英语：MODULE 4 SANDSTORMS IN ASIA 课件（外研版必修3）.ppt

1、动词不定式 Module 4 grammar:infinitiveRevision(复习回顾)l 1.important phrases of the passage l 2.translation of some sentencesLead-inl 1.Scientists have tried many ways to solvethis problem.l 2 To have been caught in a sandstorm was a terrible experience.l 3.There was nothng to be donel 4.Its frightening to

2、be cycling to work in a sandstorm语法现象：to do 不定式学习目标l 知识目标：1.to do 不定式的基本形态l2.在句法中的功能。l 能力目标：熟练运用语法规则并能完成相应的练习Task1 l Read the examples in activity 1 on P34 and fill the table 1不定式的形式：（以动词do为例）主动被动一般式to do进行式完成式否定式：not+to do时态语态to be doingto be doneto have been doneto have done练习1（基础练习模仿）l Finish act

3、ivity 2 on P 34l 4).need to be donel doingl to do To teach English is my job.We plan to pay a visit.（1）一般式：所表示的动作与谓语动词动作同时发生或发生在谓语动词动作之后 The boy pretended to be working hard.He seems to be reading in his room.(2)进行式：所表示的动作与谓语动词动作同时发生，（3）完成式：表示的动作发生在谓语动词动作之前I regretted to have told a lie.I happened t

4、o have seen the film.He is pleased to have met his friend.练习2（选对时态）l Finish activity 3 on P 85To see is to believeTo finish the work in ten minutes is very hardTo learn English well is not easyII.功能1 作主语动词不定式短语作主语时，常用it作形式主语，例如上面两句可用如下形式：It is very hard to finish the work in ten minutes.It is not ea

5、sy to learn English well.眼见为实Her job is to clean the hall.He appears to have caught a cold.（2）作表语作表语的不定式带to与不带to。作表语的不定式通常带to，当主语部分含有实义动词do，不定式作表语可省to。The only thing I can do is(to)wait.I want to talk to you.We decided to go at once（3）作宾语：常与不定式做宾语连用的动词有：agree,ask,beg,choose,expect,fail,help,hope,lea

6、rn manage,offer,plan,pretend,promise,prefer,refuse,want,wishI saw him cross the road.He was seen to cross the road.有些动词如make,let,have,see,find,watch,observe,notice,listen to,hear,feel 与不带to的不定式连用，但改为被动语态时，不定式要加to练习3(能力提高)Finish activity 3 on P34（综合运用）1 Do you know when _ (go)to the farm.2 Please remember _(lock)the door when you leave the room.3 Please dont forget _(ask)Mr Johnson to come tomorrow party.4.You must be hungry.Ill get something _ (eat)to helpto startto dropto eatSummary(课堂总结)1.Evaluation 2.Homework Thank you