Computers(Period 4 Listening)教案。
经验告诉我们,成功是留给有准备的人。教师要准备好教案,这是教师的任务之一。教案可以让学生能够在课堂积极的参与互动,帮助教师缓解教学的压力,提高教学质量。你知道如何去写好一份优秀的教案呢?小编特地为大家精心收集和整理了“Computers(Period 4 Listening)教案”,仅供参考,希望能为您提供参考!
Period4Listening
TheGeneralIdeaofThisPeriod:ThisperiodincludeslisteningandwritingonPage21;listeningonPage55andlisteningtaskonPage58.Apparently,thepurposeofthisperiodistotrainthestudents’listening—forinformation;forcomprehensionandforlanguage.Meanwhile,thestudentswillbetrainedtoexpresstheirownopinionsafterlistening.TeachingAims:1.Helpthestudentstolearnabouttheknowledgeofinformationtechnology.2.Enablethestudentstogetthemainideasofthelisteningmaterials.TeachingImportantandDifficultPoints:1.Howtogetthemainideaandinformationindetails.2.Expresstheirownopinionsafterlistening.TeachingMethods:1.Task-basedlearning.2.Cooperativelearning.TeachingAids:1.Ataperecorder.2.Amultimedia.TeachingProcedures:Step1RevisionCheckthestudents’interviews.Getthestudentstoworktogetherwiththeirpartnerstointervieweachother.Step2Listeningandwriting(Page21)Task1ListentoaconversationT:Class,asweallknow,the21stcenturyisthecenturyofinformationandtechnology.NextwewilllistentoaconversationaboutdifferentkindsofinformationtechnologyorIT.Andasweknow,eachkindofinformationtechnologyhasitsownadvantagesanddisadvantages.Sofromthisconversationwewilllistenfortheadvantagesanddisadvantagesofeachone.Butbeforelisteninglet’sfirstlookatthepicturesonPage21andtheformonPage22tomakesurewhatyouaregoingtodowhilelistening.OK,let’sbegin.Thestudentslistentotheconversationforthefirsttime.Task2DiscussionandfillingT:YoucanseethereareaTV,aCD-ROM,acomputer,aradio,aDVDandnewspaperhere.Nowtrytofinishfillingintheformwiththeinformationyouhavejustgotfromtheconversation.Suggestedanswers:TypeofIT
Advantages
Disadvantages
TV
Youcanbothlistenandwatch
Youcan’twritetofriends
Web
Youcanfindinformation
It’sveryexpensive
Radio
YoucanlistentoEnglish
Youcannotwatch
Book
Youcangetinformation
Sometimesitisout-of-date
T:Now,let’sdiscusstheadvantagesanddisadvantagesofeachtypeofITinsmallgroupsandthendecidewhichtypeofITisbestforyoutouse,accordingtotheformaboveandexplainthereasons.Whilediscussing,remembertousethefollowingexpressions:Ithinkthat...Inmyopinion...Ibelievethat...Iagreebecause...Idisagreebecause...I’vedecidedthat...Step3Listening(Page55)T:NowcometothelisteningonPage55.Beforeyoulistening,pleasereadtherequirementsofEx.1.Afterthat,youwillfindthethreerobotsfromthepicturesaboveonPage55andnumberthem.Thepossiblenumber:Picture1—No.3Picture3—No.2Picture4—No.1T:NowpleaselookattheseboxesonPage55beforeyoulistentothetapeagain,andtrytofindoutthelisteningpoints.Paymoreattentiontothesepointsandyoumaymakesomenoteswhilelistening.Threeminuteslater.T:Nowtrytofillintheboxeswiththeinformationfromthelisteningmaterial,andthencheckyouranswerswithyourpartners.Suggestedanswers:Personalrobot
Information
Size
!--?xml:namespaceprefix=st1ns="urn:schemas-microsoft-com:office:smarttags"/--35cm
Whatitlookslike
Robotwithfivearms
Whatitcando
Allhomework
Price
50yuanaday
Bird-likeandroid
Information
Size
10cm
Whatitlookslike
Bird-likeandroid
Whatitcando
Singsbeautifully
Price
600yuan
Lonelyandroid
Information
Size
2m
Whatitlookslike
Large,energeticrobot
Whatitcando
Climbsmountains;playsguitar;singskaraoke
Telephonenumber
Room-1234
Step4Listeningtask(Page58)T:NowpleaseturntoPage58,andfinishthelisteningtask.Asweknow,computersareusedwidelyandputintoandroids.Pleaselookatthepicturesabove.Therearetwoandroidsinit.Oneworksasamaid.Theotherworksinacarfactory.Theyarefriendsandtheyweremadeatthesametime.Nowtheyaretalkingabouttheirlivesandwhatitfeelsliketobeandroid.OK,pleaselistencarefullytotheirproblemsandfillintheform.I’llplaythetapetwice.Afterlistening.T:Trytofillintheformsasquicklyasyoucan,andthenwewillchecktheanswersinclass.SuggestedanswersSallyandBrenda’sproblems
Abouttheirjobs
Theirprogrammerdecidedthem
Aboutchangingtheirjobs
Theyarenotabletochangejobs
Aboutwhodecidestheirfuture
Theirprogrammerdoes
Abouthowtheyaredifferentfrompeople
Theycannotsmell,laugh,taste,oreatfood
Abouthowtheyarethesameaspeople
Theyenjoyfootball
T:Fromwhatwehavejustlistened,weknowthatSallyandBrendahavesometroublesintheirlives.Theyaretreatedbadly.Nowyouaregoingtomakealistoftherightsthatandroidsshouldhavesothattheywillbetreatedbetter.Youcanworkwithyourpartnersandhavediscussion.Suggestedanswers:1.Theyshouldbeabletochoosetheworktheydo.2.Theyshouldhavetheirowntime.3.Theyshouldbeabletochangetheirjobs.4.Theyshouldbeabletodecidetheirownfuture.5.Theyshouldbeabletotaste,smell,feel,etc.Step5AssignmentT:Class,Ireallyappreciateyourgoodperformanceinthislisteningclass.Icanseethatyourlisteninghasgreatlyimprovedsinceyoucametotheseniorschool.Keeponyourgoodwork!OK,wehavenotimeleft.I’dliketoassignyousomehomeworktodo.1.GooverthelisteningandwritingonPage21andgetreadyforthewriting.Step6TheDesignoftheWritingontheBlackboardUnit3Computers
Period4
TypeofIT
Advantages
Disadvantages
TV
Youcanbothlistenandwatch.
Youcan’twritetofriends.
Web
Youcanfindinformation.
It’sveryexpensive.
Radio
YoucanlistentoEnglish.
Youcannotwatch.
Book
Youcangetinformation.
Sometimesitisout-of-date.
Personalrobot
Information
Size
35cm
Whatitlookslike
Robotwithfivearms
Whatitcando
Allhomework
Price
50yuanaday
Bird-likeandroid
Information
Size
10cm
Whatitlookslike
Bird-likeandroid
Whatitcando
Singsbeautifully
Price
600yuan
Lonelyandroid
Information
Size
2m
Whatitlookslike
Large,energeticrobot
Whatitcando
Climbsmountains;playsguitar;singskaraoke
Telephonenumber
Room-1234
Step7RecordafterTeaching相关阅读
Theme parks教案Period 4 Listening
Themeparks教案
Period4Listening
TheGeneralIdeaofThisPeriod
ThisperiodconsistsoflisteningintheUsingLanguagepart,listeningandlisteningtaskintheWorkbook.Itaimsattrainingthestudents’listeningskills—gettinggeneralideaanddetailedinformationandgraspingthekeyinformationtohelpthestudentsfinishtherelativeexercises.Alsointhisperiodthestudentscanmeetthethemeofthisunitagain.?
