高中教案教案

发表时间：2020-11-03

Cloning教案。

一位优秀的教师不打无准备之仗，会提前做好准备，作为教师就要早早地准备好适合的教案课件。教案可以让学生们充分体会到学习的快乐，帮助教师更好的完成实现教学目标。那么怎么才能写出优秀的教案呢？为满足您的需求，小编特地编辑了“Cloning教案”，希望能为您提供更多的参考。

Unit2Cloning
核心单词
1.differ
v.不同；相异；使相异
常用结构：
AdiffersfromBin...A与B在方面不同
AdifferswithBabout/on/over...A与B就意见相左
Theirhousediffersfrommineinhavingnogarage.
他们的房子与我的不同，区别在于他们的没有车库。
Thetwosidesstilldifferwitheachotheroverthequestionofpay.双方在报酬的问题上仍各持己见。
联想拓展
differencen.不同之处
differentadj.不同的
makeadifferenceto对产生变化；对什么有
影响
differentfrom与不同，不同于高手过
招
高手过招
用适当的介词填空（原创）
①Thetwosquaresdiffercolourbutnotsize.
②Thehusbanddiffersthewifewhoistotakechargeofthemoney.
③Itdoesn?tmakeadifferencemewhetheryouaregoingtostay.
④ThisisadifferentcartheoneIdroveyesterday.
答案：1.①in;in②with;on/about/over
③to④from
2.undertake
vt.（undertook;undertaken）着手;从事;承担；保证，答应
常用结构：
undertakesth.着手/从事/承担某事
undertaketodosth.保证/答应做某事
undertakethat...保证
Thescientistundertakestheexperiment.
这位科学家从事这项实验。
Icanundertaketheresponsibilityforthechanges.
我愿意承担这些变革的责任。
Thelawyerundertookanewcase.
那个律师接了一个新的案子。
HeundertooktofinishthejobbyFriday.
他答应星期五之前完成这项工作。
高手过招
翻译句子（原创）
①他下个月要去西部旅行。
Hewillundertakeajourneytothewestnextmonth.
②我不能保证按时做完它。
Ican?tundertakethatI?llfinishitontime.
3.objection
n.不赞成；反对；异议
常用结构：
haveanobjectionto...反对
raise/voiceanobjection提出异议
联想拓展
objectv.反对，不赞成
n.物体;目标
objecttosb./sth.不赞成某人/某事
objecttodoingsth.反对做某事
objectthat...反对
Nooneobjectedtotheplan.没有人反对这项计划。
Weobjecttobeingtreatedlikethis.
我们反对受到这样的待遇。
Whydosomepeopleobjecttohumancloning?
为什么一些人反对克隆人类呢？
MotherobjectedthatJimmywastooweaktotakeupthejob.
母亲反对说，吉米身体太虚弱，不能承担那份工作。
Thebuildingisthemainobjectofhisinterest.
他最感兴趣的是这栋建筑物。
高手过招
单项填空
Wetopunishingawholegroupforoneperson?sfault.（2010¤01¤江西南昌检测）
ComplainB.objectC.opposeD.resist
解析：选B。句意为：我们反对因为一个人的错误而惩罚整体。objecttodoingsth.反对做某事。
4.obtain
vt.获得；赢得
易混辨析
obtain/acquire/gain/earn/achieve
obtain意为“获得，买到”。指通过努力或请求而得到，含有满足要求或得达到目的的意味，用于正式语体中。
acquire意为“经过努力逐步获得才能、知识、习惯等，也可用于表示对财物等的获得”，强调“一经获得就会长期持有”的含义。
gain意为“通过较大努力获得某种利益或好处；亦可指军事上的武力夺取等”。
earn意为“挣得，赢得”，指因工作等而得到报酬或待遇。
achieve意为“得到；获得”，多指成就、目标、幸福的取得。
Hefailedtoobtainascholarship.
他没有获得奖学金。
Ifinallymanagedtoobtainacopyofthereport.
我终于设法弄到了这个报告的副本。
Weshouldtrytoacquiregoodhabits.
我们应该努力养成好习惯。
Hefounditeasytoearnextramoney.
他发现赚点额外收入很容易。
Butwecanonlyachieveittogether.
然而，只有共同奋斗才能实现它。
高手过招
翻译句子（原创）
①Thejournalistimmediatelysetouttoobtaintheseimportantfacts.
那位新闻记者立即着手获取这些重要的事实。
②Knowledgecanbeobtainedthroughstudy.
知识可通过学习获得。
5.forbid
vt.(forbade/forbad;forbidden)禁止；不准；阻止；妨碍
常用结构：
forbidsth./doingsth.禁止，不许（做某事）
forbidsb.todosth.禁止某人做某事
Thelawforbidstheuseofchemicalfertilizers.
法律禁止使用化学肥料。
Iforbidyoutotellanyone.
我不准你告诉任何人。
高手过招
翻译句子（原创）
①飞机上禁止吸烟。
Smokingisforbiddenontheplane.
②他爸爸不准他和她交谈。
Hisfatherforbadehimtotalktoher.
③要禁止小孩不玩电脑游戏很难。
Itishardtoforbidchildrentoplaycomputergames.
6.owe
vt.欠(账、钱、人情等)；应该把归功于；感激，感恩
常用结构：
owesb.sth.=owesth.tosb.欠(某人)债
owesth.tosb./sth.将某事物归因或归功于某人/事
Heoweshisfather￡50.=Heowes￡50tohisfather.
他欠他父亲50英镑。
WeowethisdiscoverytoNewton.
我们把这一发现归功于牛顿。
高手过招
用适当的介词填空（原创）
①HowmuchdoIoweyouthegroceries?
②Heoweshissuccessmoreluckthanability.
③Iowealotmywifeandchildren.
答案：①for②to;to③to
7.resist
vt.抵抗；对抗
常用结构：
resiststh.抵制；阻挡某事
resistdoingsth.反对做某事
can?tresistdoingsth.忍不住做某事
Thenationwasunabletoresisttheinvasion.
该国无力抵抗侵略。
Ahealthybodyresistsdisease.
健康的身体能抵御疾病。
Icouldhardlyresistlaughing.
我忍不住笑了。
resistancen.抵抗，反抗；抵抗力
resistantadj.抵抗的；有抵抗力的
beresistanttosb./sth.对某人/某事有抵抗力
resistern.抵制者；抗拒者；电阻器
高手过招
翻译句子（原创）
①Heresistedbeingcarriedoff.
他阻挡别人把他带走。
②Shecannotresistthetemptationofchocolate.
她无法抗拒巧克力的诱惑。
重点短语
8.payoff
得到好结果，取得成功(常用主动语态)；偿清债款；付清工资解雇；(对进行)报复；收买(某人)
Atlast,hishardworkpaidoff.
最后，他的努力得到了回报。
Didyourplanpayoff?你的计划成功了吗?
联想拓展
payfor付的钱；为而付出代价
paybacksth./paysb.backsth.偿还某物/偿还某人某物
paysb....forsth.因某事而付给某人
paysb....todosth.付给某人去做某事
paysb.backforsth.向报复
高手过招
（1）单项填空
Ifyougoforalongrideinafriend?scar,it?sthecustomtooffertosomeoftheexpenses.（2010¤01¤江苏启东检测）
A.payB.payoffC.payforD.payback
（2）用pay的相关短语填空（原创）
①Aftertenyearsofhardworkingshefinally
herdebt.
②Oureffortsaresureto.
③Haveyouthemilkmanthisweek?
④Haveyouthemoneythebankyet?
⑤Iwillyounextweek.
答案：(1)解析：选C。根据句意可知，这里表示°为偿付一部分费用±，故选C。payfor为而付钱；为付出代价。
(2)①paidoff②payoff③paid④paid;to⑤pay;back
9.infavourof
赞成;支持；有利于；主张
Iaminfavourofstoppingworknow.我赞成现在停止工作。
insb.?sfavour对某人有利
dosb.afavour/doafavourforsb.帮某人忙
dosb.thefavourtodosth./dosb.afavourbydoingsth.帮助某人做某事
favourvt.赞同；支持
Thechildfavourshisfatherwithhisbrowneyes.
这个孩子棕色的眼睛像他的父亲。
温馨提示
表示°支持，赞同某人/某事±除了用infavourof之外；还可以用：beforsb./sth.;standonone?sside等。
beagainstsb./sth.表示°不支持，不赞同某人/某事±。
高手过招
(1)单项填空
Idon?tliketoaskpeopleforhelpasarulebutIwonderifyoucouldmeafavour.（2010¤01¤江苏启东检测）
A.makeB.doC.findD.get
(2)用方框内所给短语的适当形式填空（原创）
incaseof/inconsequenceof/infavourof/inpossessionof
①Allhisfamilyarehisdecisiontoworkinwesternareaaftergraduation.
②Whilereading,comingacrossnewwords,youdbetterguesstheirmeaningsratherthanrefertothedictionary.
③Marytoldmethatshewassomelovelyjewels.
④Theyhadtomovetoanothercitythetyphoon.
答案：(1)解析：选B。句意为：通常我不喜欢向别人寻求帮助，但我希望你能帮我的忙。dosb.afavour帮某人忙。
(2)①infavourof②incaseof
10.(be)boundtodo...
一定或注定(做)
Theweatherisboundtogetbettertomorrow.
明天天气一定会变好的。
You?vedonesomuchworkthatyou?reboundtopasstheexam.你下了这么大功夫,一定能通过考试。
联想拓展
boundv.跳跃;限制;形成的界限
n.跳跃;界限;范围
adj.必然的,一定的
beboundtosth.受限制；被所束缚
beboundfor准备到去；开往；去地方
beboundupwith与有密切关系
高手过招
用括号内所给词语的适当形式填空（原创）
①Theseproblemswerealmostbound(arise).
②Whenyouaredealingwithsomanypatients,mistakes(bound)happen.
答案：①toarise②areboundto
11.beingood/poorcondition
状况很好（坏）;情况很好（坏）
联想拓展
outofcondition状况欠佳
working/living/studyingconditions工作/生活/学习环境
oncondition(that)...在条件下；
倘若
onnocondition一点也不;决不
inexcellentcondition处于极佳的状况
Theshipisnotinacondition/isinnoconditiontomakealongvoyage.此船的现状不适宜远航。
Thecarisstillinexcellentcondition.这辆汽车状况极佳。
高手过招
用适当的介词填空（原创）
①Thecarhasbeenwellmaintainedandisexcellentcondition.
②Hesexcellentconditionamanofhisage.
③Ihadnoexerciseforages;I?mreallyofcondition.
④Youcangooutconditionthatyouwearanovercoat.
答案：①in②in;for③out④on
重点句型
12.ThencamethedisturbingnewsthatDollyhadbecomeseriouslyill.
接着传来了多莉病重的坏消息。
当时间副词now,then位于句首，谓语是come,appear等表示°出现±一类的动词时，主句用全倒装语序。
Nowcomesyourturn.现在轮到你了。
高手过招
单项填空
Inthedarkforests,somelargeenoughtoholdseveralEnglishtowns.（2010¤01¤河南镇平检测）
A.standmanylakesB.liemanylakes
C.manylakeslieD.manylakesstand
解析：选B。考查词语辨析及倒装语序。当地点状语位于句首时，主句用全部倒装，表示某物存在于某处，应用动词lie。

