Vocabulary&Reading外研版Book6Module5

Module5CloningWhatanimalshavebeencloned?DollyFirstclonedmuleClonedmonkeysFirstclonedhorseFirstclonedcat1.Whatiscloning?2.Howcanweclonesomething?FreetalkReadthesewordsanddecidewhichonesyouarelikelytoseeinthepassage.acidbacteriaembryosenzymeexperiencegenehumantissueorganismplantpsychologicalstemcellstructureupbringingBeforeReading（possibly）1.DNA?2.Enzyme?3.Aclone？Fast-readingpara1—3DNAthefundamentalcomponentoflifeenzymechemicalsformedinthebodyacloneanorganismwhichisgeneticallyidenticaltoanotherDolly5Howmanypossiblereasonsforcloningarementionedinthepassage?Fast-readingFourpara4—7Careful-reading1.whodiscoveredthestructureofDNA?When?2.WhatdidMendelunderstandin1866？1953WatsonandCrickHeunderstoodthatboththeparentplantshadinfluencedthegeneticmake-upofthenewplant.Para1Careful-readingFindtheexpressions解码DNA截取一段序列的基因3.把它们插入宿主细胞UnziptheDNACutoutasequenceofgenesInsertthemintothehostcellHowcanweclonesomething?CloningtakestheDNAfromasinglecelltocreateawholeindividual.Para2&3Careful-readingFindtheexpressions正当的理由可供选择的治疗方法未知的心理压力选择人生道路拥有新的缺点原有的美德validreasonsanoptionaltreatmentunknownpsychologicalpressurechooseapathinlifepossessnewvicesexistingvirtuesPara4&5DisadvantagesValidreasons(advantages)AsanoptionaltreatmentforcoupleswhofinditdifficulttohavechildrenAclonewouldbeunderunknownpsychologicalpressurereproducethetalentsofexceptionalpeopleAclonemaypossessnewvicesinsteadofexistingvirtuesCareful-readingExplaintheexpressionsrecoverfromadisease修复人体组织一只优选奶牛relyon限制生物品种的多样性atacrimescenerepairhumantissueapricecow依靠，依赖restrictthebiodiversityofthebreed在犯罪现场Para6--8从疾病中康复DisadvantagesValidreasons(advantages)ToobtainasupplyofstemcellsEmbryosmadefromcloneswouldbewastedwhichsomepeoplewouldfindunacceptable.Tohelpfarmersgrowresistantcrops.TorelyonafewclonedanimalsorcropswouldrestrictbiodiversityActivity2AnswerthequestionsWhatis________?1DNA2aclone3astemcellp1thefundamentalcomponentoflifep3anorganismwhichisgeneticallyidenticaltoanotherp6acellthatcandevelopintoeveryothertypeofcell4thegeneticmake-upofapersonoraplant5bacteria6anenzymep1theparticulargenesthatgiveapersontheirphysicalcharacteristicsP7verysmallorganismsthatcausediseasesP2chemicalsformedinthebodyActivity4Readthepassageandfindtheparagraphswhichdescribe:WhenthestructureofDNAwasdiscoveredhowtoclonesomethingfourpossiblereasonsforcloningthedisadvantagesofcloningPara1Para2.3Para4.5.6.7Para4.5.6.7Activity5Choosethebestanswers.1Thescienceofgeneticswasdiscoveredby_____.MendelWatsonandClickCohenandBoyerEinsteina2Cloninghumansfromtheirparentshasthedisadvantagesthat_____.itisatreatmentforcoupleswhowantchildren.itcouldcreateanexceptionalhumanbeing.wecannotpredictthepsychologicaleffectstheclonemaynotleadthesamelifec3Stemcellcanbeusedto____developintoenzymescreateprizewinninganimalssolvecrimeshelppeoplerecovertheirgoodhealthd4Clonesofexceptionalhumanbeings____.wouldbeunderunknownpsychologicalpressurewouldhavedifferentexperiencesandupbringingfromordinarypeoplewouldallowustobringEinsteinbacktolifemayhavedifferentcharacteristicsfromtheoriginald5Ifwecanbesurethattheembryowillnotbewasted,_____.CloningtoobtainstemcellwouldbeacceptabletomanypeoplestemcellscoulddevelopintoeveryothertypeofcellinthebodycloningwouldneedtobecontrolledbyavoluntarycodeofpracticeorgovernmentregulationscloningcanbeusedtocreateanimalsandcropsaActivity6Answerthequestions1Whatregulationsoncloningdosomepeoplethinkshouldbecompulsory?Tocontroltheuseofcloning.2Howdopeople’sfingernailshelpsolvecrimes?Becausethereisinformationaboutsomeone’sDNAundertheirfingernails.3Whyistakingstemcellsfromembryoscontroversial?Becausetheembryosmightbewastedduringresearch.4Howmightaprizecoworclonedcropsbehandy?Theycouldresistbacteriaanddiseases.5Howmanyvalidargumentsinfavourofcloningdidyoureadinthepassage?Students’ownidea.6Whywouldascientistorafarmerwanttoresistrotorpets?Sothathecanguaranteeaharvestorgetabiggerharvest.7Whatsortofvicesmightbeunacceptableinaclonedperson?Thesameasinanyoneelse.8IfDNAisatransparentacid,canyouseethroughit?Yes9Iftheresultsoftwosimilarexperimentsarecontradictory,canbothresultsbetrue?No10Isafundamentalcomponentimportantornot?It’simportant.LanguagePoints1It’struethat…it为形式主语，that引导的句子作真正的主语eg:It’struethathehasbeentoAmerica.=ThathehasbeentoAmericaistrue.2underpressure有压力underconstruction/reconstruction/way/repair在建造中/重建中/进行中/维修中3supplynwater/gas/electricity…supplyanddemand供求关系vsupplysbwithsthsupplysthtosb拓展：providesbwithsthprovidesthforsboffersbsthoffersthtosb4recoverfrom从…中恢复过来eg:It’ssurprisingthattheoldladyrecoveredfromthedisease.Isitrighttoclonehumanbeings？DiscussionConclusionScienceisatwo-edgesword.Role-playhomeworkSurftheInternettofindmoreinformationaboutcloningandwriteacomposition:MyViewonCloningTipsYoucanwriteasfollows:1.Areyoufororagainstcloning?2.Giveyourreasons.Usethesewords:“firstly…secondly…lastly”3.Giveexamplestosupportyouridea.YoucanseetheexampleonP66