Theteachershouldmakesurethestudentsreadthequestionstofindouttherequirementsfirst.Thisistosharpentheirattentiontogetthegistofthetextandspecificinformationforthequestions.Whiledoingtherelatedexercises,thestudentscanworktogetherwiththeirpartnersontheiranswers.?
TeachingImportantcooperativelearning.?
TeachingAids?
Ataperecorder,amulti-mediacomputerandablackboard.?
ThreeDimensionalTeachingAims?
KnowledgeandSkills?
Helpthestudentsimprovetheskillstolistenforgeneralideaanddetailedinformation.?
Helpthestudentsimprovetheirlisteningapproaches.?
ProcessandStrategies?
Individualworktofinisheachtask.?
Theteachermayplaythetapeafewmoretimestomakethestudentshearclearly.?
FeelingsandValue?
Notonlyarethestudents’listeningskillstrained,butalsotheywilllearnalotaboutthemeparksallovertheworld.?
TeachingProcedures
Step1Listening(Page37and38)?
T:Hello,everybody!Lastclasswelearnedalotabouttwothemeparksbyreading.Andinthisclasswearegoingtolearnaboutanotherthemeparkbylistening.PleaseopenyourbooksandturntoPage37.Beforeyoulistentothetape,youwillbegiventwominutestoreadtherequirementsandthequestions.AndI’dlikeyoutopredictwhatthislisteningpassagetalksaboutfromthequestions.?
(Twominuteslater.)?
T:OK,whowouldliketotellwhatthislisteningpassagetalksabout?Volunteers!?
S:Iguessthislisteningpassageisaboutaculturethemepark,inwhichdifferentculturalgroupsarementioned.?
T:Yeah.Thelisteningtextintroducestoawell-knowntouristattractioninChina-FolkCultureVillagesinShenzhen,whichshowsthehomes,templesanddressoftwenty-oneethnicgroupsinChina.FromthelisteningtextwewilllearnhowsomeoftheminoritynationalgroupsofChinaliveandwhattheircustomsare.?
NowI’llplaythetapeforyoutolistentoforthefirsttime.Afterlistening,youwillmatcheachnationalgrouptoanexampleofitscustoms.Payattentiontotheimportantinformationwhilelisteningandyou’dbettertakesomenotesofit.?
(Studentslistentotherecordingforthefirsttime.)?
T:Haveyougottheanswers?Let’schecktheanswerstogether.?
Possibleanswers:?
T:Let’slistentothetapeagainandanswerthequestionsinPart2.Youmaylistentoittwice.?
(Studentslistentotherecordingforanothertwotimes.)?
T:Pleasechecktheanswerswithyourpartnersfirst,thenwe’llchecktheanswersinclass.?
Suggestedanswers:?
1.Twenty-oneculturalgroupsarerepresentedinthethemepark.?
2.Therearetwenty-fourvillagesinthethemepark.?
3.Rickyissohungrybecausethegroupgotuptooearlyforhimtohavebreakfast.?
4.Naxi,Bai,MiaoandDaigroupsarementionedinthepassage.?
5.TheguidesaystheymustseetheUyghurdancingandheartheDaisinging.?
6.LucywantstobuyMiaoclothforhermother.?
7.Thethemeparkcontainsplants,temples,bridgesandhousesotherthanpeople.?
8.Rickywillwanttoeatagain.?
T:Haveyougotthemright??
Ss:Almostallright.?
T:Goodjob!?
Step2Listening(Page69)?
T:Let’scometothelisteningonPage69.HerewearegoingtolistentoDavidEvensandJiYangwhoarevisitingtheSeaWorldontheGoldCoastinNortheastAustralia.HaveyoueverbeentoSeaWorld??
Ss:Yes.?
T:WhatcanyoudoinSeaWorld??
Ss:Wecanfeeddolphins.?
Wecanplaywiththepolarbears.?
Wecanwatchseaanimalsdoperformances.?
Wecangodivingtoseefish.?
Wecanlearnaboutdifferentkindsoffishandseaweed.?
Wecangosurfingonthesea.?
T:Good.Let’slistentotherecordingabouttheSeaWorldinAustralia.Afterlistening,ticktheitemsinthelistofwhatpeoplecandointhispark.Areyouready?Let’sgo.?
(Thestudentslistentotherecordingforthefirsttimeandfinishtheexercise.)?
T:Haveyougottheanswers?Whatitemsinthelistcanpeopledointhispark??
S:Iheardfromthetapethatpeoplecanfeedthedolphins,goonarollercoaster,godivingtoseefishandlearnaboutarescueprogramme.?
T:Areyouranswersthesameashers??
Ss:Yes.?
T:Let’slistentothetapeagainandtrytoanswerthequestionsinPart2.Pleasereadthequestionsfirst.?
T:OK,let’skeepthethreequestionsinmindandtrytofindtheanswerswhilelistening.Areyouready?Let’sgo!?
(Theteacherplaysthetapeforthestudentstolistentoagain.)?
T:Pleasechecktheanswerswithyourpartnersfirst.Nowlet’schecktheanswersinclass.Whoaregoingtoanswerthefirstquestion??
S:I’lldoit.ThethingsJiYangwouldliketodoare:Hewantstofeedthedolphins,watchthemdotrick,watchthewaterskiing,seethepolarbear,andgodiving.?
S:I’mgoingtoanswerthesecondquestion.Itisexpensivebecausethepolarbearsneediceandcoldwater,buttheSeaWorldisinahotclimate.?
S:Letmeanswerthelastquestion.Itisnotanamusementparkonly.Itofferseducationalprogrammesaboutmethodsofrescuingseaanimals,birdsandfish.?
T:Quitegood!Youarereallyimprovinginlistening.
Step3ListeningTask(Page73)?
T:Let’sturntoPage73andgoontodotheListeningTask.Forthistask,wearegoingtolearnhowtobuildadugoutboatandhowtomakeahouseofpalmleaves.Areyouinterestedinmakingthingsbyyourselves??
Ss:Yes.?
T:Great!Youwillbeabletodoitafterdoingthelistening.?
T:Let’sfindouthowtobuildadugoutboatfirst.Whilelistening,youneedtopayattentiontothematerialsyouneed,thesteps,themethodofmakingapersonsitinit,andthemethodofmakingtheboateasilygothroughthesea.Areyouclearaboutwhattodonow?Wewilllistentoitthreetimes.Whilelisteningforthefirsttime,pleasetrytogetthegistoftheinformation;thesecondtime,youcantrytofillintheinformationonthechart,andthirdtime,youmaycheckyouranswers.?
(ThestudentslistentotherecordingforthreetimesandfillinthetableinPart1.)?
T:Nowlet’scheckyouranswerstogether.?
Suggestedanswers:?
Howtobuildadugoutboat
Materialsyouneed:Averytallstraighttree
Firststep:Cutdownthetreeandremovethebranches.
Secondstep:Cutthetreeopenandgettwolongpiecesofwood;useonetomaketheboat.
Methodofmakingapersonsitin:Removetheinsideforapersontositin.
Methodofmakingtheboateasilygothroughthesea:Takethebarkofftheoutsideoftheboatandputoilonit.
T:Let’scometothebuildingofpalmleaves.Whilelistening,weneedtopayattentiontothemethodofjoiningthepalmleaves,thenumberofareaforsides,howtojointhesidesofthehousetogether,thenumberofareasfortheroof,andhowtojointherooftowalls.Withthefivequestionsinmind,let’sbeginlistening.PleasedoaswedidinPart1whilelistening.?
