选修8 unit2 cloning 公开课

Inpairs,lookatthefourpicturesanddiscuss:whichonesarenaturalcloneswhichonesareman-made.Thinkabouthowtheydiffer.DollythesheepAstrawberryplantGrowingnewplant.TwinsDoyouwanttobecloned?Why？exacttwincommercialstraightforwardundertakebreakthroughprocedurecarrieradj.精确的；准确的n.双胞胎之一adj.成对的；成双的adj.商业的；贸易的adj.简单的；坦率的vt.着手；从事；承担n.突破n.程序；步骤；手续n.携带者；搬运工；运输工具Wordspreviewcastaltogetherarbitrarycorrectionobjectobjectionmediumthemediaobtainvt.扔；投；掷adv.总共；完全地adj.任意的n.改正；纠正；修正vi.反对；不赞成n.不赞成；反对；异议n.媒介；手段；工具大众传播媒体vt.获得；赢得Wordspreviewattainmoralconservativeforbidaccumulatevt.获得；到达adj.道德(上)的；伦理的adj.保守的；守旧的vt.禁止；不准vt.积累；聚积WordspreviewThetextismainlyaboutthe1._________ofanimalcloningandthelifeofDollythesheep,aswellasthereasonswhycloningisstill2.____________.controversial（有争议的）procedureListenandreadthetextquicklyandcompleteitsmainidea.2,MatchthemainideaofeachparagraphPara1:A.Twomajorusesandtheprocedureofcloning.Para2:B.TheproblemsofDolly.Para3:C.TheeffectofDolly.Para4:D.People’sattitudetowardscloningPara5:E.Thedefinition（定义）ofcloning.1、Thesheepthatdonatedthesomaticcellmostprobablylived____years.A.3B.6C.9D.12细节理解2、Theword“straightforward”inpara2probablymeans____________.A.uncomplicatedB.arguableC.importantD.moral词义猜测推理判断3、Fromthelastparagraphwecaninferthat____.A.cloningwillcometoanendbecauseoftheobjectionsB.clonedhumanbeingswillbeproducedinthenearfutureC.manycountrieswillusecloninginawisewayD.alltheresearchintohumanbeingswillbeforbidden4、Whataboutthewriter’sattitudetowardcloninginthispassage?A.Thewriterisagainstcloning.B.Thewriterisinfavorofcloning.C.Thewriterdoesnotstateanypersonalopinionaboutcloning.D.Thewriterisinagreementwithcloning.推理判断Readthepassageandanswerthesequestions.（onPage12）1.Whatarethetwomajorusesofcloning?2.Whyisiteasiertomakecommercialplantclonesthananimalclones?3.Whatwasthefirstclonefromanadultanimal?Atwhatagedidthisclonedie?4.Whyiscloningcontroversial（有争议的）insomecountries?1.Whatarethetwomajorusesofcloning?Thefirstuseistoproducecommercialquantitiesofplants.Thesecondistoresearchonnewplantsspeciesanddomedicalresearchonanimals.（Line5-7）2.Whyisiteasiertomakecommercialplantclonesthananimalclones?Cloningplantsisstraightforward,butthecloningofanimalsisverycomplicated（Line7）3.Whatwasthefirstclonefromanadultanimal?Atwhatagedidthisclonedie?4.Whyiscloningcontroversialinsomecountries?ThefirstclonefromanadultanimalwasDollythesheep.Shediedin2003attheageofsixandahalf.Cloningiscontroversialinsomecountriesformoralandreligiousreasons.Doyouknowabouttheprocedureworksofasheep?AneggcellThenucleusTheeggcellAsomaticcellThenucleusistakenoutofthesomaticcellThenucleusTheyarejoinedThecelldividesandgrowsintoanembryoThecarrierPutintoThelambisthecloneofFemalesheepAFemalesheepBSheepBFemalesheepCgenesProcedureofCloningaSheepPracticeactivity:Areyouinfavorofthehumancloningoragainstit?Why？ＶＳ正方反方TeamA:Iwouldliketosuggestthat______________________.soinmyopinion,humancloningisgood.TeamB:Idon’tagreewithyou.firstly,fromthepassageweknowthat_____________________.Secondly_____________________,Thirdly,___________________.SoIthinktheresearchintohumancloningshouldbeforbidden.Usefulpatterns: