不定式用法1
动词不定式用法 (1)
regret to do sth.遗憾地做某事 regret doing sth.后悔作了某事 I regret to say that I can’t go with you. I regret telling him about it.
try to do sth. 尽力去做某事 try doing sth. 试一试，试试看 stop to do sth.停下来去做某事（表目的） stop doing sth.停止做某事（作宾语）
我们的任务是学习。
Our task is to study hard.
5.动词不定式作宾补
（1）常用结构有： advise sb to do something force sb to do something tell sb to do something…
（2）常跟省to的动词不定式作宾补的动词有： see, watch, notice, observe, look at, listen to, feel, make, let, have The teacher had us recite the text every day. Was he noticed to leave the room? 注：help后可跟省to或带to的不定式作宾补。
我正要出去，电话铃响了。 I was about to go out when the telephone rang.
3.This being my first experience, I stayed at the top and watched. 天气很好，我们决定出去野餐。
It being fine, we have made up our minds to go for a picnic.
动词不定式作为主语宾语和表语的句型
动词不定式作为主语宾语和表语的句型动词不定式作为主语、宾语和表语的句型动词不定式在句子中可以充当主语、宾语和表语，起到了连接句子成分的作用。
本文将分别从这三个方面来讨论动词不定式的用法。
一、动词不定式作为主语1. 动词不定式作为主语常放在句首，它的主要功能是表达动作、状态或目的。
例句1：To love and to be loved is the greatest happiness in life.翻译：爱与被爱是人生最大的幸福。
例句2：To learn a foreign language requires patience and perseverance.翻译：学习一门外语需要耐心和毅力。
二、动词不定式作为宾语1. 有些动词后面需要接动词不定式作为宾语，表示动作的意愿、决心、许可、能力等。
例句1：He wants to visit his grandparents this weekend.翻译：他想要在这个周末拜访他的祖父母。
例句2：They can't afford to buy a new car.翻译：他们买不起一辆新车。
2. 有些动词后面只能接动词不定式作为宾语，不能接动名词。
例句1：She decided to study abroad after graduation.翻译：她决定毕业后去国外留学。
例句2：I promised to help him with his homework.翻译：我答应帮他做作业。
三、动词不定式作为表语1. 动词不定式作为表语和系动词连用，表达主语的状态、特点或能力等。
例句1：Her dream is to become a famous singer.翻译：她的梦想是成为一名著名的歌手。
例句2：My goal is to learn Spanish fluently.翻译：我的目标是流利地学习西班牙语。
2. 有些系动词后面只能接动词不定式作为表语，不能接形容词。
动词不定式用法专讲(一)
动词不定式用法专讲(一)1.不定式是动词的一种非限定形式，通常前面带有小品词to，有时也可不带to，它可以和助动词或情态动词构成谓语：2.They will set up more evening schools next year. 他们明年要办更多的夜校。
We mustn't fall behind the others. 我们一定不要落在别人后面。
也可以作主语(a)、宾语(b)、表语(c)、定语(d)或是状语(e)：a．To scold her would not be just. 责备她是不公平的。
b．We are planning to build a reservoir here. 我们计划在这里修一座水库。
C．One of our main tasks now is to mechanize agriculture. 我们当前的主要任务之一是实现农业机械化。
d．Do you have anything to declare? 你有什么要申报吗?e. We have come to learn from you. 我们是来向你们学习的。
有时它还可以构成复合结构(类似汉语语法中的主谓结构)，作复合宾语等：He wants all of us to make rapid progress. 他希望我们大家都迅速进步。
不定式在句子里虽能担任种种成分，但它毕竟是一个动词，因此具有动词的许多特点。
它可以有自己的宾语(a)或状语(b)，来和它构成不定式短语：a．Would you like to tell me how you overcame the difficulties? 你可不可以告诉我你们怎样克服困难的？b．I prefer to go there by bike. 我宁愿骑车去。
还有下面种种形式：主动形式被动形式一般式 to do; to be done;完成式 to have done; to have been done;进行式 to be doing; ________完成进行式 to have been doing; _________另外，不定式虽然在语法上不能有主语，但由于表示的是动作，在意思上是可以有主语的，这个主语可以称为逻辑上的主语(the Logical Subject)，以区别于语法上的主语。
不定式1
11. Napoleon spoke so loudly as to ___ in front of his soldiers. A. hear B. be heard C. listen D. be listened to 12. Television and radio _____ to know what is going on all over the world. A. made it possible of us B. have made us possible C. have made it possible for us D. have made it be possible for us
6. Nothing can make the brave soldier ____ his country. A. turn against B. to turn against C. to turn to D. turn to 7. In the old days it was difficult for the poor a job. A. find B. to find C. look D. to look for
Write sentences.
e.g: it / good / read / that /. It is good to read that. 1. it / nice / see / her /. It is nice to see her. 2. it / bad / say / that /. It is bad to say that.
