资源描述：
《大学英语语法讲座_虚拟语气》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、在虚拟条件句中：(一)三种基本形式：1)与现在事实相反的假设If…V.ed, ...wouldshouldmightcould+VIf youkneweverythingnow,youwouldnotbesoangrywithhim.2)与将来事实相反的假设①If…V.ed, ...wouldshouldmightcould+V②Should+V…③Wereto+V… Ifhehadenoughmoneynextyear,hemightgoabroadsoon.3)与过去事实相反的假设If…+
2、had+V.ed, ...wouldshouldmightcould+have+V.edIfIhadknownhisnumber,Imighthavetelephonedhimyesterday. Forexamples:1.Ifyouhadtakenmyadvice,youwouldnothavefailedintheexperimentsomanytimes.2.Theywouldhavegotsometicketsthatnightiftheyhadgottotheticketsofficeearl
3、y.3.Ifyouhadspokentohimlasttimeyousawhim,youwouldknowwhattodonow.4.IfIwereyou,Iwouldnothavemadesomanymistakeslastnight4(二)几种特殊形式：1）．省略“if”引起倒装:将were/had/should提前1．IfIwereyou,Imightchoosethisone.WereIyou,Imightchoosethisone.2．IfIhadknownhisnumber,Imighthavete
4、lephonedhimyesterday.HadIknownhisnumber,Imighthavetelephonedhimyesterday.2）．otherwise,butfor,without,butthat,exceptfor,only,but,or…1.Withoutelectricitywewoulddonothing.2.Butforyourhelp,wecouldnothavefinishedthetasksowell.3.Icaughtherbythehand.Otherwiseshewou
5、ldhavefallenintothesea.4．____hewasseriouslyill,Iwouldnothavetoldhimthetruth.a)IfIknew b)ifIknow c) HadIknown d)DidIknow5． Wecouldnothavefulfilledthetaskintimeifit----------fortheirhelp.a)wasnot b)isnot c)hadnotbeen d)ha
6、snotbeen3）．在表示祈愿的动词wish后：①对现在的虚拟要用V.ed；②对将来的虚拟要用could/might/would/should+V;③对过去的虚拟要用had+V.ed或could/ might/would/should have +V.ed；4如：I wish I had bought the house. I wish you could have passed the test. He wishes he were my age. We wish you would try again.
7、Theboywisheshehadwings.Howshewishesshehadn’tlefthome!4）．在It’s(high)time结构后：V.edIt’shightimeyoulefthomeforwork.It’stimeforyoutoleavehometowork.5）．在‘drather后：wouldrather,wouldsooner,hadrather也用来表达主观愿望,谓语动词用过去式表示现在或将来，用过去完成式表示与过去事实相反。表示"宁愿做什么"或"对过去做的事的懊悔"。We’dr
8、atheryoulivedfarawayfromus.We’dratherwehadn’tbeentherebefore.6）．在表示祈愿的ifonly后：谓语动词用过去式或过去完成式(谓语动词与wish宾语从句的虚拟形式相同).If only you hadn’t told Linda what I said.IfonlyIknewhowtodoit.Ifonlytheyhadn’t
