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1、EnjoythesongIfyouarehappyIfIamhappy,Iwillsmile.Iftheyarehappy,theywillsinganddance.SectionAUnit5Ifyougototheparty,you’llhaveagreattime!一条牛仔裤apairofjeansletsbin让某人进入（来）是动副结构代词是宾语时必须放在中间。其反义词为letsbout让某人出去别让那个男孩儿进来！Don’tlettheboyin!让他出去！Lethimout.organizethepartygames组织聚会游戏Whatwil
2、lhappentomorrow?Itwillbesunnytomorrow.Theywillplayfootballtomorrow.用if合并成一句Theywillplayfootballifitissunnytomorrow.Ifitissunnytomorrow,theywillplayfootball.ifisWillbe如果明天下雨，我将弹钢琴。Ifitisrainytomorrow,Iwillplaythepiano.berainyplaythepianoLookatthepictureandmakeupsentencesusing“if”
3、.Exercisehealthy如果我锻炼，我将健康。IfIexercise,Iwillbehealthy.Whendoyougetuponweekends?(9:00)Igetupat9:00onweekends.Whatwillhappenifyougetupat9:00thismorning?(IfI…,Iwill…)IfIgetupat9:00,Iwillbelate.IwillbelateifIgetupat9:00.Whatwillhappenifyouarelateforschool?(IfI…,myteacherwill……)IfIa
4、mlateforschool,myteacherwillbeangrywithme.MyteacherwillbeangrywithmeifIamlateforschool.teacherWhatwillhappenifyourteacherisangrywithyou?(Ifmyteacher…,Iwill…)Ifmyteacherisangrywithme,Iwillbesad.Iwillbesadifmyteacherisangrywithme.Whatwillhappenifyougetupat9:00thismorning?IfIgetupa
5、t9:00,Iwillbelate.IfIamlate,myteacherwillbeangrywithme.Ifmyteacherisangrywithme,Iwillbesad.IfIamsad,Iwilltalkwithmybestfriend.if“如果”，引导的条件状语从句1时态－－主将从现主句一般将来时，从句一般现在时2条件状语从句通常由连词if引导，意为“如果、假如”，主句不能用begoingto表示将来，而应该用will,shall(主语为第一人称）1.Ifshe(come)heretomorrow,I(ask)hertocallyou
6、.2.Ifwe(work)harder,we(get)bettergrades.comeswillaskworkwillgetWhatwillhappenifyousleepinclass?IfI_____inclass,I________(get)badgrades.IwillgetbadgradesifIsleepinclass.sleepwillget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.IfI____computergamesonweekdays,I_____(be
7、)verytiredinclass.I’llbeverytiredinclassifIplaycomputergamesonweekdays.Whatwillhappenifyouplaycomputergamesonweekdays?playwillbeIfI_____hard,I_____(get)goodgrades.IwillgetgoodgradesifIstudyhard.Whatwillhappenifyoustudyhard?studywillget(1)ifwillshe,callme,I,tellheraboutitIfshecal
8、lsme,Iwilltellheraboutit.(2)he,havefreetime,got
