unit3 tomorrow’s world —task学案

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1、Unit3Tomorrow’sWorld—Task学案　　Unit3Tomorrow’sWorld—Task学案　　★Teachingaims:　　1.HelptheSstoimprovetheirlisteningabilityandtheirskillsoftellingthefactsandstatingpersonalopinions.　　2.MakesurethattheSsknowthedifferencebetweenthefactsandopinions.　　Teachingprocedures:　　Skillbuilding1:di

2、stinguishingbetweenfactsandopinions　　Stepone:completinganotesheet　　Skillbuilding2:askingforinformation　　Steptow:findingoutaboutthecomputerroom　　Skillbuilding3:formalwriting　　Stepthree:writingaproposalforanewcomputerroom　　★Usefulwordsandexpressions　　1.Therefore,Iamwritingtoyouto

3、voicemyopinions.　　(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’t

4、adviseyouaboutit.　　=Mr.BrownknowslittleaboutChina,______hecan’tadviceyouaboutit.　　=Mr.BrownknowslittleaboutChina.________,hecan’tadviceyouaboutit.　　(2)opinion　　Eg.What’syouropinionofthenewplan?　　Everyonehadadifferentopiniononthesubject.　　insb.’sopinion　　haveagood/bad/high/lowop

5、inionof…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’stimeyo

6、ushouldtakeaction.　　=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

7、　　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；　　ar

8、escueparty救援队　　eg.Thesoldierrescuedthebabyfromtheruins