:writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:Shemeasuredoffenoughmaterialforadress.
adj.1.directlyrelevanttoamatterespeciallyalawcase:Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:materialneeds.3.concernedwithworldlyratherthanspiritualinterests:materialpossessions.4.derivedfromorcomposedofmatter:Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary
mate
n.1.thepartnerofananimal(especiallyasexualpartner):Helovedthemareandallhermates.2.afellowmemberofateam:Itwashisfirststartagainsthisformerteammates.
create
v.1.investwithanewtitle,office,orrank:Createoneapeer.2.createbyartisticmeans:Createapoem.3.bringintoexistence:Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:createafuror.
move
n.1.theactofdecidingtodosomething:Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:Movementisasignoflife.v.1.disposeofbyselling:Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):Wemustmovequickly.9.changelocation;move,travel,orproceed:Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:Thismovedmetosacrificemycareer.
brain
n.1.partofthecentralnervoussystemthatincludesallthehighernervouscenters;enclosedwithintheskull;continuouswiththespinalcord2.mentalability:He’sgotplentyofbrainsbutnocommonsense.
spoil
n.1.theactofstrippingandtakingbyforce2.theactofspoilingsomethingbycausingdamagetoit:Herspoilingmydresswasdeliberate.3.(usuallyplural)valuablestakenbyviolence(especiallyinwar):Tothevictorbelongthespoilsoftheenemy.v.1.becomeunfitforconsumptionoruse:Themeatmustbeeatenbeforeitspoils.2.haveastrongdesireorurgetodosomething:Heisspoilingforafight.
mop
n.cleaningimplementconsistingofabsorbentmaterialfastenedtoahandle;forcleaningfloorsv.1.makeasadfaceandthrustoutone’slowerlip:Mopandmow.)2.towashorwipewithorasifwithamop:Mopthehallwaynow.
wander
v.1.goviaanindirectrouteoratnosetpace:Afterdinner,wewanderedintotown.2.moveaboutaimlesslyorwithoutanydestination,ofteninsearchoffoodoremployment:ThewanderingJew.3.loseclarityorturnasideespeciallyfromthemainsubjectofattentionorcourseofargumentinwriting,thinking,orspeaking:Hermindwanders.4.besexuallyunfaithfultoone’spartnerinmarriage:Mightherhusbandbewandering?5.tomoveorcausetomoveinasinuous,spiral,orcircularcourse:Sometimes,thegoutwandersthroughtheentirebody.

人教版高中英语必修2教案Unit3Computer

教案课件是每个老师工作中上课需要准备的东西，准备教案课件的时刻到来了。只有写好教案课件计划，才能规范的完成工作！你们会写适合教案课件的范文吗？下面是小编为大家整理的“人教版高中英语必修2教案Unit3Computer”，欢迎阅读，希望您能阅读并收藏。

Unit3ComputerPartOne:TeachingDesign(第一部分：教学设计)

Period1:Asamplelessonplanforreading

(WHOAMI?)

Aims

Totalkaboutcomputer

Toreadaboutcomputer

Procedures

I.WarmingupWarmingupbytalkingaboutcomputer

Lookatthepicturesonpage17.Whatarethey?Whatdotheyhaveincommon?Yes,theyarecomputers.Thenwhatisacomputer?

Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.

计算机室

Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperatingsystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.

曙光3000巨型计算机

Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.

Insomecountriesoldcomputersarerecycled(melteddown)togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.

Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.

Computerjargon计算机行话

Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).

Examplesofjargon:

Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.

Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibble

CPU–CentralProcessingUnit,Anothernameforprocessor

Data-Informationstoredonacomputer

Disk-Aplacetostoredata.

Email-Electronicmail.

GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.

Load-Getdatafromadisk

Nibble-HalfaByte

Save-Putdataonadisk

RAM–random-accessmemory(随机存取存储器),themorethebetter.

USB-UniversalSerialBus（通用串行总线，一种简化了插接多种附件的薄型插座）

WWW-WorldWideWeb,partoftheInternet

II.Pre-reading

1.QuestioningandansweringWhatdoyouknowaboutcomputer?

●Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.

●Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.

●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.●aprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations(includingarithmeticandlogicoperations)withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.

●Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.●amachineforperformingcalculationsautomatically

calculator:anexpertatcalculation(oratoperatingcalculatingmachines)

●Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured(usuallyby,programming)acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive2.DiscussingandsharingHowhavecomputerschangedourlives?

Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem(amodulator/demodulatorcircuitforencoding/decodingcomputerchatter)toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywhere----changingourlivesmorethananytechnologysincetheautomobile.

Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.

III.Reading

1.ListeningandreadingtotherecordingofthetextWHOAMI?

Turntopage18andlistenandreadtotherecordingofthetext.Payattentiontothepauses,pronunciationandintonationofthenativereader.

2.Readingaloudandunderliningexpressions

Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.CollocationsfromWHOAMI?

beginas…,acalculatingmachine,bebuiltas…,followinstructionsfrom…,soundsimple,atthetime,atechnologicalrevolution,writeabook,make…work,solveproblems,becomehuge,hadartificialintelligence,gobackto…,thesizeof…,goby,changesize,becomesmallandthin,getquick,standtherebyoneself,beconnectedby…,shareinformationby…,talkto…,bring…into…,dealwith…,communicatewith…,servethehumanrace

3.Reading,identifyingandsettling

Attention,please!Itistimetoskimthetextonemoretimeandidentifythedifficultsentences.Tryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongyourgroupmembers.Youmayalsoputyourquestionstomeforhelp.

Chat（online）（在线）聊天

Tochatistotalkaboutordinarythingsthatarenotveryimportant.Youcanchattoonepersonortomanypeople.PeoplealsousethiswordnowforpartsoftheInternetwherewecantalkwithmanydifferentpeopleatthesametime.Usually,youchatontheinternetinachatroomormessagingservicelikeAOL(AmericanOn-Line)InstantMessenger(AIM),YahooMessenger,orMSNMessenger.

4.Readingandtransferring

Scanthetextforinformationtocompletethetablebelow,describingthedevelopmentofcomputer.In1642In1822In1936In1960sIn1970sIV.Closingdownbydoingcomprehendingexercises

Turntopage18andinpairsdothecomprehendingexercisesNo.1and2.

