高中动词不定式的用法总结

动词不定式的用法总结

动词不定式由：“to +动词原形”构成，其否定形式是“not to do”。不定式可以带宾语或状语构成不定式短语，没有人称和数的变化，但有时态和语态的变化。不定式具有名词特征，可作主语、宾语、状语、表语和定语，但不能单独作谓语。

一.不定式的用法：

1.作主语

不定式短语作主语时，往往放在谓语动词后，用it 作形式主语。

To see is to believe.

It is possible to live an independent and fulfilling life.(P4)

2.作宾语

不定式短语作宾语时，如果还带有宾语补足语，往往把不定式宾语放在宾语补足语之后，而用it作形式宾语。常见的带不定式作宾语的动词，begin, continue, hope, decide, want, wish, try, learn, afford, agree, manage, refuse等等。

He wanted to go.

I find it interesting to study English.

I have learned to adapt to my disability.

3.作宾语补足语

(ask, tell, order, cause, allow, want, like , advise, force, permit, get等)

He asked me to do the work with him.

注意：在feel, hear, listen to, look at, notice, observe, see, watch, have, let, make 等词后的补足语中，不定式不带to，但是这些句子如果变成被动结构，就必须带to。

I often hear him sing the song.

He is often heard to sing the song.

She asked me to go out.

4.作定语

不定式作定语常放在所修饰的名词或代词的后面。

Let us give him something to eat.

He is looking for a room to live in.

The family village website gives ordinary young people with a disability the

chance to tell their personal stories.

5.作状语

表目的，原因，结果或条件。

①目的状语可用：in order to, so as to

I came here to see you.

Check your composition so as to avoid mistakes.

Next year he will be trained to be a teacher.

②结果状语可用：enough to, so…as to, too…to, only to…

He lifted a rock only to drop it on his own feet.

Some days I was too tired to get out of bed.

③原因状语可用：sb.+ adj.+to do

I am glad to help you.

She was proud to have recently represented her country.

④条件状语

To look at him, you would like him.

6.作表语

My job is to help patients.

His ambition is to become an actor.

7.作独立成分

To tell the truth, I don’t agree with you.

常见的词还有：to be frank(坦白地说)，to be exact（确切地说）, to begin with(首先)。

8.不定式与疑问词who, which, when, where, how ,what, 等连用在句中起名词作用，可充当主语，宾语和表语等

He didn’t know what to say.

How to solve the problem is very important.

So they don’t know how to make me well.

二.不带to的不定式

1）在使役动词feel, hear, listen to, make, let, have, see, look at, watch, notice, observe后不定式作宾补时省略to。

2）在would rather…than, rather than等结构的than之后用不带to的不定式。

I would rather go than stay.

He insisted on going back to his work rather than stay in hospital.

3）在以why引导的疑问句中不带to。

Why not do it right now?

4）不定式动词在介词but, except, besides后面时，如果这些介词之前有行为动词do的各种形式，那么，这些介词后的不定式不带to,否则要带to。

She could do nothing but cry.

I have no choice but to accept the fact.

5）不定式作表语时，在下列情况下可省略to：

①当含do的定语从句或含do的不定式修饰all, all that thing, the only(first, last) thing,且它们是该主句（该句）的主语时，作表语的不定式的to可省去。

All we do is (to) work.

All that thing I want to do now is (to) drink some water.

The only thing to do is (to) run away.

The first thing to do is (to) have breakfast.

②当主语时含do的主语从句时，作表语的不定式的to 可省。

What I want to do is (to) take a holiday.

What you do now is (to) bring me a cup of tea.

三．动词不定式的时态和语态

动词不定式有一般式to do、进行式to be doing和完成式having done，当动词不定式的逻辑主语是它所表示的动作的承受者时，动词不定式要用被动语态。如：

It is an honour for me to be invited to the party. 我很荣幸被邀请参加聚会。

动词不定式专项练习题

1.Tell him _______ the window.

A. to shut not

B. not to shut

C. to not shut

D. not shut

2. The boy wanted to ride his bicycle in the street, but his mother told him ______.

A. not to

B. not to do

C. not do it

D. do not to

3. They would not allow him ________ across the enemy line.

A. to risk going

B. risking to go

C. for risk to go

D. risk going

4. I saw him _______ out of the room.

A. go

B. had gone

C. has gone

D. goes

5. I’ve heard him _______ about you oft en.

A. spoke

B. speaks

C. speak

6. Though he had often made his little sister _____, today he was made _____by his little sister.

A. cry；to cry

B. crying；crying

C. cry；cry

D. to cry；cry

7. There isn’t any difference between the two. I really don’t know _________.

A. where to choose

B. which to choose

C. to choose what

D. to choose which

8. “ Have you decided when ________?” “ Yes, tomorrow morning.”