延伸阅读

Unit2Cloning

一名优秀的教师在教学时都会提前最好准备，教师在教学前就要准备好教案，做好充分的准备。教案可以让学生更好的消化课堂内容，帮助教师提高自己的教学质量。优秀有创意的教案要怎样写呢？下面是小编为大家整理的“Unit2Cloning”，欢迎您参考，希望对您有所助益！

Unit2Cloning

TheFirstPeriodReading

Teachinggoals教学目标

1.Grasptheimportantwordsandsentencespatterns

a.重点词汇和短语

clone，commercial，haveagreatimpacton，undertake，appropriate，object，forbid，accumulate，castdown，objectto，themedia，infavourof

b.重点句子

Itisawayof….

Thefactisthat….

Thequestionthatconcernedallscientistsis….

2.Abilitygoals能力目标

Enablethestudentstodescribecloning:Whatistheadvantagesofcloning？Whatistheproblemsordangersofcloning？Whatisyouropinionofcloning？

3.Learningabilitygoals学能目标

Knowthedefinitionofthecloneandhelpthestudentslearnhowtodescribecloning.

Teachingimportantpoints教学重点

Graspthemainideaofeachparagraphandthethemeofthetext

Teachingdifficultpoint教学难点

Helpthestudentsanalyzethewritingtechniquesofthearticle.

Teachingmethods教学方法

Skimming,task-basedmethodanddebatemethod.

Teachingaids教具准备

aprojectorandsomeslides.

Teachingprocedures

StepILead-in

Ashortquizetotesthowmuchtheyknowaboutcloning.Showthemsomepicturestoknowtheimportanceoftheclone.Arisetheirinteresttoknowmoreknowledgeaboutclone.

StepIIPre-reading
Questionsaboutclone:

1.What’stheclone?

Answer:Cloningisawayofmakinganexactcopyofanotheranimalorplant.Itcanbedividedintonaturalcloneandman-madeclone.Anaturalcloneisonethatoccursinnatureandaman-madecloneisonethatisprocuredthroughhumanintervention(介入，干预).

2.Arethefollowingclonesthesame?

Ifnot,whatisthedifference?

Answer:NO.Thefirsttwoareman-madeclones,theresttwoarenaturalclones

StepIIIFastreading

Skimthetextandgetthemainideaofeachparagraphandthethemeofthetext

Mainidea:para1Whatisthecloning

Para2Twomajorusesofcloning

Para3ThebirthanddeathofDolly

Para4-5ControversybroughtbyDolly

Them:Animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.

StepIVScanning

1.Tasks

Para1:1.Howdogardenerscloneplants?

Para2:1.Whattwomajorusesdocloninghave?

2.Howmanyfemalesheepparticipateinthecloningofanewsheep?

Para3:Fillintheblanks

Para4:guessthemeaningoftheword“controversial”

Para5:trueoffalse

2.languagepoints

1.identicaladj.①完全相同的(常与with/to连用)②同一的,同样的

eg.Thesetwodesignsarealmostidentical.

2.straightforwardadj.简单的,易懂的,直接了当的;正直的,坦率的

eg.Thequestionisquitestraightforward;whycan’tyouanswerit?

Atleasthewasquitestraightforwardaboutit,youcan’tsayhewastryingtodeceiveyou.他起码在那件事上是相当坦率的，你不能说他试图欺骗你。

3.undertakevt.实施，从事，着手做，承担,担任,许诺,保证，采取

undertakesth承担某事

undertaketodosth许诺做某事/同意做某事

undertakethat…保证…

undertaking(N)用单数/任务/事业/保证

4.castdown：feelingunhappyanddepressed使沮丧,低沉，使下降,推翻

becastdown=feeldiscouraged

Hewasmuchcastdownbythefailureoftheexperiment.

Don’tbesocastdown.Justkeepupyourspirits

5.beappropriatetbesuitableforaparticularperson,condition,occasionorplace;fitting适合于…的，与…相称的

用与你的题目相称的体裁写。

Writeinastyleappropriatetoyoursubject.

普通鞋不适于下稻田。

Ordinaryshoesarenotappropriatetopaddyfields.