Period2:AsamplelessonplanforLearningaboutLanguage

(ThePresentPerfectPassiveVoice)

Aims

TolearntouseThePresentPerfectPassiveVoice

Todiscoverusefulwordsandexpression

Todiscoverusefulstructures

ProceduresI.Warmingupbyreadingtothetape

Tobeginwith,turntopage18,listeningtoandreadingtotherecordingofthetextWHOAMI?Attentiongoestothepausesandintonation,aswellasthepronunciationofthereader.

II.Discoveringusefulwordsandexpressions

Inpairsdotheexercises1,2and3onpages19and20.Youmustfinishthemin10minutes.

III.Learningaboutgrammar

1.PassiveVoice—Overview

TenseorModel

PassiveSentence

SimplePresent

TheTOEFLexamisgiveneverysixmonths.

Simplepast

TheTOEFLexamwasgivenlastmonth.

SimpleFuture

TheTOEFLexamthisyearwillbegivenonOctober15.

PresentContinuous

TheTOEFLexamisbeinggiveneveryyear.

Presentperfect

TheTOEFLexamhasbeengiveneveryyearsince1950.

Pastperfect

TheTOEFLexamhadbeengivenbeforetheVietnamWaroccurred.

SimpleModal

TheTOEFLexamshouldbegiventoeveryForeignstudent.

PastModal

TheTOEFLexamshouldhavebeengiventoalltoenterUScolleges.

2.ThePresentPerfectPassiveVoice

ThestructureofThePresentPerfectPassiveVoiceis:have/has＋been＋~ed

IV.Readingaloudanddiscovering

Nowgobacktopage18toreadaloudanddiscoverinthetextexamplesofThePresentPerfectPassiveVoice.

Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.

Sincethen,myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationwitheachotheraroundtheworldbytheInternet.

V.Discoveringusefulstructure

Weshalldogrammarexercises1,2and3onpage20.VI.Closingdownbydoingaquiz

Correctthemistakesinthesepassivevoicesentences

Example:Thehousewasbuildin1880.(correct=Thehousewasbuiltin1880.)

1.3000employeeswerelayingoff.

2.Astorywillmadeup.

3.Anideawasputtedforwardfordiscussion.

4.Hasthebookbeengivebacktoyouyet?

5.Mybankloanwillbepayedoffinfiveyearstime.

6.Nothingcanbeholdagainstme.

7.Ourallieswillbelendsupport.

8.Shehasneverheardof.

9.Shewasbeingknockeddownbyabus.

10.Shewaslettedoffwithafine.

11.Thecandlewasblowoutbythedraught.

12.Thecriminalwerelockedup.

13.Thefloodwaterwasbekeptbackbybarriers.

14.Theinconveniencewillmadeupforbythismoney.

15.Thekeysmusthavebeenbeingleftbehind.

16.Theoldcinemaisbeingpulldown.

17.Theprotestersbeingheldbackbythepolice.

18.Theroadwasblockingoff.

19.Thirtymorepeoplewerelaidofflastweek.

20.Yourjacketcanbehangedupoverthere.

Period3:AsamplelessonplanforUsingLanguage

(ANDY—THEANDROID)

Aims

TodiscussaboutIT

TowriteareportaboutIT

ToreadaboutandroidsorrobotsProcedures

I.WarmingupbytalkingaboutIT

WhatisInformationtechnology?Informationtechnology(IT)orinformationandcommunicationtechnology(ICT)isthetechnologyrequiredforinformationprocessing.Inparticulartheuseofelectroniccomputersandcomputersoftwaretoconvert,store,protect,process,transmit,andretrieveinformationfromanywhere,anytime.

II.Listeningandwriting

Turntopage21.LookatthepicturesandlistentoaconversationaboutdifferentkindsofinformationtechnologyorIT,discussandwritedowningroupstheadvantagesanddisadvantagesofeachkind.

III.Speakingandwriting

Supposeyouandyourpartneraregoingtohelpchoosecomputersforyourschool.Nowtalkaboutthespecialthingseachofthecomputercandoandwriteareporttoyourheadmaster.

IV.Reading,underliningandspeaking

Itissaidthatcomputerscouldbeputintoandroidsorrobots.ReadthetextAndy—TheAndroid,underliningalltheexpressionsandthinkofthefunyoucouldhave!

ExpressionsfromAndy—TheAndroid

partofafootballteam,onceayear,gettogether,playafootballgame,beas…as…,infat,looklike…,onthefootballteam,runfast,thinklikeahuman,shoutto…,incomputerlanguage,haveagoodshotforagoal,getsecondplace,winthefirstplace,haveanewkindofprogram,improveone’sintelligence,createabettersystem,playagainstahumanteam,inaway,program…with…,makeup…,afterall,withthehelpof…

V.Writingaletter

Supposeyouareanandroid.Whatwouldsaytoaspoiledchildwhowouldnotdohishomework?Writealettertotheboy.

Android

Anandroidisanartificiallycreatedbeingthatresemblesahumanbeing.ThewordderivesfromGreekAndr-‘man,human’andthesuffix-eidesusedtomean‘ofthespecies,kind,alike’(fromeidos‘species’).

Theworddroid,arobotintheStarWarsuniverse,isderivedfromthismeaning.Somepeoplemaintainthat,etymologically,thewordandroidmeansresemblingamalehumanandthatarobotresemblingawomanshouldlogicallybecalledagynoidforsexistlanguagetobeavoided;however,thiswordisnotcommonlyused.

Unlikethetermsrobot(amechanicalbeing)andcyborg(abeingthatispartlyorganicandpartlymechanical),thewordandroidhasbeenusedinliteratureandothermediatodenoteseveraldifferentkindsofman-made,autonomouscreations:

arobotthatcloselyresemblesahuman

acyborgthatcloselyresemblesahuman

anartificiallycreated,yetprimarilyorganic,beingthatcloselyresemblesahuman

Althoughessentiallyhumanmorphologyisnottheidealformforworkingrobots,thefascinationindevelopingrobotsthatcanmimicitcanbefoundhistoricallyintheassimilationoftwoconcepts:simulacra(devicesthatexhibitlikeness)andautomata(devicesthathaveindependence).

