虚拟语气表示一种不能实现的假设,该语法主要用于if条件状语从句,也可用于主语从句、表语从句、宾语从句等。通常有三种情况：通常有三种情况：①①与与过去过去事实相反。事实相反。②②与与现在现在事实相反。事实相反。③③与与将来将来事实可能相反。事实可能相反。虚拟语气虚拟语气条件从句条件从句的谓语形式主语的谓语形式与过去相反IfI(you,he/she,they,we)+had+过去分词should/would/could/might+have+过去分词例：例：IfIhadcomeheryesterday,Iwouldhaveseenhim.IfIhadcomeheryesterday,Iwouldhaveseenhim.如果我昨天来，就会看见他了。如果我昨天来，就会看见他了。Ifyouhadgotupearlier,youcouldhavecaughttheIfyouhadgotupearlier,youcouldhavecaughtthetrain.train.如果你早一点起床，就会赶上火车的。如果你早一点起床，就会赶上火车的。与过去相反与过去相反IftheyIftheyhadstudiedhardhadstudiedhard,they,theycouldhavedonecouldhavedoneititeasilythatday.easilythatday.1.1.如果他们以前努力学习的话，那天干的就会容易些。如果他们以前努力学习的话，那天干的就会容易些。2.如果他不听取我的建议，他就不会干得这样好。IfheIfhehadnottakenhadnottakenmyadvice,hemyadvice,hewouldn‘thavewouldn‘thavedonedoneitmuchbetterlikethis.itmuchbetterlikethis.IfI____________timelastnight,I_____________toseethefilmwithyou.hadhadhadhadwouldhavegonewouldhavegoneIfhemorecarefully,hethecaraccidentyesterday.haddrivenhaddrivenwouldnothavehadwouldnothavehadIfIhowtoswim,IfIhowtoswim,IItrappedinthisisland.trappedinthisisland.hadlearnthadlearntwouldnothavebeenwouldnothavebeenIfthestaffIfthestaffhadbeenhadbeenmorecareful,morecareful,themallthemallwouldwouldnotbenotbeonfirenow.onfirenow.主句与从句的动作发生在不同的时间,这时主从句位于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.例句中从句与过去事实相反,主句与现在事实相反IfyouIfyouhadaskedhadaskedhimyesterday,youhimyesterday,youwouldwouldknowknowwhattodonow.whattodonow.条件从句条件从句的谓语形式主语的谓语形式与现在相反IfI(you,he/she,they,we)+动词过去式should/would/could/might+动词原形例：例：IfIwereateacher,Iwouldbestrictwithmystudents.IfIwereateacher,Iwouldbestrictwithmystudents.IfIhadHIV,IwouldknowbecauseIwouldfeelsick.IfIhadHIV,IwouldknowbecauseIwouldfeelsick.hadHIVhadHIVwouldfeelwouldfeelwerewerewouldbewouldbe与现在相反与现在相反Whatwouldyoudoifyouwonthelottery?IfIwonthelottery,Iwould…IfIIfIwonwonthelottery,Ithelottery,Iwouldwouldbuyanexpensivebuyanexpensivecar.car.IfIhadalotofmoney,Iwouldbuyavilla.IfIhadalotofmoneynow,Iwouldtravelaroundtheworld.IfitIfitwerewerefinenow,finenow,IIwouldwouldgoshopping.goshopping.IfI____ateacher,I….werewere条件从句条件从句的谓语形式主语的谓语形式与将来相反IfI(you,he/she,they,we)+动词过去式IfI(you,he/she,they,we)+should+动词原形IfI(you,he/she,they,we)+wereto+动词原形should/would/could/might+动词原形1.Iftheteacher1.Iftheteacheraskedaskedmetosolvetheproblemnextmetosolvetheproblemnexttime,Itime,Icouldtrycouldtrymybest.mybest.2.Ifhe2.Ifheshouldfailshouldfailintheexperimentthistime,heintheexperimentthistime,hewouldtrywouldtryagain.again.3.Ifwe3.Ifweweretopanicweretopanic,we,wewouldnotbewouldnotbeabletohelp.abletohelp.与将来相反与将来相反如果你成功了，一切都会好起来。如果你成功了，一切都会好起来。Ifyousucceeded,everythingwouldbeallright.Ifyoushouldsucceed,everythingwouldbeallright.Ifyouweretosucceed,everythingwouldbeallright.Ifhegotupearly,hewouldbeontimewishwishInSubjunctivemood虚拟语气的特殊用法：虚拟语气的特殊用法：1111IwishIIwishIwerewereastallasyou.astallasyou.IwishIIwishIwer...
