if条件状语从句--语法--好用.ppt

,If从句（条件状语从句）,Ifitisfinetomorrow,Iwillclimbthemountain.,Ifitissunnythisweekend,whatwillyoudo?,Ifitissunnythisweekend,I_footballwithmyclassmates.,willplay,Ifitissunnythisweekend,whatwontyoudo?,Ifitissunnythisweekend,I_.,Ifitissunnythisweekend,I_.,Wontstayathome,wontwatchtelevision,Ifyouhaveenoughpocketmoney,whatwillyoubuy?,IfIhaveenoughpocketmoney,I_.,IfIdontfinishmyhomework,Iwontgotobed.,由if引导的从句叫条件状语从句，if意为“如果”当主句是一般将来时时，if引导的从句必须用现在时来表示将来可能发生的动作或存在的状态。（“主”将从“现”）,IfIgetuplate,Iwillbelateforschool.,=IwillbelateforschoolifIgetuplate.,Grammar,条件状语从句,1.主将从祈2.主将从现ifwill/wont3.主情（can，may，should，must）从现,IfImhungry,Iwill_.,IfImtired,Iwill_.,Lookandsay,eatsomefood,havearest,Ifyoufeelhungry,youshouldeatsomething.,Ifyoufeeltired,youmusthavearest.,IfImill,_.,Iwillseeadoctor,Lookandsay,IfImlate,_.,Iwillsaysorry,Ifyouareill,youshouldgotoseeadoctor.,Ifyouareridingabikeinthestreet,youmustbeverycareful.,Ifitrainstomorrow,I_.,willwatchTVathome,Ifit_tomorrow,_.,Illplaybasketball,doesntrain,Iwont_.,playbasketball,Ifyouarefreethisweekend,whatwillyoudo?,IfIamfree,sleepwatchTVplaycomputergames,practice,Completethesentenceswiththecorrectformofthewords.,1.Ifyou_(listen)tothemusic,_(buy)aCD.2.Ifhe_(be)lateforschool,_(notwait)forhim.3.Ifyou_(buy)anewcamera,_(get)agoodone.4.Ifthelight_(notcome)on,_(wait)foroneminute.,is,buy,get,doesntcome,wait,dontwait,listen,buy,Revision,e.g.1.Ifyoudontgetupearly,youwillbelateforschool.你如果不早点起床，上学就会迟到。,2.Ifyo