if引导的条件状语从句ppt

状语从句,If引导的条件状语从句,状语从句,在复合句中表示的状语可以用来修饰谓语（包括非谓语动词）、定语、状语或整个句子。,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.,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。,1.如果主句是一般将来时，从句则用一般现在时。Ifitrains（从句），Iwillstayathome.Illgowithyouifyoudontwanttogoalone（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。Dontgoandplayfootballifyoudontfinishyourhomework.PleasecallmeifhecomesnextSunday.,If引导的条件状语从句的基本用法:,练一练：1。如果她早点儿起床，就有时间在家里吃早餐Ifshe_alittleearlier,shellhavetimetoeatbreakfastathome.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.,getsup,joinwillhave,rainswontgo,listento,willlike,1.Ifhe_(not,doit),I_(do)it.,2.Ifyou_(be)lateforschool,myteacher_(be)angry.,are,willbe,3Ifshe_(win)theprize,we_(be)happy.,wins,willbe,4.IfI_(not,eat)somuch,I_(get)thinner.,5.Ifyou_(tell)them,they_(not,believe)you.,donteat,willget,tell,wontbelieve,6I_(stay)athome,Ifit_(rain).,7.Ifit_(not,rain),I_(go)out.,8.we_(play)football,Ifitis_(sun).,9.Ifshe_(become)astar,herparents_(not,send)heraway,10.He_(watch)TV,ifhe_(be)free.,willstay,rains,doesntrain,willgo,willplay,sunny,becomes,wontsend,willwatch,is,doesntdo,willdo,1.Imsureifhe_(go)totheparty,he_(have)agreattime.2.Iftherain_(stop)tonight,wewillgotothecinema.3.IllbuyacomputerifI_(have)enoughmoney.4.You_(notget)nervousifyou_(do)enoughexercise.6.Iwanttoknowifhe_(come)tomorrow,ifhe_(come),I_(give)themassagetohim.,goes,willhave,stops,have,wontget,do,comes,willcome,willgive,I_(record)theCDforyoutomorrow.Doessheoften_(lend)moneytoherbrother?Thesnake_(notappear)ifyoumakenoise.Inthefinalexam,I_(get)goodmarks.,willrecord,lend,wontappear,willget,2.Youmay_(pass)theexamifyou_(study)hard.,rains,willstay,pass,study,3.Ifyouwanttorecord,_(press)theredlight.,press,1.IfIt_(rain)tomorrow,I_(stay)athome.,Fillintheblanketswiththeproperform,用括号内所给词的正确形式填空,1.Iftherain_(stop)tonight,wewillgotothecinema.2.IllbuyacomputerifI_(have)enoughmoney.3.You_(notget)nervousifyou_(do)enoughexercise.4.Ifshe_(be)kindtome,I_(notargue)withher.5.Iwanttoknowifhe_(come)tomorrow,ifhe_(come),I_(give)themassagetohim.,stops,have,wontget,do,is,wontargue,willcome,comes,willgive,IfImill,_.,Iwillseeadoctor,Lookandsay,IfImlate,_.,Iwillsaysorry,IfImhungry,Iwill_.,IfImtired,Iwill_.,L