(StudentslistentotherecordingfortwotimesandcompletethechartinPart2.)?
T:Haveyougottheinformationtocompletethesecondcolumnofthechart?Let’schecktheanswerstogether.?
(Teachercheckstheanswerswithwholeclass.)?
SuggestedanswerstoExercise2:?
Howtomakeahouseofpalmleaves
MethodofjoiningleavesWeavethemtogether.
NumberofareasforsidesFour.
HowtojoinsidesJoinonesidetoanothersidebyweavingleavesatrightanglestogether.
NumberofareaforroofTwo.
HowtojoinroofstowallsPutthetwosidesoftheroofontopofthefoursides.
Step4Conclusionandhomework?
T:We’vedonemuchlisteninginthisperiod.Thoughwefeelalittletired,wehavemademuchprogressinlistening.
Asforyourhomework,youcanpreviewthewritingandthespeaking.Nowit’stimeforabreak.Bye,boysandgirls.?
TheDesignoftheWritingontheBlackboard
Unit5Themeparks
Period4Listening
1.China-FolkCultureVillages?
2.TheSeaWorld?
3.Howtobuildadugoutboat?
4.Howtomakeahouseofpalmleaves?
RecordafterTeaching
ActivitiesandResearch
ThestudentsmaycollectsomeinformationaboutthemeparksontheInternetafterclassandtrytodescribethemtotheirclassmates.Thisactivityaimsatentertainingthestudentsaswellastrainingtheirlisteningability.?
ReferenceforTeaching
LearningTips?
英语听力技巧?
1.学会预测?
预测是在做听力理解之前根据各种暗示,如所给答案选项,段落或对话标题等已有知识,对即将听到的段落或对话内容进行预测。?
(1)从答案选项中预测?
Q:WhatdoesTomdo??
A.He’satruckdriver.B.He’sashipcaptain.C.He’sapilot.?
录音原文:?
W:TomflewtoAnchoragelastnight,thentooksomepassengersfromtheretoDollas.?
M:Yeah,buthecouldn’tlandbecausetheairportinDollaswassnowedin.?
从选项看,问题应是关于职业方面的,再从flew,passengers,airport这些信息词中可知道Tom的职业。?
(2)从说话人口气预测?
在A,B两人的对话中,如果B是附和或赞成,往往说“Yes”,“Iagree”,“Sure”,“Ithinkso”等。但如A用否定句,B表同意时则用“No”,“Neither/Nor...”等。例如:?
A:Harveydoesn’tseemtofitintothisclass.?
B:No,heisreallyafishoutofwater.
2.做简要笔记?
听录音时快速、准确、简要地记下有关信息(包括数字,人名,地名,关键词),前提是不要影响跟听速度,采用自己习惯的符号。?
例:Howmuchwillthemanpayforthetickets??
A.B.C.?
录音原文:?
W:Ticketsforthemovieareforadults,halfpriceforchildren.?
M:Allright,I’dlikethreeticketsforadultsandtwoticketsforchildren,please.?
笔记可简化为:A(代表adult),C(代表child),3A+2C或6A(3)+halfChildren(2)
3.听清数据,简要记下,加以运算?
在获取时间信息时,不要误把会话中提到的时间简单确定为问题的答案。高考听力考查时间时往往要进行简单的时间换算。?
AtwhattimedoesthetraintoLeedsleave??
A.3:00B.3:15C.5:00?
录音原文:?
W:Excuseme,couldyoutellmewhenthenexttraintoManchesteris??
M:Sure.Well,it’s3now.ThenexttraintoManchesterleavesin2hours,butyoucantakethetraintoLeedswhichleavesin15minutes,andthengetoffatManchesterontheway.?
对话中提到了三个时间It’s3now,in2hours,in15minutes.现在是3点,开往Manchester的火车要两小时后才开,即ThetraintoManchesterleavesin2hours。若简单机械地把3点和2点相加,会得出火车5点才开的错误选项C。?
数字类问题分辨别类和计算类两种:?
(1)要注意区分-teen和-ty及four和five的发音;辨别多位数,如电话号码,门牌等?
(2)计算时间,钱款,距离,年龄,人或物的数量等;听出数字间的关系,更要听清问题,因为对运算方法的要求通常寓于问题中;注意more,less,asmuch(many)as,another,double,acoupleof,to,past,quarter;记住时间是60进制?
如出现几个数字,应注意鉴别问的是那一个。?
例:Atwhattimedoestheofficeopen??
A.At8:15.B.At8:30.C.At7:45?
从常识判断,办公时间往往以整点开始,而不会在几点几分。?
听力原文:?
M:Iwonderwhytheofficeisstillnotopen.?
W:Butit’snotyeteight.Infact,it’sonlyaquartertoeight.
4.抓住关键,对症下药?
听力考试常出现以Where提问的问句,考生要通过对话的具体情节和背景判断对话发生的地点。一般来说,特定场景的用语和关键词是基本固定的,考生要对此多了解,熟悉明白。在遇到Wheredoestheconversationtakeplace?/Wheredoessb.work?/What’shisjob?之类的问题时,就会派上用场。如:?
restaurant:menu,bill,order,tip,hamburger,beer,soup?
hotel:luggage,singleroom,doubleroom,roomnumber,checkin(out)?
hospital:takemedicine,temperature,pill,headache,fever,examine?
postoffice:mail,deliver,stamp,envelope,parcel?
airport:flight,takeoff,land,luggage?
railwaystation:roundtrip,singletrip,sleepingcar?
store:onsale,size,wear,colour,style,price,change,bargain,fit?
school:professor,exam,course,term,dininghall,playground?
library:librarian,renew,date,shelf,magazine,seat?
对于前五道简短对话,要根据问题的类型,从第二个讲话者的答语中来捕捉关键词。?
如:What’sthemangoingtodo??
A.Runtotheairport.B.Waitforanotherbus.C.Hurrytogetthenextbus.?
根据选项看,对话似乎与bus有关,主要信息捕捉范围是在“Hurry”或“Run”和“Wait”之间。听音范围明显缩小。?
录音原文:?
M:Excuseme,canyoutellmewhenthenextbusleavefortheairport??
W:Itleavesinthreeminutes.Ifyourun,youmightcatchit.?
关键词“run”和“catch”正好对上答案C的“Hurry”和“get”。
5.较长对话和短文的理解?
抓听首句和首段有助于整体理解文章?
结尾部分所给出的信息不一定是题目的正确答案,可能只是一个陷阱?
推理思路要正确?
语境中抓要点?
独白部分(即第十段材料)可分为四种类型:?
*人物与故事型:叙述人物的经历和成就,要抓住故事发展线索,所问问题多属事实细节题
*普通知识型:内容涉及面较广,问题以事实细节题居多?
*社会科学型:涉及到文化教育,社会治安,代沟问题,就业问题,妇女问题,人口问题,环境保护,国家发展等。问题常涉及独白的主题或题目,故需作推理判断。?
*科普知识型:主要涉及自然科学,如生物,物理,海洋,计算机,医学,气象,科学发明等。如遇技术词汇和术语,可利用语境线索猜词义。
6.果断选题,学会放弃?
相信第一感觉,当机立断,决不能反反复复,甚至影响后面的答题?
