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1、SubjunctivemoodGrammar一、语气的分类英语的动词一般可带三种不同的语气: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来表示。关于陈述语气1关于陈述语气2关于祈使语气1关于祈使语气2关于祈使语气3我们学过的虚拟语气1.表示要求、命令、建议的虚拟语气。使用should+动词原形，或者将should省略。常见动词:一个坚持，两个命令，三个建议，四个要求。即1)insist2)order,command3)advise,suggest,propose4)demand,require,reques
2、t,askIsuggestthatwe(should)holdameetingnextweek.Heinsistedthathe(should)besentthere.注意：如suggest,insist不表示“建议”或“坚持要某人做某事时”,即它们用于其本意“暗示、表明”、“坚持认为”时,宾语从句用陈述语气。1)Theguardatgateinsistedthateverybody____(obey)therules.2)Heinsistedthatshe___(be)seriouslyillandthat_____
3、_(send)tohospitalatonce.obeywasbesent3)Hesuggestedthatwe____(have)ameetingatonce.4)Hispalefacesuggestedthathe____(be)ill.havewas以上动词相应的名词构成的名词性从句包括主语从句、表语从句和同位语也要使用虚拟语气，从句中的动词形式为(should)+动词原形order,advice,suggestion,proposal,demand,request2.It’snecessary/strange/
4、natural/important/pity/nowonder/impossible+that从句,从句中的动词要用虚拟，即(should)+动词原形★我们掌握一门外语是非常重要的。Itisimportantthatwe(should)masteraforeignlanguage.★很奇怪她竟然拒绝来参加聚会。Itisstrangethatsherefusetocometotheparty.★我们有必要努力学习。It’snecessarythatweshouldstudyhard.我们该去睡觉了。3.It’s(abou
5、t/high)time+that过去时(were)should(不省)+V.你该走了。It’shightimethatyouwent.It’shightimethatyouweregoing.It’shightimethatyoushouldgo.It’stimethatwewenttobed.It’stimethatweshouldgotobed.if引导的虚拟条件句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
6、(should/could/might)＋doWouldshould/could/might+doWould(should/could/might)＋have+done如果现在不下雨的话,我们就出去野餐了。Ifitwerenotraining,weshouldgoforapicnic.如果他来这儿,他就能够帮助你了。Ifhecamehere,hemightbeabletohelpyou.要是当初她被邀请的话，她就会去参加这次聚会了。Shewouldhavegonetothepartyifshehadbeeninvite
7、d.今天早上，她要是不叫我的话，我就会睡过头了。Ifshehadn'tcalledme,Iwouldhaveoversleptthismorning.明年我要是二十岁，我就会学法语。IfIweretobetwentyyearsoldnextyear,IwouldtakethecourseofFrench.要是失败了，我会再试一次。Ifitshouldfail,Iwouldtryagain.1.如果你早来5分钟,你就赶上这趟车了。Ifyou_______herefiveminutesearlier,you________
8、_________thebus.2.如果我现在不忙,我就来帮你了。IfI____notbusy,I__________younow.3.如果明天下雪了,我们怎么办？What______wedoifit____________tomorrow?hadgotwerewouldhelpshouldweretosnowwouldhavec
