高中英语 语法.剖析.活用（Module 6　War and Peace）教学素材 外研版选修6.doc

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1、语法·剖析·活用虚拟语气（SubjunctiveMood）(Ⅱ)虚拟语气的非真实条件句用法在if引导的非真实条件句中,谓语动词有以下三种形式:虚拟情况从句谓语主句谓语与现在事实相反过去式(were,did)would(should,could,might)+动词原形与将来事实可能相反过去式weretodoshoulddowould(should,could,might)+动词原形与过去事实相反had+过去分词would(should,could,might)+have+过去分词如:IfIwereinyourpositi

2、onIwouldmarryher.(现在)IwouldcertainlygoifIhadtime.（现在）IfIhadsetoffalittleearlier,Iwouldhavecaughtthetrain.(过去)Ifyouhadcomehere,youwouldhaveseenhim.(过去)Ifitrained/weretorain/shouldraintomorrow,thecropswouldbesaved.(将来)值得注意的是:含蓄条件句:有时条件句并非由if来引导,而是由or,otherwise,wit

3、h,without,butfor等词来引导。如:Butforyourhelp,Icouldn’thavesucceeded.倒装条件句:如果省略if,则要用倒装语序。如:HadIhadtimelastweek,IwouldhavegonetoBeijing.(=IfIhadhadtimelastweek,IwouldhavegonetoBeijing.)Wereshetoleavetoday,shecouldarrivenextMonday.(=Ifsheweretoleavetoday,shecouldarriven

4、extMonday.)混合时间句:从句和主句的动作不是发生在同一时间,这时候应该视实际情况来选择合适的时态。如:Ifyouhadstudiedhardbefore,youcouldknowtheanswernow.(从句发生在过去,主句发生在现在)虚实错综句:同一句子中,既有虚拟语气,又有陈述语气,这时应该分开对待。如:Einsteincouldhavebeenveryrich,buthecaredlittleformoney.(前句是虚拟语气,后句是陈述语气)1用心爱心专心