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状语从句If引导的条件状语从句•什么是状语？HespeaksEnglishverywell.Youareverybeautiful.（动词）（形容词）（程度副词）主语谓语宾语状语用来修饰动词，形容词，副词以及全句的句子成分，叫做状语。用作状语的通常是副词，介词短语，不定式和从句等。状语从句在复合句中表示的状语可以用来修饰谓语（包括非谓语动词）、定语、状语或整个句子。状语从句分类1时间状语从句9结果状语从句6让步状语从句8方式状语从句7比较状语从句2地点状语从句3原因状语从句4条件状语从句5目的状语从句位置：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.=IwilltravelaroundtheworldifIhaveenoughmoney.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。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.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。3.如果主句是祈使句，从句同样要用一般现在时。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.If引导的条件状语从句的基本用法:主句从句一般将来时一般现在时祈使句一般现在时含情态动词一般现在时练一练：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.getsupjoinwillhaverainswon’tgolistentowilllike1.Ifhe____________(not,doit),I___________(do)it.2.Ifyou____(be)lateforschool,myteacher________(be)angry.arewillbe3Ifshe________(win)theprize,we_______(be)happy.winswillbe4.IfI_________(not,eat)somuch,I_________(get)thinner.5.Ifyou______(tell)them,they_____________(not,believe)you.don’teatwillgettellwon’tbelieve6I_________(stay)athome,Ifit__________(rain).7.Ifit____________(not,rain),I_________(go)out.8.we__________(play)football,Ifitis_______(sun).9.Ifshe__________(become)astar,herparents____________(not,send)heraway10.He_________(watch)TV,ifhe______(be)free.willstayrainsdoesn’trainwillgowillplaysunnybecomeswon’tsendwillwatchisdoesn’tdowilldo1.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.goeswillhavestopshavewon’tgetdocomeswillcomewillgive1.I__________(record)theCDforyoutomorrow.2.Doessheoften_______(lend)moneytoherbrother?3.Thesnake___________(notappear)ifyoumakenoise.4.Inthefinalexam,I_______(get)goodmarks.willrecordlendwon’tappearwillget2.Youmay______(pass)theexamifyou___(study)hard.rainswillstaypassstudy3.Ifyouwanttorecord,________(press)theredlight.press1.IfIt______(rain)tomorrow,I_________(stay)athome.Fillintheblanketswiththeproperform用括号内所给词的正确形式填空1.Iftherain_______(stop)tonight,wewillgotothecinema.2.I’llbuyacomputerifI______(have)enoughmoney.3.You_________(notget)nervousifyou_____(do)enoughexercise.4.Ifshe____(be)kindtome,I____________(notargue)withher.5.Iwanttoknowifhe_________(come)tomorrow,ifhe___________(come),I__________(give)themassagetohim.stopshavewon’tgetdoiswon’targuewillcomecomeswillgiveIfI’mill,__________________.IwillseeadoctorLookandsayIfI’mlate,_________________.IwillsaysorryIfI’mhungry,Iwill______________.IfI’mtired,Iwill_____________.LookandsayeatsomefoodhavearestIfitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketball