高中英语 unit 2 cloning课件 新人教版选修8.ppt

unit2cloning cloningisawayofmakinganexact ofanotheranimalorplant whatiscloning copy whatisthedifferenceamongthem clone naturalcloneisonethatoccursinanaturalformofcloningwithouthumanhelp man madecloneisonethatproducedthroughhumanintervention 介入 dollythesheep shewasclonedwhiletheotherswerebornnaturally dollywasa sheep cloned howdoesdollydifferfromothersheep man madeclone skimthefollowingpassageandmatchtheparagraphwiththecorrectsentence para1a theproblemsofdollypara2b thetwomajorusesofcloningpara3c theattitudestowardscloningpara4d thedefinitionofcloningpara5e theeffectofcloninginsociety cloningisawayofmakinganexactcopyofanotheranimalandplant whatiscloning ithappensbothin andin theycanbeclonedby and plants animals themselves humans naturalclone man madeclone para1 thedefinitionofcloning 1 howmanymajorusesdocloninghave firstly commercial secondly research 2 whenwasthecloningofdollythesheepborn para2 1996 themajorusesandproceduresofcloning atfirst thefactthatdollydeveloped inanaturalwaywas later thenews shelivedforsixyears halfthelengthofthelifeofthe onewas finally theproblemthatoccurredtothescientistswasthataclonedanimallives theoriginalone para3 theproblemsofdolly normally encouraging orginal that aslongas shorterthan longerthan disturbing shorterthan theword controversial inparagraph4probablymeans a complicatedb arguablec important para4 theimpactofdolly trueorfalse 1peoplefearedthatclonedhitlerswoulddoharmtotheworld 2alltheresearchintohumanbeingswillbeforbidden 3somecountrieswillusecloninginawiseway para5 people sreactiontocloning manygovernmentsforbadereserchintohumanbeings theauthordoesnotstateanypersonalopinionaboutcloning a objective befair b negative beagainstit c positive beinfavorofit thewriter sattitudetowardscloning because theimportanteventsinanimalcloninghistory 2001cloningcattle 2003cloninghorse 2002cloningrabbits 2002cloningcats 1 themainideaofthetextis a animalcloningisveryvaluableandcanbenefittheworld b animalcloningiswelldevelopedbecausedollythesheepwasborn c animalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddend animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture 2 itcanbeinferredfromthepassagethataclonedanimal theoriginalone a usuallylivesaslongasb usuallyliveslongerthanc usuallydiesearlierthand isusuallyashealthyas 3 inthesecondparagraph theword straightforward means uncomplicatedhonestfrankdifficult 4 wecaninferfromthelastthreeparagraphsthat dolly sseriousdiseaseandfinaldeathdisturbedthewholeworld dollysuccessfullyclonedanewlambwiththehelpofcloningscientistthenormaldevelopmentofdollyhadnoeffectonthecloningofotherspeciestherewereargumentsaboutanimalcloningandconcernsaboutthefutureofcloning 5 whatisthewriter sattitudetowardcloninginthispassage thewriterisagainstcloning thewriterisinfavorofcloning thewriterisinagreementwithcloning thewriterdoesnotstateanypersonalopinionaboutcloning 6 dollythesheep a lookedexactlylikethesheepthatprovidestheeggb wastheexactcopyofthesheepthatprovidesthenucleusc lookedlikethesheepthatgavebirthtoitd hadthecharacteristicsofallthreesheep 7 thesheepthatdonatedthesomaticcellmostprobablylived years a 3b 6c 9d 13 8 whichofthefollowingisnotanadvantageofcloning cloningcanbeusedformedicinepurposes largequantitiesoffoodcanbeproducedbycloning cloningcanhelpkeepanimalsfrombecomingextinct famouspersonwhohavepassedawaycanbecloned 9 whichofthefollowingstatementsaboutcloningisnottrueaccordingtotext a cloningissomethingthathasbeendevelopedquiterecently b twinsthatlookexactlythesameareoriginallyfromthesameegg c cloningisusedbygardenerstomakemoremoney d animalcloningismuchmoredifficultthanplantcloning 10 thecloningofdollythesheepsucceededbecause a itseasiertocloneasheepthanotheranimalsb thescientistsweredeterminedandworkedhardwithpatiencec thescientistswererewardedandgotlotsofmoneyd manyotherattemptstoclonemammalsfailed thedeterminationandpatienceofthescientistswasrewarded paidoff trueoffalse fourfemalesheepparticipateinthecloningofanewsheep electricityisneededintheprocedure sheepbprovidesasomaticcellfortheclone thelambistheexactcopyofsheepa f t f t 5 cloningmeansmakingacopyofananimaloraplant 6 gardenerscanmakealotofmoneybycloningplants 7 cloninganimalsisascomplicatedascloningplants f 8 dollythesheepwasthefirstsuccessfulcloneofamammal 9 naturalcloneshappeninanimalsaswellasinplants f t t t animalclonesmaydeveloptheillnessesofolderanimals medicalcloningcouldproducecuresforseriousdegenerativeillnessesinhumans animalclonesmaydieyoungerthanthedonoranimals cloningplantscanproduceplantsofsimilarqualityforsale evilleadersmaywanttoclonethemselves cloningplantscanbeusefulforresearchonnewplantspecies therearemoralobjectionstocloninghumanbeings cloningcanhelpsaveendangeredanimals fillinthechartusingtheinformationfromthetext makinganexactcopy commercial straightforward breakthrough plantsspecies animals dollythesheep complicated asacoinhastwosides everythinghastwoaspects ononehand ifcloningisusedinacor