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1、Unit2CloningLanguagepoints1.differvi.观察示例:Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.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。A：重点单词1)Chinese________greatly___________Englishinpronunciation.（汉语与英语在发音上有很大的不同。）2)Modernairplanes____________
2、_earlyones.（现代飞机跟早期的在很多方面有所不同。）3)I_____________himhowtosolvetheproblem.（对于如何解决问题,我跟他的意见不一致。）4)They___________eachotheronmoralstandards.（关于道德标准,他们的见解不同。）differsfromdifferfromdifferwithdifferwith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.;(某人与某人在某….方面意
3、见不同)2).sth.andsth.differin…;（某物与某物在某….方面不同）3).sth.differfromsth.（某物与某物不同）4.——————(n.)不同—————(adj.)不同的differencedifferent即时练习：用介词from,with,on,about,upon或in填空。(1)Wediffer_________him______________thatquestion.from/withon/about/upon(2)Thetwonationsdiffer__cultureandreligion.(3)Theclimateherediffer__
4、_______thatoftheSouth.infrom/with汉译英：这个小男孩在性格方面不同于他的母亲。Theboydiffersfromhismotherincharacter.2.undertakevt.(undertook;undertaken)观察示例:Theprocedureisdifficult_______________,ofcourse.当然,这个过程很难实施。Thescientist_____________theexperiment.科学家从事这项实验。toundertakeundertakesIcan__________theresponsibilityfo
5、rthechanges.我愿意承担这些变革的责任。Thelawyer___________anewcase.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：undertakeundertook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).undertooktasknewaaundertakejourneypayoff:1.清偿债务2.付清工资后解雇3.取得成功;得到好结果4.贿赂;
6、观察示例1.Atlastthedeterminationandpatienceofscientists___________…..最终科学家们的决心和耐心得到了回报….2.He_____________thecrewoftheship.他付清全体船员的工资并将他们解雇。paidoffpaidoffIntheendhe________allhis_____.最终他还清了所有的债务。归纳拓展：payoff有三个义项：1.成功；2.付清薪水并解雇；3.偿还（债务等）。payback:报答；报复paidoffdebts用介词back,off,to,填空:(1）---youreffortissur
7、etopay_____.---Thankyouforyourencouragement.（2）Thesupermarket____whichhehadeverpaidavisit，wasburnttotheground.（3）HowcanIpayyou_____forallyourkindness？（4）Well，aftertheseyears，we’veatlastpaid_____allourdebts.offtobackoff
