条件状语从句

AdverbialClauseofCondition条件状语从句IfyouarehappyIfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitclapyourhandsIfyouarehappyandyouknowitstompyourfeet.Ifyouarehappyandyouknowitstompyourfeet.IfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitstompyourfeetIfyouarehappyandyouknowitwinkyoureyeIfyouarehappyandyouknowitwinkyoureyeIfyouarehappyandyouknowitneverbeafraidtoshowitIfyouarehappyandyouknowitwinkyoureyeIfyouarehappy,whatwillyoudo?IfIamhappy,Iwillsmile.Ifyoubecomesad,whatwillyoudo?IfIbecomesad,Iwillcry.Sheisdoingherhomework.Ifyouarehard-working,youwillgetgoodgrades.Shegetsgoodgrades.Ifyouplaycomputergamesonweekdays,you’llbeverytiredinclassyourparentswillbesad.youwon’tgetgoodgrades.youreyeswillbepoorShewillbelate.Ifshe_____toschool,she________late.Sheisgoingtowalktoschool.walkswillbe位置：从句可放在主句之前或之后，但是放在主句之前须有逗号隔开eg:如果我有足够的钱，我就去环游世界If引导条件状语从句定义：if“如果,假如”它引导的句子表示某事发生所需的条件，即“在…条件下，某事才能发生”，在句子中充当状语，因此称之为条件状语从句。（If引导的条件状语从句表示假如有从句的动作发生，就会有主句动作的发生）IfIhaveenoughmoney,Iwilltravelaroundtheworld=IwilltravelaroundtheworldifIhaveenoughmoneyIf条件句：条件句用于陈述语气，表示假设的情况可能发生，其中if是“如果”的意思。主句一般将来时，从句用一般现在时。构成条件从句主句时态If＋一般现在时主语＋shall/will+动词原形例句Ifhecomes,hewilltakeustothezoo.用法：1.如果主句是一般将来时，从句则用一般现在时。Ifitrains（从句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（从句）.2.如果主句含有must,may,can等情态动词，从句也要用一般现在时。Ifyoudrivetoofast,youmayhaveanaccident.Youmuststopifthetrafficisred.Ifyoufinishthehomework，youcangohome．如果你作业做完了就可以回家了。Ifyouwanttoloseweightyoumust/shouldeatlessbread.如果你想减肥，你必须少吃面包。•3.如果主句是祈使句，从句同样要用一般现在时。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.1.如果主句是一般将来时，从句则用一般现在时。Ifitrains（从句），Iwillstayathome.I’llgowithyouifyoudon’twanttogoalone（从句）.2.如果主句含有must,may,can等情态动词，从句也要用一般现在时。Ifyoudrivetoofast,youmayhaveanaccident.Youmuststopifthetrafficisred.3.如果主句是祈使句，从句同样要用一般现在时。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.if条件状语从句结构及时态Revision练一练：1。如果她早点儿起床，就有时间在家里吃早餐Ifshe________alittleearlier,she’llhavetimetoeatbreakfastathome.2。如果你参加聚会，你将会过得很开心。Ifyou____theparty,you_________agreattime.3。如果明天下雨，我们将不去野餐Ifit____tomorrow,we_______forapicnic.4。如果你经常听英文歌，你将会喜欢英语Ifyouoften_______Englishsongs,you______English.getsupjoinwillhaverainswon’tgolistentowilllike1.Ifhe____________(not,doit),I___________(do)it.2.Ifyou____(be)lateforschool,myteacher________(be)angry.arewillbe3Ifshe________(win)theprize,we_______(be)happy.winswillbe4.IfI_________(not,eat)somuch,I_________(get)thinner.5.Ifyou______(tell)them,they_____________(not,believe)you.don’teatwillgettellwon’tbelieve6I_________(stay)athome,Ifit__________(rain).7.Ifit____________(not,rain),I_________(go)out.8.we__________(play)football,Ifitis_________(sun).9.Ifshe__________(become)astar,herparents____________(not,send)heraway10.He_________(watch)TV,ifhe______(be)free.willstayrainsdoesn’trainwillgowillplaysunnybecomeswon’tsendwillwatchisdoesn’tdowilldo2.Youmay______(pass)theexamifyou___(study)hard.rainswillstaypassstudy3.Ifyouwanttorecord,________(press)theredlight.press1.IfIt______(rain)tomorrow,I______(stay)athome.Fillintheblanketswiththeproperform1.I’msureifhe_____(go)totheparty,he________(have)agreattime.2.Iftherain_______(stop)tonight,wewillgotothecinema.3.I’llbuyacomputerifI______(have)enoughmoney.4.You_________(notget)nervousifyou_____(do)enoughexercise.6.Iwanttoknowifhe_________(come)tomorrow,ifhe_______(come),I__________(give)themassagetohim.goeswillhavestopshavewon’tgetdocomeswillcomewillgiveIfI’mill,__________________.IwillseeadoctorLookandsayIfI’mlate,_________________.IwillsaysorryIfI’mhungry,Iwill______________.IfI’mtired,Iwill_____________.LookandsayeatsomefoodhavearestIfitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketballIfyouarefreethisweekend,whatwillyoudo?IfIamfree,…sleepwatchTVplaycomputergamespracticeIfyouwanttogetgoodmarks,dowhat?Don’tdowhat?•Ifyouwanttogetgoodmarks,__________.•Ifyouwanttogetgoodmarks,•don’t__________.studyhardlistentoteacherscarefully.dohomeworkbyyourself.copyyourhomework.talkintheclasscheatintheexamsIfyouhaveenoughpocketmoney,whatwillyoubuy?•IfIhaveenoughpocketmoney,•I____________________.IfyouinviteforeignerstoChina,wherewillyougo?•Iwillgoto_________,•ifIinviteforeignerstoChina.MountTaiWestlakeHainanGameRulesTopic1:IfIamhappy,……A:IfIamhappy,Iwillgoshopping.B:IfIgoshopping,Icanbuysomeclothes.C:IfIcanbuysomeclothes,Iwillspendmuchmoney.D:IfIspendmuchmoney,……E:…..【比一比】：一分钟内，根据所给话题，看同学们能接出多少条件状语从句。【注意】在句子接龙时，主句与从句变换时，要注意从句时态的变换，从句用一般现在时。•If条件句的替代形式：•（1）祈使句+and/or+陈述句（谓语动词通常用将来时态）。其中，and表示句意顺承；or表示转折，意为“否则”。•e.g.Ifyouworkhard,you’llpasstheexameasily.•=Workhard,andyou’llpasstheexameasily.•Ifyoudon’tworkhard,you’llfallbehindothers.•=Workhard,oryou’llfallbehindothers.（2）用介词with,without的替代形式：e.g.Ifthereisnowater,thefishmaydie.=Fishmaydiewithoutwater.Ifyouhelpme,I’llfinishm