ThetermandroidwasfirstusedbytheFrenchauthorMathiasVilliersdelIsle-Adam(1838-1889)inhisworkTomorrow’sEve,featuringaman-madehuman-likerobotnamedHadaly.Assaidbytheofficerinthestory,“InthisageofRealienadvancement,whoknowswhatgoesoninthemindofthoseresponsibleforthesemechanicaldolls.”找教案http://

PartTwTeachingResources(第二部分：教学资源)

Section1:AtextstructureanalysisofWHOAMI?

I.TypeofwritingandsummaryofWHOAMI?

Typeofwriting

Thisisapieceofnarrativewriting.

Mainideaofthepassage

Beginningasjustacalculatingmachinein1642inFrance,thecomputerhasbeenexperiencingimprovementagainandoveragainover300yearsormore,whichhasnotonlymadeitmorebeautifulandintelligentbutalsochangedman’slifeagreatdeal!

Topicsentenceof1stparagraph

Ibeganasacalculatingmachinein1642inFrance.

Topicsentenceof2ndparagraph

NoonecouldrecognizemeafterIgotmynewtransistorsinthe1960s.

II.Achainofeventsshowingthedevelopmentofcomputeracalculatingmachinein1642inFrance→anAnalyticalMachinein1822→a“universalmachine.”in1936→thesizeofalargeroom→madesmallerandsmaller→gettingnewtransistorsin1960s→cleverandquicker→anetworkintheearly1960s→talkingtohumansusingBASICintheearly1960s→broughtintopeople’shomesin1970s→Internet

III.AretoldversionofthetextWHOAMI?

I,thecomputer,wasacalculatingmachinein1642inFrance.ThenIwasbuiltasanAnalyticalMachinein1822,whichwasatechnologicalrevolution.Ibecamea“universalmachine”in1936tosolveanymathematicalproblem.IwasnotverybigatfirstthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.

Gettingnewtransistorsin1960sIbecamecleverandquicker.Iwasconnectedwithothercomputersandturnedouttopartofanetworkintheearly1960s.ThenIbegantalkingtohumansusingBASICintheearly1960s.In1970sIwasbroughtintopeople’shomes,andcametheInternet.

Section2:Backgroundinformationcomputers

I.HowDoComputersWork?

ComputerBasics

Toaccomplishataskusingacomputer,youneedacombinationofhardware,software,andinput.

Hardwareconsistsofdevices,likethecomputeritself,themonitor,keyboard,printer,mouseandspeakers.Insideyourcomputertherearemorebitsofhardware,includingthemotherboard,whereyouwouldfindthemainprocessingchipsthatmakeupthecentralprocessingunit(CPU).Thehardwareprocessesthecommandsitreceivesfromthesoftware,andperformstasksorcalculations.

Softwareisthenamegiventotheprogramsthatyouinstallonthecomputertoperformcertaintypesofactivities.Thereisoperatingsystemsoftware,suchastheAppleOSforaMacintosh,orWindows95orWindows98foraPC.Thereisalsoapplicationsoftware,likethegamesweplayorthetoolsweusetocomposelettersordomathproblems.

Youprovidetheinput.Whenyoutypeacommandorclickonanicon,youaretellingthecomputerwhattodo.Thatiscalledinput.

HowTheyWorkTogetherFirst,youprovideinputwhenyouturnonthecomputer.ThenthesystemsoftwaretellstheCPUtostartupcertainprogramsandtoturnonsomehardwaredevicessothattheyarereadyformoreinputfromyou.Thiswholeprocessiscalledbootingup.

Thenextstephappenswhenyouchooseaprogramyouwanttouse.Youclickontheiconorenteracommandtostarttheprogram.Let’susetheexampleofanInternetbrowser.Oncetheprogramhasstarted,itisreadyforyourinstructions.Youeitherenteranaddress(calledaURL,whichstandsforUniformResourceLocator),orclickonanaddressyou’vesavedalready.Ineithercase,thecomputernowknowswhatyouwantittodo.Thebrowsersoftwarethengoesouttofindthataddress,startingupotherhardwaredevices,suchasamodem,whenitneedsthem.Ifitisabletofindthecorrectaddress,thebrowserwillthentellyourcomputertosendtheinformationfromthewebpageoverthephonewireorcabletoyourcomputer.Eventually,youseethewebsiteyouwerelookingfor.

Ifyoudecideyouwanttoprintthepage,youclickontheprintericon.Again,youhaveprovidedinputtotellthecomputerwhattodo.Thebrowsersoftwaredetermineswhetheryouhaveaprinterattachedtoyourcomputer,andwhetheritisturnedon.Itmayremindyoutoturnontheprinter,thensendtheinformationaboutthewebpagefromyourcomputeroverthecabletotheprinter,whereitisprintedout.II.Television

Oldportabletelevision

Atelevision(alsoTVortelly)isadevice(tool)withascreenthatreceivesbroadcastsignalsandturnsthemintopicturesandsound.Theword“television”comesfromthewordstele(Greekforfaraway)andvision(seeing).

UsuallyaTVlookslikeabox.OlderTVshadlargewoodenframesandsatonthefloorlikefurniture.NewerTVsbecamesmallersotheycouldfitonshelves,orevenportablesoyoucouldtakeitwithyouwhereveryouwent.ThesmallestTVscanfitinyourhand.ThelargestTVscantakeupawholewallinyourhouse,andmaysitonthefloor,orbejustalargeflatscreenthatcanbemountedonthewall.ManyTVsarenowmadeinwidescreenshapelikemovietheatrescreens,ratherthanold,moresquareTVs.

Atelevisionhasanantenna(oraerial),orithasacable.Thisgetsthesignalfromtheair,orcableprovider.TVscanalsoshowmoviesfromDVDplayersorVCRs.TVscanbeconnectedtocomputersandgameconsoles,usuallythroughakindofsocketcalled“SCART”.

