人教选修8-Unit-2Warming-up-and-Reading课件

Unit2Cloning

Cloning:Whereisitleadingusram公羊antelope羚羊sheepgoatSymbolanimalDollythesheepwasac_________animalwhiletheotheranimalsarebornn________.lonedaturallytheoriginalplanttherunneroftheoriginaloneAnaturalcloneisonethatoccursinanaturalformofcloningw______humanhelp.

Whatisanaturalclone?ithoutWhocutit?Aman-madecloneisonethatisproduced_______humanhelp.Whatisaman-madeclone?withArewenaturalorman-madeclone?Thetwinsonthescreenareidenticalinsexand____________.Theyaregoodexamplesof______clone.appearancenaturalAcloneisan________ora________producednaturallyor___________fromthecellsofanotheranimalorplantandisexactlythe_______astheoriginal.Whatisaclone?artificiallysameanimalplant199620002001200320051998TibetanMastiff藏獒2014Isitpossibletoclonemyself?Cloning:Whereisitleadingus?Themainideaofthetextis____.A.ThebirthofDollyrepresentedthegreatdevelopmentofanimalcloning.B.Animalcloningcouldbemisusedbyevilleaderstoclonethemselves.C.AnimalcloninghasraisedargumentsandscientistsarenotsureaboutitsfutureD.Animalcloningissovaluablethatitdeservesgreateffortsofthescientists.ReadingformainideaReadingformainideaPara1Cloningisawayofmakinganexactcopyofanotheranimalorplant.Para2Cloninghastwomajoruses.ReadingformainideaPara3TheproblemofDollyPara4TheimpactofDollyPara5People’sreactionProblemsordangersofcloningAdvantagesofcloningReadingfordetailsProblemsordangersofcloningAnimalclonesmaydeveloptheillnessesofolderanimals.Animalclonesmaydieyoungerthanthedonoranimals.ReadingfordetailsEvilleadersmaywanttoclonethemselves.Thereare_________questionstowardscloning.moralAdvantagesofcloningCloningcanhelpsaveendangeredanimalsandperhapsbringsbacktheextinctanimal.Medicalcloningcouldproducecuresforseriousillnessesinhumans.ReadingfordetailsCloningplantscanproduceplantsofcommercialquality.Cloningplantscanbeusefulforresearchonnewplantspecies.Identical(Line3)Straightforward(Line7)Undertake(Line8)Paidoff(Line9)Procedure(Line10)Castdown(Line13)Altogether(Line14)Attain(Line23)Accumulate(Line26)Readingforwordssamesimplesucceedstagefrustratedtotally;inallachievecollectperformTheword“controversial”(Line20)inPara4probablymeans:____________.A.complicatedB.arguableC.conservativeD.arbitraryReadingforwords

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