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1、TheSubjunctiveMood虚拟语气GrammarHehas…Daydreaming……1.英语中的三种语气陈述语气：用于陈述事实。祈使语气：用于提出请求、命令等。虚拟语气：①表示说话人说的不是事实而是一种假设、猜想等。②表示说话人的愿望、要求、命令、建议等。2.一.虚拟语气在条件从句中的用法条件句有两类，一类是真实条件句，一类是虚拟条件句。（1）真实条件句：假设的情况是有可能发生的。Ifitdoesn’traintomorrow,wewillgotothepark.（2）虚拟条件句：假设的情况是过
2、去或现在都不存在的，或将来都不可能发生的。Ifhehadseenyouyesterday,hewouldhaveaskedyouaboutit.3.1.与现在事实相反从句-----过去式(be通常用were)，主句----should(would,could,might)+动词原形”：IfIknewhernumberIcouldringherup.Ifhewerefree,hewouldhelpus.Should用于第一三人称would表示结果，might表示可能性，could表示能力、允许或可能性4.If
3、IhadalotofmoneyIwouldbuyavilla.5.1.如果我是只鸟，我就能在天上飞了。IfIwereabird,Icouldflyinthesky.2.IfI______(有)aknife，I___________(就杀了)you。hadwouldkill6.2.与将来事实相反或将来的愿望推测从句----did/should+do/weretodo主句-----should/would/could/might+do7.Ifhegotupearly,hewouldbeontime.8.3、与过
4、去事实相反从句——haddone主句——should/would/could/might+havedone9.Ifhe__________morecarefully,he_________________thecaraccidentyesterday.haddrivenwouldnothavehad10.虚拟语气在条件状语从句中的用法总结时态If从句的谓语形式主句的谓语形式现在过去未来did/werewould/could/should/might+V.(原)would/could/should/might
5、+have+p.p.1.did/were2.shoulddo3.weretodowould/could/should/might+V.(原)haddone11.二：交叉虚拟主从句动作发生的时间不同时，按时间来确定虚拟形式。Iftheweatherhadbeenbetter,thecropswouldbegrowingstillbetter.12.Ifitwerenotforyouradvice,wecouldn’thavegotoverthedifficulties.Wereitnotforyouradvi
6、ce,wecouldn’thavegotoverthedifficulties.13.当If条件句中有were,had,should这三个助动词时，可将If省略，从而将这三个助动词放到句首。14.without和butfor构成虚拟。(butfor要不是)Withoutsunlight,people’slifewouldbedifficult.Butforyourhelp,Iwouldn’thavefinishedthework.15.otherwise,or,orelse等的虚拟用法Shewasn’tfe
7、elingverywell.Otherwiseshewouldn’thaveleftthemeetingsoearly.16.高考链接：Jackcan’thavearrivedyet,otherwisehe_____me.wouldphonedB.phonedC.wouldhavephonedD.hadphoned17.三、虚拟语气在名词从句中的用法A.用于宾语从句wish+宾语从句现在：过去：将来：过去时(did/were)过去完成时(haddone)would/could/might/should+V.
8、18.2.wouldrather--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19.Would/hadrather(not)havedonesth宁愿过去（没）做了某事20.一个坚持：insist两个命令：orde