切记不可因某个小题未听懂而患得患失,不可因一题失多题,造成一步跟不上,步步踏空的结果。
Unit 3 Computers教案(Listening, Speaking and Writing)
Unit3Computers
Listening,SpeakingandWritingGOALS:1.Topractiselisteningcomprehension.2.Topractisemakingdecisionsandreasoning
TEACHINGPROCEDURES:Step1.revision1.checkthehomeworkexercises.1).Ithasbeenreportedthatchildrenwillbeofferedfreeeducation.Ithasbeenreportedthatfreeeducationwillbeofferedtochildren.2).Ithasbeensaidthatwewillbeofferedthelatestcomputersciencecoursebook.Ithasbeenplannedthatthelatestcomputersciencecoursebookwillbeofferedtous.3).IhavebeentoldbyPeterthatIwillbelenthisnotebookcomputerforaweek.IhavebeentoldbyPeterthathisnotebookcomputerwillbelenttomeforaweek.2.Question:Whatcancomputersbeusedas?Step2.Lead-inAsweknow,scienceandtechnologyisdevelopingveryfastandcomputershavebecomesmallerandsmaller.Theyhavebeenusedinmanyfields.So,the21stcenturyisthecenturyofinformationtechnologyWhatdoesitmean?Doesinformationtechnology/ITonlymeanthingslikecomputers?Ofcausenot.Actually,itmeansmorethancomputers.ComputersarejustonekindofIT.WhatelsedoyouknowispartofIT?(TV,radio,CD-ROM,DVD,books……)Step3.Listening(SB)1.Pre-listening:WhatarethechangesbroughtbydifferentformsofIT?Whataretheadvantagesanddisadvantagesofthem?2.While-listening:Gothroughthechartandmakesurethestudentslookatthechartbeforetheylistentothetape.(Thisistosharpentheirattentionandlistenfortheanswers.Thiswillalsohelpthemgetthegistofthetext.)ThenListentothetapeandfinishfillinginthechart.(Ifnecessary,playthetapeforseveraltimes.)Say:Afterlisteningtotheirtalk,weknowallkindsofIThavebothdisadvantagesandadvantages.Let’schecktheanswerstogether.TypeofITAdvantagesDisadvantagesTVYoucanbothlistenandwatch.Youcannotwritetofriends.WebYoucanfindinformation.Itisveryexpensive.RadioYoucanlistentoEnglish.Youcannotwatchafilm.BookYoucangetinformation.Sometimesitisoutofdate.
3.Post-listening:1)(pairwork):decidewhichtypeofITisbestforyoutouserightnow.Makeyourchoiceandgiveyourreasonsbyusingthefollowingexpressions.Ithinkthat….Inmyopinion,….Ibelievethat….Iagreebecause….Idisagreebecause….I’vedecidedthat….2)(groupwork):Discussion:Computersareusefulandhavebroughtuslotsofgoodthings,buttheyalsocausebadeffects.Whatattitudeshouldwehavetowardsthecomputer?(Makegooduseofitbutnevergettrappedbyit.)Step4.Speaking1.Pre-speakingSay:Fromwhatwehavelearn,weshouldadmitthatcomputersandthewebhaveagreatinfluenceontheschooleducationaswellaspeople’slife.Ithascomeintopeople’severydaylifeandmanyfamiliesholdcomputersintheirhomes.Nowthereisataskforyou.2.While-speaking1)Situation:Youhavebeenaskedbyyourparentstohelpchoosecomputersforyourhome.Youandyourfriendhavelookedatseveralcomputers.Talkaboutthespecialthingseachcomputercando.Makeadecisionaboutwhichkindofcomputertobuyandexplainwhy.Informationinput:Showstudentssomepicturesofdifferentcomputers(desktopcomputer&laptopcomputer&…)Languageinput:Usefulexpressions(Repeatittostrengthenstudents’abilityofuseit.)SupportinganopinionChallenginganopinionIthinkthat…,because…Perhaps,butwhatif/about…?First,…Haveyouthoughtabout…?Onereasonisthat…Whatmakesyouthinkthat…?Ithinkitisbetterbecause…Idon’tlikeitbecause….(Pairwork)Usetheexpressionstosupportyouropinionorchallengingother’sopinions.2)Oralreport:(individualwork)Doanoralreporttoyourfatherandstartyourreportlikethis:Ilookedatmanydifferentcomputers.TheoneIhavechosenisthePEPpersonalcomputer.Oneofthemainreasonsisthatitissuitableforhomes.Ifoundthat…3.Post-speakingConclusion—Whatusefulexpressiondoweusetomakeadecisionandreason?(Inthisway,theycanreviewandusethewordsandphrasesagain.)Step6Pre-writingSay:Imaginewhatproblemsanddelightsthisandroidmighthavetodealwithwhileitisservingyou.Tryyourselfinsomeoneelse’sshoesisanimportantwayofunderstandinghowotherpeoplefeel.Thendiscuss:Youareanandroid.Youworkforafamilywithonechildwhoisveryspoiled.Theparentswantyoutodoeverythingforthem.Theparentsarenice,buttheyoftenaskyoutowatchovertheirchild.Howdoyoufeel?Whatwouldyoudoifthechildaskedyoutodohis/herhomeworkforhim/her?Wouldyouevertellthechild“no”?Step7WritingSay:Writeapassageabouttheresultofyourdiscussion!Itshouldcontain:Whatdoyouhavetodo?Whatisthechildlike?Whatistheparents’requirementofthechild?Whatdotheparentswantyoutodo?Whatdoesthechildwantyoutodo?Thenwhatwillyoudo?Howdoyoufeel?Samplewriting:Helloeverybody,mynameisLiuYan.Iama321modelandroid.IworkfortheLifamily.MrandMrsLiworkveryhardtoo.MrLiisanarchitectanddesignsgreattallapartmentblocks.MrsLiisadoctorandhastolookaftermanypatients.IrememberalltheplansforMrLisprojectsandcantellMrsLiwhichdrugsarethebesttogiveanyparticularpatient.AndIalsolookaftertheirlibrary.Istoreallthebooksthattheyborrowfromtheirschoolorfriendsinmybrain.Ofcoursemybrainisaslargeasamountain,soworklikethatisnotroubletome.Ireallyeatbooksjustlikepeopleeatfood.TheLishaveachildwhoisveryspoiled.HeneedsmetorememberallhisschooltextbookssothatIcandohishomeworkforhim.Hejustgivesmetheinformationonthesubject,whathastobedoneandthepagenumbersandIgetonwithitwhileheenjoyshimselfwithhisfriends.SometimesIdontthinkitisrighttodohishomeworkforhim—itssomewhatcheating.However,hisparentsareveryconcernedatthepressureofworkinschoolthesedays.Thechildhastoomuchhomeworktodo.Theylikehimtogotothekeyschoolbuttheyalsowanthimtobeabletohavehobbies,learntoswimandkeepfit!Poorchild!Sotheyconsidermethemostimportantpersoninthefamilyafterthemselves.Iamalwaysintroducedtotheirfriendsandplaywithvisitingchildren.Iamtheperfectfamilyacademicaidand,althoughIwasnotcheaptobuy,MrLisaysIwaswortheveryyuan!Step8AssessmentGetthestudentstoassesstheirwritingabilityaccordingtothefollowingthequestions:1.Isyourcompositionwelldeveloped?2.Areyourideaswellorganizedtothepoint?3.Doyouhaveagoodchoiceofwordsandidiomsinyourwriting?4.Doyougetagoodmasteryofcomplexstructuresoflanguage?5.Whatkindofmistakeshaveyoumadeinyourwriting?Step9:HomeworkWriteaboutyourdiscussion.Youmaybeginlikethis:Hello,everyone.Mynameis___.I’m321modelandroid.IworkfortheLifamily….Great scientists Period 3 Listening and Speaking教案
Period3ListeningandSpeaking
