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人教课标高二选修6Unit2虚拟语气（二）本节课我们巩固复习虚拟语气，主要复习if条件从句和wish宾语从句中表示过去情况的虚拟语气的用法，以及虚拟语气在其他从句中的运用。【观察体会】请看下图及对话，体会表示过去的虚拟语气的用法。A:Whydidn’tPetertakehisumbrellatoworktoday?B:Hedidn’tknowitwasgoingtorain.Ifhehadknownitwasgoingtorain,hewouldhavetakenhisumbrellatowork.A:IwonderwhyJohnranbywithoutsayinghello.B:Hemusthavebeeninahurry.A:You’reprobablyright.Ifhehadn’tbeeninahurry,hewouldn’thaverunbywithoutsayinghello.Ididn’tknowhowtogetaroundthecitywhenImovedhere.Iwassoconfused.A:Youknow,IwishIhadknownhowtogetaroundthecitywhenImovedhere.B:Oh,really?Why?A:IfIhadknownhowtogetaroundthecitywhenImovedhere,Iwouldn’thavebeensoconfused.B:Iknowwhatyoumean.表示过去if条件从句条件从句的谓语had+过去分词主句的谓语should/would/could/might+have+过去分词wish宾语从句中的谓语had+过去分词【归纳总结】虚拟语气特殊句型1.wish的宾语从句现在:过去时（were）过去:过去完成时将来:would/could/might+v.should下面我们再来看看其他形式的虚拟语气的用法。1.IwishIwereabird.(现在)2.IwishIhadn’tmadesuchamistake.(过去)3.Wewishourparentswouldn’tpunishus.(将来)IwishIwereastallasyou.Hewishedhehadn’tsaidthat.Iwishitwouldraintomorrow.wishtodo表达法wishsb./sth.todoIwishtoseethemanager.=Iwanttoseethemanager.Iwishthemanagertobeinformedatonce.=Iwantthemanagertobeinformedatonce.2.wouldratherthat现在:过去时过去:过去完成时将来:过去时e.g.Iwouldratheryoupaidmenow.Iwouldratheryouhadgone,too.Don’tcome.Iwouldratheryoucametomorrow.3.asif/though+clause现在:过去时过去:过去完成时在asif/asthough后的从句中，常用一般过去时或“would/could/should/might+动词原形”来表示与现在或将来的事实相反或不太可能实现的事情。Theytalkedasiftheyhadbeenfriendsforyears.Helooksasifheweredrunk.e.g.Shelovesthebabyasifitwereherownson.Irememberthewholethingasifithadhappenedyesterday.4.It’s(about/high)time+that过去时should+v.你该走了。It’shightimethatyouwent.It’shightimethatyouweregoing.It’shightimethatyoushouldgo.我们该去睡觉了。It’stimethatwewenttobed.It’stimethatweshouldgotobed.5.without和butfor构成虚拟。butfor要不是Withoutsunlight,people’slifewouldbedifferentfromtoday.Butforyourhelp,Iwouldn’thavefinishedthework.Withoutyourhelp,Iwouldhavefailed.Butforwater,itwouldbeimpossibletoliveinthedesert.6.Ifonly…要是就好了e.g.IfonlyIknewhisname!Ifonlywehadfollowedyouradvice!IfonlyIcouldseehimagain!要是我们的父母能和我们住在一起就好了!Ifonlyourparentscouldlivewithus!要是我没错过火车就好了！IfonlyIhadn’tmissedthetrain!练习7.在主语、表语、同位语从句中，虚拟语气用“should+动词原形”或动词原形来表示。这样的句型有：Itisstrange/natural/important/nowonder/impossible/necessary/apity/...that...；Myadvice/suggestion/requirement/...isthat...等。e.g.Itisimportantthatwe(should)masteraforeignlanguage.Itisstrangethatsherefusetocometotheparty.It’snecessarythatweshouldstudyhard.8.某些简单句的固定句型:Heavenhelphim!Godblessyou!Mayyousucceed!LonglivethePeople’sRepublicofChina!9.need“不必做”和“本不该做”didn’tneedtodo表示:过去不必做某事,事实上也没做。needn’thavedone表示:过去不必做某事,但事实上做了。约翰开车去车站接玛丽,所以她不必步行回家了。JohnwenttothestationwiththecartomeetMary,soshedidn’tneedtowalkbackhome.约翰开车去车站接玛丽,所以她本不必步行回家了。(Mary步行回家,没有遇上John的车。)JohnwenttothestationwiththecartomeetMary,sosheneedn’thavewalkedbackhome.Therewasplentyoftime.She____.A.mustn’thavehurriedB.couldn’thavehurriedC.mustnothurryD.needn’thavehurried典型例题答案D。needn’thavedone.意为“本不必”,即已经做了某事,而实际上不必要。mustn’thavedone用法不正确,对过去发生的事情进行否定性推断应为couldn’thavedone,“不可能已经”。mustnotdo不可以(用于一般现在时)根据语境，用虚拟语气完成下列对话。1.A:Whydidn’tyougotothemovieswithyourfriendslastnight?B:Iwasn’tinthemoodtoseeafilm.If________________________________________________________________________________________Ihadbeeninthemoodtoseeafilm,Iwouldhavegonetothemovieswithmyfriendslastnight.2.A:Whydidn’tyoudoyourhomeworklastnight?B:Ididn’tbringmybookhome.If__________________________________________________________________________________________Ihadbroughtmybookhome,Iwouldhavedonemyhomeworklastnight.3.A:IwonderwhyMomwenttosleepsoearly.B:Shemusthavehadaharddayattheoffice.A:You’reprobablyright.If_______________________________________________________________________________shehadn’thadaharddayattheoffice,shewouldn’thavegonetosleepsoearly.4.A:Iwonderwhymybarbercutmyhairsoquicklytoday.B:Hemusthavehadalotofcustomersafteryou.A:You’reprobablyright.If________________________________________________________________________________________hehadn’thadalotofcustomersafterme,hewouldn’thavecutmyhairsoquicklytoday.5.Ididn’thavemyshoppinglistwithmethismorning.Iforgottobuyeggs.A:Youknow,Iwish_______________________________________________B:Oh,really?Why?A:If__________________________________________________________________________________B:Iknowwhatyoumean.Ihadhadmyshoppinglistwithmethismorning,Iwouldn’thaveforgottentobuyeggs.Ihadhadmyshoppinglistwithmethismorning.6.Iwasn’tpreparedformyEnglishtest.Igotalowgrade.A:Youknow,Iwish________________________________________B:Oh,really?Why?A:If________________________________________________________________B:Iknowwhatyoumean.IhadbeenpreparedformyEnglishtest,Iwouldn’thavegotalowgrade.IhadbeenpreparedformyEnglishtest.【高考链接】从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。1.We_____John’snameontheracelistyesterdaybutforhisrecentinjury.A.willputB.willhaveputC.wouldputD.wouldhaveput2.MaybeifI_____science,andnotliteraturethen,Iwouldbeabletogiveyoumorehelp.A.studiedB.wouldstudyC.hadstudiedD.wasstudying3.Georgeisgoingtotalkaboutthegeographyofhiscountry,butI’dratherhe_____more