Unit 2 Cloning 教案4（人教版高中英语选修八)8页

Unit2Cloning高中英语课程目标八级语言技能目标节选：1.能抓住一般语段中的观点；2.能通过分析句子结构理解难句和长句；3.能根据学习任务的需要从多种媒体中获取信息并进行加工处理；4.能写出语意连贯且结构完整的短文，学习目标1．阅读课文，进一步理解和掌握课文结构。2．掌握课文中的重点短语和句型。3．学会运用短语和句式。【预习案】I.阅读文章，回答下列问题。Para1：ThedefinitionofcloningWhatiscloning?Cloningismakinganofanotheranimalandplant.Para2：Themajorusesandproceduresofcloning1.Howmanymajorusesdocloninghave?Firstly,Secondly,2.WhenwasthecloningofDollythesheepborn?Para3：TheproblemsofDolly1.Atfirst,thefactthatDollydeveloped______inanaturalwaywas__________.2.Later,thenews_____shelivedforsixyears,halfthelengthofthelifeofthe______onewas__________.3.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives____________theoriginalone.Para4:TheimpactofDolly二次备课（教师）学习补充及疑惑（学生） Theword“controversial”inparagraph4probablymeans____________.A.complicatedB.arguableC.importantPara5:People’sreactiontocloningTask1:Trueorfalse:1.PeoplefearedthatClonedHitlerswoulddoharmtotheworld.2.Alltheresearchintohumanbeingswillbeforbidden.3.Somecountrieswillusecloninginawiseway.Task2:Thewriter’sattitudetowardscloningA.Objective(befair)B.Negative(beagainstit)C.Positive(beinfavorofit)II.课文短语：1.做……的方法________________2.一直________________3.大量的________________4.尝试做某事________________5.得到回报______________6.准备做某事________________7.一方面，另一方面________________8.使失望，沮丧________________9.例如____________10.对……产生影响________________11.打开人们的眼界________________12.治愈疾病________________13.实现某人的野心________________14.改革司法制度________________15.继续做某事________________16.适合于……17.目前【探究案】一、检查反馈，导入新课。____________________________________________________________________________________________________________________ 二、目标定位，确定重点。1.了解掌握本篇课文中的重难点语法知识。2.学会用这些句式做一些简单的句子。三、自主探究，教师点拨。1.Whatproblemsmayarisewhenhumansarecloned？(P10)克隆人会引发什么问题呢？Ontheotherhand,Dolly’sappearanceraisedastormofobjections…L19Religiousleadersalsoraisedmoralquestions.L24【词语辨析】arise;rise;raise(1)arise不及物动词，指“出现；发生；起立;上升”,是一种庄严的用语。(2)rise不及物动词,“上升，升高，耸起”之意，表示事物本身由低处移到高处,又引申为“起床，起立，发生，发源”等意义。(3)raise及物动词，“抬起，举起，升起”表示把某物从低处抬到高处，有时指“提高价值、名誉、地位、工资”等,又可作“抚养，饲养”解。【词语运用】用ariseriseraise填空。(1)Thechildren_____________fromtheirseats.(2)Weknowthesunalways____________intheeast.(3)TheChinesewomen_____________totheirfeet.(4)Themanager_____________theworkerssalary.(5)Manyunexpecteddifficulties_____________.(6)Anewfinancialcrisis(金融危机)_____________.2.ThencamethedisturbingnewsthatDollyhadbecomeseriouslyill.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.3.CloningscientistswerecastdowntofindthatDolly’sillnessweremoreappropriatetoamucholderanimal. castdown：feelingunhappyanddepressed使沮丧,低沉，使下降,推翻becastdown=feeldiscouraged即时练习：Hewasmuchcastdownbythefailureoftheexperiment.4.Governmentsbecamenervousandmanyforbaderesearchintohumancloning.各国政府恐慌不安,有许多政府命令禁止克隆人类的研究。forbidvt.禁止，不准，不许forbade/forbad,forbidden,forbiddingforbidsth./doingsth./sb.todosth./sb.(from)doingsth./that…即时练习：公共场所应禁止吸烟。inpublicplacesHerfatherforbidherwine.=四、尝试演练，合作解疑。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。_____________________________________.(3)学校禁止学生吸烟。_______________________.(4)他被禁止进入这个房间_______________.五、课堂小结，布置作业。做练习册知识点的练习题和课后巩固案。【课后巩固案】单项填空1．Afterquestioningthemanforsixhours，thepolice_______theinformationtheywanted.A．seized　　B．recoveredC．appealedD．obtained2．Mypersistencefinally________whentheycalledmeinforaninterview.A．paidbackB．paidupC．paidoffD．paidfor3．Agoodideacametoher________shecouldlivewithherbestfriend inthatcityduringtheholiday.A．ifB．whenC．thatD．which4．Thesuggestiontheyallobjectedto____tobeeffectivefinally.A．provingB．proveC．hadprovedD．proved5．Thestudentsareforbidden，________after11p．m..A．instayingoutB．tostayoutC．stayingoutD．