人教新课标版高二选修8+unit2+cloning-reading+ppt课件1

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1、Unit2CloningDollythesheepanditsbabyThefollowingstatementsareaboutcloninganddecideTorF1.Cloningmeansmakingacopyofananimaloraplant.2.Gardenerscanmakealotofmoneybycloningplants3.Cloninganimalsisascomplicatedascloningplants.4.Dollythesheepwasthefirstsuccessfulcloneofamammal.5.Naturalc

2、loneshappeninanimalswellasinplants.FFTTTQuiz:Mainideasofthefiveparagraphs?Para1:What’scloning?(ItisawayofmakinganexactcopyofanotheranimalandplantPara2:Cloninghastwomajoruses.Para3:TheproblemsofDolly.Para4:TheeffectofDolly.Para5:Itisforbiddentoclonehumanbeing.Readingcomprehending1.

3、Dollythesheep_______A.Lookedexactlylikethesheepthatprovidestheegg.B.Wastheexactcopyofthesheepthatprovidesthenucleus.C.Lookedlikethesheepthatgavebirthtoit.D.Hadthecharacteristicsofallthreesheep.‘’Reading:2.Itcanbeinferredfromthepassagethataclonedanimal______A.Usuallylivesaslongasth

4、eoriginalone.B.Usuallyliveslongerthantheoriginalone.C.Usuallydiesearlierthantheoriginalone.D.Isusuallyashealthyastheoriginalone.3.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurpose.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanim

5、alsfrombecomingextinct.D.Famouspersonswhohavepassedawaycanbecloned.4.What’speople’fearabouthumancloning?Whichoneiswrong?A.ClonedHitlerswoulddoharmtotheworld.B.Clonedpeoplemaybekilledatwillformedicalaid.C.Awomanwouldhavedifficultyrecognizingherrealhusband.D.Menwilldieoutbecauseawom

6、ancangivebirthtoababywithoutahusband.CarefullyReadingFinishtheexercisesonP12Problemsordangersofcloning1.Animalclonesmaydeveloptheillnessesofolderanimals.2.Animalclonesmaydieyoungerthanthedonoranimals.3.Evilleadersmaywanttoclonethemselves.4.Therearemoralobjectionstocloninghumanbein

7、gs.AdvantagesofcloningMedicalcloningcouldproducecuresforseriousillnessesinhumans.2.Cloningplantscanproduceplantsofsimilarqualityforsale.3.Cloningplantscanbeusefulforresearchonnewplantspecies.4.Cloningcanhelpsaveendangeredanimals.Q2；thewriter’spointofviewoncloningIthinkthewriterisi

8、mpartialbecausehe/shedoesn’tstate