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1、If引导的条件状语从句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。构 成条件从句主 句时 态If＋一般现在时主语＋shall/will+动词原形例 句Ifhecomes,hewilltakeustothezoo.用法：1.如果主句是一般将来时，从句则用一般现在时。Ifitrains，Iwillstayathome.从句主句I’llgowithyouifyoudon’twanttogo主句从句alone.2.如果主句含有must,may,can等情态动词，从句也要用一般现
2、在时。Ifyoudrivetoofast,youmayhaveanaccident.主句Youmuststopifthetrafficisred.主句从句3.如果主句是祈使句，从句同样要用一般现在时。Don’tgoandplayfootballifyoudon’t祈使句finishyourhomework.PleasecallmeifhecomesnextSunday.祈使句1。如果你请求他，他会帮你的Ifyou___him,he_______you2。如果她早点儿起床，就有时间在家里吃早餐Ifshe_______
3、_alittleearlier,she’llhavetimetoeatbreakfastathome.3。如果你参加聚会，你将会过得很开心。Ifyou____theparty,you_______agreattime.4。如果明天下雨，我们将不去野餐Ifit____tomorrow,we________forapicnic.5。如果你经常听英文歌，你将会喜欢英语Ifyouoften________Englishsongs,you______English.1.Don’t go out tomorrowif it _
4、__ ___ (rain) .2. I don’t know if he ____ ____(come)tomorrow.3.If you the telephone___(ring) ,answer it.选择正确答案。()1.Itwasrainingheavily____wegottoParis.A.whileB.ifC.when()2.Idon’tknowif____tomorrow.A.itdoesn’trainB.therainwillstopC.itwillrain()3.Thevolleyball
5、matchwillbeputoff(推迟)ifit____.A.willrainB.rainsC.rained()4.Difficultiesarenothingifwe____notafraidofthemA.willB.shallC.are()5.We____Beijingtomorrowifitdoesn’train.A.aregoingtoB.wouldC.willgo()6.I’llgotomeetyou，ifI____freethen.A.wouldbeB.willbeC.am()7.Becareful
6、,ifyou____wanttomakemistakes.A.won’tB.don’tC.didn’t()8.Workhardifyou____togetagoodmark.A.wantedB.wantingC.want()9.Iwanttoknowifyou____tothepartytomorrow.IwillifI____free.A.willcome;amB.come;amC.willcome;willbe()10.Thereisgoingto____sportsmeetingnextweek.Ifit__
7、__,we’llhavetocancelit.A.be;willrainB.have;willrainC.be;rains()11.Ifhe____,I____swimmingalone.A.doesn’tcome,willgoB.won’tcome;willgoC.willcome;won’tgo()12.Ifyou____achancetostudyinaforeigncountry,justtakeit.A.gettingB.getC.willget()13.Frank____afilmifhe’sfreen
8、extSaturday.A.seeB.sawC.willsee4.表示假设，表示将会发生和可能发生的事，或进行提醒警告。If+句子（一般现在时），+主句（主语will/may/can)+动词）Ifyoufinishyourhomework,youcangooutandplay.IfIhaveenoughmoneynextyear,Iwillgototrave
