高中英语 unit 2 cloning 听力原文练习 新人教版选修8

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1、UsingLanguageISCLONINGCRUEL?XiaoQing(XQ)andRachelBrown(RB)arediscussingwhethercloningiscrueltoanimalsornot.Listenagainandfillintheblanks.RB:XiaoQing,doyouthinkcloning’scruel?XQ:Whatdoyoumeanbythat?Thescientistsaredoingawonderfuljob.Soontheymaybeabletobringpeople’sfavouritepetsbacktolife!

2、RB:Yes,Iknow.Butdoesn’titseemcrueltoyouthatittook276experimentsbeforeDollywassuccessfullycloned?ThinkofallthoselivecellsandeggsthatdiedinorderforDollytobeborn.Idon’tapproveofthat!XQ:But,Rachel,bereasonable.Isn’titalwayslikethatwithanewscience?Thisisthewaypeoplelearntodothingsbetter.RB:Is

3、upposeso—buttheyalsomaketheanimalsdosuchunnaturalthings.Onepoorcowwasmadetogivebirthtoabison.Whatwasthepoorcreaturetothinkwhenitsawitsbaby?XQ:Idon’tquiteunderstandwhysomanypeopleareagainstcloning.Ithinkthescientistsneedabitofencouragement.Thinkofthebenefits.Cloningmayhelpmedicalscienceto

4、producecuresforseriousillnesses.RB:Yes,IknowandIagreewiththat.It’sjustthatIdon’tagreewiththemethods.XQ:Whynot?RB:Well,Ithinkit’sadeadend.Dollythesheepwas“middle-aged”whenshewasbornbecauseherDNAcamefromamiddle-aged“mother”.Cloningyourgrandmotherwouldmeananewbabystartedlifeasanoldlady!XQ:R

5、eally?Ineverthoughtofthat.RB:Anditweakensthespecies.Cloningmeansthatthere’slessvarietyinthespecies.Sotheanimalsmaynotbeabletoresistaparticularillnessandtheymightdieout.XQ:Ohdear!AndthatwasjustwhatyouandIweretryingtoavoid.Inspiteofallthese,don’tyouthinkscientistswouldstillbeabletosolvethe

6、problems?Workbook-ListeningISHUMANCLONINGAGOODIDEA?WangQiao(WQ)istalkingtoClarePeters(CP)abouthumancloning.Listenagainandfillintheblanks.WQ:Whatdoyouthinkabouthumancloning,Clare?CP:Idon’tknowwhattothink.ButIsupposeit’llcomeoneofthesedays.Ithinktherearemanyproblemsthatnobodyhasthoughtofye

7、t.WQ:Whatdoyoumeanbythat?CP:Well,aclonewillbeanexactcopyoftheoriginaldonor.Right?WQ:Yes,sowhat?CP:Well,what’stherelationshipbetweenthecloneandhisoriginaldonor?WQ:Isupposetheymustbelikeoneperson.Thecloneisthesameashisoriginaldonor.CP:Let’ssupposethatyoutakeababytoalaborato