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1、If引导的条件状语从句大庆市第51中学贺东辉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“，”.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,pleasenotic
2、emeatonce.1)PleasenoticemeatonceifyouseeTom.2)Ifthegameisover,pleasecallme.2)Pleasecallmeifthegameisover.exercise：句子改写WewillgotoHarbinifitisfinetomorrow.*Ifitisfinetomorrow,wewillgotoHarbin2)Ifhehasthebook,pleaseletmeknow.*Pleaseletmeknowifhehasthebook.3)Iftheycomehere
3、,wewillbehappy.*Wewillbehappyiftheycomehere4)Katewillwatchamovieifsheisfree.*IfKateisfree,shewillwatchamovie.*question:if在状语从句中的位置是怎样的呢主从句的区分Eg:Iwillbringanumbrellaifitrainsoutside.Ifthecarisred,Iwillbuytwo.Ifthegroundisdry,wewillplayfootballthisafternoon.*上述句子中，我们把if后
4、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。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？If引导的条件
5、状语从句1IfyouseeTom,pleasetellhimthenews.IfIcan’tgothere,pleasechooseanotherone.Handinyourpaperiftimeisup.Gobackrightnowifyoufeeltired.Question:这几个if引导的条件状语从句有什么特点？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:Passmetherulerifyou
6、arefree.Ifthecarischeap,buyme2.ChoosethebestanswerIfMary____(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)the
7、book.A.Remember,findB.Remembers,findsC.Remembers,findD.Remember,findsFillintheblankIfIcan’t____(get)upontime,_____(call)meplease.IfKate______(be)singing,_____(notice)hertogetdownatonce.Ifshe_____(know)theanswer,_____(copy)meone.______(cut)thewatermelonifalltheguests___
8、___(be)ready.______(turn)offthelightifshe____(go)out.getcallisnoticeknowscopyCutareTurngoesIf引导的状语从句之主将从现看下面的句子,Ifyou
