七年级英语动词不定式

The ice is hard enough to skate on.
He bought a toy to play with.
7.疑问词who, what, which, where, when, how 加to do可构成不定式短语，在句中可用作主语、 宾语、宾语补足语、表语等。
When to start has not been decided. (主语)
My wish is to be a scientist.
6.用作定语（这时不定式与被修饰词有动宾关系。 若是不及物动词，介词不能省略） Give me something to drink. I have two books to read.
They have much food to eat. He asked for a room to live in. I don’t have a pen to write with.
Revision
The infinitive 动词不定式
制作人：张树梓
构成：to + do(动词原形) 用法： 1. 用作宾语 (v. + to do ) I want to buy a computer. She hopes to find a better job. I wish to go with you. need to do learn to do agree to do plan to do decide to do refuse to do begin to do start to do try to do forget to do remember to do like to do Stop to do go on to do
C 2. It is better to lose one’s life than _______.
A. if you lose your spirit B. losing his spirit C. to lose one’s spirit D. your spirit getting lost
3. – I can’t work in this way.
B
7. There isn’t any difference between the two. I really don’t know ________. B A. where to choose C. what to choΒιβλιοθήκη Baiduse A. to carry it C. to carry A. to use C. how to use it B. which to choose D. to choose which B. not to carry it D. not to carry B. use it D. uses
2. 用作宾语补足语：(v. + sb. + to do )
She asked me to help her. The teacher told him to come on time. Edison’s mother taught him to read and write. want sb to do get sb to do find sb to be would like sb to do wish sb to do order sb to do like sb to do help sb to do
-- Why not _______ B it in some other way?
A. try to do
C. trying to do decision, you’d better 论) with your parents. A. reach; have C. reach; having
B. try doing
D. trying doing
4. Since you find it difficult _______ a
D
a discussion( 讨 B. reaching; have D. to reach; have
D 5. My father hates(痛恨) _______. He never allows me _______.
3. 用作状语(adverbial)：
He came to show me his new CD player. (目的) I went there to see my teacher. (目的)
She came back to get her English book.
(目的)
The boy was too frightened to move. （结果）
C 8. The bag is too heavy for me _______.
C 9. The teacher will teach him _______.
找出句子中的不定式，并说出作用： 1. It takes you ten minutes to get there. 主语
2. I hope to see him soon.
作宾语补足语不带to 的情况： Let me do it. I saw him cross the street.
常见动词有： 使役动词: let, make, have 感官动词: see, watch, hear, feel, listen to 比较： I heard her singing in the next room. I heard her sing in the next room.
I don’t know what to do. (宾语) He can tell you where to get the book. (宾语补足语) The question is who(m) to ask. (表语)
比较（Compare）
I don’t know what to do. I don’t know how to do it. I don’t know what to do about it.
A. to smoke; to smoke B. smoking; smoking C. smoke; smoking D. smoking; to smoke 6. The girl was beginning _______. A. get angry C. getting angry B. to get angry D. angry
3. To say is easy, to do is difficult.
It is easy to say, it is difficult to do.
5.用作表语
His work is to feed the animals. Her job is to look after the patients.
Exercises:
1. -- You’ve done very well this time.
C -- It’s really kind ________.
A. for you to say so B. for you saying so
C. of you to say so D. of you saying so
宾语
3. His wish is to become an artist. 表语
4. People eat to live, but not live to eat. 状语
5. I have a lot to tell you. 定语
6. It’s not right to be always thinking of oneself. 主语 7. We often see him play football. 宾语补足语
4.用作主语 （这时可将其用形式主语it来替换） 1.To be here at Christmas time is my dream. It is my dream to be here at Christmas time. 2. To go abroad is his dream. It is his dream to go abroad.