III.WeborWorldWideWeb

TheWorldWideWebisthepartoftheInternetthatcontainswebsitesandwebpages.ItisnotusedtodescribeWebPagesthatareusedofflinewherenetservicesarenotavailable,ornocomputernetworkexists-suchasWikipediaonCD.Inthiscasenorealphysicalsiteexistsotherthantheplacewherethecomputeris.BlogandWikicapabilitieswillalsonotbeavailablebecausetheserequireacommunicationwithothercomputers.IV.Radio

Radioisacommunicationsinvention.Thoughoriginallyusedtocommunicatebetweentwopeople,itisnowusedtolistentomusic,news,andpeopletalking.RadioshowswerethepredecessortoTVprograms.V.DVD

DVDmostcommonlystandsfor“digitalversatiledisk”.ItcanplayvideothatisofahigherqualitythanaVHStape.VI.TwokindsofDVD

Theycanalsohold4.7GBofinformationasopposedtothe700MBthataCDcanhold.AplusofusingaDVDforavideoistheabilitytohaveinteractivemenusandbonusfeaturessuchasdeletedscenesandcommentaries.VII.Email

Email(electronicmail)isamessage,usuallytext,sentfromoneInternetusertoanother.Emailisquickerthansnailmail(mail)whensendingoverlongdistancesandisusuallyfree.Tosendorreceiveanemail,acomputerwithamodemandtelephonelineconnectedtotheInternet,andanemailprogramarerequired.Emailaddressesaregenerallyformatedlikethis:[emailprotected](comorfrororgorukorother).

Somecompaniesletyousendandreceiveemailforfreefromawebsite.Gmail,HotmailandYahoo!dothis.VIII.Human

Herearetwohumans.Amanisontheleftandawomanisontheright.Ahumanorhumanbeingisaperson,likeyou.Amalehumanisaman,afemalehumanisawoman.Ifyouthinkaboutallhumansinthewholeworld,theyarecalledhumanity.Inthepast,peoplehavealsousedmanandmankindtomeanallhumans.HumansarecalledHomosapiensbyscientists.Humansareananimalspeciesthatbelongstothegroupcalledprimates.Monkeysareprimatestoo,buttheprimatesmostlikepeoplearegorillasandchimpanzees.Mostscientiststhinkthatchimpanzeesandhumanscamefromacommonancestorbywhatiscalledevolution.Otheranimalsevenmorelikehumansthanchimpanzeesoncelivedtoo,buttheyarenowextinct.Humanrightsarethosethingsthateveryonedeservesandthewaytheyshouldbetreatedbyotherpeople.Section3:WordsandexpressionsfromUnit3Computers

common

n.1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。2.incommon:insharedpossession3.outofcommon:unusualadj.1.oforassociatedwiththegreatmassesofpeople:Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:commondecency.3.commontoorsharedbytwoormoreparties:commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:forthecommongood.6.commonlyencountered:acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:commonparlance.8.lackingrefinementorcultivationortaste:behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:produced...thecommonclothsusedbythepoorerpopulation.

simple

n.1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj.1.notelaborateinstyle;unornamented:asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:asimpleproblem.4.easyandnotinvolvedorcomplicated:asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:simplecourtesy.

technology

n.1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems

universal

n.couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj.ofworldwidescopeorapplicability:universalexperience.

mathematical

adj.1.statisticallypossiblethoughhighlyimprobable:haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:amathematicalwhiz.

artificial

adj.1.contrivedbyartratherthannature:artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:Herhusbandhatedtheartificialhumility.

disagree

v.1.bedifferentfromoneanother2.beofdifferentopinions:Shedisagreeswithherhusbandonmanyquestions.

disadvantage

n.thequalityofhavinganinferiororlessfavorablepositionv.putatadisadvantage;hinder,harm:Thisruleclearlydisadvantagesme.

choice

n.1.theactofchoosingorselecting:Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:Myonlychoiceistorefuse.

adj.1.ofsuperiorgrade:choicewines.2.appealingtorefinedtaste:choicewine.

material

n.1.thingsneededfordoingormakingsomething:writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:Shemeasuredoffenoughmaterialforadress.

adj.1.directlyrelevanttoamatterespeciallyalawcase:Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:materialneeds.3.concernedwithworldlyratherthanspiritualinterests:materialpossessions.4.derivedfromorcomposedofmatter:Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary

mate

n.1.thepartnerofananimal(especiallyasexualpartner):Helovedthemareandallhermates.2.afellowmemberofateam:Itwashisfirststartagainsthisformerteammates.

create

v.1.investwithanewtitle,office,orrank:Createoneapeer.2.createbyartisticmeans:Createapoem.3.bringintoexistence:Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:createafuror.

move

n.1.theactofdecidingtodosomething:Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:Movementisasignoflife.v.1.disposeofbyselling:Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):Wemustmovequickly.9.changelocation;move,travel,orproceed:Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:Thismovedmetosacrificemycareer.

brain

n.1.partofthecentralnervoussystemthatincludesallthehighernervouscenters;enclosedwithintheskull;continuouswiththespinalcord2.mentalability:He’sgotplentyofbrainsbutnocommonsense.

spoil

n.1.theactofstrippingandtakingbyforce2.theactofspoilingsomethingbycausingdamagetoit:Herspoilingmydresswasdeliberate.3.(usuallyplural)valuablestakenbyviolence(especiallyinwar):Tothevictorbelongthespoilsoftheenemy.v.1.becomeunfitforconsumptionoruse:Themeatmustbeeatenbeforeitspoils.2.haveastrongdesireorurgetodosomething:Heisspoilingforafight.

mop

n.cleaningimplementconsistingofabsorbentmaterialfastenedtoahandle;forcleaningfloorsv.1.makeasadfaceandthrustoutone’slowerlip:Mopandmow.)2.towashorwipewithorasifwithamop:Mopthehallwaynow.

wander

v.1.goviaanindirectrouteoratnosetpace:Afterdinner,wewanderedintotown.2.moveaboutaimlesslyorwithoutanydestination,ofteninsearchoffoodoremployment:ThewanderingJew.3.loseclarityorturnasideespeciallyfromthemainsubjectofattentionorcourseofargumentinwriting,thinking,orspeaking:Hermindwanders.4.besexuallyunfaithfultoone’spartnerinmarriage:Mightherhusbandbewandering?5.tomoveorcausetomoveinasinuous,spiral,orcircularcourse:Sometimes,thegoutwandersthroughtheentirebody.