A. to leave

B. to be leaving

C. will you leave

D. are you leaving

9. She pretended _______ me when I passed by.

A. not to see

B. not seeing

C. to not see

D. having not seen

10. --- The light in the office is still on. --- Oh, I forgot _______.

A. turning it off

B. turn it off

C. to turn it off

D. having turned it off

11. She reached the top of the hill and stopped _______ on a big rock by the side of the path.

A. to have rested

B. resting

C. to rest

D. rest

12. Tom kept quiet about the accident ________ lose his job.

A. so not as to

B. so as not to

C. so as to not

D. not so as to

13. I prefer ____ rather than ______.

A. read；watch

B. to read；watch

C. reading；to watch

D. to read；to watch

14. The chair looks rather hard, but in fact it is very comfortable to _______.

A. sit

B. sit on

C. be sit

D. be sat on

15. I’m hungry. Get me something _________.

A. eat

B. to eat

C. eating

D. for eating

16. She did nothing _______ at the photo.

A. except look

B. but to look

C. except to look

D. but looking

17. The problem _______ at tomorrow’s meeting is a very difficult one.

A. being discussed

B. discussed

C. to be discussed

D. to discuss

18. This problem is said _____ three times.

A. to have been talked

B. to have discussed

C. having been discussed

D. to have been talked about

高考体验

1.（2011福建卷）The difference in thickness and weight from the earlier version makes the iPad 2 more comfortable ____.

A.held

B. holding

C.be held

D.to hold

2.（2011四川卷）Simon made a big bamboo box _______ the little sick bird till it could fly.

A. keep

B. kept

C. keeping

D. to keep

3.（2011天津卷）Passengers are permitted _____ only one piece of hand luggage onto the plane.

A.to carry

B. carrying

C. to be carried

D. being carried

4.（2011重庆卷）More TV programs, according to government to officials, will be produced _______people’s concern over food safety.

A.to raise

B.raising

C.to have raised

D. having raised

5.（2011北京卷）It’s important for the figures _________ regularly.

A. to be updated

B. to have been updated

C. to update

D. to have updated

6.【2012辽宁】This machine is very easy ______. Anybody can learn to use it in a few minutes.

A. operating

B. to be operating

C. operated

D. to operate

7.【2012江西】Having finished her project, she was invited by the school _____ to the new students.

A. speaking

B. having spoken

C. to speak

D. to have spoken

8.【2012湖南】We’ve had a good start, but next, more work needs ____ to achieve the final success.

A. being done

B. do

C. to be done

D. to do

.9.【2012山东】George returned after the war, only _______ that his wife had left him.

A. to be told

B. telling

C. being told

D. told

10.【2012陕西】If he takes on this work, he will have no choice but _____ an even greater challenge.