6.astormof:suddenviolentoutbrustordisplayofstrongfeeling常指感情猛烈爆发或强烈表现

astormoftears泪如雨下

astormofprotest/applause/cheers/abuse/criticism/bullets/arrows一阵猛烈的抗议/暴风雨般的掌声/暴风雨般的欢呼声/辱骂/评击/弹雨/箭雨

storminateacup小题大作，茶杯里的暴风雨

takebystorm袭取；突然攻夺；博取（观众的）欢心

7.have/makeastrong/greatimpacton…对…有/产生巨大影响

这本书对其读者产生了极大的影响。

Thisbookmadeagreatimpactonitsreaders.

这场反对吸烟的运动对年轻人有极大的影响.

Theanti-smokingcampaignhashadquiteanimpactonyoungpeople.

8.accumulatevt./vi.:togatherorpile收/堆集，积聚/累,堆积强调“经过一段比较长的时间由少积多的积累”，使用范围较广，似乎凡是数量方面的增长都可以表示。

Thecompanyhasaccumulatedgreatwealthwithinafewyears.

StepVReadagain

Dosomeexercisestocheckhowwelltheygraspthispart

Iftimepermits,askthestudentstohaveaheateddebateoverwhetherhuamncloningshouldbeallowed.

StepⅥConsolidation

Askthestudentstofillintheblankscorrectly

Homework

Readthepassageagainandfindoutallthenounclausesinthetext.

Writeashortpassageaccordingtothefollowingtopic.

Shouldhumancloningbeallowed?

3.RetelltheprocedureoftheDollythesheep.

Book8Unit2Cloning

Book8Unit2Cloning
WarmingupandPre-reading

Ⅰ.背景阅读
Cloningisthetechniqueofproducingageneticallyidenticalduplicateofanorganism.Acloneissaidtobealldescendantsderivedasexuallyfromasingleindividual,asbycuttings,bulbs,byfission,bymitosis,orbyparthenogenesisreproduction.Itsoundsverydifferentandcomplicatedtous.
Infact,inourdailylife,thishappensoften.Forexample,gardenerstakecuttingsfromgrowingplantstomakenewones.Youoftenseethatyourmotherpicksasmallbranchfromagrowingplanttomakeanewone.Ifshelikesthiskindofflowers,shecandocloning.Cloningalsohappensinanimalsorhumanbeingswhentwinsidenticalinsexandappearanceareproducedfromthesameoriginalegg.Thefactisthatcloningplantsisstraightforwardbutthecloningofanimalsismorecomplicated.
Thepossibilityofhumancloning,raisedwhenScottishscientistsatRoslinInstitutecreatedthemuch-celebratedsheep"Dolly",arousedworldwideinterestandconcernbecauseofitsscientificandethicalimplications.ShewasthefirstmammaltobeclonedfromadultDNAtakenfromanadultcell.Previously,animalshadonlybeenclonedusingembryocellswhichalreadyhavethepotentialtobecomeacompleteembryoinitsownright.ThebigbreakthroughwithDollywastomakeaclonefromanordinary,adultcellinthiscasefromafemalegoat’sudder.

1.Fillintheblanksaccordingtothepassage.
1)Thedefinitionofcloning
Cloningisa________ofproducingageneticallyidenticalduplicateofananimaloraplant.Ithappensbothin______andin_______.Theycanbeclonedby_______orhumans.Theformeris_______clonewhilethelatterisman-madeclone.
2)HowdoesDollydifferfromothersheep?
Shewas______byhumanswhiletheotherswerebornnaturally.
So,Dollywasa______sheep.

Reading
I.Readingcomprehension:
1.Themainideaofthetextis____
A.animalcloningisveryvaluableandcanbenefittheworld.
B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden.
C.animalcloningiswelldevelopedbecauseDollythesheepwasborn.
D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.
2.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatience
C.thescientistswererewardedandgotlotsofmoney
D.manyotherattemptstoclonemammalsfailed
3.Whatisthewriter’sattitudetowardcloninginthispassage?
A.Thewriterisagainstcloning.
B.Thewriterisinfavorofcloning.
C.Thewriterisneutraltowardscloning.
D.Thewriterisinagreementwithcloning.
4.Whichofthefollowingisnotanadvantageofcloning?
A.Cloningcanbeusedformedicalpurposes.
B.Largequantitiesoffoodcanbeproducedbycloning.
C.Cloningcanhelpkeepanimalsfrombecomingextinct.
D.Peoplecanclonethemselvesatwill.
5.Wecaninferfromthelastthreeparagraphsthat___.
A.ThenormaldevelopmentofDollyhadnoeffectonthecloningofotherspecies.
B.Dolly’sseriousdiseaseandfinaldeathdisturbedthewholeworld.
C.Dollysuccessfullyclonedanewlambwiththehelpofcloningscientists.
D.Therewereargumentsaboutanimalsaboutanimalcloningandconcernsaboutthefutureofcloning.
6.Whatisthewritingstyle?
A.Expositive（说明性的）B.Descriptive
C.Argumentative（议论性的）D.Narrative

II.Fastreading:TrueorFalsequestions
1.Cloningmeansmakingacopyofananimaloraplant.
2.Gardenerscanmakealotofmoneybycloningplants.
3.Cloninganimalsisascomplicatedascloningplants.
4.Dollythesheepwasthefirstsuccessfulcloneofamammal.
5.Naturalcloneshappeninanimalsaswellasinplants.

III.Fillinthechartusingtheinformationfromthetext.Addonereasonofyourownineachcolumn.
ProblemsordangersofcloningAdvantagesofcloning
Animalsmay_______
_____________ofolderanimals.Medicalcloningcould_________________forseriousdegenerative(变质的）________inhumans.
Animalclonesmay______
_________thanthedonoranimalsCloningplantscan______
_________ofsimilar_____________________.
________________maywanttoclonethemselves.Cloningplantscanbe_______forresearchon_____________________.
Thereare__________________tocloninghumanbeings.Cloningcanhelpsave____________________.

Ⅳ.Writing
用大约30个词概括课文的内容，然后根据以下要求写一篇文章。
内容:
1．人们对克隆的看法
2．你对克隆所持的观点。
要求:词数:120
题目自拟

