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1、虚拟语气与真实条件句的区别试比较下面的句子：1.Ifyoucomeheretomorrow,Iwillgiveyouahand.2.Ifyoucameheretomorrow,Iwouldgiveyouahand.3.Ifyoucameyesterday,Iwouldgiveyouahand.4.Ifyouhadcomeyesterday,Iwouldhavegivenyouahand.5.Ifitrains,Iwillnotcome.6.Ifitrained,Iwouldnotcome.7.Ifitshouldraintomorrow
2、,Iwouldnotcome.真实条件句：虚拟语气：真实条件句表示有实现的可能，然而虚拟语气指的是一种假设并不能实现。1，3，52,4,6,7虚拟语气讲解与练习 刘宏斌一．虚拟语气的种类虚拟语气一般分为四种，如下图所示：时间主句从句与现在事实相反Would/could/should/might+dodid/were与过去事实相反Would/could/should/might+havedonehaddone与将来事实相反Would/could/should/might+dodid/wereto/shoulddo混合时态虚拟语气Would
3、/could/should/might+do/bedoingWould/could/should/might+havedonehaddonebut+事实各个时态的例子1.与现在事实相反：IfIwereyou,Iwouldtakeallhisadvice.IfIhadtime,Iwouldgotherewithmyfriends.IfIhadenoughmoney,Iwouldbuyasecondcomputer.2.与过去事实相反：Ifyouhadtakenmyadvice,youwouldn’thavebeenpunished.Ify
4、ouhadstudiedhard,youwouldhavepassedtheexam.Ifithadn’tbeenfortheflood,wewouldhavegotagoodharvest.3.与将来事实相反：Ifitweretorain/shouldrain/rainedtomorrow,Iwouldn’tcome.Ifheweretocome/shouldcome/came,theproblemwouldbesettled.Shoulditraintomorrow,thesportsmeetwouldbedelayeduntiln
5、extweek.4.混合时态虚拟语气：Ifyouhadtakenmyadvice,youwouldn’tbecryinghere.Iwouldhavecometoyourhelp,butIwasbusyyesterday.虚拟语气在倒装句中的使用虚拟语气的从句如果省略if就要变成倒装句，例子如下：Wereittoraintomorrow,Iwouldn’tcometoyourhelp.Shoulditraintomorrow,Iwouldn’tcometoyourhelp.=IfWereittoraintomorrow,Iwouldn’
6、tcometoyourhelp.=IfitShouldraintomorrow,Iwouldn’tcometoyourhelp.Haditnotbeenforhishelp,Iwouldn’thavefinishedtheworkontime.=Ifithadn’tbeenforhishelp,Iwouldn’thavefinishedtheworkontime.结构：（1）were主语(not)todo,+主句（2）should主语(not)do，+主句（3）had主语（not)done,+主句虚拟语气在主语从句中的使用1.it+be
7、+suggested/advised/requested+thatsbshoulddo或者do.Itissuggestedthattheworkshouldbesettledrightnow.或Itissuggestedthattheworkbesettledrightnow.Itisadvisedthatmoreefforts(should)bemadetoimprovethequalityoftheproduct.Itisrequestedthateverybody（should)keeplawandorder.Itisordere
8、dthatallthesoldiers(should)makeclearwarningsbeforeshooting.虚拟语气在主语从句中的使用2.itisimportant/necessary/stran
