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1、Book8Unit2Cloning目标认知 重点词汇:differ,undertake,disturbing,castdown,objection,forbid,accumulate,infavorof,obtain 重点句型：suchas/such…as的用法 语法：同位语归纳精讲巧练differ【原句回放】Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainh
2、owtheydiffer.(P10)【点拨】differvi.tobedifferentfromsth.else表示“不同,相异”，常见的搭配有：Adifferfrom/withBon/aboutsth. 表示“关于某事A不同于B”，differin在……方面不同。 如： Idifferwithhimonhowtosolvetheproblem. Theydifferwitheachotheronmoralstandards. JapanesediffersgreatlyfromFrenchi
3、npronunciation.【拓展】differencen.差异,差别；differentadj.不同的 如: Therearemanydifferencesbetweenlivinginabigcityandlivinginthecountry. Theysometimeshavedifferentideasaboutliving,workingandplaying. 常见词组： bedifferentfrom… 与……不同 makeadifference 有很大差别,有很大的关系u
4、ndertake【原句回放】Theprocedureisdifficulttoundertake,ofcourse.(P11)【点拨】undertakevt.toagreetoberesponsibleforajoborprojectanddoit表示“从事，着手做，承担”，undertaketodosth。许诺做某事；undertakethat…保证…… 如： Thelawyerundertookthecasewithoutafee. IundertooktoteachthechildrenE
5、nglish. Ican'tundertakethatyouwillmakeaprofit.【拓展】undertakingn.表示“任务，事业；许诺” 如 Hewasrequiredtogiveawrittenundertakingnottodisclosethedetailsoftheircontract. Organizingaweddingisamajorundertaking.disturbing【原句回放】ThencamethedisturbingnewsthatDollyhadbe
6、comeseriouslyill.(P12)【点拨】disturbingadj.makingyoufeelworriedorupset表示“令人不安的，令人烦恼的”，常用来修饰物；disturbedadj.表示“被扰乱的,不安的”，常用来修饰人。如： Itisverydisturbingthattherehasbeenanincreaseincrimeinthelastsixmonths. Iamverydisturbedbythecomplaintsthathavebeenmadeagainst
7、you. Theyareverydisturbedchildrenwhoneedhelp.【拓展】disturbvt.表示“扰乱,弄乱，打扰”。 如： Thehostwasquiteannoyedwhenhefoundoutthathisthingsonthebookshelveshadbeendisturbed. I'msorrytodisturbyouwiththisquestion. Ihaveheardsomebadnewsthathasdisturbedmeverymuch.cas
8、tdown【原句回放】CloningscientistswerecastdowntofindthatDolly’sillnesswasmoreappropriatetoamucholderanimal.(P12)【点拨】castdown：feelingunhappyanddepressed，表示“使沮丧,低沉，使下降”；becastdown=feeldiscouraged. 如: Hewasmuchcastdownbythefailureofthee
