虚拟语气用法总结概念:谓语v用不同得形式表示说话人得不同意图,这种形式称为语气。语气分三种:1、陈述语气:用来陈述一个事实,或提出一种瞧法,有肯定、否定、疑问、感叹等形式。Heislateforclass、Whatfun!Heisnotinterestedinclassicalmusic、2、祈使语气:用来表示请求、邀请、命令、警告或劝告等(动词常用原形)Don’tbelate！3、虚拟语气:表示说话人所说得不就是事实,而就是一种假设、愿望、怀疑或推测。一、虚拟语气在if非真实条件句中Ifyouhadstudiedhardbefore,youwouldhavepassedtheexam、Youdidn’tletmedrive、Ifwe______inturn,you______sotired、drove;didn’tgetdrove;wouldn’tgetweredriving;wouldn’tgethaddriven;wouldn’thavegot________itraintomorrow,wewouldhavetoputoffthevisittotheYangPuBridge、WereB、ShouldC、WouldD、Will注意:1、错综时间虚拟语气当从句主句所表示得行为所发生得时间不一致时,动词得形式要根据它所表示得时间作出相应得调整。Ifyou____________(follow)myadvicejustnow,you_________(be)betternow、Ifyou__________(study)hardbefore,you_______(be)acollegestudentnow、Ifyou______withGeorgeearlier,you_____soangrynow、talked;wouldnotbehadtalked;wouldnotbewouldtalk;wouldnotbehadtalked;wouldnothavebeenIfwehadtakensucheffectivemeasuresmuchearlier,theriver_____soseriouslynow、isnotpollutedwouldnotbepollutedhadnotbeenpollutedwouldnothavebeenpolluted2、if从句中,were,had(完成时态标志),should可以放在句首,(用于倒装结构),if必须省略。否定词not不能放在前面。1、HadInotseenhimthen(Hadn’tIseenhimthen),Iwouldn'thavebeenveryhappy、3、含蓄虚拟语气有时为了表达得需要,在虚拟语气中,并不总就是出现if引导得条件句,而通过其它手段来代替条件句。常用得有介词with,without,butfor(倘没有,要不就是);连词or,but;副词otherwise等。大家有疑问的，可以询问和交流2、Hetelephonedtoinformmeofyourbirthday,orIwouldhaveknownnothingaboutit、3、Ishouldhavegivenyoumorehelp,butIwastoobusy、Withoutelectricity,humanbeinglife______quitedifferenttoday、iswillbewouldhavebeenwouldbeButforhishelp,I______、shouldnothavesucceededhavenotsucceededdidnotsucceedhadnotsucceededHehesitatedforamomentbeforekickingtheball,otherwisehe_____agoal、hadscoredscoredwouldscorewouldhavescored—Whydidn’tyoubuyit?—I______butIdidn’thavethemoney、A、wouldB、wouldhaveC、hadhadD、hadbought二、虚拟语气得其她用法1、asif/asthough(好像)+从句与现在相反did/were与过去相反haddone与将来相反would/could/might+doHelooksasifhewereanartist、Hetalkedabouttheaccidentasifhehadseenit、(区分evenif/though)注意:若表示得确有某种可能(尤指天气),也可不用虚拟语气。Eg、Look!