初二上语法：动词不定式.ppt

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1、你怕Grammar吗?动词不定式TheInfinitiveModule9基本形式用法一、基本形式todosth.肯定否定nottodosth.1.Iwanttoknowhim.迅速找出下列句子中包含的动词不定式：2.Shehopestowriteabook.3.Heaskedmenottostayhere.4.Myfathertoldmenottobelateforschool.二、用法：1、作主语动词不定式作主语常采用it作形式主语，不定式后置的方式，避免头重脚轻。e.g.1)在阳光下读书不好。Toreadinthesunisbad.主语头太大ItIt’

2、sbadtoreadinthesun.1.TolearnEnglishwellisveryimportant.把下列句子改编成it作形式主语：ItisveryimportanttolearnEnglishwell.2.Tostopthekillingishard.Itishardtostopthekilling.3.Tothinkaboutallthoseanimalsindangerissad.Itissadtothinkaboutallthoseanimalsindanger.补充：含有不定式的句式：It+be+adj.+forsb.+todosth.

3、“对某人来说做某事很……”这样的形容词有:easy,hard,difficult,important,interesting,necessary,impossible等。e.g.(1)Itwasdifficultforhim_______(finish)thehomeworkontime.(2)对我来讲回答这个问题太简单了。Itis______forme__________thisquestion.easytoanswertofinish()1.It’snoteasy________________.A.tolearnswimB.tolearntoswim

4、C.learntoswimD.learningtoswimmingB走近中考：2、作宾语不定式用在及物动词后作宾语常见及物动词有：wanttodosth.hopetodosth.liketodosth.begintodosth.trytodosth.needtodosth.forgettodosth.agreetodosth.learntodosth.e.g.Iwanttoseeyou.()1.Hewanted_____anewjob.A.tofindB.findC.foundD.findingA走近中考：3、作表语Herjobistolookafterb

5、abies.e.g.1)她的工作是照看婴儿。不定式用在be动词或系动词后作表语2)他看起来生气了。Heseemstobeangry.=Heseemsangry.4、作后置定语不定式修饰名词或代词，起形容词作用。Ihavealotofhomeworktodo.e.g.我有很多作业要做。他正在找一个房间住。Heislookingforaroomtolivein.()1.I’mhungry.Pleasebringme_______.A.somethingtoeatB.somethingtodrinkC.toeatsomethingD.toeatanythingA

6、走近中考：()2.I’vegot___________.A.threeletterstowritewithB.threeletterstowriteinC.threeletterswritingD.threeletterstowriteD5、作状语不定式修饰句子或动词，表示目的或原因等。I’msorrytohearthat.IcomeheretostudyEnglish.a表原因b表结果TheChinesegovernmentisworkinghardtosavemoreanimalsindangerimprovepeople’slivesmakepeop

7、lerichermakeourcountrystrongermakeourcitymoreandmorebeautiful作状语6、作宾语补足语asksb.(not)todosth.tell,teach,allow(允许)e.g.1)妈妈告诉我不要迟到。Mothertoldmenottobelate.2)爸爸告诉我要成为一名好学生。Fathertoldmetobeagoodstudent.()1.Mymotheroftenasksme____early.A.getupB.gotupC.gettingupD.togetupD走近中考：()2.Theteach

8、ertoldme_____lateagain.A.notbeB.n