虚拟语气Subjunctive虚拟语气表示说话人的愿望、假设、猜测或建议，而不表示客观存在的事实。虚拟语气通过谓语动词的特殊形式来表示，下面对虚拟语气在各种句式中的用法分别介绍。句式一、虚拟语气在简单句中的应用名词性从句表示与现在事实相反的假设时，条件状语从句中的谓语动词用“过去式（be的过去式用were）”，而主句中的谓语动词用“would（should,could,might）+动词原形。”题例：1)Ifmyfather__________herenow,he_________tellmewhattodo.A.were,wouldBwere,willCis,wouldDis,will2)IfI________abee,I__________workmuchharder.Awere,wouldBwere,shallChad,willDhave,should3)IfI_______muchmoney,I_________buyahouse.Ahave,willBhad,shouldChad,willDhave,should4)He__________learnmorequicklyifhe_________harder.Awill,workBwould,workedCwould,workDwill,worked5)IfI__________you,I_________dothat.Awas,wouldn'tBwere,wouldn'tCam,won’tDwere,won’t表示与过去的事实相反的假设时，条件状语从句的谓语动词用“had+过去分词”，主句中的谓语动词用“would（should,could,might）+have+过去分词”。1)Ifyou___thedoctor’sadvice,youwouldhaverecognizedalready.A.followedBwouldfollowCfollowDhadfollowed2)Ifmylawyer____herelastSaturday,he___mefromgoing.Ahadbeen,wouldhavepreventedBhadbeen,wouldpreventCwere,wouldpreventDwere,wouldhaveprevented3)I___ifshe____me.Awouldhaveoverslept,didn'tcallBwouldhaveoverslept,hadn’tcalledCoverslept,hadn'tcalledDwouldoverslept,didn'tcall4)----Ifhe___,he___thatfood.----Luckilyhewassenttothehospitalimmediately.Awaswarned,wouldnottakeBhadbeenwarned,wouldnothavetakenCwouldbewarned,hadnottakenDwouldhavebeenwarned,hadnottaken5)She_____tothepartyifshe_____invited.Awouldhavegone,hadbeenBwouldgo,wasCwouldhavegone,wasDhasgone表示与将来事实相反的假设时，条件从句和主句所用的谓语动词怀“表示与现在事实相反的假设”的谓语动词相同，或者条件从句中用“wereto/should+动词原形”or过去式。1)It’squiteimpossiblethatitwillraintomorrow.Butifit____,Iwouldstillgotothepark.AshouldrainBwouldrainCrainDhadrained2)Idon’tthinkthatIshallfail.ButifI____,Iwouldtryagain.AshouldfailBwouldfailCfailedDhadfailed3)_____Tomorrow,whatshouldwedo?AIfitrainsB.ShoulditrainC.woulditrainD.WereitrainingIII.在不同时间下，虚拟语气的三种形式，公式。I.与现在事实相反WeremightIf+主语+过去式动词would过去式助动词，主语+could+VShouldII.与过去事实相反mightwould+have+过去分词If+主语+had+过去分词,主语+couldShouldIII.与将来事实相反Weremightif+主语+过去式助动词shouldwere