TheGeneralIdeaofThisPeriodThisisthethirdperiodofthisunit.Atthebeginningofthisperiod,theteachershould(can)designsomeexercisestoreviewwhatthestudentslearnedinthelastperiod,thatistosay,gooverwhatthestudentslearnedaboutthatJohnSnowdefeats“KingCholera”.Theteachercanbeginwithaskingsomequestionsorhavingacompetitiontomakesomesentenceswith“JohnSnow”accordingtothepassage.Duringthisperiod,listeningandspeakingwillbemainlydealtwith.Atthebeginning,teachersfocusontrainingtheSs’listening.ThislisteningcontentisabouttheimportanceofQianXuesenforspacetravelin!--?xml:namespaceprefix=st1ns="urn:schemas-microsoft-com:office:smarttags"/--China,thecontributionsmadebyabotanistnamedCarlLinnaeusandtheresearchintothelifeandworkofamathematiciancalledLeonhardEuler.?WhentrainingtheSs’listeningability,teachersshouldstartwithpre-listening,thatis,lead-in.Ifitisnecessary,teachershadbetterintroducesomebackgroundknowledgeaboutthelisteningmaterial.Later,lettheSslistentoit.Atthesametime,teachersshoulddesignsomesimplequestions.Afterthat,theSshaveknownaboutthelisteningmaterial,andthenteacherscanaskthemtolistentoitagaintobereadyformoredifficultquestions.Ifnecessary,theSscanbegivenanothertimetolisten.Whilepracticing,teachershadbetterofferstudentssomeadviceonhowtodoitwell.Especially,trainthestudentstopredictwhattobetalkedaboutaccordingtothehintsandlimitedinformationandletthemformthegoodlisteninghabitoflisteningwiththepurposeoffindingusefulinformationandtosummarize.Certainly,supposetherearemanynewwordsandexpressions,teachersshouldhelpthemtodealwiththematthefirstplace.Allthelisteningpracticeshouldfocusondevelopingthestudents’listeningskill.Afterpracticinglistening,theSsareexpectedtolearnsomeexpressionsabouttalkingaboutscientificjobaswellasscientists’achievementsandrecountstories.Besidesthose,thestudentsareexpectedtolearntheskillofdescribingaperson.Duringthecourse,teachersshouldrankclassactivitiesfromtheeasytothedifficult.First,askthemtolearntheexpressions.Then,askthemtoimitateittohaveadialogue.Finally,thestudentsareexpectedtocreateadialogueordiscussthegiventopic.Inordertodrawstudents’attention,theteacherhadbetterprepareforsomeinterestingsituations.Thisperiodcentersonemphasisonspeakingandlistening.Theteachershouldtryhisorherbesttoencouragethestudentstosaysomething.Don’talwayscorrectthemistakesthatthestudentswouldmakewhilespeaking.Otherwise,thestudentswouldfeelreluctanttospeakouttheiropinions.TeachingImportantPointsTrainthestudents’speakingabilitybydescribing,talkinganddiscussing.?Helpthestudentsimprovetheirlisteningability.?TeachingDifficultiesTrainthestudents’listeningability.Especiallylistenandunderstandwhatthespeakers?meanbeyondwords.?TeachingAids?ataperecorder,aprojectorandtheblackboard?
ThreeDimensionalTeachingAimsKnowledgeaims:LettheSsknowaboutsomescientistsandtheirlifeandcontributions.?GettheSstolearnhowtotalkaboutscientificworkandhowtodescribeaperson.?AbilityAims:?Trainthestudents’speakingabilitybydescribing,talkinganddiscussing.?Trainthestudents’listeningability.?EmotionalAims:?Trainthestudents’abilitytocooperatewithothers.?Encouragethestudentstolearnfromscientiststoshowinterestinscientificexplorationandresearch.?
TeachingProcedureStep1GreetingT:Hello,boysandgirls.?Ss:Hello,MissWang.?Step2Revision?T:Todaywewillbeginourlessonwithacompetitionbetweengroups.Inthelastperiod,welearntaboutJohnSnowwhodefeats“KingCholera”.Now,pleasesaysomethingthatyouknowaboutit.Ifyouofferacompletesentence,youwillbegiventenmarks.Yourgroupwillbegiventwentymarkswhenyourexpressionisespeciallybeautiful.?S:JohnSnowwasawell-knowndoctorinLondon,whoattendedQueenVictoriatoeasethebirthofherbabies.?S:Hebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera,whichwasthedeadlydiseaseofhisday.?S:JohnSnowgotinterestedintwotheoriesexplaininghowcholerakilledpeople.?S:Hebelievedinthesecondtheorythatispeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.Fromthestomachthediseaseattackedthebodyquicklyandsoontheaffectedpersonwasdead.Ss:...?(Theteachershouldencouragemorestudentstojoininthecompetition.Attheendofthecompetition,theteachershouldannouncetheresultofthiscompetition.Praisethewinnerandencouragethelosers.)?T:WhatcanwelearnfromJohnShow??S:Weshouldbaseourtheoriesonpractice.?S:Weareinspiredtohaveaspiritofscientificexploration.?S:Wedosomeresearchwiththepurposeofservingthepeopleandsociety.?Ss:...?T:Yes,wecanlearnalotfromthescientist.Infact,thereareagreatnumberofpeopleworkingonscienceworthyofbeinglearnedbothathomeandabroad.Canyounamesomescientistsandintroducetheirmaincontributions??S:Archimedes,whodiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat.S:Darwinwroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged.?S:MadamCuriediscoveredradium.?S:StephenHawkingputforwardatheoryaboutblackholes.?S:Zhanghenginventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened.Ss:...T:Youdidagoodjobandlistedmanyscientistsaswellastheircontributions.Today,wearegoingtolearnaboutmorescientists.?Step3Listening(onPages5-6)
!--?xml:namespaceprefix=vns="urn:schemas-microsoft-com:vml"/--Task1Pre-listening?T:Firstlet’senjoythepicture.Whatcanyousee??S:PresidentJiangZeminandanoldman.?T:PresidentJiangZeminvisitedQianXuesen.?T:WhathaveyoualreadyknownaboutQianXuesen???S:HeisaChinesescientist,whoseresearchmainlycentersonPhysics.?S:Heishonoredas“ChineseRocketFather”.?S:HehasmadegreatcontributionstospacetravelinChina.?T:Good.Youseemtohaveagoodknowledgeofhim.QianXuesenisafamousscientist?whohascontributedmuchtothecountry’scauseofscienceandtechnology?.?Task2FirstListening?T:Wearetolistentothematerial,whichisaboutQianXuesen.YuPingistellingherfriendSteveSmithaboutQianXuesen’slife.IfyouwereYuPing,whattopicswouldyouliketocoverwhenintroducinghim??S:Thedatewhenhewasbornandhedied;theplacewherehewasborn,lived,studiedanddied;hisfamily;hisexperience;hisachievements;hiscontributions?T:Excellent.Whenwetalkaboutandintroduceascientist,weusuallydescribetheseaspects.Now,listencarefullyandtickoutwhichtopicsarementionedinthetape.?(Afterlistening,letthemchecktheanswers.)?Task3SecondListeningT:Thistime.You’llwritedowntheanswerstothefivequestions.Boysandgirls,howcanwewritetheanswersfastandcorrectly??S:Weshouldgothroughthequestionsfirstandkeeptheminmind.Whenwearelistening,wejustneedtopaymuchattentiontothesentencesrelatedtotheanswers.?S:Weneedn’twritedowneachwordoftheanswers.Wejustwritedownsomekeywords.Laterwecanwritedownthecompleteanswerswiththehelpofthesekeywords.?T:Youareclever.Nowpleasegetready.First,lookthroughtheintroductiontothelistening?material.Then,scanthequestions.(Twominuteslater,theteacherplaysthetape.ThengiveSstimetoorganizetheirsentences.)T:Let’schecktheanswersonebyone.?(Ifthestudentsmakesomecommonmistakesortheyseemtohavedifficultyinfindingoutanswers,teacherscangivethemsomehintsandletthemlistentoitagain.Afterthat,checktheanswers.Ifthestudentsfeelitdifficulttomakesenseaboutthekeywordsandunderstandthespeakers’intentionandattitude,theteachershouldgivethemsomehelp.)?Task4Post-listening?T:Afterlistening,wouldyoupleaseanswersomequestions??1Whatdidyouhearonthetape??2WhatcanyoulearnfromQianXuesen??