人教英语新课标必修2全册精品教案(Unit3Computer)

一名合格的教师要充分考虑学习的趣味性，高中教师要准备好教案，这是高中教师需要精心准备的。教案可以让讲的知识能够轻松被学生吸收，帮助高中教师有计划有步骤有质量的完成教学任务。您知道高中教案应该要怎么下笔吗？小编经过搜集和处理，为您提供人教英语新课标必修2全册精品教案(Unit3Computer)，欢迎阅读，希望您能阅读并收藏。

Unit3Computer

PartOne:TeachingDesign(第一部分：教学设计)

Period1:Asamplelessonplanforreading

(WHOAMI?)

Aims

Totalkaboutcomputer

Toreadaboutcomputer

Procedures

I.Warmingup

Warmingupbytalkingaboutcomputer

Lookatthepicturesonpage17.Whatarethey?Whatdotheyhaveincommon?Yes,theyarecomputers.Thenwhatisacomputer?

Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.

计算机室

Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperatingsystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.

曙光3000巨型计算机

Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.

Insomecountriesoldcomputersarerecycled(melteddown)togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.

Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.

Computerjargon计算机行话

Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).

Examplesofjargon:

Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.

Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibble

CPU–CentralProcessingUnit,Anothernameforprocessor

Data-Informationstoredonacomputer

Disk-Aplacetostoredata.

Email-Electronicmail.

GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.

Load-Getdatafromadisk

Nibble-HalfaByte

Save-Putdataonadisk

RAM–random-accessmemory(随机存取存储器),themorethebetter.

USB-UniversalSerialBus（通用串行总线，一种简化了插接多种附件的薄型插座）

WWW-WorldWideWeb,partoftheInternet

II.Pre-reading

1.QuestioningandansweringWhatdoyouknowaboutcomputer?

●Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.

●Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.

●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.

●aprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations(includingarithmeticandlogicoperations)withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.

●Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.

●amachineforperformingcalculationsautomatically

calculator:anexpertatcalculation(oratoperatingcalculatingmachines)

●Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured(usuallyby,programming)acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive

2.DiscussingandsharingHowhavecomputerschangedourlives?

Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem(amodulator/demodulatorcircuitforencoding/decodingcomputerchatter)toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywhere----changingourlivesmorethananytechnologysincetheautomobile.

Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.

III.Reading

1.ListeningandreadingtotherecordingofthetextWHOAMI?

Turntopage18andlistenandreadtotherecordingofthetext.Payattentiontothepauses,pronunciationandintonationofthenativereader.

2.Readingaloudandunderliningexpressions

Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.

CollocationsfromWHOAMI?

beginas…,acalculatingmachine,bebuiltas…,followinstructionsfrom…,soundsimple,atthetime,atechnologicalrevolution,writeabook,make…work,solveproblems,becomehuge,hadartificialintelligence,gobackto…,thesizeof…,goby,changesize,becomesmallandthin,getquick,standtherebyoneself,beconnectedby…,shareinformationby…,talkto…,bring…into…,dealwith…,communicatewith…,servethehumanrace

3.Reading,identifyingandsettling

Attention,please!Itistimetoskimthetextonemoretimeandidentifythedifficultsentences.Tryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongyourgroupmembers.Youmayalsoputyourquestionstomeforhelp.

Chat（online）（在线）聊天

Tochatistotalkaboutordinarythingsthatarenotveryimportant.Youcanchattoonepersonortomanypeople.PeoplealsousethiswordnowforpartsoftheInternetwherewecantalkwithmanydifferentpeopleatthesametime.Usually,youchatontheinternetinachatroomormessagingservicelikeAOL(AmericanOn-Line)InstantMessenger(AIM),YahooMessenger,orMSNMessenger.

4.Readingandtransferring

Scanthetextforinformationtocompletethetablebelow,describingthedevelopmentofcomputer.

In1642

In1822

In1936

In1960s

In1970s

IV.Closingdownbydoingcomprehendingexercises

Turntopage18andinpairsdothecomprehendingexercisesNo.1and2.

Period2:AsamplelessonplanforLearningaboutLanguage

(ThePresentPerfectPassiveVoice)

Aims

TolearntouseThePresentPerfectPassiveVoice

Todiscoverusefulwordsandexpression

Todiscoverusefulstructures

ProceduresI.Warmingupbyreadingtothetape

Tobeginwith,turntopage18,listeningtoandreadingtotherecordingofthetextWHOAMI?Attentiongoestothepausesandintonation,aswellasthepronunciationofthereader.

II.Discoveringusefulwordsandexpressions

Inpairsdotheexercises1,2and3onpages19and20.Youmustfinishthemin10minutes.

III.Learningaboutgrammar

1.PassiveVoice—Overview

TenseorModel

PassiveSentence

SimplePresent

TheTOEFLexamisgiveneverysixmonths.

Simplepast

TheTOEFLexamwasgivenlastmonth.

SimpleFuture

TheTOEFLexamthisyearwillbegivenonOctober15.

PresentContinuous

TheTOEFLexamisbeinggiveneveryyear.

Presentperfect

TheTOEFLexamhasbeengiveneveryyearsince1950.

Pastperfect

TheTOEFLexamhadbeengivenbeforetheVietnamWaroccurred.

SimpleModal

TheTOEFLexamshouldbegiventoeveryForeignstudent.

PastModal

TheTOEFLexamshouldhavebeengiventoalltoenterUScolleges.

2.ThePresentPerfectPassiveVoice

ThestructureofThePresentPerfectPassiveVoiceis:have/has＋been＋~ed

IV.Readingaloudanddiscovering

Nowgobacktopage18toreadaloudanddiscoverinthetextexamplesofThePresentPerfectPassiveVoice.

Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.

Sincethen,myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationwitheachotheraroundtheworldbytheInternet.

V.Discoveringusefulstructure

Weshalldogrammarexercises1,2and3onpage20.

VI.Closingdownbydoingaquiz

Correctthemistakesinthesepassivevoicesentences

Example:Thehousewasbuildin1880.(correct=Thehousewasbuiltin1880.)

1.3000employeeswerelayingoff.

2.Astorywillmadeup.

3.Anideawasputtedforwardfordiscussion.

4.Hasthebookbeengivebacktoyouyet?

5.Mybankloanwillbepayedoffinfiveyearstime.

6.Nothingcanbeholdagainstme.

7.Ourallieswillbelendsupport.

8.Shehasneverheardof.

9.Shewasbeingknockeddownbyabus.

