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1、GrammarIf…Itwillbesunnytomorrow.Findtherule(1)Wewillhaveapicnictomorrow.Findtherule(1)Wewillhaveapicnicifit’ssunnytomorrow.Itwillbesunnytomorrow.Wewillhaveapicnictomorrow.IwilltakepartintheEnglishcompetition.Findtherule(2)Dadwillbuyapenforme.Findtherule(2)Dad

2、willbuyapenformeifItakepartintheEnglishcompetition.IwilltakepartintheEnglishcompetition.Dadwillbuyapenforme.Wewillgotothepark.Itwon’traintomorrow.Wewillgototheparkifitdoesn’traintomorrow.Findtherule(3)if條件狀語從句中，主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)表示將來。Ifyouwon’thurryup,youwillm

3、isstheearlybus.Ifyoudon’thurryup,youwillmisstheearlybus.What’stherule?（1）Ifyou...,youwill...if條件狀語從句中，如果主句有must，can，may等情態(tài)動(dòng)詞，從句用一般現(xiàn)在時(shí)。Youmuststopifthetrafficlightisred.Youmaygofishingifyouarefree.Hecangohomeifhefinisheshishomework.What’stherule?（2）if條件狀語從句中，如

4、果主句是祈使句，從句用一般現(xiàn)在時(shí)。Letmeknowifhecomes.Don’twaitformeifIamlate.Putupyourhandsifyouhaveanyquestions.What’stherule?（3）2.If條件狀語從句中，如果主句有must，can，may等情態(tài)動(dòng)詞，從句用一般現(xiàn)在時(shí)。（主情從現(xiàn)）3.If條件狀語從句中，如果主句是祈使句，從句用一般現(xiàn)在時(shí)。（主祈從現(xiàn)）1.If條件狀語從句中，主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)表示將來。（主將從現(xiàn)）Rules3.IfMary(buy)th

5、ebook,shewilluseupallhermoney.1.IfI(be)free,I’llvisitmyauntnextSunday.4.IfI(study)hard,I’llwintheEnglishcompetition.2.Ifit(be)coldtomorrow,Iwillwearmysweater.amisbuysstudyExercise(1):5.IfaUFO(land)infrontofme,I(go)intolookforthealien.landswillgohappyA:Whatwil

6、lyoudoifyouarehappy?B:Iwill…ifIamhappy.singasong/goshopping/watchTV/visit…/…Exercise(2):1.Callmeiftheboss(willcome/comes).comes2.Shemustseeadentistifshe(has/willhave)atoothache.has3.Haveagoodrestifyou(willbe/are)tired.are4.Youcangoshoppingwithyoursisterifyou(

7、have/willhave)timethisafternoon.have5.Ifthere(willbe/is)acaraccident,they(willcall/call)110atonce.iswillcallsadＡ:Whatwillyoudoifyouaresad?B:Iwill…ifIamsad.cry/talktomyparents/sleep/…Fillintheblankswiththewordsgiven.Ifyouhelpothers,everyone_________(help)you.I

8、fhe___________(eat)muchmeat,he’llbeheavy.Ifit_______(rain),she_____________(read)booksathome.Ifyouplaycomputergamestoomuch,you_________(be)tired.Ifyou_________(bring)snackstoschool,thetea