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1、英语语法大全整本收录（十六）虚拟语气16.虚拟语气1）概念虎拟语气用來表示说话人的主观愿與或假想，所说的是一个条件，不一定是爭实，或与事实相反。2）在条件旬中的应用条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故釆用虚拟语气。16.1真实条件句真实条件句用于陈述语气，假设的情况可能发生，其中if是如果的意思。时态关系句型：条件从句主句般现在时shall/will+动词原形Ifhecomes,hewillbringhisviolin.典型例题Thevolleyballmatchwillbeputoffifit.A.willrainB.
2、rainsC.rainedD.israined答案B。宾实条件句主句为将来时，从句用一般现在时"注意：1）在真实条件句中，主句不能用begoingto表示将来,该用shall,will.（错）Ifyouleavenow,youarenevergoingtoregretit.（对）Ifyouleavenow,youwillneverregretit.2）表示真理时，主句谓语动词便不川shall（will）+动词原形，而直接用一般现在时的动词形式。16.2非真实条件句1）时态：可以表示过去，现在和将來的情况。它的基木特点是时态退后。a.同现在事实相反的假设。句型：条件从旬主句一般过去时shoul
3、d（would）+动词原形Iftheywerehere,theywouldhelpyou.b.表示于过去事实相反的假设。句型：条件从句主旬过去完成时should（would）have+过去分词Ifshehadworkedharder,shewouldhavesucceeded.Thericewouldnothavebeenburntifyouhadbeenmorecareful.IfmylawyerhadbeenherelastSaturday,hewouldhavepreventedmefromgoing.Ifhehadcomeyesterday,Ishould/wouldhavetold
4、himaboutit.含义：Hedidnotcomeyesterday,soIdidnottellhimaboutit.含义：Hewasillandmissedmanylessons,sohedidnotmakegreaterprogress.主句should+动词原形would+动词原形a.表示对将來的假想句型：条件从句—般过去时wcrc+不定式should+动词原形Ifyousucceeded,everythingwouldbeallright.Ifyoushouldsucceed,everythingwouldbeallright.Ifyouweretosucceed,everythi
5、ngwouldbeallright.16.3混合条件句主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。Ifyouhadaskedhimyesterday,youwouldknowwhattodonow.(从句与过去事实相反，主句与现在事实相反。)Ifithadrainedlastnight(过去),itwouldbeverycoldtoday(现在).16.4虚拟条件句的倒装虚拟条件句的从句部分如果含冇were,should,或had,nJ'将讦省略，再把were,should或had移到从句句首，实行倒装。Weretheyhereno
6、w,theycouldhelpus.=Iftheywereherenow,theycouldhelpus.Hadyoucomeearlier,youwouldhavemethim=Ifyouhadcomeearlier,youwouldhavemethim.Shoulditrain,thecropswouldbesaved・=Wereittorain,thecropswouldbesaved・注意：在虚拟语气的从句中，动词'be，的过去时态一律用"were",不用was,即在从句中be用were代替。IfIwereyou,Iwouldgotolookforhim.如果我是你，就会去找他。If
7、hewerehere,everythingwouldbeallright.如果他在这儿，一切都会好的。典型例题todothework,Ishoulddoitsomeotherday.A.IfwereIB.IwereC.WereID.WasI答案C.在虚拟条件状语中如果有were,should,had这三个词，通常将if省略,主语提前，变成were,should,had+主语的形式。但耍注懑，在虚拟条件状语从句