A. meets

B. meeting

C. meet

D. to meet

高中动词不定式用法讲解及练习电子教案

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不定式在句子中可以作主语.宾语.宾补.表语.定语和状语： 1.不定式作主语 To learn a foreign language is not easy. 学外语不容易。 Is it necessary to complete the design before National Day? (it 为形式主语) 有必要在国庆节之前完成这个设计吗？ 如果要说明不定式表示的动作是谁做的,可以在不定式前加for引起的短语,即for +名词/代词宾格+不定式。 It is good for us to take part in physical labour 参加体力劳动对我们有益 某些表示人的品行的形容词(如kind, good, nice, wrong, careless, wise, foolish, polite, clever, right, unwise, stupid, thoughtful, rude, silly, impolite等)作表语时不定式前常可用of引起的短语,既be+形容词+of+ 名词/代词的宾格+不定式. It is stupid of her to make such a mistake. 她真蠢,犯这样的错误 2. 不定式作宾语 I forgot to turn the oven on. 我忘记打开炉子。 有些及物动词用不定式作宾语，结构为动词+不定式。 afford aim agree arrange ask decide promise care choose demand desire determine expect hate hope fail help learn long mean manage offer plan pretend refuse intend bother tend 3.不定式作宾语补足语 不定式可以和名称或代词构成复合结构,作动词的宾语,不定式作宾语补足语We advised him to have a good rest 常带不定式作宾语补足语的动词有ask, tell, invite, force, advise,get,beg,allow,help,want,wish,like,order,expect,prefer,encourage,hate,warn,per mit等.但在make, let, have, see, hear, watch, notice, feel, observe, listen to, look at 等动词后的复合宾语中,不定式不带to. 在help后不定式可以带to,也可以不带to The boss made the workers work day and night.老板迫使工人们日夜干活 Will you help me (to) plant this tree, please? 请您帮我种这棵树好吗？ 4. 不定式作定语 He has a lot of questions to ask. 他有许多问题要问。 不定式作定语时,须放在被修饰的名词或代词之后.不定式常和它修饰的词有动宾关系.如果这个不定式是不及物的,它后面应有必要的介词 I use a pen to write with. 5. 不定式作表语 Disney’s greatest wish was to be a famous artist. 迪斯尼最大的愿望就是成为一个著名的艺术家。 6.不定式作状语 不定式作状语可以修饰动词,表示目的,结果,或原因 To catch the first bus, I have to get up early. (目的) She went aboard never to return. (结果) I was surprised to see him there.(原因)

动词不定式讲解

非谓语动词 一、英语句子需要遵循一个总原则：一个句子只能有一个动词。当一个句子必须要出现两个或两个以上的动词才能完整 表达一个意思时，为了不违法总原则，英语有四种处理方式： 1. 切分成两个或者多个句子 She is a girl. She likes English 2. 将一个谓语动词做主句，其余动词改成从句 She is the girl who likes singing. 3. 添加and, but, or, when, because, not only..but also, either..or 等连词变成并列结构 She got off the bus, but left her handbag on her seat. 4. 将其中一个动词变成非谓语动词形式 She got off the bus, leaving her handbag on her seat. 二、非谓语动词使用条件：一个句子当中，已经存在一个主句（谓语动词），又没有连词(and,but,or等)的情况下， 还有别的动词出现时，这时就要用非谓语动词 三、非谓语除了不能做谓语外，其他成分都可以做 不定式（to do） 四、非谓语动词三种形式分词现在分词（doing） 过去分词( done ) 动名词(doing) 五、非谓语动词解题技巧： 1. 判断是不是用非谓语动词（1.看有没有逗号 2.看有没有谓语 3.看有没有连词。要牢记英语中逗号不能连接两个 句子，一个句子如果没有连词只能有一个谓语） 2. 判断是主语和动词是主动还是被动关系 3. 判断时间, 确定非谓语动词和主句动词谁先发生，谁后发生 不定式的用法 不定式构成一般式完成式进行式 主动关系to do to have done to be doing 被动关系to be done to have been done 不定式动词和谓语动词发生的时间关系不定式的动作和谓语动作同时发生， 或发生谓语动作之后 he seems to know a lot 不定式的动作发生在谓语动 作之前 I regretted to have told you a lie. 不定式的动作和谓语 动作同时发生 I’m glad to be talking with you 不定式否定形式在to前加not. 即not to..... 不定式充当的成分主语，宾语，表语，定语，状语，宾补

(完整word版)动词不定式的用法讲解及练习题北京四中

北京四中 撰稿老师：黄浩编审老师：蔡正礼责任编辑：丁华 动词不定式的用法讲解及练习题 不定式既具有动词的一些特征，又具有名词，形容词和副词的句法功能 否定式：not +不定式 不定式的时态 一般说来，不定式一般式表示的动作有时与限定动词表示的动作同时发生，也有时发生在限定动词表示的动作之后。如： Who heard him say that? He seems to know this. I hope to see you again. 不定式进行式表示动作正在进行，通常与限定动词表示的动作同时发生，如： They are said to be building another bridge across the river. I happened to be going that way too. 不定式完成式表示的动作发生在限定动词表示的动作之前，如： I am sorry to have given you so much trouble. I am glad to have seen your mother. 不定式的句法功能： （1）作主语 To talk with him is a great pleasure. 不定式短语作主语时，为了保持句子的平衡，往往以it作形式主语，而把不定式短语置于谓语动词之后，如： It's nice to hear your voice. （2）作表语

