英语人教版八年级上册条件状语从句语法课.pptx

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1、If引导的条件状语从句石家庄市第二十一中学张素蕊1.Ifitrains,Iwillstayathome.2.Ifyouarelateforclass,yourteacherwillbeangrywithyou.experience从句主句从句在前逗号隔，从句在后句号末。3.Youmuststopifthetrafficlightisred.4.Ifshefinishesherhomework,shecangohome.5.PleasecallmeifhecomesbacknextSunday.I

2、f条件句用法if条件从句谓语动词主句谓语动词主将从现1.do/does2.Be(am.is,are)Shall/will+动词原形主情从现1.do/does2.Be（am.is,are）Can/may/must/should+动词原形1.do/does2.be（am.is,are)动词原形/don’t+动词原形主祈从现五字歌If词表假设，位置有两个。要知怎么用，我来说一说。主句将祈情，从句现在妥。1.Iftherain___(stop)tonight,wewillgotothecinema.2.

3、He____(play)chess,ifhe____(be)free.3.Ifyouwanttorecord,____(press)theredlight.4.Shecanwalkthedogifshe___(have)time.即时练stopsWillplayispresshas.If……not…=unless除非，如果不Wewillgohikingtomorrowunlessitrains.=Wewillgohikingtomorrowifitdoesn’train.除非明天下雨，否则我们将

4、去远足。你还知道吗？.Shewon’tcomebackfromthemarket_____shegetsenoughthings.A.AfterB.ifC.becauseD.unless火眼金睛Thankyouforlistening