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LanguagePointsofReading1
1.differvi.不一致,不同,相异,不同意,意见相左
常见的搭配有：
AandBdifferin…
AdiffersfromB
sbdifferfrom/withsbon/about/over/uponsth
拓展:differentadj.
differencen.差异,差别,分歧,争论,差额
bedifferentfrom与…不同
makenodifferencetosb.对没有影响
makeadifference起作用,产生影响
即时练习：用介词from,with,on,about,upon或in填空。
(1)Wediffer_________him_________thatquestion.
(2)Thetwonationsdiffer______cultureandreligion.
(3)Theclimateherediffers___________thatoftheSouth.
2.undertakevt.实施，从事，着手做，承担,担任,许诺,保证，采取,答应
undertakesth承担某事
undertakeatask/project承担一个任务/项目
undertaketodosth许诺做某事/同意做某事
undertakethat…保证…
即时练习：完成下列句子。
Hewill_____________________________nextmonth(去旅行).
He__________________________________________(承担了一项新任务).
我愿意承接这项变革的责任。
Ican_________________________forthechanges.
他许诺当我们的向导.
He___________________________ourguide.
3.disturbvt.扰乱,使不安,弄乱
disturbedadj.被乱的,动乱的,不安的
disturbingadj.令人不安的/烦扰
即时练习：用disturb,disturbing,disturbed填空。
(1)I’mvery__________aboutAlice.
(2)Don’t_________thepapersonmydesk.
(3)Thiscountryisina____________state.
(4)What____________newsitis!
(5)Alightwind___________thesurfaceofthewater.
4.castdown：feelingunhappyanddepressed使沮丧,低沉，使下降,推翻
becastdown=feeldiscouraged
实验失败使得他很沮丧。
Hewasmuchcastdownbythefailureoftheexperiment.
不要沮丧。继续保持你的精神。
Don’tbesocastdown.Justkeepupyourspirits.
即时练习：将下列句子译成英语
(1)听到这个消息他很沮丧。
________________________________________________________________
(2)发现事情的真相使他很沮丧。
________________________________________________________________
拓展:
castaway丢弃,抛弃,使失事,使漂流
castoff放弃；丢弃,摆脱
castout赶走,驱逐
5.AltogetherDollylivedforsixyears,…
altogetheradv.
①全部，总共
这个中心区在这次飓风中失去了1000多棵树。
__________________________________________________________
②总而言之
总之，我们的成就是巨大的。
__________________________________________________________
③完全地(completely)
他并不完全确信接下去做什么。
__________________________________________________________
区别:alltogether与altogether
①作“总共”解时，它们可以互换使用。
Therewerealtogether/alltogether42studentsintheclass.
我们班总共有42个学生。
②alltogether作“一道,一起”解时,不能用altogether替换。
Theycamealltogether.他们一起来。
③altogether意为“完全地，彻底地，总之，总而言之”，不可与alltogether互换，用于否定句时是部分否定。
It’saltogetheroutofthequestion.它完全不可能。
Idon’taltogetheragreewithyou.我并不完全赞同你的看法
6.forbidvt.(forbade/forbad,forbidden,forbidding)禁止，不准，不许
forbidsth.
forbiddoingsth.
forbidsb.todosth.
forbidthat…
Smokingshouldbeforbiddeninpublicplaces.公共场所应禁止吸烟。
Iforbidyoutotellanyone.我不准你告诉任何人
Thelawforbidsbuildingonthisland.法律禁止在这块土地上建筑。
即时练习：完成下列句子
(1)Theschool_____________________________________________________(禁止学生吸烟).
(2)Heisforbidden__________________________________________(进入这个房间).
7.infavourof赞成；有利于(与against相对)
Isheinfavouroftheplan?他赞成这项计划吗？
拓展：
insb’sfavor对某人有利
dosbafavor=doafavorforsb帮某人忙做
infavorwithsb.受某人支持
即时练习：将下列句子译成英语
目前我没有得到大家的支持。
________________________________________________________________
今天你能帮个忙去学校接迈克吗？
________________________________________________________________
8.Objectto反对；不同意
objecttosb/sth反对/不赞成某人某事
objecttodoingsth反对做某事
objecttosbdoingsth反对某人做某事
have/makeanobjectionto(doing)sth对表示反对
即时练习：将下列句子译成英语
学生反对像孩子似地被对待。
_______________________________________________________________
我们反对因为一个人的错误而惩罚整个班级。
_______________________________________________________________
ReadingII
Ⅰ.Answerthefollowingquestions:
1.Doyoulikedinosaurs?Wherehaveyouseenthem?Canyouseetheminourreallife?Why?
2.Doyouthinkitispossibletoclonedinosaurs?Ifyes,doyouthinkthat’sgoodforhumanbeings?Why?
Ⅱ.Fastreading
1.Thewriterofthetext_____
A.isexcitedbythepossibilityofcloningfierceandextinctanimals
B.believesthatextinctanimalscanbebroughtbacktolifebycloning
C.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaurs
D.dreamsofdinosaursreturningtotheearth
2.ThefilmJurassicParkispopularbecause_____.
A.peopleareinterestedinthesubjectofcloning
B.alltheactorsaredinosaurs
C.itwasdirectedbyascientistwhoclonesdinosaurs
D.itprovesveryinteresting
3.Whichofthefollowingistrue?____
A.Micewereclonedin1981.
B.Dollythesheepwasthefirstclonedanimal.
C.Thenameoftheclonedcowis“Bison”
D.Chinawassuccessfulincloningmammals.
4.Thereasonswhyagroupofclonedanimalsalldieofthesameillnessdo
NOTinclude____.
A.theyhavethesamearrangementofgenes
B.thereisn’tenoughdiversityinthegroupforittoovercomeillnesses
C.theillnessisanewone
D.theirarrangementofgenescannotresistthatnewdisease
5.Wecaninferfromthetextthat____
A.scientistsareexperimentingtoclonedinosaurs
B.dinosaurswillneverreturntotheearth
C.clonedanimalswillonlyliveinthezoo
D.theDNAofdinosaurscanonlysurvive10,000year
Ⅲ.Languagepoints
1.fromtimetotime=occasionally,nowandthen有时,间或,偶尔,
2.invain[invein]徒然，白费，无效
Dayafterdayshe_____________________forhimtotelephoneher.
日复一日，她徒劳地等待他的电话。
Theyendeavouredtomakeherhappy_____________________他们尽量使她快乐，却徒劳无功。
Allourwork____________________________我们的工作全都白干了。
3.resist
1)抵抗
ToresistornottoresistJapan?要不要抗日?
2)抗(酸),耐(热等)
Thisspecialcoatingisdesigned_________________rust.
这一特别的涂层旨在抗锈。
Ahealthybody________disease.健康的身体能抵御疾病。
3)(常用于否定句)忍耐,忍住[+v-ing]
I__________________thetemptationtoteaseOllie.我忍不住要逗奥利玩
4.baseon/upon以……为基础,依据
basesth.on/upon…
sth.isbasedon/upon…
单元词组复习
翻译词组：
1，使沮丧____________________________________
2，赞成，支持____________________________________
3，反对____________________________________
4，一定；注定____________________________________
5，不时____________________________________
6，使复生____________________________________
7，在另一方面____________________________________
8，把…建立在…基础上____________________________________
9，值得做某事____________________________________
10，通过（方式）____________________________________
11,一直，总是____________________________________

Grammar
聚焦名词性从句
[讲一讲]同学们在学习和使用名词性从句时要特别注意以下几点：
1.注意连接词that与what的区别：
that在引导名词性从句时，只起连接作用，不在从句中作任何成分；what在引导名词性从句时不仅起连接作用，而且在从句中充当主语、宾语、表语等。如：
Seetheflagsontopofthebuilding?Thatwaswhatwedidthismorning.（what作did的逻辑宾语）
Whatmakesthisshopdifferentisthatitoffersmorepersonalservices.（what引导主语从句，且在主语从句中作主语）
2.注意连接词whether与if的区别：
whether可引导所有的名词性从句，if一般只能引导宾语从句。在引导宾语从句时两者常可互换，但介词后的宾语从句只能用whether引导；此外，whether后可直接用ornot,if则不行。如：
Thequestioniswhetherhewillacceptourinvitationandcometoourparty.（whether引导表语从句，一般不用if代替）
Canyoutellmewhetherornotthetrainhasleft?（与ornot直接连用，只能用whether）
3.注意名词性从句与定语从句的区别：
名词性从句相当于一个名词，在句中可以充当主语、宾语、表语等，而定语从句相当于一个形容词，在句中充当定语。
有些连接词如that,which,where,when等，既可引导名词性从句又可引导定语从句；还有些连接词如what,whatever等，不能引导定语从句。如：
Hepromisedtodoeverythingthathecoulddotohelpusout.(that引导定语从句)
Hepromisedtodowhateverhecoulddotohelpusout.(whatever引导宾语从句)
Thecoatisstillwhereyouhaveleftit.(where引导表语从句)
Thecoatisstillintheroomwhereyouhaveleftit.(where引导定语从句)

