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1、英语：Unit1ArtSubjunctiveMood一.语气的分类陈述语气Iwenttothetheatreyesterday. Jackhadn’tcomebackhomeyet.祈使语气Let’sgo. Don’ttouchanythingonthetableuntilthebellrings虚拟语气IfIwereyou,Iwouldnotleaveheralone. Ourteachersuggestedthatwegotothelibrarythisafternoon.条件句表示主句的条件
2、,分真实条件句和虚拟条件句两种。a.真实条件句表示条件是真的或有可能实现的,采用陈述语气。b.虚拟条件句表示条件是无法实现或几乎无法实现的,采用虚拟语气。二.‘if’虚拟条件句的概念由‘if’引导的虚拟条件句叫作‘if’虚拟条件句IcouldeasilyrecognizeifIhadseenhimbefore.其他虚拟条件句Withoutyourhelp,Icouldn’thavefinishedmyworkontime.三.ifSentenceStructure ‘if’虚拟条件句的结构a.表示
3、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.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”。虚拟语气IfIwereaboy,Iwouldjointhearmy.Whatwouldyoudoifyouwonthelottery?IfIwonthelottery,Iwould…IfIwonthelottery
4、,Iwouldbuyanexpensivecar.IfIhadalotofmoneyIwouldbuyavilla.IfIhadalotofmoneynow,Iwouldtravelaroundtheworld.Ifitwerefinenow,Iwouldgoshopping.a.Ifthey____(be)here,they__________(take)youradvice.b.Iftheworld-war_____(burst)outagain,what_____________(happe
5、n)toourpeopleonearth?werewouldtakeburstwouldhappenPRACTICE1:Fillintheblanks.c.Ifthepoliceman________(benot)inthatroom,it________(be)verydangerous.d.IfI____(be)inyourposition,I_________(ask)forteacher’shelp.werenotcouldbewerewouldask2.与过去的事实相反从句的谓语用had
6、＋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__________morecarefully,he_________________thecaraccidentyesterday.haddrivenwouldnothavehadIfI________howtoswim,I__________________trappedinthisisland.
7、hadlearntwouldnothavebeena.IfTom________(be)morecarefulintheexam,he________________(pass)italready.b.Ifyou_______(get)upearlier,you________________(catch)thefirsttrain.hadbeenwouldhavepassedhadgotwouldhavecaughtPRACTICE2:Fillintheblanks.c.IfI_______(m
8、eet)youyesterday,we______________(go)totheconcerttogether.hadmetwouldhavegone3.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/might＋动词原形。Ifhegotupearly,hewouldbeontime.假如他来了,我们对他说什么呢？Ifhewereto
