人教新课标版高二选修8 Unit2 Cloning-Reading ppt课件2

ReadingDollyDollythesheepHowdoesDollydifferfromothersheep?Shewasclonedwhiletheotherswerebornnaturally.Dollywasa______sheep.bedifferentfromclonedCloningisawayofmakinganexactcopyofanotheranimalandplant.Whatiscloning?Ithappensbothin______andin_______.Theycanbeclonedby________and_______.plantsanimalsthemselveshumansNaturalcloneMan-madecloneThedefinitionofcloning1.Howmanymajorusesdocloninghave?Firstly,…commercial…Secondly,…research…2.Howmanyfemalesheepparticipateinthecloningofanewsheep?Para23ThemajorusesandproceduresofcloningAtfirst,thefactthatDollydeveloped______and_________producedalambinanaturalwaywas__________.Later,thenews_____shelivedforsixyears,halfthelengthofthelifeofthe______onewas__________.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives_____________theoriginalone.Para3aslongas/shorterthan/longerthanTheproblemsofDollyTheword“controversial”inpara4probablymeans____________.A.complicatedB.arguableC.importantPara4TheimpactofDollyTrueorfalse:1PeoplefearedthatClonedHitlerswoulddoharmtotheworld.2Alltheresearchintohumanbeingswillbeforbidden.3Somecountrieswillusecloninginawiseway.Para5People’sreactiontocloningManygovernmentsforbaderesearchreserchintohumanbeings.A.Positive(beinfavorofit)B.Negative(beagainstit)C.ObjectiveThewriter’sreactiontowardscloning1.Themainideaofthetextis____A.animalcloningisveryvaluableandcanbenefittheworld.B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden.C.animalcloningiswelldevelopedbecauseDollythesheepwasborn.D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.Choosetherightansweraccordingtothetext.2.Dollythesheep_____.A.lookedexactlylikethesheepthatprovidestheegg.B.wastheexactcopyofthesheepthatprovidesthenucleus.C.lookedlikethesheepthatgavebirthtoit.D.hadthecharacteristicsofallthreesheep.3.Itcanbeinferredfromthepassagethataclonedanimal_____.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallylivesshorterthantheoriginaloneD.isusuallyashealthyastheoriginalone4.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurposes.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanimalsfrombecomingextinct.D.Peoplecanclonethemselvesatwill.5.Whatispeople’sfearabouthumancloning?Whichofthefollowingiswrong?A.ClonedHitlerswoulddoharmtotheworld.B.Clonedpeoplemaybekilledatwillformedicalaid.C.Awomanwouldhavedifficultyrecognizingherrealhusband.D.Menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.6.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailed7.ThelambisthecloneofthecellfromsheepBbecause_____.A.itprovidestheeggcellB.itgivesbirthtothelambC.itprovidesthenucleusD.itisafemalesheep8.WhichofthefollowingstatementsaboutcloningisNottrueaccordingtothetext?A.Cloningissomethingthathasbeendevelopedquiterecently.B.Twinsthatlookexactlythesameareoriginallyfromthesameegg.C.Cloningisusedbyresearcherstodevelopnewplants.D.Animalcloningismuchmoredifficultthanplantcloning.