Her wish is to become an artist. （3）作宾语 常用于及物动词: want , hope, wish, like, need, hate, offer, prefer, begin, start, attempt, decide, determine, expect, promise, pretend, refuse ,afford, manage, help等之后，如： You should continue to learn as long as you live. 注1：如果作宾语的不定式又有自己的补语，则须用先行词it 作形式宾语，而将真正的宾语不定式后置，如： They found it impossible to get everything ready in time. 注2：不定式一般不能作介词的宾语，只有在极少数介词如:but, except等后边才行。此时不定式可以带to或不带to,如： In very cold winter weather a cold-blooded animal has no choice but to lie down and sleep. There was nothing left to do but clean the windows.(前边有do, to 省略) 但“疑问词+不定式”结构可以作介词的宾语，如： I have no idea about what to do next. （4）作宾语补足语 通常用于及物动词或动词短语：want ,wish, ask, order, beg, tell, permit, know, help, advise, persuade, allow, prepare, cause, force, require, call on, wait for 等之后，如： The teacher asked the students to hand in their homework. （5）作定语 不定式作定语时，须放在被它修饰的名词或代词之后。被修饰的名词或代词往往是不定式的逻辑宾语。 I have a lot of work to do. 当作定语的不定式所修饰的名词或代词是不定式动作的承受者时，不定式既可用主动语态，又可用被动语态，但其含义有所不同。所以如果修饰名词的不定式的动作是主语作的, 不定式用主动。

(完整版)省略to的动词不定式用法归纳

省略to的动词不定式用法归纳 一、使役动词与to的省略 当不定式用于let, make, have等使役动词后作宾语补足语，不定式必须省略to。如： Let me have another cup of tea.给我再来一杯茶。 She had him dig away the snow.她让他把雪挖走。 They made him tell them everything.他们强迫他把一切全告诉他们。 但是，当使役动词用于被动语态时，其后的不定式则必须要带to。如： 他被迫一天工作20小时。 误：He was made work twenty hours a day. 正：He was made to work twenty hours a day. 注意，表示使役意义的let和have很少用于被动语态。 另外注意，force, oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带to。如： They forced her to sign the paper.他们强迫她在文件上签字。 The law obliged parents to send their children to school.法律要求父母送子女上学。 考例： 1.The teacher forbade ________ our seats. https://www.wendangku.net/doc/f514676622.html, to leave https://www.wendangku.net/doc/f514676622.html, leaving C.to leave D.to leaving 2.Mary had her friend ________ the best one. A.choose B.chosen C.chose D.to choose 3.The girl was ma de _________ she didn’t love at all. A.marry a man B.to marry a man C.to marry with a man D.married with a man 二、感觉动词与to的省略 当不定式用于表示感觉的动词feel, hear, notice, observe, see, watch, look at, listen to等作宾语补足语时，不定式必须省略to。如： We all felt the house shake.我们都感觉这房子在震动。 I heard him go down the stairs.我听见他下楼了。 Did you notice her leave the house?她离开屋子你注意到了吗? I watched her get into the car.我看着她上了车。 但是，当feel后用作宾语补足语的不定式为to be时，则不能省略to。如：They all felt the plan to be unwise.他们都认为这个计划不明智。 注意，当这些动词变为被动语态时，不定式前的to不能省略。如： They were heard to break a glass in the next door.听见他们在隔壁打破了一个

