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1、2019/8/6,该课件由【语文公社】友情提供,动词不定式,2019/8/6,该课件由【语文公社】友情提供,1不定式的形式：（以动词do为例）,否定式：not + to do,2019/8/6,该课件由【语文公社】友情提供,To teach English is my job. We plan to pay a visit. He seems to know a lot. The meeting to be held tomorrow is put off. The teacher ordered the work to be done. To catch the first bus, he
2、got up early.,（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,2019/8/6,该课件由【语文公社】友情提供,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 to have seen the film. He is pleased to have met his frien
3、d.,2019/8/6,该课件由【语文公社】友情提供,To finish the work in ten minutes is very hard. To lose your heart means failure.,（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 means failure to lose your heart.,2019/8/6,该课件由【语文公社】友情提供,Her job is to clean the hall. He app
4、ears 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.,2019/8/6,该课件由【语文公社】友情提供,如果不定式（宾语）后面有宾语补足语，则用it作形式宾语，真正的宾语（不定式）后置，放在宾语补足语后面 Marx found it important to study the situation in Russia.,（3）作宾语： 常与不定式做宾语连用的动词有： agree,ask, beg ,
5、choose,expect, fail, help, hope, learn manage, offer, plan, pretend, promise, prefer, refuse, want, wish,2019/8/6,该课件由【语文公社】友情提供,I have no choice but to stay here. He did nothing last Sunday but repair his bike. There is nothing to do but wait.,动词不定式也可充当介词宾语,动词不定式与疑问词连用作宾语,He gave us some advice on
6、how to learn English.,find , feel, consider, think, make + it + adj./n+to do I find it possible to ask the question,2019/8/6,该课件由【语文公社】友情提供,（4）作宾语补足语： want, wish, ask, tell, order, beg, permit, help, advise, persuade, allow, prepare, cause, force, call on, wait for, invite.,2019/8/6,该课件由【语文公社】友情提供,I
7、 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,get sth/sb. to do He got the car to start.,2019/8/6,该课件由【语文公社】友情提供,（5）作定语： 动词不定式作定语，与所修饰名词有如下关系：,I have a meeting to attend.,动宾关系：,不定式为不及物
8、动词时，应用介词,He found a good house to live in. The child has nothing to worry about.,2019/8/6,该课件由【语文公社】友情提供,Have you got anything to send? “Have you got anything to be sent?” said the secretary.,如果句子的主语是不定式的执行者，不定式用主动。 如果句子的主语不是不定式的执行者，不定式用被动。,2019/8/6,该课件由【语文公社】友情提供,We have made a plan to finish the w
9、ork.,说明所修饰名词的内容：,He is the first to get here.,被修饰名词是不定式逻辑主语：,2019/8/6,该课件由【语文公社】友情提供,He worked day and night to get the money. She sold her hair to buy the watch chain.,（6）作状语： 表目的：,He arrived late to find the train gone.,表结果：,I visited him only to find him out.,2019/8/6,该课件由【语文公社】友情提供,Its too dark
10、for us to see anything. The question is simple for him to answer.,表程度：,To tell you the truth, I dont like the way he talked.,（7）作独立成分：,2019/8/6,该课件由【语文公社】友情提供,remember to do/doing forget to/doing regret to do/doing mean to do/doing try to do/doing stop to do/doing,2019/8/6,该课件由【语文公社】友情提供,2019/8/6,该课
11、件由【语文公社】友情提供,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 Its good _ (help)others when they are in trouble. 5 I want _ (start) work at once. The man downstairs told the man upstair
12、s not _ (drop)his shoes onto the floor at midnight any more.,to go,to lock,to ask,to help,to start,to drop,2019/8/6,该课件由【语文公社】友情提供,1 You must be hungry. Ill get something _ (eat) 2 Uncle Wang told them how _(make) a plane with wood and metal. 3 The question is how _(get) to the top of the mountain q
13、uickly. 4 She didnt know what _ (say) at the meeting the day before yesterday. 5 ”Stop _ (talk), please. The film has begun.” 6 Can you tell me when you can finish _ (read) these books. 7 I dont know whether she enjoys _ (wear) sun glasses. 8 No _ (smoke),please!,to eat,to make,to get,to say,talking
14、,reading,wearing,smoking,2019/8/6,该课件由【语文公社】友情提供,1 Did you hear her _(sing) in the next room last light. 2 Keep _ (try). You are sure to get a good result. 3 A fridge is useful for _ (keep) vegetables and food cool. 4 He left angrily without _ (say) a word 5 He doesnt like _(dance) at all.,singing,t
15、rying,keeping,saying,dancing,2019/8/6,该课件由【语文公社】友情提供,2019/8/6,该课件由【语文公社】友情提供,2019/8/6,该课件由【语文公社】友情提供,注:1 主语的不定式常用 it带代替，不定式放在后 面。例： It is not easy to learn a foreign language. It is dangerous to play in the street. 2 不定式的否定。not +不定式 例： Tell him not to be late. The policeman told the boys not to play in the street. 3 不定式与凝问词连用, 与what, which , how ,where ,when连用,例： The question is when to start. I dont know where to go. He showed me how to use a computer. Nobody told us what to do.,