[巩固练习]
Exercise1
下列各句均有一处错误，请指出并改正。
1.Whatfashiondiffersfromcountrytocountrymayreflecttheculturaldifferencesfromoneaspect.
2.Theywanttomakeitcleartothepublictheyaredoinganimportantandnecessaryjob.
3.Theproblemiswhyyoucan’tforceeveryonetolistentoyou.
4.Noonecantellexactlythatmanwilllooklikeinamillionyears.
5.Ijusthavenoideathathehasbeensoexcitedthesedays.
6.Policewerecalledintofindoutthatcausedthebigfire.
7.Itisrequiredweshouldhaveaclassmeetingtodiscusstheproblem.
8.Thedoctorsreallydoubtthatmymotherwillrecoverfromtheseriousdiseasesoonornot.
9.Itwassuggestedthathewassenttothehospitalatonce.
10.Iaminterestedinthatyouarereading.
Exercise2
Choosethebestanswer.
1.Theyexpressedthehope___theywouldcomeovertoChina.
A.whichB.thatC.whomD.when
2.Thefact___hedidn’tseeTomyesterdayistrue.
A.thatB.whichC.whenD.what
3.Ihavenoidea____hewillcomeback.
A.whereB.whenC.whatD.that
4.Thenews___surprisedeverybodyyesterdaynowprovestobefalse.
A.thatB.whenC.whatD.how
5.Oneofthemenheldtheview___thebooksaidwasright.
A.whatthatB.thatwhich
C.thatwhatD.whichthat
6.Wordhascome___someAmericanguestswillcomeforavisittoourcollegenextweek.
A.whatB.whetherc.thatD.which
7.Hemadeapromise___anyonesethimfreehewouldmakehimveryrich.
A.thatB.ifC.whatD.thatif
8.Theylosttheirwayintheforestand____mademattersworsewas___nightbegantofall.
A.what;thatB.it;that
C.what;whenD.which;what
9.Marywroteanarticleon___theteamhadfailedtowinthegame.
A.whyB.what
C.whoD.that
10.Iwassurprisedbyherwords,whichmademerecognize___sillymistakesIhadmade.
A.whatB.that
C.howD.which
Exercise3
Choosethebestanswer.
1.Thequestionis____thefilmisworthseeing.
A.ifB.whatC.whetherD.how
2.Theyreceivedorders_____theworkbedoneatonce.
A.whichB.whenC./D.that
3.Thereason____Ihavetogois____mymotherisillinbed.
A.why;whyB.why;becauseC.why;thatD.that;because
4.___Ican’tunderstandis___shewantstochangehermind.
A.What;whyB.Which;howC.That;whyD.What;because
5.____hisdreamofgoingtocollegewillcometrueisuncertain.
A.ThatB.WhetherC.IfD.Evenif
6.Itisknowntous___wherethereispollution,thereisharm.
A.whichB.whereC.whatD.that
7.Ihavetheinformation____.
A.ofwhathe’llcomesoonB.thathe’llcomesoon
C.ofthathe’llcomesoonD.hiscomingsoon
8.---Isawyourneighborbreakyourwindowwithabasketball.
---____itmademenearlymad.
A.ThathebrokeB.WhathebrokeC.HebrokeD.Hisbreak

shorttime.
A.howB.thatC.whenD.what
10.---CanIhelpyou?
---Yes,doyouknow____?
A.whencomesthebusB.whenwillcomethebus
C.whendoesthebuscomeD.whenthebuscomes

教师参考答案
Book8Unit2Cloning
WarmingupandPre-reading

1.Fillintheblanksaccordingtothepassage.
1)Thedefinitionofcloning
Cloningisaway/techniqueofproducingageneticallyidenticalduplicateofananimaloraplant.Ithappensbothinplantsandinanimals.Theycanbeclonedbythemselvesorhumans.Theformerisnaturalwhilethelatterisman-made.
2)HowdoesDollydifferfromothersheep?
Shewasclonedbyhumanswhiletheotherswerebornnaturally.
So,Dollywasaclonedsheep.

2.Discussthefollowingquestions.
1).Canyouseeanycloninghappeninourdailylife?
2).Whatbenefitscanhumansgainfromcloning?
3).Whatproblemsmayarisewhenhumansarecloned?
4).Shouldwecloneahuman?
5).Couldcloningreplacesexasthemeansofcreatingnewhumanlife?
6).Couldaparentcloneachildwhoisdyingofaterminalillness?
Referenceanswerstothequestions
1.Thishappensinplantswhengardenerstakecuttingsfromgrowingplantstomakenewones,andwhensmallpartsofaplantaretakenandgowninalaboratory.Italsohappensinanimalswhentwinsidenticalinsexandappearanceareproducedfromthesameoriginalegg.
2.Itcanhelpcurediseaseandcanhelpcoupleswhohavenobabytobearanewbaby.
3.TheremaybemorebadpeoplelikeHitler.
4.Inmyopinion,Idonotagree,foritmaycausemanymoralproblems.
5.No.Becauseclonedhumanhasthesamequalityastherealhuman,naturalbornbaby’squalityishigherthanhisparents.
6.No.Theclonedbabyalsohasthedisease.

Reading
I.Readingcomprehension:
1.Themainideaofthetextis____
A.animalcloningisveryvaluableandcanbenefittheworld.
B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden.
C.animalcloningiswelldevelopedbecauseDollythesheepwasborn.
D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.
2.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatience
C.thescientistswererewardedandgotlotsofmoney
D.manyotherattemptstoclonemammalsfailed
3.Whatisthewriter’sattitudetowardcloninginthispassage?
A.Thewriterisagainstcloning.
B.Thewriterisinfavorofcloning.
C.Thewriterisneutraltowardscloning.
D.Thewriterisinagreementwithcloning.
4.Whichofthefollowingisnotanadvantageofcloning?
A.Cloningcanbeusedformedicalpurposes.
B.Largequantitiesoffoodcanbeproducedbycloning.
C.Cloningcanhelpkeepanimalsfrombecomingextinct.
D.Peoplecanclonethemselvesatwill.
5.Wecaninferfromthelastthreeparagraphsthat___.
A.ThenormaldevelopmentofDollyhadnoeffectonthecloningofotherspecies.
B.Dolly’sseriousdiseaseandfinaldeathdisturbedthewholeworld.
C.Dollysuccessfullyclonedanewlambwiththehelpofcloningscientists.
D.Therewereargumentsaboutanimalcloningandconcernsaboutthefutureofcloning.
6.Whatisthewritingstyle?
A.Expositive（说明性的）B.Descriptive
C.Argumentative（议论性的）D.Narrative

(Answers:DBCDDA)

III.Fillinthechartusingtheinformationfromthetext.Addonereasonofyourownineachcolumn.

ProblemsordangersofcloningAdvantagesofcloning
Animalsmaydeveloptheillnessesofolderanimals.Medicalcloningcouldproducecureforseriousdegenerative(变质的）illnessesinhumans.
Animalclonesmaydieyounger
thanthedonoranimalsCloningplantscanproduceplantsofsimilarqualityforsale..
Evilleadersmaywanttoclonethemselves.Cloningplantscanbeusefulforresearchonnewplantspecies.
Therearemoralobjectionstocloninghumanbeings.Cloningcanhelpsaveendangeredanimals.

Ⅳ.Writing
用大约30个词概括课文的内容，然后根据以下要求写一篇文章。
内容:
3．克隆的利与弊
4．你对克隆所持的观点。
要求:词数:120
题目自拟
OnCloning
ThepassageintroduceswhatiscloningandtheprocedureofcloningDollythesheep.However,thebirthanddeathofDollyhasevokedmuchcontroversyoncloninganimals.
Assoonascloningwasdiscovered,there’remoreandmoredisputesaboutit.Toacertaindegree,itisboundtobenefithumanbeingsalotasalargemedicalbreakthrough.Besides,wecanclonetheendangeredanimalsandplantstosavethem,anditcanmakecropsgrowbetterandcowsmakebettermilk.Asyoucansee,‘cloning’bringsusmanygoodchanges.However,ithassomedisadvantages,too.Forsonething,itisagainsttheruleofnature,andmayevenraisemoralrisk.Foranother,althoughwecancloneaperson,wecannotcloneasoul.
Sinceitissuchacontrovercialtechnique,weshouldbeextremelycautiousofwhatwedoandthusrememberwewillsurelyberespondibleforalltheresultscreatedbyourselves.Whatismore,thegovernmentshouldmakealawtotellhowtousethistechnology.Lastbutnottheleast,thescientistsshouldstudymoretoletusknowmoreaboutcloning.Ifso,I’msurecloningwillchangetheworldwithitsadvantages.