7.和某些形容词连用be sure/happy/ready/sorry/afraid/glad/excited /surprised to do sth. He is very happy to see his wife. I’m sorry to trouble you. 8.和疑问词who,what,when,where,which,how 构成不定式短语做宾语。 I don’t know how to use a computer. Can you tell me when to start?
新高考英语小题必练9非谓语动词一
高考主要考查非谓语动词的作用和形式。
在作用方面主要考查作定语、状语、补语时用不定式还是分词；作宾语时用不定式还是动名词；在形式方面主要考查用一般式还是完成式、主动式还是被动式、现在分词还是过去分词等。
一、考点1 动词不定式（2020·全国II 卷）They are easy (care) for and make great presents.【答案】to care【解析】sth. is easy to do ，表示某事容易……，且此处为动词不定式表示被动，故填to care 。
【点拨】(一)不定式的用法1.作主语(1)不定式短语作主语时，往往放在谓语之后，用it 作形式主语。
It is right to giveup smoking.戒烟是正确的。
(2)在“It is/was＋adj.＋for/of sb. to do sth.”结构中，若形容词侧重于评价人物的特性、特征，则构成不定式复合结构的介词应用of ，此时形容词常为kind, nice, foolish 等词，且sb.与形容词之间可构成逻辑上的系表关系；若形容词侧重于描写不定式动作的特征、特点，则构成不定式复合结构的介词应用for 。
It is generous of him to contribute so much.他捐献了这么多真是太慷慨了。
2.作宾语(1)下列动词只能用不定式作宾语，请牢记下面的口诀：(2)在某些动词如find, think, consider, feel, make, believe 后，常用it 作形式宾语，然后加宾语补足语，最后加不定式作真正的宾语。
We think it our duty to protect the environment.我们认为保护环境是我们的责任。
3.作表语不定式作表语多表示某一次具体的、特定的或有待实现的动作。
My dream is to enter Peking University.我的梦想是考入北京大学。
动词不定式用法
动词不定式用法动词不定式在中学英语中应用非常广泛，一方面在句中可起名词、形容词或副词的作用，同时也可在句中作主语、宾语、定语、状语和宾语补足语。
动词不定式的形式一般是to +动词原形，但to有时要省去。
而动词不定式在具体运用时用不用to，取决于谓语动词的用法。
现就以下几方面介绍如下。
一、不定式结构1. 带to的不定式结构能直接跟带to的不定式结构的动词主要有：want, ask, tell, hope, learn, try, decide, forget, remember, like, love, stop, go, come等。
如：I want to go to the movies with you.我想跟你一起去看电影。
Don’t forget to turn off the light before you leave.在你离开之前别忘了关灯。
注意：动词不定式的否定形式是在不定式前直接加not，即not to do sth.。
如：Dave told me not to wake up Kate.大卫告诉我别叫醒凯特。
2. 不带to的不定式结构以下几种情况使用不带to的动词不定式：（1）在固定词组had better之后。
注意：had better的否定形式是had better not do sth.。
如：You had better go home now.你最好现在回家。
It’s cold outside. You’d better not go out.外面很冷，你最好不要出去。
（2）在let, make, see, feel, watch, hear等感官或使役动词后，要跟不带to的动词不定式作宾语补足语。
如：I made them give me the money back.我迫使他们把钱还给我。
I didn’t see you come in.我没看见你进来。
（3）在引导疑问句的why not之后。
动词不定式做主语,宾语,及双宾语结构
动词不定式(the infinitive)用法梳理（1）定义：动词不定式是由“不定式符号to+动词原形”构成的一种非谓语动词结构。
结构：“to +动词原形”，即“to do”,其中to不是介词，而是动词不定式的符号，动词不定式没有人称和数的变化。
否定形式为：not / never + to do句法功能：用作主语○1多数情况用it作形式主语，把真正的主语——动词不定式置于句末，特别是不定式短语较长时。
. To learn English well is not easy. = It’s not easy to learn English well.1. I t is our duty to try our best to deal with these problems.2. The head teacher said it was necessary to talk with his mother.○2动词不定式作主语，谓语动词用第三人称单数形式。
To see is to believe.(眼见为实；百闻不如一见)【翻译】成为一个老师是我的梦想。
.○3疑问词+不定式短语作主语可置于句首。
How to learn English well is important.补充：用it作形式主语，把真正的主语不定式置于句后，常用于下列句式中。
如：It＋be＋名词＋to do It's our duty to take good care of the old.It takes sb + some time +to do How long did it take you to finish the workIt＋be＋形容词＋for sb＋to do 逻辑主语It is difficult for us to finish writing the composition a quarter of an hour.④It＋be＋形容词＋of sb＋to do “It is stupid of you to write down everything”，the teacher says. 注意：在③中，常用表示客观情况的形容词，如：difficult, easy, hard, important, impossible, necessary 等；在④中，常用careless, clever, good, foolish, honest, kind, lazy, nice, right, silly, stupid, wise等表示赞扬或批评的词，强调对人的评价。
