虚拟条件句完整版本.pptxVIP

通关微语法1.虚拟条件句（if引导）1.定义：表示与真实情况相反的一种假设或推断2.虚拟语气常见的有if引导的虚拟条件句，以及without、butfor，otherwise，等（1）if引导的虚拟语气现在：从句（过去式/were）主句：should/would/might/could+v.过去：从句（haddone）主句：should/would/might/could+havedone将来：从句：（过去式/were/should+v./weretodo）主句：同“现在”Ifyouhadcomehererealier,thework___________(do)yesterday.Iftheweather_______(be)fine,wewouldgotoShanghai.Theglasswouldbreakifyou_______(drop)it.wouldhavebeendoneweredropped/shoulddrop

2.虚拟条件句的省略和倒装用法：先将if省略，再将从句中的were,should,had,could,would等词提前Ifyouhadcomehereearlier,theworkwouldhasbeendoneyesterday.=Hadyoucomehereearlier,theworkwouldhasbeendoneyesterday.Iftheweatherwerefine,wewouldgotoShanghai.=Weretheweatherfine，wewouldgotoShanghai.Theglasswouldbreakifyoushoulddropit.=Theglasswouldbreakshouldyoudropit.

3.错综时间条件句1.定义：条件从句与主句所指时间不一致，如从句指过去，主句指现在或将来，此时根据语境，主从句的时态需要进行相应调整。Ifithadrainedlastnight,thegroundwouldbewetnow.(过去-现在）Ifheweretoleave,youwouldhaveheardaboutit.（将来-过去）Ifhehadfollowedthedoctorsadvice,he_______(be)betternow.Ifyou________(work)hardthen,youwouldbeintheuniversitynow.ifyouhesitatedthismoment,you____________(suffer)inthefutue.wouldbehadworkedmightsuffer

4.含蓄条件句含义：有时假设的条件不直接通过if从句表现出来，而是通过介词短语，副词，或非谓语动词等形式或上下文暗示来说明1.without/butfor/but/otherwise/or（else）等介词（短语）或副词与现在/将来相反：would/could/might/should+do与过去相反：would/could/might/should+havedone①Withoutyourhelp(ifIhadnthadyourhelp),Iwouldhavefailedtheexamlastweek.②Withoutyourticket,Iwoundntbeabletogototheconcerttomorrow.③Hehesitatedforamoment,otherwisehewouldhavescoredagoal.Butforyourhelp,I______________(make)suchgreatprogressinEnglish.Butforyouradvice,Iwould_____________(fail).couldnthavemadewouldhavefailed

Hedidntcomeyesterday,otherwiseyouwouldhaveseenhim.I_______(be)busyatthattime,otherwiseIwouldhavecalledyou.I___________(give)youmorehe