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1、cloningReadingWhereisitleadingus?Book8unit2Naturalcloneisonethatoccursinanaturalformofcloningwithouthumanhelp.Man-madecloneisonethatisproducedthroughhumanintervention(介入).WarmingupTwokindsofclones:Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowth
2、eydiffer.DiscussionAstrawberryplantThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.NaturalcloneGrowingnewplantsMan-madeclone富貴竹插枝即活Thegardenercutstheplant,andthenthecuttingproducesanothernewplant.Man-madecloneTwinsTheyarebornnaturallyandidenticalinsexandappearance.Naturalclon
3、eShewasclonedwhiletheotherswerebornnaturally.Dollywasa______sheep.clonedHowdoesDollydifferfromothersheep?Man-madecloneIn1996,asheepcalledDollywasborn.Itisthefirstmammaltobecloned.Itisconsideredtobethegreatestsuccessinthedevelopmentofcloning.Thefollowingaresomephotosaboutcloning.Seehowmuchyoukno
4、waboutit.2001cloningcattle2003Cloninghorsecloningrabbits2002cloningcats2005cloningdogs克隆的熒光小豬(左)和正常小豬(右)SkimmingPleasereadthepassagequicklyandgetthemainidea,andthenfinishthefollowingexercisesingroups.Themainideaofthetextis____A.animalcloningisveryvaluableandcanbenefittheworld.B.animalcloningcou
5、ldbemisusedbybadpeoplesoitmustbeforbiddenC.animalcloningiswelldevelopedbecauseDollythesheepwasborn.D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.主旨大意2.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandwork
6、edhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailedB細枝末節(jié)3.Whatispeople'sfearabouthumancloning.Whichofthefollowingiswrong?A.ClonedHitlerswoulddoharmtotheworld.B.Clonedpeoplemaybekilledatwillformedicalaid.C.Awomanwouldhavedifficultyrecognizingherr
7、ealhusband.D.Menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.4.Thesheepthatdonatedthesomaticcellmostprobablylived____years.A.3B.6C.9D.13推理判斷5.Wecaninferfromthelastthreeparagraphsthat___.ThenormaldevelopmentofDollyhadn
