无忧PPT整理发布IfIf引导的条件状语引导的条件状语从句从句Revision_Revision_selfcheckselfcheckIfIf引导的条件状语引导的条件状语从句从句Revision_Revision_selfcheckselfcheck无忧PPT整理发布位置: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=IwilltravelaroundtheworldifIhaveenoughmoney无忧PPT整理发布If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.无忧PPT整理发布用法: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。无忧PPT整理发布•3.如果主句是祈使句,从句同样要用一般现在时。Don’tgoandplayfootballifyoudon’tfinishyourhomework.PleasecallmeifhecomesnextSunday.无忧PPT整理发布•1.主将从祈•2.主将从现if…will/won’t•3.主情(can,may,should,must)从现无忧PPT整理发布IfI’mill,__________________.IwillseeadoctorLookandsayLookandsayIfI’mlate,_________________.Iwillsaysorry无忧PPT整理发布IfI’mhungry,Iwill______________.IfI’mtired,Iwill_____________.LookandsayLookandsayeatsomefoodhavearest无忧PPT整理发布Ifitrainstomorrow,I_____________________.willwatchTVathomeIfit_____________tomorrow,________________.I’llplaybasketballdoesn’trainIwon’t________________.playbasketball无忧PPT整理发布Ifthetelephonerings,Ifyougetuplate,youwillbelateforschool.LookandsayLookandsayIwillanswerit.无忧PPT整理发布IfIfyoufeelhungry,youfeelhungry,youyoushouldshouldeatsomething.eatsomething.Ifyoufeeltired,,youyoumusthavearesthavearest.无忧PPT整理发布IfIfyouareill,youyouareill,youshouldshouldgotoseeadoctorgotoseeadoctor..IfIfyouareridingabikeinyouareridingabikeinthestreet,youthestreet,youmustmustbebeverycareful.verycareful.无忧PPT整理发布1.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’tgetdocomeswillcomewillgive无忧PPT整理发布练一练: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’tgolistentowilllike无忧PPT整理发布1.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_________...