大学英语听说教程第三册UNIT .ppt

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1、Unit8TroublingoverGeneticDoublingListening：listenandunderstandthemainideaofthepassageSpeaking:beabletoretellthemainideaofthepassageorthestory.TeachingObjectivesLeading-inIntensiveListeningPracticeSupplementaryListeningTeachingContentsExtensiveListeningPracticeLeading-in:Someinformationabo

2、utanimalcloningDolly(aclonedsheep)OnJuly5th,1996,the1stclonedmammalDollywasborninBritain.ClonedPigswereborn.In1998,fiftyclonedmicewereborninHawaiiintheUS.In1998,aclonedoxwasborn.OnJan.13,2000,the1stclonedmonkey—TetrawasbornintheUS.Leading-in:ListeningandSpeakingonPage123Nowyouwillhearapas

3、sage.Takenoteswhilelisteningandthenuseyournotestofinishthetasks.Task1:Fillinthefollowingtableaccordingtowhatyouhear.ReasonsforcloningReasonsagainstcloning1.Itallowspeopletolivelonger.2.Itgiveschildrentoinfertilecouples.1.Itisexpensive2.Itisinefficient.3.Itcancreatearaceofpeopletocompetewi

4、thordinaryhumans.MorequestionsondetailsListentothepassageagainandanswerthefollowingquestions.Howdosomepeopleviewhumancloning?Whatwillhappenifgovernmentsinvestmoremoneyincloninghuman?Whatwillbetheresultoffailedattemptsathumancloning?Leading-in—Areyoufororagainsthumancloning?Listatleastthre

5、ereasons.fightfataldiseasessavedyingrelativeshelpinfertilepeoplehavechildrencreategeniusextendhumanlifecreatenewimmunesystems(免疫系统)groworgansandtissuesfortransplantsurgery(移植手术)Tipsdenyhumanrightsreducevarietyofhumangenepoolunsafebirthdefectsashorterlifereligiousobjectionspsychologicalhar

6、msdegradethequalityofparentingandfamilylifeExtensiveListeningPractice:ShortConversationsonPage1151.2.3.4.5.6.7.8.9.10.Keys:BDCAAACCABIntensiveListeningPractice:LongConversationsonPage1151stlistening:Listentotheconversationcarefullyandchoosethebestanswer.Q1.Q2.Q3.Q4.Q5.Q1.Whatarethespeak

7、erstalkingabout?Q2.Whatistherelationshipbetweenthetwospeakers?Q3.Whymustapositionbedecideduponrightaway?Q4.Howdoesthewomanfeelabouttheman?Q5.Howdoesthemanfeelaboutinfertilecouples?2ndlistening:Listentotheconversationagainandtakesomenotesconcerningthequestions(Includ