10.Shewaslettedoffwithafine.

11.Thecandlewasblowoutbythedraught.

12.Thecriminalwerelockedup.

13.Thefloodwaterwasbekeptbackbybarriers.

14.Theinconveniencewillmadeupforbythismoney.

15.Thekeysmusthavebeenbeingleftbehind.

16.Theoldcinemaisbeingpulldown.

17.Theprotestersbeingheldbackbythepolice.

18.Theroadwasblockingoff.

19.Thirtymorepeoplewerelaidofflastweek.

20.Yourjacketcanbehangedupoverthere.

Period3:AsamplelessonplanforUsingLanguage

(ANDY—THEANDROID)

Aims

TodiscussaboutIT

TowriteareportaboutIT

Toreadaboutandroidsorrobots

Procedures

I.WarmingupbytalkingaboutIT

WhatisInformationtechnology?Informationtechnology(IT)orinformationandcommunicationtechnology(ICT)isthetechnologyrequiredforinformationprocessing.Inparticulartheuseofelectroniccomputersandcomputersoftwaretoconvert,store,protect,process,transmit,andretrieveinformationfromanywhere,anytime.

II.Listeningandwriting

Turntopage21.LookatthepicturesandlistentoaconversationaboutdifferentkindsofinformationtechnologyorIT,discussandwritedowningroupstheadvantagesanddisadvantagesofeachkind.

III.Speakingandwriting

Supposeyouandyourpartneraregoingtohelpchoosecomputersforyourschool.Nowtalkaboutthespecialthingseachofthecomputercandoandwriteareporttoyourheadmaster.

IV.Reading,underliningandspeaking

Itissaidthatcomputerscouldbeputintoandroidsorrobots.ReadthetextAndy—TheAndroid,underliningalltheexpressionsandthinkofthefunyoucouldhave!

ExpressionsfromAndy—TheAndroid

partofafootballteam,onceayear,gettogether,playafootballgame,beas…as…,infat,looklike…,onthefootballteam,runfast,thinklikeahuman,shoutto…,incomputerlanguage,haveagoodshotforagoal,getsecondplace,winthefirstplace,haveanewkindofprogram,improveone’sintelligence,createabettersystem,playagainstahumanteam,inaway,program…with…,makeup…,afterall,withthehelpof…

V.Writingaletter

Supposeyouareanandroid.Whatwouldsaytoaspoiledchildwhowouldnotdohishomework?Writealettertotheboy.

Android

Anandroidisanartificiallycreatedbeingthatresemblesahumanbeing.ThewordderivesfromGreekAndr-‘man,human’andthesuffix-eidesusedtomean‘ofthespecies,kind,alike’(fromeidos‘species’).

Theworddroid,arobotintheStarWarsuniverse,isderivedfromthismeaning.Somepeoplemaintainthat,etymologically,thewordandroidmeansresemblingamalehumanandthatarobotresemblingawomanshouldlogicallybecalledagynoidforsexistlanguagetobeavoided;however,thiswordisnotcommonlyused.

Unlikethetermsrobot(amechanicalbeing)andcyborg(abeingthatispartlyorganicandpartlymechanical),thewordandroidhasbeenusedinliteratureandothermediatodenoteseveraldifferentkindsofman-made,autonomouscreations:

arobotthatcloselyresemblesahuman

acyborgthatcloselyresemblesahuman

anartificiallycreated,yetprimarilyorganic,beingthatcloselyresemblesahuman

Althoughessentiallyhumanmorphologyisnottheidealformforworkingrobots,thefascinationindevelopingrobotsthatcanmimicitcanbefoundhistoricallyintheassimilationoftwoconcepts:simulacra(devicesthatexhibitlikeness)andautomata(devicesthathaveindependence).

ThetermandroidwasfirstusedbytheFrenchauthorMathiasVilliersdelIsle-Adam(1838-1889)inhisworkTomorrow’sEve,featuringaman-madehuman-likerobotnamedHadaly.Assaidbytheofficerinthestory,“InthisageofRealienadvancement,whoknowswhatgoesoninthemindofthoseresponsibleforthesemechanicaldolls.”

PartTwTeachingResources(第二部分：教学资源)

Section1:AtextstructureanalysisofWHOAMI?

I.TypeofwritingandsummaryofWHOAMI?

Typeofwriting

Thisisapieceofnarrativewriting.

Mainideaofthepassage

Beginningasjustacalculatingmachinein1642inFrance,thecomputerhasbeenexperiencingimprovementagainandoveragainover300yearsormore,whichhasnotonlymadeitmorebeautifulandintelligentbutalsochangedman’slifeagreatdeal!

Topicsentenceof1stparagraph

Ibeganasacalculatingmachinein1642inFrance.

Topicsentenceof2ndparagraph

NoonecouldrecognizemeafterIgotmynewtransistorsinthe1960s.

II.Achainofeventsshowingthedevelopmentofcomputer

acalculatingmachinein1642inFrance→anAnalyticalMachinein1822→a“universalmachine.”in1936→thesizeofalargeroom→madesmallerandsmaller→gettingnewtransistorsin1960s→cleverandquicker→anetworkintheearly1960s→talkingtohumansusingBASICintheearly1960s→broughtintopeople’shomesin1970s→Internet

III.AretoldversionofthetextWHOAMI?

I,thecomputer,wasacalculatingmachinein1642inFrance.ThenIwasbuiltasanAnalyticalMachinein1822,whichwasatechnologicalrevolution.Ibecamea“universalmachine”in1936tosolveanymathematicalproblem.IwasnotverybigatfirstthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.

Gettingnewtransistorsin1960sIbecamecleverandquicker.Iwasconnectedwithothercomputersandturnedouttopartofanetworkintheearly1960s.ThenIbegantalkingtohumansusingBASICintheearly1960s.In1970sIwasbroughtintopeople’shomes,andcametheInternet.

Section2:Backgroundinformationcomputers

I.HowDoComputersWork?

ComputerBasics

Toaccomplishataskusingacomputer,youneedacombinationofhardware,software,andinput.

Hardwareconsistsofdevices,likethecomputeritself,themonitor,keyboard,printer,mouseandspeakers.Insideyourcomputertherearemorebitsofhardware,includingthemotherboard,whereyouwouldfindthemainprocessingchipsthatmakeupthecentralprocessingunit(CPU).Thehardwareprocessesthecommandsitreceivesfromthesoftware,andperformstasksorcalculations.

