外研八下Module 5 if 用法.ppt

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1、If引导的条件状语从句的复习1IfI_______________(notunderstand）,Iwillaskmyteacherforhelp.IfI__________(copy)yourhomework,Iwillcheatmyself.3Ifshe_______________(notget)upearly,she’llmisstheearlybus.4Ifyourmother_______(buy)thebookforyou,itwillbegoodforyourstudy.don’tunderstandcopydoesn’tgetbuys5.Ifyo

2、u____________(notwork)hard,you_________(notpass)theexam.6.Ifshe________(mend)thecomputer,herfather___________(notblame).7.Ifyourbrother____________(break)thewindow,hewillfeelverysorryforthat.8.Ifthecomputer(notwork),menditplease.don’tworkwillnotmendswillnotbreaksdoesn’twork找出下列句子中哪些是i

3、f条件状语从句，哪些是if宾语从句1.Canyoutellmeifshecancometothemeeting?2.Shewillnotgothere,ifitisrainytomorrow.3.Ican’tguessifshewillbeangry.4.Ifwehelpeachother,webothwillgetgoodresults.，，if引导的条件状语从句和if引导的宾语从句的区分:If在宾语从句中翻译为“是否”If在条件状语从句中翻译为“如果”I’llgotoseeyouifIamfreenextweek.Iwanttoknowifheisateach

4、er.whether1.if在句中的含义不同2.if在从句中的位置不同If引导的宾语从句放在主句之后；而if引导的状语从句可放在主句之前也可放在主句之后=Ifitdoesn’train,Iwillgoouttomorrow.Iwillgoouttomorrowifitdoesn’train.Idon’tknowifthetrainhasarrived.3.时态的区别If引导的宾语从句的时态由主句时态定；If引导条件状语从句的时态为一般现在时，主句为一般将来时----“主将从现”Iwanttoknowifthereasportsmeetingnextmonth.If

5、it,we’llholdit.doesn’trainwillbe4.标点不同If引导的条件状语从句放于句首时多用逗号隔开；而if引导的宾语从句则不能。1.Ifshe_______(notbe)interestedinmath,shewillfinditveryboring.2.Ifyou_________(get)highscores,yourparentswillbeproudofyou.3.Ifyou_________(be)happy,wewillbehappy.4.Ifshe(translate)thesentencewordbyword,she_____

6、___(get)itstruemeaning.isn’tgetaretranslateswillget练一练：