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1、6ProblemsModuleUnit1IfIstartafterdinner,I’llfinishitbeforeIgotobed.IfI’mhungry,Iwill______________.IfI’mtired,Iwill_____________.LookandsayeatsomefoodhavearestWarmingupIfI’mill,__________________.IwillseeadoctorLookandsayIfI’mlate,_________________.Iwillsaysorry主将从现Ify
2、outouchtheball,yourhair_________(fly).IfIvisittheGuangxiScienceandTechnologyMuseum,I_______(do)someexperiment.willdowillfly主将从现IfyouvisittheScienceMuseuminLondon,you__________(have)funthere.willhave主将从现Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____
3、________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketball主将从现IfIhavetime,Iwill...主将从现if从句的主语单三的时候，其动词形式要用单三形式。Ifhe/shehastime,he/shewill...主将从现playtheviolingoswimmingwatchamovieIfTony______(go)toLondon,he_______(visit)theScien
4、ceMuseum.Ifhe_______(visit)theScienceMuseum,he_________(do)someexperiment.goeswillvisitvisitswilldoIfI______(go)toParis,I_______(visit)theLouvreMuseum.Ifit__________(notrain)tomorrow,we_________(visit)thePalaceMuseuminBeijing.gowillvisitdoesn'trainwillvisitIfI_______(s
5、leep)inclass,myteacher_________(be)angrywithme.Whatwillhappenifyousleepinclass?sleepwillbeWhatwillhappenifyourteacherisangrywithyou?Ifmyteacher____(be)angrywithme,I__________(be)sad.iswillbeIfIeatalot,Iwill________.IfIgetfatter,I_________(have)healthproblems.ThenIwillb
6、emuchsadder.So,Ishouldn’teatalot.getfatterwillhaveGrammarif条件状语从句(2)句子特点：if条件状语从句表示某种假设的情况，主句表示此种情况所导致的结果。所以主句和从句的谓语动词遵循“主将从现”的原则。句型结构：主句+if条件状语从句if条件状语从句，+主句（从句后加逗号）3.时态：if一般现在时，+主句一般将来时或（can/may/must+v.)观察下面的三个句子：Ifyouhaveanyquestion,askMsLiang.Ifyouneedanyhelp,callm
7、e,please.Ifyougetthere,givemearing.Ifyoudonotfeelwell,pleasegotoseeadoctor.再观察下面的三个句子：Ifyouworkhard,youwillgetgoodmarks.Ifyouvisitthemuseum,youwillhavegreatfun.Ifitrainstomorrow,wewon'thaveapicnic.If条件状语从句+祈使句。表示建议。If条件状语从句+主句。（主将从现）再观察下面的两个句子：Ifyouvisitthemuseum,youmu
8、stobeytherules.Ifshearrivesintime,shemaycomewithus.If条件状语从句+主句(主句含有情态动词)。e.g.1.Ifyoudon’tgetupearly,youwillbelatefors
