資源描述：
《人教版高二英語選修.ppt》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在PPT專區(qū)-天天文庫。
1、Unit2cloningReadingTheimportanteventsinanimalcloninghistoryIn1952tadpole(蝌蚪）wascloned.ItisthefirstanimaltobeclonedIn1963,anAsiancarp(鯉魚）wascloned.Tenyearslater,aChinesescientistnamedTongdizhouclonedaEuropeancarp.1978年7月25日,世界上第一個試管嬰兒路易絲·布朗在英國出生路易絲·布朗現(xiàn)已33歲In1996,asheepcalledDolleywasborn.Itisthe
2、firstmammaltobecloned.Itisconsideredtobethegreatestsuccessinthedevelopmentofcloning.Amacaque（獼猴）wasclonedin2000.Laterscientistsclonedmanymonkeys.2000年·人類近親被克隆 美國俄勒岡的研究者用與克隆多利羊截然不同的方法克隆出猴子TetraMules(騾子）havenoabilitytogivebirthtoababy.Amulewasclonedin2003.Itisthefirstanimalwhichlackfecundity(生育能力
3、）tobecloned.2001年·克隆人被提上日程Cloning:Whereisitleadingus?CloningUnit2Reading:Whatdoyouwanttoknowaboutcloning?1.2.3.……Skimming（略讀）:matchthemainideawitheachparagraph（段落大意連連看）A.Twomajorusesandtheprocedureofcloning.B.Cloningisawayofmakinganexactcopyofanotheranimalorplant.C.TheeffectofDollythesheep.D.It
4、isforbiddentoclonehumanbeings.E.Theproblemofdollythesheep.Para.1Para.2Para.3Para.4Para.5_______________(meaning)_________________________Skimthefollowingpassageandmatchtheparagraphwiththecorrectsentence.Para1A.TheproblemsofDollyPara2B.ThetwomajorusesofcloningPara3C.TheattitudestowardscloningPar
5、a4D.ThedefinitionofcloningPara5E.TheeffectofcloninginsocietyScanthetexttofindouttheanswerstothefollowingquestions.Scanning1.Dollythesheep______.A.lookedexactlylikethesheepthatprovidestheeggB.wastheexactcopyofthesheepthatprovidesthenucleusC.lookedlikethesheepthatgavebirthtoitD.hadthecharacterist
6、icsofallthreesheepChoosethebestanswer.2.Thesheepthatdonatedthesomaticcellmostprobablylived________years.A.3B.6C.9D.133.Whichofthefollowingisnotanadvantageofcloning?Cloningcanbeusedformedicinepurposes.Largequantitiesofplantscanbeproducedbycloning.Cloningcanhelpkeepanimalsfrombecomingextinct.Famo
7、uspersonswhohavepassedawaycanbecloned.4.Themainideaofthetext:A.Animalcloningisveryvaluableandcanbenefittheworld.B.Animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden.C.AnimalcloningiswelldevelopedbecauseDollythesheepwasborn.
