If引导的条件状语从句PPT课件VIP

-,1,If引导的条件状语从句,大庆市第51中学贺东辉,-,2,If在状语从句中的位置,If引导的条件状语从句，如下列的例子：Ifyouknowtheanswer,pleasetellme.Iftheycomehere,wewillpickthemup.ShewillsendmeanemailifInoticeher.*由此可以看出，if引导的句子放在句首，后面的句子连接中用“，”.如果放在句子当中，两个连接的句子不需要加“，”.,-,3,eg:,1)如果你看见Tom,请立刻通知我。2)如果比赛结束了，请给我打电话。1)IfyouseeTom,pleasenoticemeatonce.1)PleasenoticemeatonceifyouseeTom.2)Ifthegameisover,pleasecallme.2)Pleasecallmeifthegameisover.,-,4,exercise：句子改写,WewillgotoHarbinifitisfinetomorrow.*Ifitisfinetomorrow,wewillgotoHarbin2)Ifhehasthebook,pleaseletmeknow.*Pleaseletmeknowifhehasthebook.3)Iftheycomehere,wewillbehappy.*Wewillbehappyiftheycomehere4)Katewillwatchamovieifsheisfree.*IfKateisfree,shewillwatchamovie.*question:if在状语从句中的位置是怎样的呢,-,5,主从句的区分,Eg:Iwillbringanumbrellaifitrainsoutside.Ifthecarisred,Iwillbuytwo.Ifthegroundisdry,wewillplayfootballthisafternoon.*上述句子中，我们把if后面引导的句子叫做从句，句子的另外一部分叫做主句。If叫引导词。,-,6,判断下列句子中的主句和从句,Ifyouhaveenoughmoney,wewillbuyacar.IfKateisangry,Tomwillbeveryscared.Wewilllaughathimifhegetspoorscore.Pleasegohomeifyouhaveanyproblem.Turnleftifyouseetheredstone.*1)从+主2）从+主3）主+从4）主+从5）主+从Question:if引导的句子叫什么？另外一部分叫什么？,-,7,If引导的条件状语从句1,IfyouseeTom,pleasetellhimthenews.IfIcantgothere,pleasechooseanotherone.Handinyourpaperiftimeisup.Gobackrightnowifyoufeeltired.Question:这几个if引导的条件状语从句有什么特点？,-,8,If引导的状语从句之祈使句,上述的例子概况为If+从句+主句（祈使句）或者主句（祈使句）+if+从句即：在主句和从句都是一般现在时态的情况下，主句用祈使句，从句用一般现在时。Eg:Passmetherulerifyouarefree.Ifthecarischeap,buyme2.,-,9,Choosethebestanswer,IfMary_(want)toeatsth,_(give)heratonce.A.want,giveB.wants,giveC.wants,givesD.want,gives2.IfTony_(have)time,_(go)shoppingwithhim.A.have,goB.has,goC.has,goesD.have,goes3._(remember)allthewordsifhe_(find)thebook.A.Remember,findB.Remembers,findsC.Remembers,findD.Remember,finds,-,10,Fillintheblank,IfIcant_(get)upontime,_(call)meplease.IfKate_(be)singing,_(notice)hertogetdownatonce.Ifshe_(know)theanswer,_(copy)meone._(cut)thewatermelonifalltheguests_(be)ready._(turn)offthelightifshe_(go)out.,get,call,is,notice,knows,copy,Cut,are,Turn,goes,-,11,If引导的状语从句之主将从现,看下面的句子,Ifyoucancomehere,bringmeabook.表示的是一种可能的情况。在这个句子中，主句用祈使句，从句用一般现在时态。可是如果句子说，“如果你不能来，我会自己去取”，该怎么表达呢？*Ifyoucantcomehere,Iwillbringitmyself.,-,12,像这种从句用一般现在时，主句用将来时态的句子，就是if引导的第二种条件状语的情况，简称“主将从现”。Eg:Ifyoutellmethetruth,Iwillbecrazy.Ifshecomeshere,Iwillhavelunchwithher.Wewilltakeyouhomeifourcarisworking.Hewillsmokeifthereisnobody.,-,13,Choosethebestanswer.IfMary_(fly)toShanghai,she_(see)myuncle.A.fly，willseeB.flies,willseeC.willfly,sees,D.flies,see2.IfTom_(open)thebox,father_(be)angry.A.opens,willbeB.willopen,beC.opens,isD.willopen,willbe3.Daming_(cook)themealhimselfifmum_(be)notathome.cook,isB.willcook,willbeC.willcook,isD.cook,willbe,-,14,Fillintheblank,IfI_(see)them,I_(tell)themtheresult.Ifit_(snow),we_(go)skating.Tony_(play)footballifit_(be)notcold.We_(get)thefirstplaceifnobody_(catch)us.They_(win)ifthegame_(be)over.Question:什么叫“主将从现”？,see,willtell,snows,willgo,willplay,is,willget,catches,willwin,is,-,15,主将从现练习,IfI_(have)enoughmoney,I_(buy)anicecar.A.have,buyB.willhave,willbuyC.willhave,buy.D.have,willbuy.Ifshe_(read)thenotice,she_(notmake)themistake.A.read,doesntmakeB.willread,wontmakeC.willread,wontmakeD.reads,wontmakeMary_(notgo)thereifnobody_(tell)hertheaddress.A.doesntgo,tells.B.wontgo,tellsC.doesntgo,willtellD.wontgo,tell,-,16,改错,Iftheyknowtheanswer,theytellmehowtodo.Iwillcookmyselfifshewillgoout.WewillflytoShanghaiifthedaywasfine.Mikewillgohomeifthereisnothomework.Shecopiesitagainifthebossgoesback.Davidwilleatalotofwatermelonsifhefeelhungry.1.willtell2.goes3.is4.no5.willcopy6.feels,-,17,translation,如果你看到Tom，你就会知道真相了。如果有人跟我撒谎，我就揍他。如果你飞到月球上，你就会看到蓝色的地球。如果你在伦敦，你就会看奥运会了。如果你能早点到，我们就不会错过火车了,-,18,answer