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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suggestion/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1.Hissuggestionthatyou_____oncemoresoundsreasonable.A.tryB.triesC.musttryD.cantry2Shemadethedemandthatthejournalists_____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)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)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.WereItomeethimtomorrow,…Shouldhefailintheexperiment…二、省略if的条件从句IfIhadfollowedyouradvice,Iwouldn’thavemadesuchfoolishmistakes.HadIfollowedyouradvice,…Hadyoulistenedtothedoctor，you________allright.A.areB.wereC.wouldbeD.wouldhavebeen2由介词或介词短语暗示的虚拟结构without(没有)butfor(要不是)withotherwise1.Withoutsunlight,orwaterorair,there___nolifeontheearth.AwillhaveBwouldbeCcanbeDmustbe2Butforthesnow,we___earlier.AwillarriveBwouldhavearrivedCarriveDarrived五、虚拟语气在其他从句中1.Itis(high/about)timethat…“到做----的时间了.”注意:should不能省略．过去时should+V原.我们该去睡觉了。It’stimethatwewenttobed.It’stimethatweshouldgotobed.15.Itishightimethechild______tothehospital.A.issentB.wouldbesentC.mustbesentD.weresent2.Ifonly引导的感叹句“要是．．．该有多好啊”IfonlyI_______(ask)thequestionnowIfonlyI__________(see)thefilmyesterday!askedhadseenIt’shightimethey____________thisroad.A.mendB.mendedC.musthavemendedD.willmendIfonlyI________drivingbefore.A.hadlearnedB.learnedC.learnD.wouldlearn3.Wish现在：过去：未来：过去时（were）过去完成时would/could/might+V.1.IwishI______abirdAisBwereCwillbeDare2.HowIwishthatI___themoonsometimeinthefuture.AhadvisitedBwouldvisitCvisitedDwillvisit1.wouldratherthat现在：过去：未来：过去时过去完成时过去时Iwouldratheryoupaidmenow.Iwouldratheryouhadgone,too.Don’tcome.Iwouldratheryoucametomorrow.1.判断是否虚拟2.判断虚拟类型3.判断虚拟时间