高二英语Unit_2_Cloning-Reading[

Unit2cloningReadingWhichonesarenaturalclones?Whichonesareman-made?Howdotheydiffer.WarmingupAstrawberryplantGrowingnewplantsNaturalcloneisonethatoccursinanaturalformofcloningwithouthumanhelp.Man-madecloneisonethatproducedthroughhumanintervention(介入).DollythesheepShewasclonedwhiletheotherswerebornnaturally.Inotherword,Dollywasa______sheep.clonedHowdoesDollydifferfromothersheep?Pre-reading–addyourquestionstothelistQuestionlistaboutcloning1.Whatisaclone?2.Howisacloneproduced?3.Whatbenefitscanhumansgainfromcloning?4.Whatproblemsmayarisewhenhumansarecloned?5.…6.…共119页8●重点单词1．differvi.不同；相异→differentadj.不同的→differencen．不同，差异2．twinn．双胞胎之一；孪生儿之一adj.成对的；成双的3．straightforwardadj.简单的；直接的；坦率的4．undertakevt.着手；从事；承担→undertook(过去式)→undertaken(过去分词)共119页95．breakthroughn．突破6．castvt.扔；投；掷→cast/cast(过去式/过去分词)7．objectvi.反对；不赞成→objectionn．不赞成；反对；异议→objectiveadj.真实的；客观的；无偏见的8．obtainvt.获得；赢得9．attainvt.获得；达到(水平、年龄、状况等)共119页1010．forbidvt.禁止；不准→forbade(过去式)→forbidden(过去分词)11．accumulatevt.积累；聚积12．owevt.欠(账、钱、人情等)；归功于……13．retirevi.退休；离开→retirementn．退休14．bothervt.打扰vi.操心n．烦扰共119页11●重点短语1．payoff得到好结果；取得成功；偿清2．castdown沮丧；不愉快3．objectto反对4．infavourof赞成；支持5．owe...to...把……归功于……6．(be)boundto(to)．..一定或注定(做)……Skimming（略读）:matchthemainideawitheachparagraph（段落大意连连看）A.Twomajorusesandtheprocedureofcloning.B.Cloningisawayofmakinganexactcopyofanotheranimalorplant.C.TheeffectofDollythesheep.D.Itisforbiddentoclonehumanbeings.E.Theproblemofdollythesheep.Para.1Para.2Para.3Para.4Para.5________________________________________Cloningisawayofmakinganexactcopyofanotheranimalandplant.Whatiscloning?Cloninghappensbothin______andin_______.Theycanbeclonedby________and_______.plantsanimalsthemselveshumansNaturalcloneMan-madeclonePara1readandfilltheblanksIntensiveReading1.Howmanymajorusesdocloninghave?Firstly,…commercial…Secondly,…research…2.WhenwasthecloningofDollythesheepborn?Whydidthescientistssucceedincloningit?Para2Readtogether1996.Itwastheirdeterminationandpatiencethatpaidoff.Themajorusesandbreakthroughofcloning①②③④⑤⑥⑦⑧⑨克隆羊诞生图示Somenewexpressions•Femalesheep母羊；eggcell卵细胞;•Nucleus细胞核；somaticcell体细胞;•Gene基因；divide分配，分化;•Donatedcell供体细胞；embryo胚胎;•Sperm精子•Solution溶液;fuse融合;•implant植入;•womb子宫；pipette移液管Atfirst,thefactthatDollydeveloped________inanaturalwaywas__________.Later,thenews_____shelivedforsixyears,halfthelengthofthelifeofthe______onewas__________.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives_________thantheoriginalone.Para3TheproblemsofDollynormallyencouragingoriginalthatdisturbingshorter1.Thefactthatsheseemedtodevelopnormallywasveryencouraging.2.ThencamethedisturbingnewsthatDollyhadbecomeseriouslyill.AppositiveclauseWecaninferfromthelastthreeparagraphsthat___.A.ThenormaldevelopmentofDollyhadnoeffectonthecloningofotherspecies.B.Dolly’sseriousdiseaseandfinaldeathdisturbedthewholeworld.C.Dollysuccessfullyclonedanewlambwiththehelpofcloningscientists.D.Therewereargumentsaboutanimalsaboutanimalcloningandconcernsaboutthefutureofcloning.Para4&5Theimpactandpeople’sreactiontocloning＊theauthordoesnotstateanypersonalopinionaboutcloning.A.Objective(befair)B.Negative(beagainstit)C.Positive(beinfavorofit)Thewriter’sattitudetowardscloningBecause_________________________________________________________________DetailreadinganddiscussionFillinthechartusingtheinformationfromthetext.ProblemsordangersofcloningAdvantagesofcloningAnimalsmay_________________ofolderanimals.Medicalcloningcould_____________forserious________inhumans.developtheillnessesproducecuresillnessesAnimalclonesmay__________thanthedonoranimalsCloningplantscan_____________ofsimilar_______________._________maywanttoclonethemselves.Cloningplantscanbe_____forresearchon________________.Thereare_______________tocloninghumanbeings.Cloningcanhelpsave____________________.dieyoungerproduceplantsqualityforsaleEvilleaderusefulnewplantspeciesmoralobjectionsendangeredanimalsPractice:RetelltheprocedureofcloningDollythesheep?1.Thefactisthattheyarebothexamplesofnaturalclones.2.Thequestionsthatconcernedallscientistswere:“Wouldthisbeamajordifficultyforallclonedanimals?”3.Itsuddenlyopenedeverybody’seyestothepossibilityofusingcloningtocureseriousillnesses,andevenproducinghumanbeings.4.Althoughatpresenthumaneggcellsandembryosneededforcloningresearcharedifficulttoobtain,newspaperswroteofevilleadershopingtoclonethemselvestoattaintheirambitions.understandthesentences:PredicativeclauseAttributiveclausePractice–discussion(8ms)Chooseoneofthefollowingquestionstodiscussingroups.Theleaderofeachgroupshouldwritedowneverymember’sopinion,thenthevolunteerswillshowyourgroupworktothewholeclass:Questions:1.Doyousupporttheideaofproducinghumanembryos(胚胎)formedicalpurposes?Why?2.Doyouthinkitagoodideatouseclonedhumansfororgan(器官)transplants?Why?3.Doyouthinkaclonedhumanshouldhavehumanrights?Why?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。第一只克隆宠物猫克隆马及其“母亲兼姐姐”2002年4月十六日美国第一头克隆牛“艾米”产下牛犊喜作妈咪克隆的荧光小猪(左)和正常小猪(右)AstrawberryplantThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.富贵竹插枝即活LuckybambooThegardenershouldcuttheplant