LanguagePointsofReading1
2.differvi.不一致,不同,相异,不同意,意见相左
常见的搭配有：
AandBdifferin…
AdiffersfromB
sbdifferfrom/withsbon/about/over/uponsth
拓展:differentadj.
differencen.差异,差别,分歧,争论,差额
bedifferentfrom与…不同
makenodifferencetosb.对没有影响
makeadifference起作用,产生影响
即时练习：用介词from,with,on,about,upon或in填空。
(1)Wedifferfromhimonthatquestion.
(2)Thetwonationsdifferincultureandreligion.
(3)TheclimateherediffersfromthatoftheSouth.
2.undertakevt.实施，从事，着手做，承担,担任,许诺,保证，采取,答应
undertakesth承担某事
undertakeatask/project承担一个任务/项目
undertaketodosth许诺做某事/同意做某事
undertakethat…保证…
即时练习：完成下列句子。
Hewillundertakeajourneynextmonth(去旅行).
Heundertookanewtask(承担了一项新任务).
我愿意承接这项变革的责任。
Icanundertaketheresponsibilityforthechanges.
他许诺当我们的向导.
Heundertooktobeourguide.
4.disturbvt.扰乱,使不安,弄乱
disturbedadj.①被乱的,不安的
②不幸的，多灾多难的
Thecriminalisfromadisturbedfamily.
disturbingadj.令人不安的/烦扰
即时练习：用disturb,disturbing,disturbed填空。
(1)I’mverydisturbedaboutAlice.
(2)Don’tdisturbthepapersonmydesk.
(3)Thiscountryisinadisturbingstate.
(4)Whatdisturbingnewsitis!
(5)Alightwinddisturbedthesurfaceofthewater.
4.castdown：feelingunhappyanddepressed使沮丧,低沉，使下降,推翻
becastdown=feeldiscouraged
实验失败使得他很沮丧。
Hewasmuchcastdownbythefailureoftheexperiment.
不要沮丧。继续保持你的精神。
Don’tbesocastdown.Justkeepupyourspirits.
即时练习：将下列句子译成英语
(1)听到这个消息他很沮丧。Hewascastdowntohearthenews.
(2)发现事情的真相使他很沮丧。Findingoutthetruthmadehimcastdown.

拓展:
castaway丢弃,抛弃,使失事,使漂流
castoff放弃；丢弃,摆脱
castout赶走,驱逐
5.AltogetherDollylivedforsixyears,…
altogetheradv.
①全部，总共
这个中心区在这次飓风中失去了1000多棵树。
Altogetherthecentrelostmorethan1,000treesinthehurricane.
②总而言之
总之，我们的成就是巨大的。
Altogether,ourachievementsaregreat.
③完全地(completely)
他并不完全确信接下去做什么。
He’snotaltogethersurewhattodonext.
区别:alltogether与altogether
①作“总共”解时，它们可以互换使用。
Therewerealtogether/alltogether42studentsintheclass.
我们班总共有42个学生。
②alltogether作“一道,一起”解时,不能用altogether替换。
Theycamealltogether.他们一起来。
③altogether意为“完全地，彻底地，总之，总而言之”，不可与alltogether互换，用于否定句时是部分否定。
It’saltogetheroutofthequestion.它完全不可能。
Idon’taltogetheragreewithyou.我并不完全赞同你的看法
6.forbidvt.(forbade/forbad,forbidden,forbidding)禁止，不准，不许
forbidsth.
forbiddoingsth.
forbidsb.todosth.
forbidthat…
Smokingshouldbeforbiddeninpublicplaces.公共场所应禁止吸烟。
Iforbidyoutotellanyone.我不准你告诉任何人
Thelawforbidsbuildingonthisland.法律禁止在这块土地上建筑。
即时练习：完成下列句子
(1)Theschoolforbidsthestudentstosmoke(禁止学生吸烟).
(2)Heisforbiddenentertheroom(进入这个房间).
7.infavourof赞成；有利于(与against相对)
Isheinfavouroftheplan?他赞成这项计划吗？
拓展：
insb’sfavor对某人有利
dosbafavor=doafavorforsb帮某人忙做
infavorwithsb.受某人支持
即时练习：将下列句子译成英语
目前我没有得到大家的支持。
AtpresentIamnotinfavorwithyou.

今天你能帮个忙去学校接迈克吗？
CouldyoudomeafavortopickupMikefromschool?
8.Objectto反对；不同意
objecttosb/sth反对/不赞成某人某事
objecttodoingsth反对做某事
objecttosbdoingsth反对某人做某事
have/makeanobjectionto(doing)sth对表示反对
即时练习：将下列句子译成英语
学生反对像孩子似地被对待。
Thestudentsobjectedtobeingtreatedlikechildren.
我们反对因为一个人的错误而惩罚整个班级。
Weobjecttopunishingthewholeclassforone’smistake.
ReadingII
Ⅰ.Answerthefollowingquestions:
1.Doyoulikedinosaurs?Wherehaveyouseenthem?Canyouseetheminourreallife?Why?
2.Doyouthinkitispossibletoclonedinosaurs?Ifyes,doyouthinkthat’sgoodforhumanbeings?Why?
Ⅱ.Fastreading
2.Thewriterofthetext_____
A.isexcitedbythepossibilityofcloningfierceandextinctanimals
B.believesthatextinctanimalscanbebroughtbacktolifebycloning
C.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaurs
D.dreamsofdinosaursreturningtotheearth
2.ThefilmJurassicParkispopularbecause_____.
A.peopleareinterestedinthesubjectofcloning
B.alltheactorsaredinosaurs
C.itwasdirectedbyascientistwhoclonesdinosaurs
D.itprovesveryinteresting
3.Whichofthefollowingistrue?____
B.Micewereclonedin1981.
B.Dollythesheepwasthefirstclonedanimal.
C.Thenameoftheclonedcowis“Bison”
D.Chinawassuccessfulincloningmammals.
4.Thereasonswhyagroupofclonedanimalsalldieofthesameillnessdo
NOTinclude____.
A.theyhavethesamearrangementofgenes
B.thereisn’tenoughdiversityinthegroupforittoovercomeillnesses
C.theillnessisanewone
D.theirarrangementofgenescannotresistthatnewdisease
5.Wecaninferfromthetextthat____
A.scientistsareexperimentingtoclonedinosaurs
B.dinosaurswillneverreturntotheearth
C.clonedanimalswillonlyliveinthezoo
D.theDNAofdinosaurscanonlysurvive10,000year
(Answers:CADCB)
Ⅲ.Languagepoints
4.fromtimetotime=occasionally,nowandthen有时,间或,偶尔,
5.invain[invein]徒然，白费，无效
Dayafterdayshewaitsinvainforhimtotelephoneher.
日复一日，她徒劳地等待他的电话。
Theyendeavouredtomakeherhappybutinvain他们尽量使她快乐，却徒劳无功。
Allourworkwasinvain.
我们的工作全都白干了。
6.resist
1)抵抗
ToresistornottoresistJapan?要不要抗日?
2)抗(酸),耐(热等)
Thisspecialcoatingisdesignedtoresistrust.
这一特别的涂层旨在抗锈。
Ahealthybodyresistsdisease.健康的身体能抵御疾病。
3)(常用于否定句)忍耐,忍住[+v-ing]
IcouldntresistthetemptationtoteaseOllie.我忍不住要逗奥利玩
4.baseon/upon以……为基础,依据
basesth.on/upon…
sth.isbasedon/upon…
单元词组复习
翻译词组：
1，使沮丧castdown
2，赞成，支持infavorof
3，反对objectto
4，一定；注定beboundto
5，不时fromtimetotime
6，使复生bringbacktolife
7，在另一方面ontheotherhand
8，把…建立在…基础上baseon
9，值得做某事beworthdoingsth
10，通过（方式）bymeansof
11,一直，总是allthetime

语法练习答案
Exercise1:
1.What---that2.publicthat3.why----that4.that-----what5.that-----why6.that----what7.requiredthat8.that----whether9.was-----be10.that----what
Exercise2:1-----10BABACCDAAA
Exercise3:1------10CDCABDBAAD

高二英语教案：《Unit 2 Cloning. 克隆》教学设计（二）

Unit 2 Cloning

Step I Lead-in

This topic is difficult for students. So teacher should help the students learn more about it. Do this in the way of asking and answering questions.

