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1、Unit2CloningLanguagepointsWarming-upandpre-reading1.clonen.[c]克隆的产物vt克隆【exercise】(1)Dollythesheepisa_______.(2)_______plantsisstraightforward.(3)Dollyisa______sheep.cloneCloningcloned1.differvi.观察示例:Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesa
2、reman-made.Explainhowtheydiffer.zxxk两人一组,观察图片并讨论哪些是自然无性繁殖,哪些是人工的。解释它们的区别。重点单词/词组1)ChinesediffersgreatlyfromEnglishinpronunciation.（汉语与英语在发音上有很大的不同。）2)Modernairplanesdifferfromearlyones.（现代飞机跟早期的在很多方面有所不同。）3)Idifferwithhimhowtosolvetheproblem.（对于如何解决问题,我跟他的意见不一致。）Theydifferw
3、itheachotheronmoralstandards.（关于道德标准,他们的见解不同归纳拓展：differ(vi.),主要有两个义项：“不同,相异；不同意,意见相左”。常见的搭配有：1).sb.differfrom/withsb.on/upon/aboutsth.;(某人与某人在....方面意见不同)2).sth.andsth.differin…;（某物与某物在....方面不同）3).sth.differfromsth.（某物与某物不同）4.difference(n.)不同different(adj.)不同的即时练习：用介词from,wi
4、th,on,about,upon或in填空。(1)Wediffer_________him______________thatquestion.from/withon/about/upon(2)Thetwonationsdiffer__cultureandreligion.(3)Theclimateherediffer_________thatoftheSouth.infrom/with1.Itisawayofmakinganexactcopyofanotheranimalandplant.exactadj.确切的，精确的Iwanttokno
5、wtheexacttime.exactlyadv.确切地，正是；恰好他们的回答完全一样。Theiranswersareexactlythesame.那正是我所期待的。That'sexactlywhatIexpected.2.undertakevt.(undertook;undertaken)观察示例:Theprocedureisdifficulttoundertake,ofcourse.当然,这个过程很难实施。Thescientistundertakestheexperiment.科学家从事这项实验。zxxkIcanundertakether
6、esponsibilityforthechanges.我愿意承担这些变革的责任。Thelawyerundertookanewcase.那个律师接了一个新的案子。undertake是及物动词,主要有两个义项:着手做,从事,进行;担任,承担,答应,同意。归纳拓展：即时练习：完成下列句子。(1)Hewill__________________nextmonth(去旅行).(2)He____________________(承担一项新任务).undertooktasknewaaundertakejourney3.payoff(事业、计划等)成功观察示
7、例1.Atlastthedeterminationandpatienceofscientistspaidoff…..最终科学家们的决心和耐心得到了回报….2.Hepaidoffthecrewoftheship.他付清全体船员的工资并将他们解雇。Intheendhepaidoffallhisdebts.最终他还清了所有的债务。归纳拓展：payoff有三个义项：成功；付清薪水并解雇；偿还（债务等）。payback报答；报复zxxk用介词back,off,to,填空:1)-----youreffortissuretopay_____.----Tha
8、nkyouforyouencouragement（2）Thesupermarket________whichhehadeverpaidavisit，wasburnt
