选修8unit2词汇课件

Unit2Vocabulary,1.differvi.different,difference观察示例:Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-make.Thinkabouthowtheydiffer.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。思考它们的区别。,考点differ意为“不同；相异”,可构成短语differfrom.与不同;differin.在方面不同。考例Leavesarefoundonallkindsoftrees,buttheydiffergreatly_sizeandshape.(上海2007)A.onB.fromC.byD.in点拨differinsizeandshape在大小和形状上不同。,用适当的介词填空(1)Imsorrytodiffer_you_thematter.(2)Thecustomsherediffer_thoseofthesouth.(3)Thetwogirlsdiffer_language.(4)Therearemanydifferences_livinginthecityandlivinginthecountryside.,from,on/over,from,in,between,2.Itisadifficulttasktoundertake.undertakevt.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。,Iwillundertaketheresponsibilityforthechanges.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,主要有以下义项: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).,undertook,task,new,a,a,undertake,journey,3.payoff得到好结果;取得成功;付清词语联想pay(sb)backsth还(某人)钱/物paysbbackforsth因而报复/惩罚某人payforsth付的钱；为付出代价payout为某事而付出大笔款项,注意事项payoff当“(努力、辛苦)得到好结果；(事业、计划)成功”讲时，为不及物动词短主，用主动语态。原文再现Youmightfindthishardatfirstbutitpaysoffwhenyoucometospeak.,用pay相关短评的适当形式完成句子(1)Ill_(还你钱)nextmonth.(2)Youmust_(为付出代价)yourrudewords.(3)_(他努力没有白费)whenthemanageracceptedhisproposal.(4)She_200yuan_(付的钱)Tomsbike.,for,payyouback,payfor,Hiseffortspaidoff,paid,()Mom,Icantseeanypointinworkinghardatallthesubjectsatschool.Comeon,dear.Yearsofhardworkwillsurely_inthefutureofyourcareer.A.makesureB.payoffC.bringbackD.payback,B,4.castdown使沮丧观察示例:CloningScientistswerecastdowntofindthatDollysillnessesweremoreappropriatetoamucholderanimal.克隆科学家沮丧地发现多莉的病更容易在年老的羊身上。,Dontbesocastdown.Justkeepupyourspirits.不要这么沮丧,打起精神来！,归纳拓展：castdown沮丧castaway丢弃castoff放弃；丢弃castout赶走,即时练习：将下列句子译成英语(1)听到这个消息他很沮丧。_(2)发现事情的真相使他很沮丧。_,Hewascastdowntohearthenews.,Findingoutthetruthmadehimcastdown.,5.objectv.objectionn.观察示例:Ontheotherhand,Dollysappearanceraisedastormofobjectionsandhadagreatimpactonthemediaandpublicimagination.另一方面,多莉的出现引来了巨大的反对激发了传媒的热炒和公众的想像力。,词义vi.不赞成,反对n.物品,目标派生词objectionn.不赞成,反对常用搭配objecttosth/doingsth反对(做)某事,objecttosb反对某人have/take/makeanobjectionto(doing)sth对表示反对raiseanobjectionto(doing)sth对提出异议,即时练习:句型转换(1)Haveyouanyobjectiontomyopeningthewindow?=Wouldyou_myopeningthewindow?,object,to,(2)Itakeobjectiontosmoking.=I_smoking.(3)“Butheistooyoung,”sheargued.=She_thathewastooyoung.,object,to,objected,6.forbidvt.观察示例Somebegantoreformtheirlegalsystemsandforbaderesearchintohumancloning.一些政府开始改革他们的法律体系,禁止对人类克隆的研究。,词义vt.(tocommandsomeonenottodosomething)禁止,不准反义词allow允许,准许常用搭配forbidsth/doingsth禁止(做)某事forbidsbtodosth禁止某人做某事forbidthat禁止allowsth/doingsth允许(做)某事allowsbtodosth允许某人做某事,根据汉语提示完成句子。(1)He_(禁止吸烟)duringofficehours.(2)Manyparents_(禁止他们的孩子独自外出)atnight.(3)Marriage_(被禁止)duringcollegetimeinthepast.,forbidssmoking,forbidtheirchildrentogooutalone,wasforbidden,7.accumulatevt.butothercountrieslikeChinaandtheUK,continuedtoaccumulateevidenceoftheabundantmedicalaidthatcloningcouldprovide.有些国家比如中国和英国继续收集克隆能提供丰富的医疗帮助的证据。,Heaccumulatedfortunebyhardwork.他因努力工作而积蓄了一笔财富。Thepurposeofeducationisnotjustaccumulatinginformation.教育的目的不仅仅是积累知识。vi.积聚Dustaccumulatedduringmyabsence.我不在期间灰尘积聚了起来。,归纳拓展：accumulate可作及物动词和不及物动词，表示:收集,聚集,堆积。另外accumulationn.积聚如:theaccumulationofknowledge知识的积聚,即时练习：完成下列句子(1)Hequickly_(积蓄了一大笔财富).(2)Cloudsbeganto_(在天空中聚集).,large,in,accumulated,fortune,accumulate,sky,the,8.retirevi.观察示例:Heretiredattheageof65.他65岁退休。Hewillsoonretirefromthearmy.他不久将退役。Sheretiredearlythatnight.那天晚上她就寝得早。,即时练习：完成句子(1)Heworkedasaguardafter_(退役).(2)Thetroops_(从战地退了回来).fieldn.战地,the,army,field,retiring,from,retired,from,the,9.resistvt.观察示例:Otherswillsurviveandpassontheabilitytoresistthatdiseasetothenextgeneration.其他的将存活下来并传递其后代抵抗这种病的能力。,词义vt.(toremainfirmagainsttheactions,effects,orforceof)抵制,抵抗派生词resistancen.抵抗,反抗;抗性;抵抗力;耐性resistantadj.抵抗的;防的；抗的resistern.抵抗者resistibilityn.可抵抗性；抵抗力,常用搭配resistsh./doingsth.抵制某事/做某事cantresiststh/doingsth禁不住某事/做某事resisttheenemy/temptation抵抗敌人/抵制诱惑,根据汉字提示完成句子(1)Wearedeterminedtostayand_(抵抗敌人).(2)Tom_(忍不住开玩笑)abouthisstrangehairstyle.(3)Quiteafewpeopleinpower_(抵制不住金钱的诱惑)anddisobeythelaw.,cantresistthe