T: You can imagine how rapidly the modern science and technology develop. I think most of you must know something about space traveling, submarine exploration, robot, maglev train, gene engineering etc. But in recent years, a hot topic, cloning is often mentioned, especially when the cloning Dolly the sheep appeared. You may have first heard of cloning when Dolly the Sheep showed up on the scene in 1997. Cloning technologies have been around for much longer than Dolly, though. First things first, what is cloning and a clone? The dictionary says cloning is the technique of producing a genetically identical duplicate of an organism. A clone is said to be all descendants derived asexually from a single individual, as by cuttings, bulbs, by fission, by mitosis, or by parthenogenesis reproduction. It sounds very different and complicated to us. In fact, I mean, in our daily life, this happens often. For example, gardeners take cuttings from growing plants to make new ones. You often see that your mother picks a small branch from a growing plant to make a new one. If she likes this kind of flowers, she can do cloning. Cloning also happens in animals or human beings when twins identical in sex and appearance are produced from the same original egg. The fact is that cloning plants is straightforward but the cloning of animals is more complicated. The possibility of human cloning, raised when Scottish scientists at Roslin Institute created the much-celebrated sheep "Dolly", aroused worldwide interest and concern because of its scientific and ethical implications. You can give your questions if you are interested in this topic. I am here today one of the scientists who work in this field. I am ready to answer any of your questions.

S: Now we know what is cloning. Are there different types of cloning?

T: When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning. There are different types of cloning however, and cloning technologies can be used for other purposes besides producing the genetic twin of another organism. A basic understanding of the different types of cloning is key to taking an informed stance on current public policy issues and making the best possible personal decisions. The following three types of cloning technologies will be discussed: (1) recombinant DNA technology or DNA cloning, (2) reproductive cloning, and (3) therapeutic cloning.

S: Was Dolly created by what cloning? And why was Dolly so important?

T: Reproductive cloning is a technology used to generate an animal that has the same nuclear DNA as another currently or previously existing animal. Dolly was created by reproductive cloning technology. She was the first mammal to be cloned from adult DNA taken from an adult cell. Previously, animals had only been cloned using embryo cells which already have the potential to become a complete embryo in its own right. The big breakthrough with Dolly was to make a clone from an ordinary, adult cell ? in this case from a female goat’s udder.

S: Have you seen Jurassic Park? In this feature film, scientists use DNA preserved for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and fiercer than expected. Could we really clone dinosaurs.

T: In theory? Yes. What would you need to do this? A well-preserved source of DNA from the extinct dinosaur, and a could serve as a surrogate mother. In reality? Probably not. It’s not likely that dinosaur DNA could survive undamaged for such a long time. However, scientists have tried to clone species that became extinct more recently, using DNA from well-preserved tissue samples.

More questions about cloning are given in the appendix. The information above is for reference only. Or you can choose several students and ask them to act out a short play whose main topic is as follows:

An old man who was dying left all his fortune to his own son. But the did not know that his son was cloned. So two same young men both claimed that they were the old man’s son. They quarreled and fought with each other; at last they went to the judge. The judge let them check DNA. The result was that their DNA was the same. Now even the judge did not know what to do.

In this part the teacher can give the students some advice to act out. According to this play teacher ask the students several questions:

1. Do you want to be cloned or not? Why?

2. If you are the judge what will you do?

3. Can you tell me the advantages of cloning?

4. And what is the disadvantage?

Discussion

In this part the students will discuss the relationship between the development of technology and social customs.

T: As the technology develops day by day, it has a more and more important influence on the whole society. Technology affects social customs and ethics, sometimes technology may go against the conventional thinking, then comes the problem that whether we should stop the development of research or change the ethics.

S1: As technology develops in almost every field, a lot of our original customs and ethics changed, either because they are out of time or not so scientific. For example millions of years ago human ate meat of animals without heating them. Later people used fire and no longer ate raw meat and they also used fire to scare dangerous animals.

S2: I think we could not stop the development of technology, for it may develop in the way which is acceptable by social customs.

…

Look at pictures

T: Look at the pictures and discuss which ones are natural clones and which ones are man – made. Then explain how they differ.

S: I think the twins are natural clones and the Dolly sheep is man-made.

T: You are right! Can you explain how they differ?

S: The twins were born at the same time, but the Dolly sheep is man-made.

T: Anything else? Who want have a try?

S: I think the identical dog is man-made.

T: Good Job

Step II Pre-reading

Before class, ask the students to search for some information about this topic. Now show your questions on the screen, and then let them discuss with each other.

T: Now please work in pairs and discuss about cloning. Then list the questions you want to find out. Share your list with your partner.

Ss: Yes, sir / madam.

Questions about cloning:

1. What is a clone?

2. How is a clone produced?

3. What benefits can humans gain from cloning?

4. What problems may arise when humans are cloned?

5. Should we clone human?

6. Could cloning replace sex as the means of creating new human life?

7. Could a parent clone a child who is dying of a terminal illness?

After a few minutes.

T: Do you have other questions? Volunteer!

S: I have! What is the writer’s opinion?

T: Good job! I think many of you have questions, now let us read the article with the questions.

Suggest answers:

1. It is a way of making an exact copy of another animal and plant.

2. This happens in plants when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and gown in a laboratory. It also happens in animals when twins identical in sex and appearance are produced from the same original egg.

3. It can help cure disease and can help couples who have no baby to bear a new baby.

4. There may be more bad people like Hitler.

5. In my opinion, I do not agree, for it may cause many moral problems.

6. No. Because cloned human has the same quality as the real human, natural born baby’s quality is higher than his parents.

7. No. The cloned baby also has the disease.

Step III While- reading

Get the students to comprehend the passage quickly and accurately and meanwhile help the students form a good habit of reading.

T: Have you not the answers of your questions? Now please skim the passage fast to obtain a general understanding of the whole passage into several parts and find out the main idea of each part.

Show the following.

Para. 1 Cloning is a way of making an exact copy of another animal and plant.

Para. 2 Cloning has two major uses.

Para. 3 The problems of Dolly.

Para. 4 The effect of Dolly.

Para. 5 It is forbidden to clone human being.

Step IV Post-reading

Ask the students to read the passage again to finish three tasks.

T: Now let’s listen to the. While listening, pay more attention to the correct pronunciation and tone. Then read the text by yourselves to get the answers to the three tasks. You can work in groups.

T: First, What are the problems or dangers of cloning?

S: Let me have a try! First, the cloned animals have the same illness of old animals and the same goes with the other species. Second, the cloned animals have short life and can cause moral questions.

T: You are right! And what are the advantages of cloning?

S: I know! Firstly, gardeners use it all the time to produce commercial quantities of plants.

Secondly, it is valuable for research on new plant species and for medical research on animals. Thirdly, it suddenly opens everyone’s eyes to the possibility of using cloning to cure serious illnesses, and even producing human beings.

T: What is the writer’s opinion? What do you think is the writer’s point of view in this reading passage? Is it in favour of cloning or against is?

S1: I think the writer is in favour of it, because there are many advantages of cloning. It can help people solve many problems in our daily life.

S2: I think the writer doesn’t agree with it, because if the cloning technology can be used in an evil way, it can cause much trouble to our society.

T: The next question: What is your opinion of cloning? Give the reasons.