(Atthisparttheteachermayhavethestudentspresentwhattheyhaveheardonthetapeandshowtheirownopinionaboutwhattheyhavelearnedfromhim.Ifpossible,theteachermayhavesomeofthestudentsdothepresentationworkinclass.Bydoingthis,thestudentscangetfullunderstandingofwhatthetapeistalkingabout.)?Step4Listening(Page41)?Task1Pre-listening?T:JustnowwelearnedaboutaChinesescientist,QianXuesen,whohasmadegreatcontributionsonspacetravelinChina.Wewillgettoknowanotherscientist,whosecontributionisonbotany.Canyouguesswhoheis??S:CarlLinnaeus,maybeDarwin.?T:Youareright.Bothscientistsdidstudybotanyanddevotedtheirtimetotheresearch.Asweknow,CarlLinnaeusdevelopedhissystemabouthowtoclassifyspecies.WhileDarwinwroteabookontheOriginalofSpecies,inwhichheexplainedhowanimalsandplantsdevelopedastheenvironmentchanged.ThefollowingisaboutCarlLinnaeus.T:Now,readtheinstructionsaboutthelisteningandchoosewhichofthefollowingstatementsmistcloselydescribeswhatthislisteningpassageisabout.Explainwhytheothersarewrong.?S:Ithinkthethirdoneisright.Thisisaboutamanwhofindsaflowerandwantstoknowifitisanewspeciesofflower.Becauseheisinterestedinbiologyandespeciallyinthestudyofplants.Whathewantstodoistostudywhetheritisanewspecies.Theothertwostatementscannotconveythestudy.Task2Listening?T:Whatyousaidisreasonable.Let’slistentogethertofindwhetheryouranswerisright.?(Afterlistening,letthemchecktheanswers.)?T:Listentothetapeagainandtrytocompletethefollowingpassage.?Tofindthenameofanunknownflower,firstyouhavetogotoseeaflower__________he/shewilllookinaspecial__________writtenbyCarlLinnaeus.Helivedin__________from__________to__________.Hewasveryimportantbecausehesolvedaseriousproblemfor__________.Hesawallplantsandanimalsproduce__________.Someanimalsproduce__________butotherslay__________whileplants__________.Heusedthesedifferentwaysofproducingyoungtoputplantsandanimalsinto__________.Forexample,thegroupcalledbirdslay__________toproduceyoungandtheyallhave__________.Linnaeusputtheplantsandanimalsintosmallergroupsorspecies.Hegaveeachonetwonames.Oneisforthelargegroup,forexample__________andoneisforthespecies,forexample__________.Soaparrotwouldbe__________.Hewasthefirstpersontosuccessfullyclassifyallplantsandanimals.Task3Post-listening?Letthestudentsfillintheblanketsandthencheck.Ifthestudentsfeelitdifficulttodoit,letthemlistenitathirdtime.Aftercheckingtheanswers,askthestudentstoreadittogether.?Step5Listening(Page44)T:Lookatthescreenandlet’sreadthefollowingnewwordsfirstly.(Thesewordsarepresentedonthescreen:analyse,pure,foundation,symbol,sin,cosin,geometry,calculus,mechanics,practical,topology)?T:Canyouguesswhichfieldthenextscientistisinaccordingtothenewwords??S:Thenextmustbeamathematician.?T:Right.ThismathematicianisLeonhardEuler.JohnSmithisdiscussingwithZhaoYanghisresearchintothelifeandworkofamathematiciancalledLeonhardEuler.ListentothetapeandfillinthechartontheimportanceofEuler’swork.?Euler’sachievementsExamplesNewsymbolsandtermsOldareasofmathematicsNewareaofmathematicsImportance(Afterlistening,asksomestudentstofillinit.Ifmanystudentsfeelitdifficult,letthemlistentoitagain.Whiledoingit,theteachercanalsoasktwostudentstocometowritetheanswersontheblackboard.Theteacherhadbettergivethempraiseiftheydoitwell.)?Step6SpeakingTask1Lead-inT:Boysandgirls,fromthelisteningmaterial,weknowaboutsomescientists.Doyouhaveadreamtobeascientistinthefuture??Ss:Yes./No.?T:Supposeyouwouldliketoworkasascientist,andyouarediscussingwithyourpartneraboutyourfuturejob.Whatquestionswouldyouliketoconcern??S1:Whatjobdoyouwanttodo??S2:Howwillyougetthejob??S3:Whatpreparationswillyoumakeforthefuturejob??T:Right.Apartfromthose,wecanalsotalkaboutthefollowingquestions:?1Whateducationwillyouneed??2Whatpersonalitywillbeneeded??3Whatworkexperiencewouldbeuseful??4Howlongwillthetrainingtake??5Howwillyouprepareforthiscareer??T:Theseexpressionsmayhelpyou:?Ialwayswantedto...because...TheexperienceIwillneedis...?Imightfinditdifficultto...Ineedtopractise...?Mygreatestproblemwillbeto...?Iwillneedtobe/become...?patient,creative,hard-working,co-operative,confident,brave,positive,pleasant,polite,determined,energetic,strictwith...Task2Dialogue(pairwork)T:Nowitistimetodiscusswhatscientificjobeachofyouwouldliketochooseinthefuturewiththehelpofthementionedquestionsandexpressionsinpairs.Iwillgiveyoufiveminutestoprepareforit.AfterthatIwillletsomeofpairstocometoactitout.?Sample:A:Whatjobdoyouwanttodointhefuture??B:Ialwayswanttobeabotanist.?A:Ifyouwanttobeascientist,whateducationwillyouneed??B:Iwilltrymybesttogotoakeyuniversitytolearnandstudybotany.?A:Whatworkexperiencewouldbeuseful??B:TheexperienceIwillneedistostudywildplantsinthewildwhenIamatschool.Now,Ijointhesocialnaturalcluborganizedbyourschool.EverytimeImakeeveryefforttoovercomedifficultytostudyplantsinthewild.?A:Doyouknowwhatpersonalitywillbeneededifyouwanttobeascientistinthefuture?B:Iwillneedtobepatient,creative,hard-working,brave,energeticandco-operative.?A:Yes,Iagreewithyou.Besidesthosepersonalities,wealsoshouldbedetermined,confident?andpositive.?B:Iwillmakeeffortstoownsuchgoodquality.?A:Howwillyouprepareforthiscareer??B:IintendtogotocollegenextyearandthenIwillhaveachancetobeascientist.ButmygreatestproblemwillbewhetherIwillbeabletogotouniversityinthefuture.?A:Don’tworryaboutitandjustgetdowntopreparingforit.Goodchancesalwaysbelong?tothepersonswhohavealreadypreparedforthem.Iamsureyouwillsucceedifyoukeepworkinghard.Iamwaitingforyourgoodnews.?B:Thankyouforyourencouragement.Iwillmakefulluseoftimetostruggleforsuccess.Task3Free-talk?T:Letustalkfreely.Youareallowedtomoveabouttofindastudentyou’dliketotalkwith.Imagineyouaregoingtomeetaspecialistaboutanewly-foundflower.Yourpartnerwillbetheassistantfortheflowerspecialist.Youbothneedadescriptionoftheothersoyoucanrecognizeeachotherwhenyoumeet.Nowringtheassistanttosortoutthenecessaryinformation.?(Ofcourse,followingtheabove,thestudentsmaygatheraroundormovearoundtofindtheirownfavoritepartnerstotalkwith.Thisisahalf-controlledactivity.Teachersletthemexpresswhatevertheywanttoonconditionthattherearesomeexpressionsonthetheme.Givethemaboutfiveminutestoprepareforit.Later,asksomepairstoactitout.Asusual,theteacherwon’tforgettogivecommentsonwhatthestudentsdo,includingtheteacher’swordspraisingwhattheyaredoinginthefirstfewstages.Onlyinthiswayarethestudentsencouragedtotalkfreelyaboutwhattheywanttosayandwhytheythinkso.)?Step7SummaryandHomework?T:Inthisperiod,wemainlyfocusonthespeakingandlisteningabilities.Ifyoufeellistening?orspeakingpoor,youhadbetterpracticemoreafterclass.Practicemakesperfect.Today’shomeworkistodescribeascientisttoyourpartnerandletyourpartnerguesswhoshe/heis.Thenexchange.