高中动词不定式用法讲解及练习

Grammar Presentation---动词不定式 一、不定式的句法功能 ●不定式作主语 ?To learn a foreign language is not easy.学习外语不是一件容易的事。 ◎不定式短语作主语时，常用it作形式主语来代替它的位置，而将真正的主语（不定式短语）移到谓语之后 ?It’s a great honor to be invited to Mary’s birthday party.很荣幸被邀请参加玛丽的生日聚会。 ●不定式作宾语 ◎作动词宾语 ◇下列动词常接不定式作宾语，如：agree, arrange, ask, beg, choose, dare, decide, demand,expect, fail, fear, hope, manage, offer, plan, prepare, pretend, promise, ?They hope to find new resources for mankind.他们希望为人类找到新资源。 ◇如果不定式作宾语且有自己的补语，常用“it”作形式宾语，而把真正的宾语放在后面。 下列动词常用it作形式宾语，如：believe, consider, feel, find, know, make ?I know it impossible to finish so much homework in one day. 我知道在一天中完成这么多的作业是不可能的。 ●不定式作表语 ◎不定式作表语时，一般紧跟在系动词后，说明主语的内容 ?The first step is to check the victim’s breathing. 第一步是检查受害人的呼吸。 ●不定式作补语 ?I’d like the problem to be discussed at the next meeting.我希望这个问题在下一次会上讨论。 ●不定式作定语 ?The students have a lot of homework to do every day.学生们每天都有很多家庭作业要做。 ●不定式作状语 不定式可以作原因状语、结果状语、目的状语以及方式状语 不定式在下列句式中作目的状语：so as to do, in order to do ?In order to ensure your hair looks its best, pay attention to what you eat. 为了保证你的头发是最佳状态，请注意你的饮食。 二：不定式考点归纳： 考点1：不定式的时态和语态： 1.---Is Bob still performing? ---I’m afraid not. He is said ____the stage already as he has become an official. A. to have left B. to leave C. to have been left D. to be left 2.The news reporters hurried to the airport, only ____ the film stars had left. A. to tell B. to be told C. telling D. told 1．A. 根据句子的意思“据说他已经离开了舞台”，要用不定式的完成式的主动形式。2．B. 用动词的不定式的被动形式表示结果状语。 考点2：不定式的功能：不定式具有名词的特征，可以作主语或宾语（例5），具有形容词的特征，可以作表语、定语或补足语（例4）；具有副词的特征，在句子中可以作状语（例3）。

动词不定式用法讲解

动词不定式用法小结 动词不定式用法小结 动词不定式是一种非谓语动词形式，其结构为“to＋动词原形”，其中to不是介词，而是动词不定式的符号，称为小品词，动词不定式没有人称和数的变化。动词不定式和其后面的名词等构成不定式短语，在句子中可以用作主语、表语、宾语、补足语、定语、状语等。 一. 作主语例如： To be a doctor is hard. 做医生很难。 To learn English well is not easy. 学好英语不容易。 动词不定式（短语）作主语时，为了避免句子的头重脚轻，可以用“it”作形式主语，而把真正的主语－－动词不定式（短语）放在句子的后部。例如上面的句子可以表示为： It is hard to be a doctor. It is not easy to learn English well. 再如： It’s important to plant trees in spring. 如果动词不定式的动作是谁做的，可以在动词不定式前面加一个由介词for 引导的短语，称为不定式的复合结构。例： It’s good for us to read English aloud in the morning. 对我们来说每天早晨大声读英语是很有益的。 It is important for students to use English every day. 对学生来说每天使用英语是很重要的。 二. 作表语： 动词不定式（短语）作表语常用于系词be的后面。例： His work is to drive a car. 他的工作是开车。 My job is to feed animals. 我的工作是饲养动物。 Her ambition is to be a doctor. 她的理想是当医生。 三. 作宾语 动词不定式（短语）可以放在一些动词后面用作宾语，能以动词不定式作宾语的动词有：begin,start, want, forget, remember, show, learn, like, hate, love, ask等。例： I want to tell you a story. 我想给你讲个故事。 They begin to work at eight every morning. 他们每天早晨8点开始工作。 Don’t forget to lock the door. 别忘了锁门。 Would you like to go and have a picnic with us tomorrow? 明天和我们一起去野餐好吗？

动词不定式(基础讲解)

动词不定式 【概念引入】 1. 动词不定式名言： （1）动词不定式作表语 To lose is to learn. 失败就是学习。 （2）动词不定式作主语 It is better to give than to take. 给予比接受更好。 （3）不定式作宾语 Expect to be treated as you have treated others. 你怎样待别人，就指望别人怎样待你。 （4）不定式作宾补 Adversity causes some men to break，others to break records. 逆境使一些人崩溃，也使一些人破记录。 （5）不定式作定语 There is a time to talk and a time to act. 该说的时候说，该做的时候做。 （6）不定式作目的状语 To find the exact answer，one must first ask the exact question. 要找到确切的答案，首先必须提出确切的问题。 2. 动词不定式定义： 动词不定式是一种非谓语形式（不能作谓语），基本形式是to do形式(to是不定式符号的标志，无意义，可以不翻译) 肯定式：to + 动词原形 否定式：not to + 动词原形 【用法讲解】 1.动词不定式的特征 动词不定动式是一种非谓语动词形式，它没有人称和数的变化，在句子中不能作谓语，但可以作除谓语之外的其它任何句子成分（主语、表语、宾语、宾语补足语、定语和状语）；动词不定式具有名词、形容词和副词的特征，同时还保持动词的某些特点，既可以有自己的宾语和状语，动词不定式和它的宾语和状语构成不定式短语。 2. 动词不定式在句子中的作用 动词不定式是由to+动词原形构成，在句中起名词，形容词和副词的作用，可以担任除谓语以外的其它任何成分。 （1）动词不定式作主语。例如： To master a language is not an easy thing. 掌握一门语言不是一件容易的事情。 To teach English is my favorite. 教英语是我的爱好。 It's my pleasure to help you. 很乐意帮助你。 （2）动词不定式作宾语。 某些及物动词可以用动词不定式作宾语，这些动词有decide, begin, help, want, wish, like, forget, learn, ask等。例如： I like to help others if I can. 如果有可能的话，我喜欢帮助别人。 I want to buy a new car when I have enough money. 我有钱时想买一辆新车。

