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1、虚拟语气语气是表示说话者对动词所表示的动作或状态的态度,是一种动词形式。英语中的语气有三种:1陈述语气用来陈述一个事实,或提出一个想法,有肯定、否定、疑问或感叹等形式。JapanliesontheeastofChina.2祈使语气:用来表示请求、邀请、命令、警告或劝告等。Don’tbeworry.3虚语语气:表示说话人的一种愿望、建议、命令、要求、有时是一种非真实的假设、料想,或是不可能实现的与事实相反的愿望。IwishIwereabird.(1)表示与现在事实相反条件状语从句中的谓语动词用“过去式(be动词的过去式用were)”,而主句中的谓语动词“woul
2、d/should/could/might+动词原形”。IfIwereaboy,Iwouldjointhearmy.虚拟语气在条件句中的应用a.Ifthey_____(be)here,they__________(take)youradvice.b.Iftheworldwar_____(burst)outagain,what_____________(happen)toourpeopleonearth?werewouldtakeburstwouldhappenI:Fillintheblanks.c.Ifthepoliceman________(benot)int
3、hatroom,it________(be)verydangerous.d.IfI_____(be)inyourposition,I_________(ask)forteacher’shelp.werewouldaskwerenotcouldbeIfIhadalotofmoney,I……IfIhadalotofmoneynow,Iwouldtravelaroundtheworld.IfIhadalotofmoneyIwouldbuyavilla.2.与过去的事实相反从句的谓语用had+过去分词,构成IfI(we,you,he,they)+had+过去分词的形式
4、;主句的谓语用would/could/mighthave+动词过去分词。IfIhadknownityesterday,Iwouldhavepreparedforit.Ifhe__________(drive)morecarefully,he_________________(nothave)thecaraccidentyesterday.haddrivenwouldnothavehadIfI__________(learn)howtoswim,I__________________trappedonthatisland.wouldnothavebeenhadl
5、earnt3.与将来事实相反从句的谓语用IfI(we,you,he,they)+动词过去式或weretodo或shoulddo形式,主句谓语用would/could/might+动词原形。Ifitweretosnow/shouldsnow/snowed,Iwouldsleepallday.What____________(happen)ifyou________________________________(getup)toolatetomorrow?c.IfRobots_____________(control)theworldsomeday,there_
6、_______(be)nofriendship.wouldhappenshouldgetup/gotup/weretogetupPRACTICE:Fillintheblanksweretocontrol/controlled/shouldcontrolwouldbe条件从句If从句主句的谓语形式现在过去将来过去时(were)would/could/should/might+do虚拟语气在条件状语从句中的用法。过去完成时(haddone)would/could/should/might+have+done1.过去时2.should+V.3.weretodowou
7、ld/could/should/might+doIdidn’tseeyoursisteratthemeeting.Ifshe_____________(come),shewouldhavemetmybrother.2.IfI________(know)German,Iwouldreadthebookintheoriginal.3.Ifsheweretocometomorrow,I_________(tell)himthenews.4.WereIyou,I______________(nothelp)him.5.Hadyouworkedhard,you_____
8、__________(get)agoo