中考专项讲解及实战不定式练习

　　中考专项讲解及实战不定式练习

　　 不定式

　　 不定式和动词象一对姐妹一样亲密,本不该拆开来讲,可是篇幅有限,只能让他们分开了。不定式的构成非常简单,告诉我是什么?对!是to+动词原形。当然啦,to有时也可以不带。动词不定式没有人称和数的变化,可以担当除谓语外的任何句子成分。那什么时候可以不带to呢? Listen to me carefully.

　　 不定式省to有四种情况:

　　 使役动词 let,have,make 等后接不定式。如:Let him go! 让他走!

　　 would rather,had better后。如:You had better stay at home.你最好呆在家里。

　　 Why... / why not...后。如:Why not have a good rest on Sunday? 为什么星期天不好好休息一下呢?

　　 感官动词 see, watch, look at, hear, listen to, smell,feel, find 等后作宾补,省to。如:I saw him dance. 我看见他跳舞。

　　 注意:这些情况在被动句中可千万不可省to 哟! 如:The boss made them work the whole night. 变成被动句:They were made to work the whole night.

　　 不定式的特殊用法:

　　 It与不定式:动词不定式可以做主语,但如果动词不定式太长,显得头重脚轻的,那么我们就可用形式主语it代替,而把真正主语(即不定式)放于句尾。

　　 如: It is not difficult for me to study English well.(对我来说学好英语是可能的。)

　　 不定式还可以充当句子的宾语,但有些动词,如find,think,believe 等,在语法上不能接受不定式作宾语,只有用it作形式宾语,从而把动词不定式置于句尾。这样的不定式可继续充当其宾语的作用。

　　 如: I found it difficult to fall asleep.我发现很难入睡。

　　 还有一点:动词不定式,还可用在how,when,where,what,which 等疑问代词或副词之后,与其共同作宾语。如:I don't know how to use a computer.我不知道怎样使用电脑。Remember?

　　 too...to...和enough...to:too...to表达太 ... 一致于不能...。

　　 enough ... to 表达 足以...。这两个词组的用法用两个例子就可以说清楚了。

　　 The box is too heavy for me to lift.这个箱子太沉了,我提不动。

　　 He is old enough to go to school.他到上学的年龄了。也就是说,他的年龄足够上学了。记住这两个句子就可以举一反三,应用自如。你记住了吗?

　　 好吧,再试一把趁热打铁!

　　 练习:

　　 1. Tell him ___ the window.

　　 A. to close not

　　 B. not to close

　　 C. to not close

　　 D. not close

　　 2. Paul doesn't have to be made ___. He always works hard.

　　 A. learn

　　 B. to learn

　　 C. learned

　　 D. learning

　　 3. You'd better _______the story in Japanese.

　　 A. say

　　 B. speak

　　 C. tell

　　 D. talk

　　 4. The patient was warned ___ oily food after the operation.

　　 A. to eat not

　　 B. eating not

　　 C. not to eat

　　 D. not eating

　　 5. ---- I usually go there by train.

　　 ---- Why not ___ by boat for a change?

　　 A. to try going

　　 B. trying to go

　　 C. to try and go

　　 D. try going

　　 6. There are some books on the floor, would you like ________?

　　 A. to pick them up

　　 B. to pick up them

　　 C. pick it up

　　 D. pick up it

　　 7. She is very ill, let's _______a doctor at once.

　　 A. to wake up

　　 B. send for

　　 C. to pay for

　　 D. pay for

　　 8. I want ________a teacher when I grow up.

　　 A. to be

　　 B. to

　　 C. be

　　 D. being

　　 9. It's cold here. You'd better ______ your coat.

　　 A. not take out

　　 B. not to take down

　　 C. not take off

　　 D. not to take away

　　 10. My mother told me ________more water.

　　 A. drinking

　　 B. drank

　　 C. to drink

　　 D. drink

　　 实战:

　　 1. You'd better _______read in the sun.

　　 A. not to

　　 B. not

　　 C. don't

　　 D. to

　　 2. You aren't a new driver, are you? _______.

　　 A. No, I am

　　 B. Yes, I'm not

　　 C. No, you are

　　 D. Yes, I am

　　 3. Must I stay here now?_________.

　　 A. No, you mustn't

　　 B. No, you needn't

　　 C. Yes, you can

　　 D. Yes, you may

　　 4. There is _______ s in the word bus.

　　 A. a

　　 B. an

　　 C. the

　　 D. /

　　 5. Neithere of us ______a doctor.

　　 A. is

　　 B. isn't

　　 C. are

　　 D. aren't

　　 6. Who was the first in the girls'_________race?

　　 A. 400 metre

　　 B. 400-metre

　　 C. 400 metres

　　 D. 400-metres

　　 7. It's too noisy here, I can't _______.

　　 A. go to sleep

　　 B. fall to sleep

　　 C. sleeping

　　 D. get to sleep

　　 8. The story happened ________ the evening of October 20, 1995.

　　 A. at

　　 B. on

　　 C. in

　　 D. to

　　 9. Could I speak to Mr Gao, please? ________. He has gone to the hospital.

　　 A. I think so

　　 B. Certainly, you can

　　 C. I'm afraid not

　　 D. I'm not sure

　　 10. I'm sorry to trouble you, Miss Hu. ________.

　　 A. Fine, thank you.

　　 B. All right.

　　 C. It's very kind of you .

　　 D. It doesn't matter.

　　 11. Can you tell me where________?

　　 A. is the post office

　　 B. the post office is

　　 C. does the post office

　　 D. the post office does

　　 12. In England, the first name is _______name, but in China, the first name is ______ name.

　　 A. family, given

　　 B. given, family

　　 C. family, family

　　 D. given, given

　　 13. Li Ping met an old friend of _______ on a train yesterday.

　　 A. he

　　 B. him

　　 C. his

　　 D. her

　　 14. Kate is ________ girl.

　　 A. a eighteen-year-old

　　 B. a eighteen-years-old

　　 C. an eighteen -years-old

　　 D. an eighteen-year-old

　　 15. Our city is getting ________.

　　 A. beautiful and beautiful

　　 B. beautifuler and beautifuler

　　 C. more and more beautiful

　　 D. more beautifler and more beautifuler

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