高中英语：unit3 Tomorrow's world-task学案（牛津译林版必修4）.doc

高考资源网（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。用心爱心专心高考资源网（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。Unit3Tomorrow’sWorld—Task学案★Teachingaims:1.HelptheSstoimprovetheirlisteningabilityandtheirskillsoftellingthefactsandstatingpersonalopinions.2.MakesurethattheSsknowthedifferencebetweenthefactsandopinions.Teachingprocedures:Skillbuilding1:distinguishingbetweenfactsandopinionsStepone:completinganotesheetSkillbuilding2:askingforinformationSteptow:findingoutaboutthecomputerroomSkillbuilding3:formalwritingStepthree:writingaproposalforanewcomputerroomUsefulwordsandexpressions1.Therefore,Iamwritingtoyoutovoicemyopinions.(1)thereforeadv.因此，所以Eg.Heworkeddayandnight,andthereforehewasabletobuythesportscar.Hewastheonlycandidate.Therefore,hewaselected.Therefore和so两词都作“因此”讲。Therefore作因此讲时是副词，通常不用来连接两个分句；而so是连词，因此他可以用来连接两个分句。Eg.Mr.BrownknowslittleaboutChinaandthereforehecan’tadviseyouaboutit.=Mr.BrownknowslittleaboutChina,______hecan’tadviceyouaboutit.=Mr.BrownknowslittleaboutChina.________,hecan’tadviceyouaboutit.(2)opinionEg.What’syouropinionofthenewplan?Everyonehadadifferentopiniononthesubject.insb.’sopinionhaveagood/bad/high/lowopinionof…对…评价好/不好/高/低give/express/voiceanopinion(on…)对…发表意见2.Inmyopinion,itisabouttimewehadnewcomputers.Itis(high/about)timethat后面的从句谓语动词通常用过去时表示现在或将来，有时也用“should＋动词原形”(should不可省略)，其意为“早该做某事了”Eg.It’shightimeyouclameddownandsetaclearaimforyourself.Inmyopinion,it’stimeyoushouldtakeaction.=Inmyopinion,it’stime______takeaction.3.Duringthejourney,theprofessorandhisnephewcomeacrosstheCentralSea,abigundergroundocean.Comeacross(不用于被动语态)（1）（偶然）遇见，碰到，发现（across为介词，后接宾语）Eg.Icameacrossthechildrensleepingunderthebridgetheotherday.(2)vi.被理解，被弄懂It’sapitythatyourmeaningdidn’t________.很遗憾你的意思没有真正被理解。（3）提供，给予（常与介词with连用）Ihopeshewouldcomeacrosswithsomemoreinformation.Comeabout发生Comeout（太阳，月亮或星星）出现；出版Cometrue实现你能告诉我事故是怎样发生的吗？4.rescuevt.＆n.营救；援救常用于：rescuesb.(from…)营救某人；come/go/toone’srescue来/去救援某人；arescueparty救援队eg.Thesoldierrescuedthebabyfromtheruins.5.forcen.力量，武力；效力辨析：force指物理学意义上的力，尤指人或物撞击或推动物体时所用的力；也指