TheDesignoftheWritingontheBlackboard
Unit1Greatscientists
Period3ListeningandSpeakingThequestionsmaybeusefultodiscussthescientificjob,Theexpressionsmayhelpyoutodiscussyourfuturescientificjob.Whatjobdoyouwanttodo??Whateducationwillyouneed??Whatpersonalitywillbeneeded??Whatworkexperiencewouldbeuseful??Howlongwillthetrainingtake??Howwillyouprepareforthiscareer?Ialwayswantedto...because...?TheexperienceIwillneedis...?Imightfinditdifficultto...?Ineedtopractise...?Mygreatestproblemwillbeto...?Iwillneedtobe/becomepatient,creative,hard-working,co-operative,confident,brave...
ResearchandActivitiesAfterclass,usethelibraryortheInternettofindoutfactsaboutimportantwomenscientistsinmedicine,physics,chemistry,biology,astronomyormathematics.Thereareveryusefulwebsites(includingthe“Biographiesofwomenmathematicianswebsite”).Prepareatalkonyourchosenscientists.Remembertoincludesomeinformationabouttheirlife,theirachievementsandwhytheyareconsideredimportantinsciencehistory.Thengiveyourtalktotheclass.
ResearchforTeaching
Euler,Leonhard(bornApril15,1707,Basel,Switz.diedSept.18,1783,St.Petersburg,Russia)?Swissmathematicianandphysicist,oneofthefoundersofpuremathematics.Henotonlymadedecisiveandformativecontributionstothesubjectsofgeometry,calculus,mechanics,andnumbertheorybutalsodevelopedmethodsforsolvingproblemsinobservationalastronomyanddemonstratedusefulapplicationsofmathematicsintechnologyandpublicaffairs.Euler’smathematicalabilityearnedhimtheesteemofJohannBernoulli,oneofthefirstmathematiciansinEuropeatthattime,andofhissonsDanielandNicolas.In1727hemovedtoSt.Petersburg,wherehebecameanassociateoftheSt.PetersburgAcademyofSciencesandin1733succeededDanielBernoullitothechairofmathematics.?Eulerdevotedconsiderableattentiontodevelopingamoreperfecttheoryoflunarmotion,whichwasparticularlytroublesome,sinceitinvolvedtheso-calledthree-bodyproblem—theinteractionsoftheSun,Moon,andEarth.(Theproblemisstillunsolved.)Hispartialsolution,publishedin1753,assistedtheBritishAdmiraltyincalculatinglunartables,ofimportancetheninattemptingtodeterminelongitudeatsea.Oneofthefeatsofhisblindyearswastoperformalltheelaboratecalculationsinhisheadforhissecondtheoryoflunarmotionin1772.ThroughouthislifeEulerwasmuchabsorbedbyproblemsdealingwiththetheoryofnumbers,whichtreatsofthepropertiesandrelationshipsofintegers,orwholenumbers(0,±1,±2,etc.);inthis,hisgreatestdiscovery,in1783,wasthelawofquadraticreciprocity,whichhasbecomeanessentialpartofmodernnumbertheory.?Inhisefforttoreplacesyntheticmethodsbyanalyticones,EulerwassucceededbyJ.-L?.Lagrange.But,whereEulerhaddelightedinspecialconcretecases,Lagrangesoughtforabstractgenerality;and,whileEulerincautiouslymanipulateddivergentseries,Lagrangeattemptedtoestablishinfiniteprocessesuponasoundbasis.ThusitisthatEulerandLagrangetogetherareregardedasthegreatestmathematiciansofthe18thcentury;butEulerhasneverbeenexcelledeitherinproductivityorintheskillfulandimaginativeuseofalgorithmicdevices(i.e.,computationalprocedures)forsolvingproblems.
CarlLinnaeus(bornMay23,1707,Rshult,Smland,Swed.diedJan.10,1778,Uppsala)CarlLinnaeusisaSwedishbotanistandexplorerwhowasthefirsttoframeprinciplesfordefininggeneraandspeciesoforganismsandtocreateauniformsystemfornamingthem.Linnaeuswasthesonofacurate.Hisloveofflowersdevelopedatanearlyage;whenonlyeightyearsoldhewasnicknamed“thelittlebotanist.”HestudiedattheuniversitiesofLundandUppsalaandreceivedhisdegreeinmedicinefromthelatter.
TheSystemaNaturae,whichLinnaeushadshowntothebotanistJanFredrikGronoviusinmanuscript,soimpressedGronoviusthathepublisheditathisownexpense.Linnaeus’systemwasbasedmainlyonflowerparts,whichtendtoremainunchangedduringthecourseofevolution.Althoughartificial,asLinnaeushimselfrecognized,suchasystemhadthesuprememeritofenablingstudentsrapidlytoplaceaplantinanamedcategory.Itcameintouseataperiodwhentherichnessoftheworld’svegetationwasbeingdiscoveredataratethatoutstrippedmoreleisurelymethodsofinvestigation.Sosuccessfulwashismethodinpracticethatitsveryeaseofapplicationprovedtobethegreatestobstacletoitsreplacementbythemorenaturalsystemsthatsupersededit.
Hislateryearsweretakenupbyteachingandthepreparationofotherworks:FloraSuecica(1745)andFaunaSuecica(1746);twovolumesofobservationsmadeduringthejourneysinweden,Vstgtaresa(1747)andSknskaresa(1751);HortusUpsaliensis(1748);hisPhilosophiaBotanica(1751);andtheimportantSpeciesPlantarum(1753),inwhichthespecificnamesarefullysetforth.In1755hedeclinedaninvitationfromtheKingofSpaintosettleinthatcountrywithaliberalsalaryandfulllibertyofconscience.In1761hewasgrantedaSwedishpatentofnobility,antedatedto1757,fromwhichtimehewasstyledCarlvonLinné.Anapoplecticattackin1774lefthimgreatlyweakened,andhediedfouryearslater.?TheLinnaeanmanuscripts,andhisherbariumandcollectionsofinsectsandshells,purchasedbySirJ.E.Smithin1783,arecarefullypreservedbytheLinneanSocietyatBurlingtonHouse,London.
