八年级英语下第五单元语法课件

Unit5Ifyougototheparty,youwillhaveagreattime.,Whatwillhappentomorrow?,Itwillbesunnytomorrow.,Theywillhaveatriptomorrow.,用if合并成一句,Theywillhaveatripifitissunnytomorrow.,If在此引导一个条件状语从句。当主句是一般将来时时，if引导的从句必须用一般现在时来代替一般将来时，表示将来可能发生的动作或存在的状态。,if,is,Willbe,Whendoyougetuponweekends?,Igetupat9:00onweekends.,Whatwillhappenifyougetupat9:00thismorning?,Ifyougetupat9:00,youwillbelate.,Ifyoudo,youwillbelate.,Whatwillhappenifyouarrivelateforschool?,Ifyouarrivelateforschool,yourteacherwillbeangrywithyou.,Ifyoudo,yourteacherwillbeangrywithyou.,Whatwillhappenifyourteacherisangrywithyou?,Ifyourteacherisangrywithyou,youwillbesad.,Whatwillhappenifyouwearjeansonweekdays?,Ifyouwearjeans,yourteacherwontletyouin.,Ifyoudo,yourteacherwontletyouin.,letsbin,Dontwearjeansonweekdays!,让某人进来,Ifyoudo,shewillbehappy.,WhatwillhappenifyougotoJennysparty?,Ifyoudo,youwillhaveagreattime.,1.IthinkImgoingtogotothepartywithmyfriend.2.IthinkImgoingtowearjeansonweekdays.3.IthinkIgetupat9:00.4.IthinkImgoingtostayathome.,a.Ifyoudo,theteacherswontletyouin.b.Ifyoudo,youllbelate.c.Ifyoudo,youllbesorry.d.Ifyoudo,youllhaveagreattime.,Lookforthefriend,Whoismyfriend?,Itisgoingtoraintomorrow.,Iwillstayinbed.,Ifitrainstomorrow,Iwillstayinbed.,rains,If,if,or：IwillstayinbedIfitrainstomorrow.,rains,If,温馨提示:if引导的条件状语从句既可放在主句前,也可放在主句后.从句置于主句前时,须有逗号与主句隔开,反之则不用逗号.,Whatwillhappenifyousleepinclass?,Ifyousleepinclass,youwontgetgoodgrades.Ifyousleepinclass,yourteacherwillbeangry.,Youwontgetgoodgradesifyousleepinclass.,Yourteacherwillbeangryifyousleepinclass.,Ifyouplaycomputergamesonweekdays,youllbeverytiredinclass.Ifyouplaycomputergamesonweekdays,yourparentswillbesad.,Youllbeverytiredinclassifyouplaycomputergamesonweekdays.,Yourparentswillbesadifyouplaycomputergamesonweekdays.,Lookatthepictureandmakeupsentencesusing“if”.,Ifyoustudyhard,youwillgetgoodgrades.Ifyoustudyhard,youwillhaveagoodjob.,Youwillgetgoodgradesifyoustudyhard.,Youwillhaveagoodjobifyoustudyhard.,Lookatthepictureandmakeupsentencesusing“if”.,singer,Ifyoubecomeasinger,youwillbefamous.Ifyoubecomeasinger,youwillmakemuchmoney.,Youwillbefamousifyoubecomeasinger.,Ifyoubecomeasinger,youwillmakemuchmoney.,Lookatthepictureandmakeupsentencesusing“if”.,DearJenny,Thanksforinvitingmetotheparty.Ofcourse,present,youarehappy.Ihopeitwontrainthatday.,Becauseifitwontrain,mylittlesonwillcome,too.,Ifhecomes,youarentdisappointed,heisreallyfunny.,OK,seeyouontheparty.,Yours,willbe,doesnt,give,wontbe,Illgototheparty.AndIthinkifIwillgiveyoua,Pleasehelpmecorrectthesentences.,Rose,CorrectandWrite,Writeaboutyourownplansusingsentenceswith“if”and“will”.Choosetwothingsandwriteaboutboth.Example:MaybeIllbecomeateacher.IfIbecomeateacher,Iwillworkwithchildren.Ilovechildren,soIllbehappy.Iwillalsobeabletoworkoutsidesometimes.ButIwontbefamous.MaybeIllbeadoctor.IfIbecomeadoctor,Iwillbeabletohelppeople.ButIwontbeabletoworkoutsideandIwontbeabletoworkwithchildren.SoIthinkIwillbeateacher.,Youcanuse:Doctor:helpothersbusyActor:befamousmakemuchmoneyhavenotimePolice:excitingdangerousbusyworkoutside