语法：虚拟语气

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1、虚拟语气真实条件句Ifitdoesn’train,wewillgoout.虚拟语气：从句主句与现在相反did(be—were)woulddo与过去相反haddonewould/might/couldhavedone与将来相反didshoulddoweretodowoulddoIfIwereyou,Iwouldn’tdosuchasillything.IfIhadfollowedyouradvice,Iwouldhavegotthefirstprize.混合虚拟语气：IfIhadrecitedthetranslationslastnight

2、,Iwouldwritethemdown.虚拟语气的特殊情况：1.命令要求坚持建议名词性从句用（should+）动词原形order,command,demand,require,insist,suggest,recommendHesuggestedthatIshouldlistentotheteachercarefully.suggestdoing建议insistondoing坚持suggestthatshould+do（建议）insistthatshould+do(坚持)suggest暗示，表明insist坚持说，硬说Theexpres

3、siononhisfacesuggestedthathehadknownit.1.It’shightimethatshould+do/did到了该做…的时候了It’shightimethatweshouldhavelunch.It’shightimethatwehadlunch.1.It’sessential/important/necessarythat(should)do做…事情是必要的2.Ifhehadn’thadtoquitandfindajobtosupporthisfamily,hewouldhavefinishedhisco

4、llegeeducation.3.虚拟语气倒装Ifhehaddonesth.=hadhedonesth.Ifheshoulddosth.=shouldhedosth.Ifheweretodosth.=werehetodosth.1.wouldratherdosth.宁愿wouldratherthatdid/haddone2.butfor要不是=ifitwerenotfor(与现在相反)=ifithadnotbeenfor（与过去相反）