book-8--unit2--reading-课件.ppt

Unit2Cloning,Period1Reading,一株草莓依靠它沿地“爬走”的匍匐茎,一年内就能长出数百株草莓苗,Astrawberryplant,Theplantproducesitsownrunners.,AstemTakecuttingsfromgrowingplantstomakenewones.,Theyareidenticalinsexandappearance,whoareproducedfromthesameoriginalegg.,Twins,Theyarebornnaturallyandidenticalinsexandappearance.,Cloningisawayofmakinganexact_ofanotheranimalorplant.,WhatisCloning?,copy,Whatisthedifferenceamongthem?,clone,我国成功繁殖克隆兔体形要比普通兔大许多,2002年5月中旬成功地繁殖了一只胚胎细胞克隆兔。,2002cloningcats,克隆的荧光小猪(左)和正常小猪(右),Shewasc_whiletheotherswerebornnaturally.Itistheexactcopyofanothersheepandthefirstclonedmammal.,loned,Dollythesheep,Learningaims:,1.Tograspthemainideaandmoredetails.2.Toimprovetheabilitytoanalyzethelonganddifficultsentences.3.Toarousetheinterestindevelopmentofscienceandtechnology.,【课前预习】,I.Phrases1.一直2.企图干某事3.取得成功4.从中移除5.准备好6.为提供7.从中取出8.一方面，另一方面9.沮丧10.适合于的,1.videsthforsb7.takeoutof8.ontheonehand,ontheotherhand9.becastdown10.beappropriateto,11.对有重大影响12.支持13.一定做14.引起反对15.一阵16.开阔视野17.继续做18.实现野心19.不同意20.观点,11.haveagreatimpacton12.infavourof13.beboundto14.raiseobjections15.astormof16.openoneseyes17.continuetodo18.attainonesambitions19.disagreewith20.pointofview,1.Dollythesheep_.A.lookedexactlylikethesheepthatprovidestheegg.B.wastheexactcopyofthesheepthatprovidesthenucleus.C.lookedlikethesheepthatgavebirthtoit.D.hadthecharacteristicsofallthreesheep.,II.Readthepassageandfinishtheexercises.,2.Itcanbeinferredfromthepassagethataclonedanimal_.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallylivesshorterthantheoriginaloneD.isusuallyashealthyastheoriginalone,3.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurposes.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanimalsfrombecomingextinct.D.Famouspersonswhohavepassedawaycanbecloned.,4.Theword“controversial”inpara4probablymeans_.A.complicatedB.arguableC.important,theauthordoesnotstateanypersonalopinionaboutcloning.,A.Objective(befair)B.Negative(beagainstit)C.Positive(beinfavorofit),5.Thewritersattitudetowardscloning,Because_,【课内探究】,I.Readthepassageandnumberthemainideaofeachparagraph._Cloninghastwomajorusesandsuccessfulclone._Cloningisawayofmakinganexactcopyofanotheranimalandplant(definition)_TheeffectofDolly._Itisforbiddentoclonehumanbeings._TheproblemsofDolly.,2,1,4,5,3,课内探究,makinganexactcopy,commercial,plantsspecies,animals,straightforward,complicated,Dollythesheep,breakthrough,normally,Seriouslyill,6.5,original,objections,media,imagination,seriousillnesses,humanbeings,moral,forbade,themselves,accumulate,III.Importantsentences.1.Butatlastthedeterminationandpatienceofthescientistspaidoffin1996withabreakthrough-thecloningofDollythesheep.翻译:但是决心和耐心使科学家们最终于1996年收获了突破性的结果-克隆羊“多莉”2.AltogetherDollylivedsixandahalfyears,halfthelengthofthelifeoftheoriginalsheep.halfthelengthofthelifeoftheoriginalsheep做_翻译：多莉总共只活了六年半，这是它的原型羊寿命的一半,同位语,3.Althoughatpresenthumaneggcellsandembryosneededforcloningresearcharedifficulttoobtain,newspaperswroteofevilleadershopingtoclonethemselvestoattaintheirambitions.neededforcloningresearch做_，修饰_；hopingtoclonethemselvestoattaintheirambitions做_，修饰_翻译:尽管目前供克隆研究的人类卵细胞和胚胎很难获得，但是报纸报道说，有些邪恶头目希望把自己克隆出来以实现他们的野心。,定语,humaneggcellsandembryos,定语,evilleaders,能力提升,冒死也要克隆人的法国科学家:布瓦瑟利耶,恐怖分子头目本拉登,Dabate:Areyoufororagainstcloninghumanbeings,The10-year-oldgirl,KinderdiedinanaccidentinAmerica,clonecanproduceanexactgirlofher.,Clonecanmakeawomanwhocantgetpregnant(怀孕的）haveachild.,Atpresentourcountrylacksorgans(器官）.Theclonedmancantransformhisorganstohisoriginalone(本体),Theyhavethesameface.Peoplearenolongerspecialtoeachother.,Ourcloningtechnologyisnotperfect.Someclonedbabieshavedeformity(畸形）frombirth.,Debate:Whatisyouropinionofcloning?Areyouinfavorofitoragainstit?(谁说谁有理）,Requirements:Eachgroupchooseoneopinionandtryyourbesttogiveasmanyreasonsa