MarieCurie
(bornNov.7,1867,Warsaw,Pol.,RussianEmpire.diedJuly4,1934,nearSallanches,France)MariaSklodowskaPolish—bornFrenchphysicistfamousforherworkonradioactivityandtwiceawinneroftheNobelPrize.WithHenriBecquerelandherhusband,PierreCurie,shewasawardedthe1903NobelPrizeforPhysics.Shewasthenthesolewinnerofthe1911NobelPrizeforChemistry.Fromchildhoodshewasremarkableforherprodigiousmemory,andattheageof16shewonagoldmedaloncompletionofhersecondaryeducationattheRussianlycée.Becauseherfather,ateacherofmathematicsandphysics,losthissavingsthroughbadinvestment,shehadtotakeworkasateacherand,atthesametime,tookpartclandestinelyinthenationalist“freeuniversity,”readinginPolishtowomenworkers.Attheageof18shetookapostasgoverness,whereshesufferedanunhappyloveaffair.FromherearningsshewasabletofinancehersisterBronia’smedicalstudiesinParis,ontheunderstandingthatBroniawouldinturnlaterhelphertogetaneducation.Shecamefirstinthelicenceofphysicalsciencesin1893.ShebegantoworkinLippmann’sresearchlaboratoryandin1894wasplacedsecondinthelicenceofmathematicalsciences.ItwasinthespringofthisyearthatshemetPierreCurie.?Theirmarriage(July25,1895)markedthestartofapartnershipthatwassoontoachieveresultsofworldsignificance,inparticularthediscoveryofpolonium(socalledbyMarieinhonourofhernativeland)inthesummerof1898,andthatofradiumafewmonthslater.FollowingHenriBecquerel’sdiscovery(1896)ofanewphenomenon(whichshelatercalled“radioactivity”),MarieCurie,lookingforasubjectforathesis,decidedtofindoutifthepropertydiscoveredinuraniumwastobefoundinothermatter.ShediscoveredthatthiswastrueforthoriumatthesametimeasG.C.Schmidtdid.?InDecember1904shewasappointedchiefassistantinthelaboratorydirectedbyPierreCurie.ThesuddendeathofPierreCurie(April19,1906)wasabitterblowtoMarieCurie,butitwasalsoadecisiveturningpointinhercareer:henceforthshewastodevoteallherenergytocompletingalonethescientificworkthattheyhadundertaken.OnMay13,1906,shewasappointedtotheprofessorshipthathadbeenleftvacantonherhusband’sdeath;shewasthefirstwomantoteachintheSorbonne.In1908shebecametitularprofessor,andin1910herfundamentaltreatiseonradioactivitywaspublished.In1911shewasawardedtheNobelPrizeforChemistry,fortheisolationofpureradium.In1914shesawthecompletionofthebuildingofthelaboratoriesoftheRadiumInstitute(InstitutduRadium)attheUniversityofParis.OneofMarieCurie’soutstandingachievementswastohaveunderstoodtheneedtoaccumulateintenseradioactivesources,notonlyforthetreatmentofillnessbutalsotomaintainanabundantsupplyforresearchinnuclearphysics;theresultantstockpilewasanunrivaledinstrumentuntiltheappearanceafter1930ofparticleaccelerators.TheexistenceinParisattheRadiumInstituteofastockof1.5gramsofradiuminwhich,overaperiodofseveralyears,radiumDandpoloniumhadaccumulated,madeadecisivecontributiontothesuccessoftheexperimentsundertakenintheyearsaround1930andinparticularofthoseperformedbyIrèneCurieinconjunctionwithFrédéricJoliot,whomshehadmarriedin1926(seeJoliot-Curie,FrédéricandIrène).ThisworkpreparedthewayforthediscoveryoftheneutronbySirJamesChadwickandaboveallthediscoveryin1934byIrèneandFrédéricJoliot-Curieofartificialradioactivity.AfewmonthsafterthisdiscoveryMarieCuriediedasaresultofleukemiacausedbytheactionofradiation.Hercontributiontophysicshadbeenimmense,notonlyinherownwork,theimportanceofwhichhadbeendemonstratedbytheawardtoheroftwoNobelPrizes,butbecauseofherinfluenceonsubsequentgenerationsofnuclearphysicistsandchemists.?In1995MarieCurie’sasheswereenshrinedinthePanthoninParis;shewasthefirstwomantoreceivethishonourforherownachievements.?
Module4SandstormsinAsia-listening教案
经验告诉我们,成功是留给有准备的人。教师要准备好教案,这是老师职责的一部分。教案可以让学生能够在课堂积极的参与互动,帮助教师能够井然有序的进行教学。写好一份优质的教案要怎么做呢?以下是小编为大家收集的“Module4SandstormsinAsia-listening教案”欢迎阅读,希望您能够喜欢并分享!
Module4SandstormsinAsia-listening教案
Step1:Pre-listening
Activity1:Matchthewordswiththedefinitions.
atmospherecarbondioxidechemicaldamage(v.n.)environmentgarbagemeltpollutionrecyclethePoles
1.theairaroundtheearthatmosphere
2.tohaveabadeffectonsomeoneorsomethingdamage
3.asubstanceusedinchemistrychemical
4.thenaturalworld—theland,air,water,plantsandanimalsenvironment
5.tochangefromsolidtoliquid,e.g.icebecomeswatermelt
6.totreatsomethingsothatwecanuseagainrecycle
7.oneofthegasesintheaircarbondioxide
8.themostnorthernandsouthernpointsonearththePoles
9.rubbishgarbage
10.damagetotheenvironmentbecauseofchemicalspollution
Step2:While-listening
Activity2:Listentoanenvironmentalexpert’sspeech.Putthetopicsbelowintheorderyouhearthem.
A.garbageB.treesC.pollutionfromcarsD.meltingicesatthePolesE.theclimate
Keys:EDCBA
Activity3:Nowlistenagain.Answerthequestions.
1.Whatisthemosturgentproblemofall?
Theclimate.
2.WhatexamplesofcoastalcitiesdoesDavidgive?
NewYorkandShanghai
3.Whatisdescribedasamajorproblem?
Carbondioxidefromcars.
4.Whathappenswhenwecutdownalotoftrees?
Thereislessoxygenandmorecarbondioxideintheatmosphere.
Activity4:Listenagain.Completethesesentences.
1.Asaresult,theiceatthePolesisbeginningtomelt.
2.Theseamayriseandcitiesonthecoastmaydisappearunderwater.
3.Toomuchcarbondioxidepollutestheatmosphere.
4.Treestakeincarbondioxideandgiveoutoxygen.
5.Weburngarbageandpollutetheatmosphere.
6.Instead,weshouldrecyclethegarbage.
Activity5:Discussion.
1)Listentothetapeandfillintheblanks.
Whyistheclimategettingwarmer?
It’spollutionthat’stheproblem.Gasesfromcarsentertheatmosphereandstopthesun’sheatfromleavingtheatmosphere.Andfactoriesgiveoutchemicalsthatdothesamething.Soasaresult,theclimateisgettingwarmer.
2)Discussion:Ifwecutdownallthetrees,whatwouldhappen?
Step3:Post-listening
1)Listentoasongandtrytocompletethelyrics.
ColorsoftheWind
VanessaWilliams
Therainstormandtheriveraremybrothers
Theheronandtheotheraremyfriends
Andweareallconnectedtoeachother
Inacircle,inahoopthatneverends
Haveyoueverheardthewolfcrytothebluecornmoon
Orlettheeagletellyouwherehe’sbeen
Canyousingwithallthevoicesofthemountain
Canyoupaintwithallthecolorsofthewind
Canyoupaintwithallthecolorsofthewind
2)Discussion.
Accordingtotheconversation,thesongandthepresentsituation,pleasethinkoutwhatwecandotoprotecttheenvironment.
Step4:Homework
Writeanessaywiththethemeofprotectingtheenvironment.