Softwareisthenamegiventotheprogramsthatyouinstallonthecomputertoperformcertaintypesofactivities.Thereisoperatingsystemsoftware,suchastheAppleOSforaMacintosh,orWindows95orWindows98foraPC.Thereisalsoapplicationsoftware,likethegamesweplayorthetoolsweusetocomposelettersordomathproblems.

Youprovidetheinput.Whenyoutypeacommandorclickonanicon,youaretellingthecomputerwhattodo.Thatiscalledinput.

HowTheyWorkTogetherFirst,youprovideinputwhenyouturnonthecomputer.ThenthesystemsoftwaretellstheCPUtostartupcertainprogramsandtoturnonsomehardwaredevicessothattheyarereadyformoreinputfromyou.Thiswholeprocessiscalledbootingup.

Thenextstephappenswhenyouchooseaprogramyouwanttouse.Youclickontheiconorenteracommandtostarttheprogram.Let’susetheexampleofanInternetbrowser.Oncetheprogramhasstarted,itisreadyforyourinstructions.Youeitherenteranaddress(calledaURL,whichstandsforUniformResourceLocator),orclickonanaddressyou’vesavedalready.Ineithercase,thecomputernowknowswhatyouwantittodo.Thebrowsersoftwarethengoesouttofindthataddress,startingupotherhardwaredevices,suchasamodem,whenitneedsthem.Ifitisabletofindthecorrectaddress,thebrowserwillthentellyourcomputertosendtheinformationfromthewebpageoverthephonewireorcabletoyourcomputer.Eventually,youseethewebsiteyouwerelookingfor.

Ifyoudecideyouwanttoprintthepage,youclickontheprintericon.Again,youhaveprovidedinputtotellthecomputerwhattodo.Thebrowsersoftwaredetermineswhetheryouhaveaprinterattachedtoyourcomputer,andwhetheritisturnedon.Itmayremindyoutoturnontheprinter,thensendtheinformationaboutthewebpagefromyourcomputeroverthecabletotheprinter,whereitisprintedout.

II.Television

Oldportabletelevision

Atelevision(alsoTVortelly)isadevice(tool)withascreenthatreceivesbroadcastsignalsandturnsthemintopicturesandsound.Theword“television”comesfromthewordstele(Greekforfaraway)andvision(seeing).

UsuallyaTVlookslikeabox.OlderTVshadlargewoodenframesandsatonthefloorlikefurniture.NewerTVsbecamesmallersotheycouldfitonshelves,orevenportablesoyoucouldtakeitwithyouwhereveryouwent.ThesmallestTVscanfitinyourhand.ThelargestTVscantakeupawholewallinyourhouse,andmaysitonthefloor,orbejustalargeflatscreenthatcanbemountedonthewall.ManyTVsarenowmadeinwidescreenshapelikemovietheatrescreens,ratherthanold,moresquareTVs.

Atelevisionhasanantenna(oraerial),orithasacable.Thisgetsthesignalfromtheair,orcableprovider.TVscanalsoshowmoviesfromDVDplayersorVCRs.TVscanbeconnectedtocomputersandgameconsoles,usuallythroughakindofsocketcalled“SCART”.

III.WeborWorldWideWeb

TheWorldWideWebisthepartoftheInternetthatcontainswebsitesandwebpages.

ItisnotusedtodescribeWebPagesthatareusedofflinewherenetservicesarenotavailable,ornocomputernetworkexists-suchasWikipediaonCD.Inthiscasenorealphysicalsiteexistsotherthantheplacewherethecomputeris.BlogandWikicapabilitieswillalsonotbeavailablebecausetheserequireacommunicationwithothercomputers.

IV.Radio

Radioisacommunicationsinvention.Thoughoriginallyusedtocommunicatebetweentwopeople,itisnowusedtolistentomusic,news,andpeopletalking.RadioshowswerethepredecessortoTVprograms.

V.DVD

DVDmostcommonlystandsfor“digitalversatiledisk”.ItcanplayvideothatisofahigherqualitythanaVHStape.

VI.TwokindsofDVD

Theycanalsohold4.7GBofinformationasopposedtothe700MBthataCDcanhold.AplusofusingaDVDforavideoistheabilitytohaveinteractivemenusandbonusfeaturessuchasdeletedscenesandcommentaries.

VII.Email

Email(electronicmail)isamessage,usuallytext,sentfromoneInternetusertoanother.Emailisquickerthansnailmail(mail)whensendingoverlongdistancesandisusuallyfree.Tosendorreceiveanemail,acomputerwithamodemandtelephonelineconnectedtotheInternet,andanemailprogramarerequired.Emailaddressesaregenerallyformatedlikethis:[emailprotected](comorfrororgorukorother).

Somecompaniesletyousendandreceiveemailforfreefromawebsite.Gmail,HotmailandYahoo!dothis.

VIII.Human

Herearetwohumans.

Amanisontheleftandawomanisontheright.Ahumanorhumanbeingisaperson,likeyou.Amalehumanisaman,afemalehumanisawoman.Ifyouthinkaboutallhumansinthewholeworld,theyarecalledhumanity.Inthepast,peoplehavealsousedmanandmankindtomeanallhumans.

HumansarecalledHomosapiensbyscientists.Humansareananimalspeciesthatbelongstothegroupcalledprimates.Monkeysareprimatestoo,buttheprimatesmostlikepeoplearegorillasandchimpanzees.Mostscientiststhinkthatchimpanzeesandhumanscamefromacommonancestorbywhatiscalledevolution.Otheranimalsevenmorelikehumansthanchimpanzeesoncelivedtoo,buttheyarenowextinct.

Humanrightsarethosethingsthateveryonedeservesandthewaytheyshouldbetreatedbyotherpeople.

