人教课标高二选修6Unit2虚拟语气（二）本节课我们接着学习虚拟语气，主要学习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】【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.我希望和你一样高。Hewishedhehadn’tsaidthat.他希望他没讲那样的话。Iwishitwouldraintomorrow.我希望明天下雨就好了。2)wishtodo表达法wishsb./sth.todoIwishtoseethemanager.=Iwanttoseethemanager.Iwishthemanagertobeinformedatonce.=Iwantthemanagertobeinformedatonce.2.wouldratherthat现在:过去:将来:Iwouldratheryoupaidmenow.Iwouldratheryouhadgone,too.Don’tcome.Iwouldratheryoucametomorrow.过去时过去时过去完成时3.asif/though+clause现在：过去：过去时过去完成时在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.Shelovesthebabyasifitwereherownson.Itseemsthatitwerespring.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!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。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。)Johnwenttothe...
