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1、Unit10Ifyougototheparty,you’llhaveagoodtime!IthinkI’lltakethebustotheparty.Ifyoudo,you’llbelate.IthinkI’llstayathome.Ifyoudo,you’llbesorry.Whatwillhappeniftheyhavethepartytoday?Iftheyhaveittoday,halftheclasswon’tcome.Shouldweaskpeopletobringfood?Ifweaskpeopletobri
2、ngfood,they’lljustbringpotatochipsandchocolate.ReadthesentencesIwillhaveagoodtimetomorrow.Iwillgotothepartytomorrow.IfIgotothepartytomorrow,I’llhaveagoodtime.合并if引导一个条件状语从句当主句是一般将来时时,if引导的从句必须用现在时来表示将来可能发生的动作或存在的状态。GrammarFocus:if条件句如果明天天气好，汤姆就去公园。Ifitisfinetomorr
3、ow,Tomwillgotothepark.if从句主句if意为“如果”引导的句子在从句中作条件状语，叫做条件状语从句，表示在某种条件下，某事可能会发生。eg.IfIamfree,Iwillgotothemovies.IwillgotothemoviesifIamfree.观察这两句话，我们可以得出：从句在主句之前时，用逗号隔开；从句在主句之后时，不用逗号。If+…,I’ll/you’ll+…↘↙↘↙条件结果Forexample:Ifyoustudy,I’llbehappy.wearjeanstoschool,you’ll
4、besorry.getuplate,you’llbelate.eattoomuch,you’llbefat.washyourclothesyourself……1.Structure结构与时态1.if从句是一般现在时态，主句是一般将来时态ifitishottomorrow,shewillgoswimming.2.if从句是一般现在时，主句用情态动词（canmaymustshould)ifyouworkhard,youcanpasstheexam.3.if从句是一般现在时，主句为祈使句。ifyouarehungry,pleas
5、ehavesomefood.if从句主句原则一般现在时一般将来时主将从现一般现在时情态动词主情从现一般现在时祈使句主祈从现知识归纳1.如果你不赶快走,你就会迟到。2.如果你爱你的父母,你应当帮他们做做家务。3.如果你更友善一些,你会教上很多好朋友。ExerciseIfyoudon’tgosoon,you’llbelate.Youshouldhelpdothehouseworkifyouloveyourparents.Youwillmakelotsoffriendsifyouaremorefriendly.4.如果你带外校的
6、朋友来,老师会让他们离开。5.如果你不完成作业,妈妈不会让你玩电游。6.当你看到BillGates,你会对他说些什么？Ifyoubringfriendsfromotherschools,theteacherwillaskthemtoleave.Ifyoudon’tfinishyourhomework,yourmotherwon’tletyouplaycomputergames.WhatwillyousaytoBillGateswhenyouseehim?3bCompletethesentencesusingyourowni
7、deas.1.IfIgetuplatetomorrow,____________________________2.IfIdon’tfinishmyhomework,____________________________3.IfIdon’tgetenoughexercise,____________________________4.Iwillnothaveenoughtimetostudyif____________________________5.Iwillnotmakeanyfriendsif__________
8、__________________IwillmisstheschoolbusmyteacherwillbeangryIwon’tbestrongIplaycomputergamesalltheday.Ialwaysmakethemupset.ExerciseCompletethesentence.Us