动词不定式6种用法
动词不定式6种用法
动词不定式6种用法：
1、不定式的一般式：动词不定式一般式即to+动词原形。
所表示的动作是和谓语动词所表示的动作同时发生，但在多数情况下，是在谓语动词所表示的动作之后发生，不定时一般式与句子主语、宾语或for sb to do sth。
结构中的介词宾语有逻辑上的主谓关系。
2、不定式的完成式：即to have+过去分词。
动词不定式完成式所表示的动作发生在谓语动词所表示的动作之前，它的逻辑主语也是句子的主语或宾语。
3、不定式的进行式：to be+现在分词。
动词不定式进行式所表示的动作正在进行中，而且与谓语动词所表示的动作同时发生。
4、不定式的否定式：动词不定式的否定式是由not+动词不定式构成。
5、不定式的被动式：当不定时的被动式逻辑主语是不定式所表示的动作的承受者时，用不定时的被动形式，即to be done或to have been done。
6、to代替整个不定式：如果句子前面出现过同样的动词，为避免重复，句子后边的不定式应省略动词原形及其后续部分，只保留不定式的符号to。
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不定式练习
1. Tell him ______ the light.
A. to turn
B. not to turn on
C. to not turn
D. not to turn
2. It took us more than two hours _______ the dinner.
A. prepare
B. preparing
C. to prepare
D. to be prepared
3. We felt the earth _______.
A. move
B. moveing
C. to move
D. be moved
4. The students were made ______ the text ten times.
A. read
B. reading
C. to read
D. to be read
5. The chair looks rather hard _______, but in fact it is very comfortable.
A. to sit
B. to sit on
C. sitting
D. sit
6. Nobody knows __________next.
A. what to do
B. to do what
C. which to do
D. how to do
7. It is very important ______ us ________these words.
A. to, to remember
B. for, to remember
C. for, remember
D. for, remembering
8. _______ English well, one must have a lot practice.
A. For speaking
B. Speaking
C. To speak
D. Speak
9. I'm going to the library ______ the books.
A. return
B. borrow
C. to return
D. to lend
10. We went to town _________ some shopping.
A. doing
B. did
C. to make
D. to do
11. The funny story _______ me laugh. A. make B. making C. to make D. made
12. After the final exam, I think all the students want _________.
A. stop to have a rest
B. to stop having a rest
C. to stop to have a rest
D. stopping to have a rest
13. It is very kind ___ you to help me with my housework. It is hard __me to do all the work.
A. of, for
B. for, of
C. of, to
D. to, for
14. Many people think it very difficult _______ English.
A. to say
B. to learn
C. speak
D. for speaking
15. The teacher asked the students __________ her _______ the word again.
A. listen to; to read
B. to hear; say
C. to listen to; speak
D. to listen to; pronounce
16.Remember ______ the book here tomorrow.
A. bring
B. to bring
C. take
D. to take
17. ---Let's have a rest, shall we?
--- Not now. I don't want to stop _______ the letter yet.
A. write
B. to write
C. writing
D. and write
18. ---This physics problem is too difficult. Can you show me _______, Wang Lin?
--- Sure.
A. what to work it out
B. what to work out it
C. how to work it out
D. how to work out it
19.--- How can I improve my spoken English?
--- You have to practise ______ as much as you can.
A. speak
B. speaking
C. spoken
D. to speak
20. --- How about going hiking this weekend?
--- Sorry. I prefer _______ rather than _______.
A. to stay at home, go out
B. to go out, stay at home
C. staying at home, go out
D. going out, stay at home。