动词不定式练习题及讲解说课讲解

动词不定式练习题及 讲解

动词不定式用法要点讲解 一、作主语 动词不定式作主语时，句子的谓语动词常用单数，其位置有以下两种： (1)把不定式置于句首。如： To get there by bike will take us half an hour. (2)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： ①It＋be＋名词＋to do It's our duty to take good care of the old. ②It takes sb+some time+to do How long did it take you to finish the work? ③It＋be＋形容词＋for sb＋to do 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. ⑤It seems(appears)＋形容词＋to do It seemed impossible to save money. 二、作宾语 ⒈不定式作宾语 ①以下动词后，只能跟不定式作宾语。如： agree,ask,aim,arrange,choose,decide,demand,expect,fail ,help,hope,lean,long manage,offer,plan,prepare,pretend,promise,refuse,wish等，这些词大部分可接 th at引导的从句。如： When our visit to the farm was over, we expected to start back on foot. When our visit to the farm was over, we expected that we would start back on foot. ②当复合宾语中的宾语是不定式时，先用形式宾语it代替不定式，把不定式置于补语之后，即：主语＋动词＋it＋补语＋to do句式。 He feels it his duty to help the poor. ③介词but,except,besides+to do(do) 在这种句型中，如介词前有动词do，后面应接不带to的不定式；如无do，则接to 不定式，即带do不带to，带to不带do。如： The enemy soldiers had no choice but to give in. ⒉部分动词后面，既可接动词不定式，也可接动名词作宾语，意义不变。如：begin,continue,start,hate,like,love,need,require,want等。 在need,require,want后接-ing形式，表示被动意义，也可接不定式，但要用被动形式，如：Your handwriting needs improving(tobe improved). hate,love,like接不定式表示特定的未来事件，接动名词表示目前正在进行的活动或一般的行为。 在下列情况下，一般要用不定式： ①hate,like,love前有would(should)时，如：I'd like to have a cup of coffee. ②当谓语动词begin,continue,start等是进行式时，如：Thestudents are starting to work on the difficult maths problem. ③begin,continue,start与know,understand等状态动词连用时，如：I soon began to understand what was happening. 3．advise,allow,encourage,forbid,permit等动词后接动名词作宾语，或带不定式作宾语补足语。如： Our teachers don't permit our/us swimming in the lake. Our teachers don't permit us to swim in the lake. 4．部分动词后接不定式或动名词时，意义差别较大，应根据句子语境选择使用。 ①forget,remember,regret后接不定式，表示现在或未来的动作，接动名词表示动作已经发生。如： We regret to tell you that all of you are not invited to attend the meeting. They regretted ordering these books from abroad. ②mean to do 打算做某事 ;mean doing 意味着…… ③try to do 设法尽力做某事; try doing 试着做某事 ④stop to do 停下一件事去做另一件事（不定式作目的状语）; stop doing 停止做某事 ⑤can't help doing 禁不住…; can’t to do不能帮助干…… ⑥go on to do 做不同的事或不同内容的事; doing 继续不停地做某事，指同一动作的继续 ⑦leave off to do 离开某地去干什么（目的状语）; leave doing停下某事 三、做表语 To be kind to the enemy is to be cruel to the people. 四、作定语 不定式在句中作定语，置于被修饰的名词或代词之后。如： Have you anything to be taken to your sister? 收集于网络，如有侵权请联系管理员删除