if四种条件句.pptx

if四种条件句.pptx

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FIRSTSECONDTHIRDZEROIfIamlateforschool,myteachergetsangry.IfclauseMainclauseMainclauseIf+PresentsimplePresentsimpleIfIoversleepImissthebus.IfImissthebus,Iamlateforschool.IfIamlateforschool,myteachergetsangry.IfIgotoLondon,IwillseetheBigBen.IfclauseMainclauseIf+Presenttensewill/can/may/must+verbIfIgotoLondonIwillseetheBigBen.IfIgotoBuckinghamPalace,IcantakeaphotooftheRoyalGuard.IfyougotoLondon,youmustlookrightbeforecrossingastreetIfclauseMainclauseIf+PastSimplewould/could/might+verbIfIwereanastronaut,Iwouldtravelinaspaceship.IfIwereanastronaut,Iwouldtravelinaspaceship.IfItravelledinaspaceship,IwouldgotoMars.Nicetomeetyou!

IfIwenttoMars,IwouldmeetaMartian.IfImetaMartian,Iwouldntunderstandhim.?

IfIIfIavedavedIfIdidntunderstandhim,IwouldcomebacktotheEarth.IfIhadstudiedhard,Iwouldhavepassedmyexams.IfclauseMainclauseIf+PastPerfecttensewould/could/might+have+pastparticipleIIfyouhadstudiedhard,youwouldnthavefailedyourexam.IIfyouhadpassedyourexam,youcouldhavegonetothebeach.IIfIhadgonetothebeach,Iwouldhavemadesandcastles.