高二选修8unit2CloningVIP专享VIP免费

1Unit2CloningReadingCloning:Whereisitleadingus?海钢一中:王晓纯2Dollythesheep3Theprocedureworkslikethis:4Thefollowingstatementsareaboutcloning.Readthemanddecideiftheyaretrueorfalse.1.Cloningmeansmakingacopyofananimaloraplant.2.Gardenerscanmakealotofmoneybycloningplants.Exercises:53.Cloninganimalsisascomplicatedascloningplants.4.Dollythesheepwasthefirstsuccessfulcloneofamammal.5.Naturalcloneshappeninanimalsaswellasinplants.6单词和短语：exactbreakthroughforbidcastdownobjectto重点句子：1.Theprocedureisdifficulttoundertake,ofcourse.2.ThencamethedisturbingnewsthatDollyhadbecomeseriouslyill.教学目标和要求(Teachingaimsanddemands)73.AltogetherDollylivedforsixyears,halfthelengthofthelifeoftheoriginalsheep.4.Ontheotherhand,Dolly’sappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.5.However,scientistsstillwonderwhethercloningwillhelporharmusandwhereitisleadingus.81.exact:(adj.)withoutanyerror,correct精确的；准确的eg:Itwassometimelastweek,butIcan’tremembertheexact.exactly准确地exactlyspeaking2.breakthrough:(n.)theactofbreakingthroughanobstacleorrestriction突破（障碍或限制）eg:Thisisabreakthroughinscience.类似由动词组变化而来的名词还有：breakdownn.breakoutn.breakupn.breakawayn.3.forbidvt.(forbad/forbade;forbidden)notallowed;preventforbidsb.todosth:forbiddoingsth;eg:Iforbidyoutodoit.eg:Smokingisforbiddenhere.9语言点讲解：短语castdown:使沮丧;击倒eg:Thebadnewsgreatlycastmedown.Wearecastdownbythefailure.object:反对;讨厌;不喜欢(beagainst;oppose)objectionn.eg:Doyouobjecttomysmoking?Theboyobjectstobeingtreatedasachild.10重点句子解析：1.Theprocedureisdifficulttoundertake,ofcourse.当然,程序很难进行。可改写为:Itisdifficulttoundertaketheprocedure.2.(Thencamethedisturbingnews)thatDollyhadbecomeseriouslyill.接着传来了多莉病重的坏消息。3.AltogetherDollylivedforsixyears,halfthelengthofthelifeoftheoriginalsheep.多莉总共活了6年，是一只普通羊寿命的一半。4.Ontheotherhand,Dolly’sappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.另一方面，多莉的出现引起了强烈的异议，并且对媒体以及公众的想像力有巨大的影响。5.However,scientistsstillwonder(whethercloningwillhelporharmusandwhereitisleadingus).然而,克隆是对我们有益还是有害,它到底要把我们引向何方,科学家们对此害表示疑惑。11raiserise12wonder+whether/ifwh-想知道……thatwonder+todo感到奇怪,惊讶at/aboutn./doing13辅助强化练习:根据汉语提示填空1.Smokingis(禁止)inpublicplace.2.He(积累)alargefortunebyhardwork.3.Itwasrainingbut(总体上说)itwasagoodtrip.4.He(承担)theresponsibilityforchanges.5.Hemajoredin(商业)educationwhenhewasinuniversity.6.Heis(坦率的)andiseasytogetalongwith.7.Theparents(反对)ourideaofweekendactivitieswhileourteachersareinfavourof(支持)it.8.Hewas(沮丧)tofindhehadfailedtheexamagain.14TheEnd