if-条件状语从句复习(课堂PPT).ppt

If引导的条件状语从句Revision_selfcheck位置：从句可放在主句之前或之后，但是放在主句之前须有逗号隔开If条件句：条件句用于陈述语气，表示假设的情况可能发生，其中if是“如果”的意思。主句一般将来时，从句用一般现在时。用法：1.如果主句是一般将来时，从句则用一般现在时。Ifitrains（从句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（从句）.2.如果主句含有must,may,can等情态动词，从句也要用一般现在时。Ifyoudrivetoofast,youmayhaveanaccident.Youmuststopifthetrafficisred.Ifyoufinishthehomework，youcangohome．如果你作业做完了就可以回家了。Ifyouwanttoloseweightyoumust/shouldeatlessbread.如果你想减肥，你必须少吃面包。练一练：1。如果她早点儿起床，就有时间在家里吃早餐Ifshe________alittleearlier,she’llhavetimetoeatbreakfastathome.2。如果你参加聚会，你将会过得很开心。Ifyou____theparty,you_________agreattime.3。如果明天下雨，我们将不去野餐Ifit____tomorrow,we_______forapicnic.4。如果你经常听英文歌，你将会喜欢英语Ifyouoften_______Englishsongs,you______English.1.Ifhe____________(not,doit),I___________(do)it.1.I’msureifhe_____(go)totheparty,he________(have)agreattime.2.Iftherain_______(stop)tonight,wewillgotothecinema.3.I’llbuyacomputerifI______(have)enoughmoney.4.You_________(notget)nervousifyou_____(do)enoughexercise.6.Iwanttoknowifhe_________(come)tomorrow,ifhe_______(come),I__________(give)themassagetohim.I__________(record)theCDforyoutomorrow.Doessheoften_______(lend)moneytoherbrother?Thesnake________(notappear)ifyoumakenoise.Inthefinalexam,I_______(get)goodmarks.2.Youmay______(pass)theexamifyou___(study)hard.用括号内所给词的正确形式填空IfI’mill,__________________.Selfcheck3.Ifthe_________stayouttoolate,theirparentswillworryaboutthem.4.I’llgotothe__________ifitendsby5:00p.m.A:Hi,Sally,_____you______tothepartytomorrow?B:I______to,butIcan’t.A:Oh!But_____youdon’tgototheparty,you______missallthefun!B:Iknow,butIgotintoa_____withmyparents.1.itrainsallweekend?______________________________________________________________________2.there’sanEnglishtesttomorrow?__________________________________________________________________3.yourcousindecidestocomeandvisitfromanothertown?_____________________________________________________________________________________________________________