stayout6．Hesoonrealizedthatthetaskhehad________wasbeyondhim.A．undertakenB．workedC．contributedD．made7．I________ittomyteachertotakeabetterpaidpostifIcangetone.A．oweB．belongC．giveD．donate8．ItisclearthatifwereadEnglisharticleeveryday，we________improveourEnglish.A．areboundedtoB．areboundtoC．boundD．boundto9．Shealwaysdiffers____herdaughter_____howtospendthevacation.A.on;withB.with;onC.at;withD.from;in10．Scientistshavemadea________inthesearchforacureforcancer.A．expectationB．breakthroughC．regulationD．procedure11．Iam________yoursuggestion________weshouldspendmoretimeonthisproject.A．infavourof；whichB．inhonorof；thatC．infavourof；thatD．inhonorof；which12．Johnwas________tolearnthenewsthathewasrejectedbythecommittee.A．castdownB．castoffC．castaboutD．castaway13．Itisvery____thattherehasbeenanincreaseincrimeinthelastsixmonths.A.disturbedB.disturbingC.disturbD.beingdisturbed14．Theystronglyobjectto____theplan.A.givingupB.giveupC.givingoffD.giveoff15．Don’t________yourfatheraboutitnow；heisverytired.A．careB．botherC．setD．get16.Hewas_____bysomany____matters.A.disturbed;disturbedB.disturbing;disturbingC.disturbed;disturbingD.disturbing;disturbed17.Don’tbeso______.Justkeepupyourspirits.A.castdownB.putdownC.turneddownD.takendown 18.Attheconferencehewasforbidden_____thesubjectagain.A.mentioning      B.tomention  C.mention       D.mentioned19.---Mum,haveyou_____theshoes?---ofcourse,Baoby!A.paidbackB.paidoffC.paidforD.paidin20.It’saboutseveno’clcoknow,_____,it’sseventhree.A.tobeexactB.tobehonestC.totellthetruthD.generallyspeaking21.Greatchangeshave______inYan’antheseyears.A.takenplaceB.happenedC.comeaboutD.occurred]22.I’mverybusynow.Don’t_____me.A.damageB.botherC.forbidD.cheat23.Ifyoureadfasteveryday,you_____improveyourEnglishlevel.A.areboundtoB.areboundedtoC.boundD.boundto24.Hecan’tresist____whenheseessuchastrangeperson.A.toburstintotearsB.burstintotearsC.burstingintotearsD.beingburstintotears25.I’mnottryingtocriticizeyou;I’m____tryingtofindouthowtheaccidenthappened.A.merelyB.completelyC.hardlyD.normally26.AllenandIareinthesamehistoryclass,buthisassignmentdiffers_____mine.A.onB.fromC.inD.to27.Sinceheheardofhisfailureattheexamination,Tomhasbeenvery_______.A.castdownB.putdownC.turneddownD.takendownICloningisawayofmakinganexactcopyofanotheranimalandplant.Firstly,…commercial… Secondly,…research…1996NormallyencouragingthatorginaldisturbingshorterthanA.arguableTFTAIIawayofdoingallthetimequantitiesofattempttodopayoffbereadyforontheonehand,ontheotherhandcastdownsuchashaveagreatimpactonopenone’seyescureillnessesattainone’sambitionreformlegalsystemsbeappropriatetoatpresent三1.另一方面，多莉羊的出现引起了一阵强烈的反对。宗教领袖也提出了道德方面的问题。(1)arose/rose(2)rises(3)havealreadyrisen(4)hasraised(5)havearisen(6)hasarisen2接着传来了多莉病重的坏消息。Disturbeddisturbdisturbingdisturbingdisturbed3研究克隆的科学家发现多莉得的病更容易发生的年老的羊身上，这让他们很沮丧。他因实验的失败而感到沮丧4Smokingshouldbeforbiddeninpublicplaces.•Herfatherforbidhertodrinkwine.【答案与解析】1．D　obtain获得；得到，本题指警方从审讯中获取了他们想要的信息，此处obtain可用get替代。2．C　payoff得到好结果，取得成功；根据题意知是“我”的坚持最终有了回报，故选C项。3．C　that引导的从句作agoodidea的同位语。if不能引导同位语从句；when与which引导名词性从句含有疑问意义，与题意不符。4．D　考查动词形式与句子结构的判断能力。句意为：他们都反对的建议最终证实是很有效的。句子的主语是Thesuggestion缺少谓语动词，故选D。 5．B　forbidsb.todosth.禁止某人做某事，为固定短语，此处为其被动结构。6．A　句意为：他很快就认识到，他所承担的任务是他力所不及的。undertakeatask表示“承担/从事任务或者工作”，其他选项搭配及意义均不正确。7．A　句意为：如果我能得到较好的职位，我应感激我的老师。owe...to...受……恩惠，感激……，符合语意要求。8．B　句意为：很显然，如果我们天天读英语文章的话，我们一定能提高英语的。beboundto的意思是“一定”。9.B10．B　makeabreakthrough作出突破性进展。11．C　本句意为“我很赞成你的建议那就是我们应该在这个工程上花费更多的时间”。infavourof赞成；inhonorof向……表示敬意；为纪念……。第二个空为that引导的同位语从句。12．A　castdown使沮丧；castoff扔掉；castabout设法寻找；castaway扔掉；抛弃。13．B　14．A15．B　bothersb.about...麻烦某人……。句意为：现在不要拿这个去麻烦你父亲，他很累了。16-27CABCAABACABA