Section3:WordsandexpressionsfromUnit3Computers

common

n.1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。2.incommon:insharedpossession3.outofcommon:unusualadj.1.oforassociatedwiththegreatmassesofpeople:Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:commondecency.3.commontoorsharedbytwoormoreparties:commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:forthecommongood.6.commonlyencountered:acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:commonparlance.8.lackingrefinementorcultivationortaste:behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:produced...thecommonclothsusedbythepoorerpopulation.

simple

n.1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj.1.notelaborateinstyle;unornamented:asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:asimpleproblem.4.easyandnotinvolvedorcomplicated:asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:simplecourtesy.

technology

n.1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems

universal

n.couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj.ofworldwidescopeorapplicability:universalexperience.

mathematical

adj.1.statisticallypossiblethoughhighlyimprobable:haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:amathematicalwhiz.

artificial

adj.1.contrivedbyartratherthannature:artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:Herhusbandhatedtheartificialhumility.

disagree

v.1.bedifferentfromoneanother2.beofdifferentopinions:Shedisagreeswithherhusbandonmanyquestions.

disadvantage

n.thequalityofhavinganinferiororlessfavorablepositionv.putatadisadvantage;hinder,harm:Thisruleclearlydisadvantagesme.

choice

n.1.theactofchoosingorselecting:Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:Myonlychoiceistorefuse.

adj.1.ofsuperiorgrade:choicewines.2.appealingtorefinedtaste:choicewine.

material

n.1.thingsneededfordoingormakingsomething:writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:Shemeasuredoffenoughmaterialforadress.

adj.1.directlyrelevanttoamatterespeciallyalawcase:Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:materialneeds.3.concernedwithworldlyratherthanspiritualinterests:materialpossessions.4.derivedfromorcomposedofmatter:Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary

mate

n.1.thepartnerofananimal(especiallyasexualpartner):Helovedthemareandallhermates.2.afellowmemberofateam:Itwashisfirststartagainsthisformerteammates.

create

v.1.investwithanewtitle,office,orrank:Createoneapeer.2.createbyartisticmeans:Createapoem.3.bringintoexistence:Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:createafuror.

move

n.1.theactofdecidingtodosomething:Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:Movementisasignoflife.v.1.disposeofbyselling:Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):Wemustmovequickly.9.changelocation;move,travel,orproceed:Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:Thismovedmetosacrificemycareer.

brain

n.1.partofthecentralnervoussystemthatincludesallthehighernervouscenters;enclosedwithintheskull;continuouswiththespinalcord2.mentalability:He’sgotplentyofbrainsbutnocommonsense.

spoil

n.1.theactofstrippingandtakingbyforce2.theactofspoilingsomethingbycausingdamagetoit:Herspoilingmydresswasdeliberate.3.(usuallyplural)valuablestakenbyviolence(especiallyinwar):Tothevictorbelongthespoilsoftheenemy.v.1.becomeunfitforconsumptionoruse:Themeatmustbeeatenbeforeitspoils.2.haveastrongdesireorurgetodosomething:Heisspoilingforafight.

mop

n.cleaningimplementconsistingofabsorbentmaterialfastenedtoahandle;forcleaningfloorsv.1.makeasadfaceandthrustoutone’slowerlip:Mopandmow.)2.towashorwipewithorasifwithamop:Mopthehallwaynow.

wander

v.1.goviaanindirectrouteoratnosetpace:Afterdinner,wewanderedintotown.2.moveaboutaimlesslyorwithoutanydestination,ofteninsearchoffoodoremployment:ThewanderingJew.3.loseclarityorturnasideespeciallyfromthemainsubjectofattentionorcourseofargumentinwriting,thinking,orspeaking:Hermindwanders.4.besexuallyunfaithfultoone’spartnerinmarriage:Mightherhusbandbewandering?5.tomoveorcausetomoveinasinuous,spiral,orcircularcourse:Sometimes,thegoutwandersthroughtheentirebody.

Module3Unit3

作为优秀的教学工作者，在教学时能够胸有成竹，作为教师就要在上课前做好适合自己的教案。教案可以让学生更好的吸收课堂上所讲的知识点，帮助教师掌握上课时的教学节奏。教案的内容具体要怎样写呢？下面是小编精心收集整理，为您带来的《Module3Unit3》，欢迎您参考，希望对您有所助益！

Module3Unit3
一．词组
1．事实上________________________2.抚养;教育;提出(讨论等);呕吐______
3.对…作出解释;导致_______________4.与此相反;正相反_______________
5.挣得船费____________________6.偶然;无意中_____________________
7.衣衫褴褛_________________8.凝视;盯着看___________________
9.冒险________________________10.说实话_________________
11.一大笔；大量_____________12.以一种…的态度__________
13.对…没有耐心__________________14.…是某人的过错________________
15.允许某人做某事________________16.提前_______________
17.迷路；倾心于__________________18.打赌______________________
12.前进;可以;往下说_____________20.关于;至于_________________
二．单元重点词汇
1.scene场景；情景scenery自然风景；自然风光
sights名胜；人文景观（常用复数）view从远处或高处看到的景色
1)Thereisacrowd_________________oftheaccident.事故的现场挤满了人。
2)Themountainhotelofferedabeautiful_______.
3)Iprefertoseethehistorical________ofLondon.
4)Let’sstoptoadmirethebeautiful_________here.
2.Permit
1)Haveyouapermittofishinthislake?你有在这个湖里捕鱼的_________吗？
2)Wedonotpermit________intheoffice我们不允许办公室抽烟
Wedonotpermithim______________intheoffice.我们不许他在办公室抽烟。
=Heisnot______________＿＿＿intheoffice.
3.spot
1)Ieasily________himinthecrowdbecausehewasverytall.(v.发现，认出)
2)He_______thedesk_______ink.他用墨水弄脏了课桌。
3)Mycatiswhite________brown________.我的猫是白底棕色斑点的
4)Whenthefirebrokeout,nobodywas_______________________(在现场)
4.Seekv.(过去式________,过去分词________)
1)I____________________hermindbutfailed.我试图改变她的心意但没有成功
2)Hewentto______________________________.他去请教他的律师。
5.重点句型：
1）___fact,Ilanded____Britain___accident.事实上，我在英国上岸是偶然的。
2）Ididn’tknow_____Icouldsurvive_____morning.我不知道我是否能活到天明。
3）And_______theship_____broughtyoutoEngland.就是这条船带你到英国的。
4）Thefact_____Iearnedmypassage______working______anunpaidhand,________accounts_________myappearance.
事实上我靠做义工来顶替船费，这就是我为什么衣冠不整地原因了。