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1、Unit1ArtGrammar---虚拟语气SubjunctiveMoodDesignedbyMaria2014/03/25班级姓名一.语气的分类1.陈述语气(TheindicativeMood)用来陈述一个事实,或提出一种看法,有肯定，否定，疑问或感叹等形式。Iamnotinterestedinwhatyousaid.HaveyoueverbeentoFrance?Whatasplendidpalace!2.祈使语气(TheImperativeMood)用来表示请求，邀请，命令，警告或劝告等.Le
2、t’sgo.Don’ttouchanythingonthetableuntilthebellrings.3.虚拟语气(TheSubjunctiveMood)表示说话人所说的话不是事实,而是一中假设,愿望，怀疑或推测.虚拟语气主要用于if条件状语从句,也可用于名词性从句等.IfIwereyou,Iwouldnotleaveheralone.Ourteachersuggestedthatwegotothelibrarythisafternoon.二.‘if’虚拟条件句的概念：由‘if’引导的虚拟条件句叫
3、作‘if’虚拟条件句IcouldeasilyrecognizeifIhadseenhimbefore.其他虚拟条件句Withoutyourhelp,Icouldn’thavefinishedmyworkontime.三.‘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一.虚拟语气在条件状语从句中的用法。条件从句If从句的谓语形式主句的谓语形式与现在事实相反V.+ed/werewould/could/should/might+V(原形)与过去
4、事实相反haddonewould/could/should/might+have+p.p.与未来事实相反1.V.+ed.2.should+V.(原形)3.weretodowould/could/should/might+V.(原形)1.虚拟语气用于条件状语从句中(1)表示与现在事实相反的假设,条件状语从句中的谓语动词用“过去式(be动词的过去式用were)”,而主句中的谓语动词“would/should/could/might+动词原形”。IfIwereaboy,Iwouldjointhearmy.
5、Whatwouldyoudoifyouwonthelottery?IfIwonthelottery,Iwould…Ifitwerefinenow,Iwouldgoshopping.PRACTICE1:Fillintheblanks.a.Ifthey____(be)here,they__________(take)youradvice.b.Iftheworld-war_____(burst)outagain,what_____________(happen)toourpeopleonearth?c.I
6、fthepoliceman________(benot)inthatroom,it________(be)verydangerous.d.IfI____(be)inyourposition,I_________(ask)forteacher’shelp.2.与过去的事实相反从句的谓语用had＋过去分词,构成IfI(we,you,he,they)＋had＋过去分词的形式；主句的谓语用should(第一人称)/would(第二、三人称)/could/mighthave＋动词过去分词。Ifhe______
7、____（drive）morecarefully,he_________________（have）thecaraccidentyesterday.IfI________（learn）howtoswim,I__________________（be）trappedinthisisland.PRACTICE2:Fillintheblanks.a.IfTom________(be)morecarefulintheexam,he________________(pass)italready.b.Ifyou
8、_______(get)upearlier,you________________(catch)thefirsttrain.c.IfI_______(meet)youyesterday,we______________(go)totheconcerttogether.3.与将来事实相反从句的谓语用IfI(we,you,he,they)＋动词过去式或weretodo或shoulddo形式,主句谓语用should(第一人称)/would(第二、三人称)/could/mig