S1: As a coin has two sides, everything has two aspects. First, if the cloning is used in a correct way it can bring many conveniences to us. Such as: curing serious illnesses and being used to produce commercial qualities of plants. On the other hand, if the cloning is used in an evil way it can cause much troubles: such as moral questions.

S2: My view on cloning and nuclear transfer is that it is ethical. So actually I find no reason to clone presently. I have this opinion currently, because scientists are unable to successfully clone using nuclear transfer as of today.

S3: I also have a problem with the possible effects of using nuclear transfer on a large scale. This is because I fear that cloning could greatly reduce genetic diversity. I believe if we were to interfere with the genetic diversity of an entire population we would undoubtedly fail.

S4: As you can see I believe cloning using nuclear transfer should not be used on humans for any reason. I think if we were to use cloning it should be closely monitored as to what dangers are involved in having copies of people. I also think this technology should not be used until success.

S5: I agree that we should develop cloning. I’m not afraid of cloning Hitlers or excited to clone Einsteins. I would say the time and the environment produced Hitler, not his DNA. So you do not need DNA from Hitler to produce a Hitler. In fact, there are Nazis already present. We should make use of cloning to benefit future generations. You can imagine that how happy the people are if they can recover from the serious illness or get back the son who has just lost his life in an accident by cloning.

T: Good job! Yes, if we our human beings use the scientific technology properly it can bring many advantages to us!

S: Why did Dolly’s appearance raise a storm of objections and have a great impact on the media and public imagination?

T: Because nothing really prepared the world for the 1997 announcement that a group of Scottish scientists had created a cloned sheep named Dolly. Many folks believe that within the next decade, we will hear a more shocking announcement of the first cloned human. Scientists in South Korea have already created human embryonic stem cells through cloning. Until now, the idea of human cloning has only been possible through movie magic, but the natural progression of science is making human cloning a true possibility. We’ve cloned sheep, mice and cows, so why not humans? Some countries have set up laws banning cloning, but it is still legal in many countries. Imagine using a piece of your great-grandmother. This opens the door to many ethical problems, but it’s a door that could soon be opened.

S: So what happens next?

T: Whatever the reasons, the new cloning technologies have sparked many ethical debates among scientists, politicians and the general public. Several governments have considered or enacted legislation to slow down, limit or ban cloning experiments outright. It is clear that cloning will be a part of our lives in the future, but the course of this technology has yet to be determined. Cloning could cause birth defects, but it’s not going to change society. In the absence of any legislation or regulation, cloning attempts will quietly continue. Eventually, cloning will succeed (if it hasn’t happened already), and humankind will have taken another step down the road of biological engineering. You should study hard today, and you will be able to face this difficult problem and know how to deal with it.

Explanation

T: Now let’s deal with some language points. Turn to page 11. Let’s look at the sentence: It is a way of making an exact copy of another animal and plant. 全句汉语意思:它是一种精确复制另一个动物或植物的方式。Here a way of means a manner of 一种……的方式。

T: Turn to page 12. Look at the 8th line. Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination. In this sentence, raise means lead. (引起/导致)。全句意思是：多利的出现引起一场反对风暴，并且对媒体和公众思想产生了很大的冲击。

T: Turn to page 12. Look at the sentence: However, scientists still wonder whether cloning will help or harm us and where it is leading us. “whether cloning will help or harm us”, “where it is leading us” is the objects of the word “wonder” 全句意思是：科学家一直致力于研究克隆到底会有助于我们还是会伤害我们，它们将我们引向何方。

Step V Homework

Ask the students to do the following.

1. Complete the exercises on page 13.

2. Recite the key sentences in the text.

3. What is Cloning? You might not believe it, but there are human clones among us right now. Have you ever wished you could have a clone of yourself to do homework while you hit the skate park or went out with your friends? Imagine if you could really do that. Where would you start?

高二英语教案：《Unit 2 Cloning. 克隆》教学设计（一）

Ｉ．单元教学目标

技能目标goals

talk about cloning

practice expressing and supporting an opinion

use the appositive clause

write a composition about cloning

Ⅱ.目标语言

功能句式

expressing and supporting an opinion

i’m happy to accept …. but….

i would never accept….

i’m not bothered about…..

i don’t mind but….

i hope you’ll carry on….

are you sure you want to….

i agree with you that….

is it fair to….?

do you think it is wise to….?

i think you should….

well done to you for….

i don’t understand why you don’t….

i can’t help thinking….

i could never agree to….

III. 教材分析与教材重组

1. 教材分析

本单元以Cloning为话题，旨在通过单元教学，使学生了解克隆技术的优缺点，学会表达和支持个人观点，能用所学的有关Cloning的词汇去表述自己对这一新技术的观点和看法。 1.1 Warming Up 提供了四幅有关Dolly the sheep(多莉羊) A strawberry plant(草莓植物) Twins（双胞胎婴儿） Identical dogs(克隆狗)的图片，让学生用已有的知识和经验讨论对克隆技术的看法与观点。

1.2 Listening是关于人类克隆的听力材料，难度中等。

1.3 Speaking 根据材料，四人小组合作，要求把自己对克隆婴儿的态度和感觉用相关的语言表达出来。语言要得体，锻炼语段表达能力。

1.4 Pre-reading是Reading的热身活动。它要求采用与同学讨论交流的方式谈论有关克隆的相关知识。

1.5 Reading是一篇介绍克隆技术的说明文。

1.6 Comprehending第一题所给出的表格让学生根据课文内容列举克隆技术的优缺点。第二题让学生根据所拥有的知识来评价作者的观点。第三题要求学生用自己的语言阐述对克隆技术的观点并给出理由。

1.7 Learning about Language 分词汇和语法两部分，其中Discovering useful words and expressions 是根据语境在运用中掌握词汇。Discovering useful structures 是通过阅读和补全句子来练习。

1.8 Using Language中的Reading，Discussing and writing要求学生先读, 然后完成四个任务型的作业。即 1. 讨论并回答三个问题。回答这些问题，2. 讨论几种已经灭绝的动物，并且讨论哪种动物应该被恢复到这个世界上，并且给出理由。3. listening and speaking 让学生根据所听到的内容选择并列出文中人物观点。

2. 教材重组

2.1 从话题内容上分析，Warming Up 与Reading相一致；而从训练目的上分析与TALKING比较一致。从教材份量来说，可将Warming Up和Reading整合在一起，设计成一节任务型“阅读课（一）（精读课）”。

2.2 将Listening 和Workbook中的LISTENING整合在一起，设计成一节 "听力课"。

2.3 将Using Language 与Workbook中的TALKING和SPEAKING TASK 结合在一起，设计成一节“口语课”

2.4将Learning about Language 与Workbook中的USING WORDS AND EXPRESSION整合在一起上一节“语法课”。

2.5将Workbook中的READING TASK 和PROJECT以及WRITING TASK整合成一节“泛读与写作课”。

3. 课型设计与课时分配

1st period Reading

2nd period Listening

3rd period Speaking

4th period Grammar

5th period Extensive reading and writing

Ⅳ. 分课时教案

The First Period Reading

Teaching goals教学目标

1. Target language目标语言

a. 重点词汇和短语

clone，commercial，producer，undertake，arbitrary，object，forbid，accumulate，cast down，object to，the media，in favour of

b. 重点句子

It is a way of….

The fact is that….

The question that occurred is….

2. Ability goals能力目标

Enable the students to describe cloning: What is the advantages of cloning？ What is the problems or dangers of cloning？What is your opinion of cloning？

3. Learning ability goals 学能目标

Help the students learn how to describe cloning.

Teaching important points 教学重点

How to describe cloning.

Teaching difficult point 教学难点

Help the students analyze the writing techniques of the article.

Teaching methods 教学方法

Skimming, task-based method and debate method.

Teaching aids 教具准备

A recorder, a projector and some slides.

Teaching procedures & ways教学过程与方式

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