大学英语听说教程第三册UNIT-8.ppt

Unit8TroublingoverGeneticDoubling

Listening：listenandunderstandthemainideaofthepassageSpeaking:beabletoretellthemainideaofthepassageorthestory.TeachingObjectives

Leading-inIntensiveListeningPracticeSupplementaryListeningTeachingContentsExtensiveListeningPractice

Leading-in:SomeinformationaboutanimalcloningDolly(aclonedsheep)OnJuly5th,1996,the1stclonedmammalDollywasborninBritain.

ClonedPigswereborn.

In1998,fiftyclonedmicewereborninHawaiiintheUS.

In1998,aclonedoxwasborn.

OnJan.13,2000,the1stclonedmonkey—TetrawasbornintheUS.

Leading-in:ListeningandSpeakingonPage123Nowyouwillhearapassage.Takenoteswhilelisteningandthenuseyournotestofinishthetasks.Task1:Fillinthefollowingtableaccordingtowhatyouhear.ReasonsforcloningReasonsagainstcloning1.Itallowspeopletolivelonger.2.Itgiveschildrentoinfertilecouples.1.Itisexpensive2.Itisinefficient.3.Itcancreatearaceofpeopletocompetewithordinaryhumans.

MorequestionsondetailsListentothepassageagainandanswerthefollowingquestions.Howdosomepeopleviewhumancloning?Whatwillhappenifgovernmentsinvestmoremoneyincloninghuman?Whatwillbetheresultoffailedattemptsathumancloning?

Leading-in—Areyoufororagainsthumancloning?

Listatleastthreereasons.

fightfataldiseasessavedyingrelativeshelpinfertilepeoplehavechildrencreategeniusextendhumanlifecreatenewimmunesystems(免疫系统)groworgansandtissuesfortransplantsurgery(移植手术)Tips

denyhumanrightsreducevarietyofhumangenepoolunsafebirthdefectsashorterlifereligiousobjectionspsychologicalharmsdegradethequalityofparentingandfamilylife

ExtensiveListeningPractice:

ShortConversationsonPage1151.2.3.4.5.6.7.8.9.10.Keys:BDCAAACCAB

IntensiveListeni