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1.英语动词有三种语气，陈述语气，祈使语气和虚拟语气.2.定义：用来表示说的话不是事实，或者是不可能发生或可能性比较小的情况，而是一种愿望，建议，假设的语气叫虚拟语气。一、虚拟语气定义二分类记忆•1固定模式，不需区分时间的•可看作是个固定句型来学习，注意should的有无，是记忆重点1)It’shightime+that-should+V.过去时2）It’snecessary/strange/natural/importantapity+that---从句中的动词要用虚拟，即(should)+动词原形3）表示要求，建议，命令等名词性从句中，从句用(should)+动词原形(Idropcars.)insist\demand\request\require\recommendorder\propose\command\advise\suggest1).It’shightime+that-should+V.过去时你该走了。我们该睡觉了。It’shightimethatyouwent.It’shightimethatyoushouldgo.It’stimethatwewenttobed.It’stimethatweshouldgotobed.2）It’snecessary/strange/natural/importantapity+that---从句中的动词要用虚拟，即(should)+动词原形1.Itisimportantthatwe(should)masteraforeignlanguage.2.Itisstrangethatsherefusetocometotheparty.3.It’snecessarythatweshouldstudyhard.3）名词性从句的虚拟语气。主要是表示命令、要求、建议的虚拟语气。1.宾语从句。常见动词：一个坚持：insist两个命令：order,command三个建议：advise,suggest,propose五个要求：demand,require,request,desireask这些动词后面的宾语从句要使用虚拟语气用法。即从句中的动词使用should+动词原形，或者将should省略。2、以上动词相应的名词构成的名词性从句（包括主语从句，表语从句和同位语从句）也要使用虚拟语气。从句中的动词形式一样。order,advice,suggestion,proposal,demand,request,desire•It’ssuggestedthattheplanbecarriedout.•Mydemandisthatsheshouldcometoseemeonceaweek.•Allofusarefortheadvicethatthechemicalfactoryshouldbecloseddown.二分类记忆•2If引导的条件状语从句中。主句与从句分别通过不同的谓语动词变化形式，体现虚拟。简单说，从句通过时态的反常变化，(即用过去时表示现在/将来，用过去完成时表过去）；主句通过情态动词的过去式+do表现在，情态动词的过去式+havedone表过去。•学习难点重点：1从句与主句不同的体现方式，极易混淆；2注意区分时间1、一般条件句中的虚拟语气时间If条件句主句过去haddonewouldshould+havedonesthcouldmight现在助动词be用were实义动词do用didwouldshould+dosthcouldmight将来did/wereshoulddoweretodowouldshould+dosthcouldMight二分类记忆•3虚拟语气的体现方法与从句变化相似的几种特殊结构：1）wish+宾语从句现在：过去：未来：过去时(did/were)过去完成时(haddone)would/could/might+V.should2）wouldratherthat-现在：过去：未来：过去时过去时过去完成时3）asif/though+从句现在：过去：过去时过去完成时4）Ifonly…(要是…就好了)现在：过去：未来：过去时过去时过去完成时Ifonly1）wish+宾语从句现在：过去：未来：过去时(did/were)过去完成时(haddone)would/could/might+V.should•IwishIwereabird.(现在)•IwishIhadn’tmadesuchamistake.(过去)•Wewishourparentswouldn’tpunishus.(未来)2）wouldratherthat-现在：过去：未来：•Iwouldratheryoupaidmenow.(现在)•Iwouldratheryouhadgone,too.(过去)•Don’tcome.Iwouldratheryoucametomorrow.(未来)过去时过去时过去完成时3）asif/though+从句现在：过去：过去时过去完成时•Helooksasifheweredrunk.•Theytalkedasiftheyhadbeenfriendsforyears.•Shelovesthebabyasifitwereherownson.•Itseemsasifitwerespring.•Irememberthewholethingasifithadhappenedyesterday.4）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。•要是我没错过火车就好了！