if-条件状语从句复习课件

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,假设”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设有从句的动作发生，就会有主句动作的发生〕IfIhaveenoughmoney,Iwilltravelaroundtheworld=IwilltravelaroundtheworldifIhaveenoughmoneyIf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，从句那么用一般现在时。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.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)heraway

10.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’tgetdocomeswillcomewillgiveI__________(record)theCDforyoutomorrow.Doessheoften_______(lend)moneytoherbrother?Thesnake________(notappear)ifyoumakenoise.Inthefinalexam,I_______(get)goodmarks.willrecordlendwon’tappear

willget

2.You

may______(pass)

the

exam

if

you

___(study)

hard.

rainswillstaypassstudy

3.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’m

tired,Iwill_____________.Lookandsayeatsomefoodhavearest

Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketballSelfcheck1.Fillintheblankswiththewordsinthebox.meeting,teenagers,video,experience1.Ifmyfamilytravelstoanewcountrythissummer,I’llsendyoualetteraboutmy__________.2.Willyouwatchthe______withmeifyou’refreethisweekend?experiencevideo3.Ifthe_________stayouttoolate,theirparentswillworryaboutthem.4.I’llgotothe__________ifitendsby5:00p.m.meeting,teenagers,video,experiencemeetingteenagersA:Hi,Sally,_____you______tothepartytomorrow?B:I______to,butIcan’t.2.Completetheconversationwithwordsinthebox.Somewordsareusedmorethanonce.if,are,will,fight,want,sorry,goingaregoingwantA:Oh!But_____youdon’tgototheparty,you______missallthefun!B:Iknow,butIgotintoa_____withmyparents.ifwillfightA:Hmm…thenyoushouldjustsay_____toyourparents.B:Iguessyou’reright.I______talktothemtonight.sorrywill1.itrainsallweekend?______________________________________________________________________Ifitrainsallweekend,I’llchatwi