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1、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eg:如果我有足够的钱，我就去环游世界If引导条件状语从句定义：if“如果,假如”它引导的句子表示某事发生所需的条件，即“在…条件下，某事才能发生”，在句子中充当状语，因此称之为条件状语从句。（If引导的条件状语从句表示假如有从句的动作发生，就会有主句动作的发生）IfIhaveenoughmoney,Iwilltravelaroundtheworld=Iwilltravelaroundthe
2、worldifIhaveenoughmoneyIf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。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（从句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（从句）.2
3、.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。3.如果主句是祈使句，从句同样要用一般现在时。Don’tgoandplayf
4、ootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.1.主将从祈2.主将从现if…will/won’t3.主情（can，may，should，must）从现IfI’mill,__________________.IwillseeadoctorLookandsayIfI’mlate,_________________.IwillsaysorryIfI’mhungry,Iwill______________.IfI’mtired
5、,Iwill_____________.LookandsayeatsomefoodhavearestIfitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketballIfthetelephonerings,Ifyougetuplate,youw
6、illbelateforschool.LookandsayIwillanswerit.Ifyoufeelhungry,youshouldeatsomething.Ifyoufeeltired,youmusthavearest.Ifyouareill,youshouldgotoseeadoctor.Ifyouareridingabikeinthestreet,youmustbeverycareful.1.I’msureifhe_____(go)totheparty,he________(have)agreat
7、time.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.goes
8、willhavestopshavewon’tgetdocomeswillcomewillgive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
