中考英语语法讲解资料及练习：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
中考英语语法讲解资料及练习：不定式的延伸内容：尖子生经验谈：日常学习该如何安排
很多学生看上去很用功，可成绩总是不理想。原因之一是，学习效率太低。同样的时间内，只能掌握别人学到知识的一半，这样怎么能学好？学习要讲究效率，提高效率，途径大致有以下几点：
一、每天保证8小时睡眠 晚上不要熬夜，定时就寝。中午坚持午睡。充足的睡眠、饱满的精神是提高效率的基本要求。
二、学习时要全神贯注 玩的时候痛快玩，学的时候认真学。一天到晚伏案苦读，不是良策。学习到一定程度就得休息、补充能量。学习之余，一定要注意休息。但学习时，一定要全身心地投入，手脑并用。我学习的时侯常有陶渊明的“虽处闹市，而无车马喧嚣”的境界，只有我的手和脑与课本交流。
三、坚持体育锻炼 身体是“学习”的本钱。没有一个好的身体，再大的能耐也无法发挥。因而，再繁忙的学习，也不可忽视放松锻炼。有的同学为了学习而忽视锻炼，身体越来越弱，学习越来越感到力不从心。这样怎么能提高学习效率呢？
四、学习要主动 只有积极主动地学习，才能感受到其中的乐趣，才能对学习越发有兴趣。有了兴趣，效率就会在不知不觉中得到提高。有的同学基础不好，学习过程中老是有不懂的问题，又羞于向人请教，结果是郁郁寡欢，心不在焉，从何谈起提高学习效率。这时，唯一的方法是，向人请教，不懂的地方一定要弄懂，一点一滴地积累，才能进步。如此，才能逐步地提高效率。
五、保持愉快的心情，和同学融洽相处 每天有个好心情，做事干净利落，学习积极投入，效率自然高。另一方面，把个人和集体结合起来，和同学保持互助关系，团结进取，也能提高学习效率。
六、注意整理 学习过程中，把各科课本、作业和资料有规律地放在一起。待用时，一看便知在哪。而有的学生查阅某本书时，东找西翻，不见踪影。时间就在忙碌而焦急的寻找中逝去。我认为，没有条理的学生不会学得很好。
评：学习效率的提高，很大程度上决定于学习之外的其他因素，这是因为人的体质、心境、状态等诸多因素与学习效率密切相关。
总结 学习必须讲究方法，而改进学习方法的本质目的，就是为了提高学习效率。学习效率的高低，是一个学生综合学习能力的体现。在学生时代，学习效率的高低主要对学习成绩产生影响。当一个人进入社会之后，还要在工作中不断学习新的知识和技能，这时候，一个人学习效率的高低则会影响他(或她)的工作成绩，继而影响他的事业和前途。可见，在中学阶段就养成好的学习习惯，拥有较高的学习效率，对人一生的发展都大有益处。可以这样认为，学习效率很高的人，必定是学习成绩好的学生(言外之意，学习成绩好未必学习效率高)。因此，对大部分学生而言，提高学习效率就是提高学习成绩的直接途径。提高学习效率并非一朝一夕之事，需要长期的探索和积累。前人的经验是可以借鉴的，但必须充分结合自己的特点。影响学习效率的因素，有学习之内的，但更多的因素在学习之外。首先要养成良好的学习习惯，合理利用时间，另外还要注意“专心、用心、恒心”等基本素质的培养，对于自身的优势、缺陷等更要有深刻的认识。总之，“世上无难事，只怕有心人。”
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