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1、语气英语的动词一般可带有三种不同的语气：陈述语气，祈使语气和虚拟语气。不同的语气用动词的不同形式（有的还借助句法形式）来表示。Wemetinthisroom.Cometomyofficeafterclass.IfIwereyou,Iwouldnotdothis.陈述语气祈使语气虚拟语气Grammar—theSubjunctiveMood虚拟语气虚拟语气（TheSubjunctiveMood)1、虚拟语气：表示说话人的愿望、假设、猜测或建议，而不表示客观存在的事实。2、虚拟语气通过谓语动词的特殊形式来表示。一个坚持两个命令四个建议四个要求注：以上动词的名
2、词形式用于同位语从句中，从句中的动词也是用“(should)+动词原形”insistorder,commandadvise,suggest,propose，recommenddemand,require,request,urgesuggest当表示“暗示、表明“讲时，insist表示”坚持说“之意时，应用陈述语气。4.Jane’spalefacesuggestedthathe___ill.AbeBwasCshouldbeDis5.Heinsistshe______right.A.wereB.wasC.beD.is用于表语、同位语、主语从句在sugges
3、tion/proposal/order//advice/request/demand等名词后的表语和同位语从句中要用“should＋动词原形”should可以省略．2.Itissuggested/ordered/requested/proposed/demandedthat从句…从句中的谓语动词用should+动词原形，should可以省略考题点击Hissuggestionthatyou_____oncemoresoundsreasonable.A.tryB.triesC.musttryD.cantry2Shemadethedemandthatthej
4、ournalists_____atonceforIraq.A.leaveB.leavingC.leftD.tobeleftWeareinfavorofyourproposalthatthemeeting______.A.shouldbeputoffB.wasputoffC.shouldputoffD.istoputoffif引导的虚拟条件句IfSentenceStructure ‘if’虚拟条件句的结构a.表示与现在事实相反的假设b.表示与过去事实相反的假设c.表示与将来事实相反的假设1)IfIwereyounow,Ishouldn'tdothat.2
5、)Ifwehadtimeatpresent,wewouldgowithyou.3)Ifhewerehereatthemoment,wecouldaskhim.4)IfIknewhistelephonenumber,Iwouldringhimup.条件从句主句1.表示与现在事实相反did（be动词一般用were）would/should/could+do1)Ifhehadseenyouyesterday,hewouldhaveaskedyouaboutit.2)Ifyouhadcomeearlier,youwould(might)havemethim.3
6、)IfIhadknownyourphonenumberinadvance，Iwouldhavecalledyou.(提前)条件从句主句2.表示与过去事实相反had+donewould/might+havedone1)Ifitshouldrainnextweek,thecropswouldbesaved.2)Ifitweretosnowtomorrow,theywouldsleep.3)Ifitrainedtomorrow,wewouldnotgoout.条件从句主句didshoulddoweretodoWould+do3.表示与将来事实可能相反与现在相
7、反与过去相反与将来相反If从句主句did（be用were)had+donedid（be用were)wereto+doshould+doWould＋do(should/could/might)Would+doshould/could/mightWould＋have+done(should/could/might)二、省略if的条件从句IfIweretomeethimtomorrow,Ishouldaskhimaboutit.Ifheshouldfailintheexperimentthistime,hewouldtryagain.WereItomeeth
8、imtomorrow,…Shouldhefailintheexperiment…二、省略if的
