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1、Ifyougototheparty,you’llhaveagreattime!IfIgetupat7:00,Iwillbelate.IfIamlate,theteacherwillbeangrywithme.Iftheteacherisangrywithme,Iwillbesad.Ifyougetuplate,youwillbelateforschool.①②if从句主句由if引导的从句叫条件状语从句，if意思为“如果”。例如：Wewillgototheparkifit_____________(rain)tomorrow.Gramma
2、r含if条件状语从句的主从复合句1.if条件状语从句中，主句用一般将来时，if从句用___________表示将来,________原则。doesn’t主将从现rain一般现在时Itisgoingtoraintomorrow.Iwillstayathome.Ifit_____tomorrow,I__________athome.rainswillstayIfit____sunnytomorrow,they___________atrip.Itwillbesunnytomorrow.Theywillhaveatriptomorrow.is
3、willhaveHewon’tstudyhard.Hewillfailintheexam.“Ifhe_____studyhard.He_______intheexam.”doesn’twillfailShewillbelate.Ifshe_____toschool,she________late.Sheisgoingtowalktoschool.walkswillbeIfIhavemuchmoney,Iwillbuyabighouse.travelallovertheworld.buylotsofdeliciousfood.IfIhav
4、ealotofmoney,Iwillbuyacar.IfIbuyacar,Iwilltraveleverywhere.IfItraveleverywhere,Iwillbehappy.IfIamhappy,Iwillbehealthy.Shemustseeadentistifshehasatoothache.Youcangoshoppingwithyoursisterifyouhavetimethisafternoon.2.if条件状语从句中，主句可以是must，can，may等情态动词，if从句用___________。例如：Youm
5、uststopifthetrafficlight____(be)red.is一般现在时“主情从现”Ifyoufeelhungry,youshouldeatsomething.Ifyoufeeltired,youmusthavearest.Ifyouareill,youmustgotoseeadoctor.Ifyouareridingabike,youmustbecareful.CallmeifTinacomes.Haveagoodrestifyouaretired.例如：Don’twaitformeifI_____(be)late.3.
6、if条件状语从句中，主句可以是祈使句，从句用____________表示将来。_________原则。am主祈从现一般现在时2.Ifit____(be)coldtomorrow,Iwillwearmysweater.3.Hecangohomeifhe________(finish)hishomework.finishes1.Putupyourhandsifyou_____(have)anyquestions.haveis趁热打铁*Ifyouarehappy,whatwillyoudo?IfIamhappy,Iwillsmile/sing
7、.*Ifyoubecomesad,whatwillyoudo?IfIbecomesad,Iwillcry.*Whatwillhappenifyoudotoomuchwork?IfIdotoomuchwork,Iwillgettired.CompetitionVSifwillshe,callme,I,tellheraboutitIfshecallsme,Iwilltellheraboutit.he,come,nextweekend,I,tellyouIfhecomesnextweekend,Iwilltellyou.notrain,goh
8、iking,thisafternoonIfitdoesn’train,Iwillgohikingthisafternoon.it,besunny,she,flyakiteIfitissunny,shewil
