高二英语 unit2 reading课件选修8.ppt

cloning reading dolly dollythesheep howdoesdollydifferfromothersheep shewasclonedwhiletheotherswerebornnaturally dollywasa sheep bedifferentfrom cloned clone cloningisawayofmakinganexactcopyofanotheranimalandplant whatiscloning ithappensbothin andin theycanbeclonedby and plants animals themselves humans naturalclone man madeclone thedefinitionofcloning 1 howmanymajorusesdocloninghave firstly commercial secondly research 2 howmanyfemalesheepparticipateinthecloningofanewsheep para2 3 themajorusesandproceduresofcloning atfirst thefactthatdollydeveloped and producedalambinanaturalwaywas later thenews shelivedforsixyears halfthelengthofthelifeofthe onewas finally theproblemthatoccurredtothescientistswasthataclonedanimallives theoriginalone para3 aslongas shorterthan longerthan theproblemsofdolly theword controversial inpara4probablymeans a complicatedb arguablec important para4 theimpactofdolly trueorfalse 1peoplefearedthatclonedhitlerswoulddoharmtotheworld 2alltheresearchintohumanbeingswillbeforbidden 3somecountrieswillusecloninginawiseway para5 people sreactiontocloning manygovernmentsforbaderesearchreserchintohumanbeings a positive beinfavorofit b negative beagainstit c objective thewriter sreactiontowardscloning 1 themainideaofthetextis a animalcloningisveryvaluableandcanbenefittheworld b animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden c animalcloningiswelldevelopedbecausedollythesheepwasborn d animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture choosetherightansweraccordingtothetext 2 dollythesheep lookedexactlylikethesheepthatprovidestheegg wastheexactcopyofthesheepthatprovidesthenucleus c lookedlikethesheepthatgavebirthtoit d hadthecharacteristicsofallthreesheep 3 itcanbeinferredfromthepassagethataclonedanimal a usuallylivesaslongastheoriginaloneb usuallyliveslongerthantheoriginalonec usuallylivesshorterthantheoriginaloned isusuallyashealthyastheoriginalone 4 whichofthefollowingisnotanadvantageofcloning cloningcanbeusedformedicalpurposes largequantitiesoffoodcanbeproducedbycloning cloningcanhelpkeepanimalsfrombecomingextinct peoplecanclonethemselvesatwill 5 whatispeople sfearabouthumancloning whichofthefollowingiswrong clonedhitlerswoulddoharmtotheworld clonedpeoplemaybekilledatwillformedicalaid awomanwouldhavedifficultyrecognizingherrealhusband menwilldieoutbecauseawomancangivebirthtoababywithoutahusband 6 thecloningofdollythesheepsucceededbecause a itseasiertocloneasheepthanotheranimalsb thescientistsweredeterminedandworkedhardwithpatiencec thescientistswererewardedandgotlotsofmoneyd manyotherattemptstoclonemammalsfailed 7 thelambisthecloneofthecellfromsheepbbecause a itprovidestheeggcellb itgivesbirthtothelambc itprovidesthenucleusd itisafemalesheep 8 whichofthefollowingstatementsaboutcloningisnottrueaccordingtothetext cloningissomethingthathasbeendevelopedquiterecently b twi