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Unit2Cloning单词注释难句剖析导读诱思科学家们不断致力于发展克隆技术,那么克隆技术对人类有什么样的意义呢?WhyClone?Researchadvancesoverthepastdecadeshaveprovedthatwehumanscanclonejustaboutanythingwewant!Butwhywouldwewanttoclone?Herearesomeofthereasonspeoplegivetoexplainthatcloningisreasonable.CloningformedicalpurposesOfallthereasons,cloningformedicalpurposeshasthemostpotentialtobenefitlargenumbersofpeople.Howmightcloningbeusedinmedicine?单词注释难句剖析导读诱思Muchofwhatresearcherslearnabouthumandiseasecomesfromstudyinganimalmodelssuchasmice.Often,animalmodelsaregeneticallyengineeredtocarrydisease—causingchangesintheirgenes.Creatingtheseanimalsisalongprocess.Cloningtechnologiesmightreducethetimeneededtomakeatransgenic1animalmodel,andtheresultwouldbeapopulationofgeneticallyidenticalanimalsforstudy.Stemcells2areresponsiblefordevelopingandrepairingthebodythroughoutlife.Asaresult,theymightbeusedtorepairdamagedordiseasedorgansandtissues3.Researchersarelookingoncloningasawaytocreategeneticallyengineeredhumanstemcellsforresearchandmedicalpurposes.单词注释难句剖析导读诱思Farmanimalsarebeinggeneticallyengineeredtoproducedrugsthatareusefulinmedicine.Justlikecreatinganimalmodelsofdisease,cloningmightbeafasterwaytoproducealargenumberofsuchanimals.BringingextinctspeciesbacktolifeInthefilmJurassicParkscientistsuseDNApreservedfortensofmillionsofyearstoclonedinosaurs.Couldwereallyclonedinosaurs?Intheory?Yes.Inreality?Probablynot.It’snotlikelythatdinosaurDNAcouldsurviveundamagedforsuchalongtime.However,scientistshavetriedtoclonespeciesthatbecameextinctmorerecently.单词注释难句剖析导读诱思CloninghumansTocloneornottoclone:thatisaquestion.Humancloningishighlycontroversialandraisesanumberofproblems.Whywouldpeoplewanttoclonehumans?Oneimportantreasonistohelpchildlesscoupleshavechildren.Fromatechnicalpointofview,beforehumansarecloned,weneedtohaveagoodideaoftherisksinvolved.单词注释难句剖析导读诱思1.transgenicadj.转基因的2.stemcell干细胞3.tissuen.(生物的)组织单词注释难句剖析导读诱思1.Researchadvancesoverthepastdecadeshaveprovedthatwehumanscanclonejustaboutanythingwewant!译文在过去几十年里,科学研究的进展已经证明我们人类几乎能够克隆我们想克隆的一切!剖析thatwehumanscanclonejustaboutanythingwewant在句中做prove的宾语。2.It’snotlikelythatdinosaurDNAcouldsurviveundamagedforsuchalongtime.译文恐龙的DNA在这么长的时间里不受损害而能保存下来是不可能的。剖析It’snotlikelythat...意为“……是不可能的”。单词注释难句剖析导读诱思读短文,完成下列表格。Reasonsforcloning◆Cloningformedicalpurposes:1.___________________________________________________________2.___________________________________________________________3.___________________________________________________________◆Bringingextinctspeciesbacktolife:4.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________◆Cloninghumans:5.___________________________________________________________Cloninganimalmodelsofdisease.Cloningstemcellsforresearch.Cloningfarmanimalsfordrugproduction.Althoughit’snotlikelytocloneanimalsthatbecameextinctalongtimeago,speciesthatbecameextinctmorerecentlymightbeclonedbyscientists.Helpingchildlesscoupleshavechildren.SectionⅠ—WarmingUp,Pre-reading,Reading&Comprehending一二三四五Pre-reading一、回答下列问题1.Theseanimalshavealreadybeenclonedbyhumanbeings.Howaretheydifferentfromotheranimals?Theywereclonedwhileotheranimalswerebornbytheirmothers.Eachofthemisacopyofanotheranimal.一二三四五2.Doyouknowanyotheranimalsthathavebeenclonedbyhumanbeings?3.Whatdoyouthinkofcloning?First,_____________________________________Second,_____________________________________Third,_____________________________________Fourth,_____________________________________...Answerswillvary.Answerswillvary.一二三四五二、将单词与对应的释义搭配起来AB1.casta.togetsth.youwant2.obtainb.inall,completely3.objectc.tothrow4.altogetherd.tobedifferentfromsth.insomeway5.differe.todisapproveofsth.一二三四五While-reading三、短语填空1.pay取得成功;得到好结果;偿清2.cast沮丧;不愉快3.favourof支持;赞成4.stormof一阵5.differ与……不同6.beappropriate适合于……的7.object反对;不赞成8.haveanimpact对……有影响offdowninafromtotoon一二三四五四、阅读CLONING:WHEREISITLEADINGUS?,回答下列问题1.Whatarepeoplecloningnow?A.Theyarecloningbooksandmachines.B.Theyarecloninghumansandanimals.C.Theyarecloningplantsandscience.D.Theyarecloningtrees,crops,grass,flowers,etc.,aswellasanimals.2.Itcanbeinferredfromthepassagethataclonedanimal.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallylivesshorterthantheoriginaloneD.isusuallyashealthyastheoriginaloneDC一二三四五3.WhathappenedtoDollythesheep?A.Sheislivinghealthily.B.Shebecameillanddiedatlast.C.Herchildalsodiedattheageofsix.D.Allthescientistswerenotsadaboutherdeath.4.Fromthepassage,wecansee.A.Dolly’soriginalsheeplived13yearsB.Dolly’sbabywasalsoaclonedoneC.newspapersdidnotdisclosecloningsheepD.officialsneverbecamenervousaboutcloningsheep5.Wecanusetheskillofcloningto.A.bringaboutglobalpeaceB.createotherfamousscientistsC.improvethedevelopmentoflearninglanguageD.curesomespecialdiseasesBAD一二三四五Post-reading五、根据课文内容填空Cloningisawayofmakinganexactcopyofanotheranimalorplant.Ithappensinplantswhen