Ifonlyourparentscouldlivewithus!IfonlyIhadn’tmissedthetrain!二分类记忆•4虚拟语气的体现方法与主句变化相似的特殊结构-----含蓄条件句：1）含蓄条件句用without\butfor（要不是）\suppose\otherwise\or等构成虚拟代替if虚拟条件状语从句•Withoutsunlight,people’slifewouldbedifferentfromtoday.•Butforyourhelp,Iwouldn’thavefinishedthework.•Butforwater,itwouldbeimpossibletoliveinthedesert.三、虚拟语气假设条件句型注意点：1.假设条件从句谓语动词发生的时间与主句所假设的谓语动词不一致，叫做错综条件虚拟语气。主句和从句的谓语动词要依照假设的时间而定。Iftheweatherhadbeenfiner,thecropswouldbegrowingstillbetter.Ifyouhadfollowedtheteacher’sadvice,youwouldn’tbeinthehospital.三、虚拟语气假设条件句型注意点：2.省if倒装Summary一.should+动词原形A.suggest等引导的名词性从句B.Itis+adj./n.+that从句二.从句用过去时It’s（high/about)timethatsbdidsth三.根据所表示的事实的时间来判断A.wouldrather从句B.Iwish/ifonlyC.asif从句D.if条件句四.其它情态动词+havedone2.动词原形包括主/被动式1.didsth(与现在\将来的事实相反）haddonesth（与过去的事实相反）2.did/were现在haddone过去would/could/should+do（与将来的事实相反）3.省if倒装/错综条件句/用butfor等词替代1.注意suggest/insist的词义1.Thevolleyballmatchwillbeputoffifit_____.A.willrainB.rainsC.rainedD.israinedB精选习题2.Youdidn’tletmedrive.Ifwe____inturn,you____sotired.A.drove…didn’tgetB.haddriven…wouldn’thavegotC.drove…wouldn’tgetD.weredriving…wouldn’tgetB3.Ifyou_____himyesterday,you_____whattodonow.A.asked…wouldknowB.hadasked…wouldhaveknownC.askedhim…knowD.hadasked…wouldknow4.Whatwouldhavehappened,_____asfarastheriverbank?A.BobhadwalkedfartherB.ifBobshouldwalkfartherC.hadBobwalkedfartherD.ifBobwalkedfartherCD5.HowIwisheveryfamily_____alargehousewithabeautifulgarden!(02上海)A.hasB.hadC.willhaveD.hadhad6.Whenapencilispartlyinaglassofwater,itlooksasifit____.(95N)A.breaksB.hasbrokenC.werebrokenD.hadbeenbrokenBC.7-DoyoumindifIleavethewindowopen?-Well,I’dratheryou_____.A.don’tB.didn’tC.won’tD.mustn’t8.It’shalfpasteleven.It’shightime_____home.A.we’llB.we’dC.we’regoingD.wewentBD英语是一门全世界广泛应用的语言。我们掌握好英语是很有必要的。我希望英语能学得象母语一样好。但这看起来似乎是不可能的。你知道吗？我本来可以学好英语的。因为有人曾建议我每天背单词，背范文(possibleversion)，重视语法等等。但现在是我后悔的时候了。我想我要是当初听了这些建议的话，现在我的英语一定是很不错了。要是没有英语该多好啊！如果没有英语，每天我会更快乐！Englishiswidelyusedintheworld.Itisnecessarythatseniorstudentsmasteritwell.IwishEnglishwouldbelearntaswellasourmothertongue.Butitlooksasifitisn’tpossible.Doyouknow?IcouldhavelearntEnglishwell.BecauseitwassuggestedthatIrecitewordsandpossibleversions,paymoreattentiontogrammarandsoon.Butnowit’stimethatIregrettedit.IthinkifIhadfollowedthesesuggestions,myEnglishwouldbeverywonderfulnow.IfonlytherewerenoEnglish!WithoutEnglishIwouldbehappiereveryday!Possibleversion: