她看电影去了哪个词是不定式作状语

㈠ 如何区分不定式作定语还是状语

1. 如果不定式与前面的名词构成动宾关系，前面的名词是后面动词的动作受事者，那么后面的动词不定式通常是定语。
举例： a book to read, 要读的一本书， a school to go to 要去的学校，a pen to write with 可以写字的笔。
2. 如果是动宾结构（及物动词加宾语）加动词不定式，表示动作的最终目的，即目的状语。eat the breakfast to gain energy,吃早饭是为了补充体力。
3. 不及物动词加介词后，用动词不定式作目的状语， 如 go to school（这里的to是介词，因为go是不及物动词） to learn knowledge 上学去学知识。

㈡ 动词不定式作状语有哪些规则

不定式短语作状语，表示目的、原因、结果等。位置一般在句尾或句首。

（1）目的状语

常用结构为to do ， only to do（仅仅为了）， in order to do，so as to do，so（such）… as to…（如此…以便…）。例如：

He ran so fast as to catch the first bus.他飞快地跑以便赶上第一班车。

I come here only to say good-bye to you.我来仅仅是向你告别。

（2）作结果状语，可以表示没有预料到的或事与愿违的结果，不定式要放在句子后面。

I awoke to find my truck gone. 我醒来发现箱子不见了。

He searched the room only to find nothing. 他搜索了房间，没发现什么。

（3）表原因

I'm glad to see you. 见到你很高兴。

She wept to see the sight. 她一看到这情形就哭了。

（4）表示理由和条件

He must be a fool to say so.

You will do well to speak more carefully.

(2)她看电影去了哪个词是不定式作状语扩展阅读：

一、动词不定式

在英语语法中，动词不定式是指动词中的一种不带词形变化从而不指示人称、数量、时态的一种形式。它之所以被称做不定式，是因为动词不被限定，或者说不被词形变化所局限。不定式属于非谓语动词形式。

然而在一些语言里（例如葡萄牙语），存在受时态、人称和数量影响的不定式形态。亦有些语言完全没有不定式，例如阿拉伯语、保加利亚语和现代希腊语。

在英语学习的课程中，动词不定式的一般现在时被称作“词典用词”，因为它一般被用作词典中该动词的词头。

动词不定式可以作以上各种成分，但它毕竟是动词，所以有动词的属性。

动词不定式及其短语还可以有自己的宾语、状语，虽然动词不定式在语法上没有表面上的直接主语，但它表达的意义是动作，这一动作一定由使动者(动词的使用者)发出。这一使动者(动词的使用者)我们称之为逻辑主语。

二、形式

1) 现在式：一般现在时表示的动词，有时与谓语动词表示的动作同时发生，有时发生在谓语动词的动作之后。一般为：动词+ to do something

He seems to know this.

I hope to see you again. = I hope that I'll see you again.我希望再见到你。

2) 完成式：表示的动作发生在谓语动词表示的动作之前。

I'm sorry to have given you so much trouble.

He seems to have caught a cold.

3)进行式：表示动作正在进行，与谓语动词表示的动作同时发生。

He seems to be eating something.

4)完成进行式：

She is known to have been wreaking on the problem for many years.

一般在表示情绪的动词后加to do也表将来

㈢ 不定式作结果状语 怎么用

不定式

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。不定式没有人称和数的变化，有时态和语态的变化。不定式可以作主语、宾语、状语、表语和定语。不定式复合结构为“介词＋sb.(sth.)＋to do”，其中“介词＋sb.(sth.)”表明不定式动作的发出者，为逻辑主语。

1. 不定式的用法：

(1)作主语。不定式短语作主语时，为了使句子结构平衡，常将不定式短语放在谓语之后，而用it作形式主语。

It is our ty to give as much help as possible. 提供尽可能多的帮助是我们的职责。

但不定式作表语时，前面有不定式作主语，不定式不可位于句末。

To see is to believe. 眼见为实。

(2)作宾语。常见的只跟不定式作宾语的动词(组)有want, wish, hope, expect, would like (love),care, choose, learn, plan, prepare, mean, agree, promise, offer, refuse, ask, beg, decide, make up one’s mind, be determined, manage, try, can’t afford, fail, pretend等。

①He promised to come today, but he hasn’t turned up yet .

他许诺说今天来，但他到现在还没有出现。

②No one likes to be laughed at. 没人喜欢被嘲笑。

有形容词、分词、名词作宾补，不定式作宾语时要将不定式放于句末，用it 来作形式宾语。如：

You may find it necessary to finish the work ahead of time.

你会发现有必要提前完成工作。

(3)作宾语补足语。常见的跟不定式作宾补的动词有ask, order, advise, like, want, teach, force, forbid, beg, allow, expect, cause, invite, tell, know, call on, depend on, wait for等。

The children asked their parents to take them to the park.。

孩子们要求父母带他们去公园。

感官动词后，如 see, watch, look at, observe, notice, hear, listen to, feel及部分表示“使”、“让”的使役动词，如have, make, let 跟不定式作宾补时要省略不定式符号to。但在被动语态中to 要加上。

Though he had often made his sister cry, today he was made to cry by his sister.

尽管他总是弄哭他妹妹，今天却被妹妹弄哭了。

help后的不定式作宾补(包括作宾语)to 可有可无。

(4)作表语。

My job is to help the patient. 我的工作是帮助病人。

要注意不定式作表语与“be to do”结构的不同：

不定式作表语说明主语的性质或内容，而“be to do”结构表示安排要做的事情。

①My next plan is to draw a picture for the house.(不定式作表语)

我下一个计划是为这座房子画一幅图。

②We are to meet at the school gate at six .(be to do表示安排)

我们约好六点在学校门口见面。

(5)作定语

①表示将来的动作。

The meeting to be held next week will be of great importance.。

下周将要举行的会议极为重要。

② 用在固定搭配中。

I will go to Shanghai tomorrow. Have you anything to be sent to your son?

我明天要去上海，你有什么东西要带给你儿子吗？

(send的动作发出者并非you,因此不定式用被动语态)

作定语的不定式如果与其前面所修饰的名词有逻辑上的动宾关系，然而动词又为不及物动词，动词后要加介词或副词，使其成为及物动词词组。

Will you find me a pen to write with? 你能给我找一支写字的笔吗?

不定式所修饰的词是time, place, way时，不定式后面的介词习惯上要省去。

Do you think it is the best way to deal with such a problem?

你认为这是解决问题的最好方式吗？

(6) 状语。表示目的、原因、结果。

①They ran over to welcome the guests. 他们跑过去欢迎客人。(目的)

②The child is too young to go to school. 孩子太小不能去上学。(结果)

③We were excited to hear the news. 听到这个消息我们激动了。(原因)

不定式的时态与语态

不定式有一般式、进行式、完成式形式，既有主动语态又有被动语态两种语态。形成to do, to be done, to be doing，to have done, to have been done形式。

(1)不定式的一般式所表示的动作通常与谓语的动作(状态)同时(或几乎同时) 发生，或是在它之后发生。

I’m sorry to tell you that you are wrong this time.

我很遗憾告诉你这次是你错了。

(2)如果谓语表示的动作(情况)发生时，不定式表示的动作正在进行， 这时不定式就要用进行式。

I am very glad to be talking with you. 我很高兴与你交谈。

(3)如果不定式的动作发生在谓语动词之前，就要用完成式。

I’m sorry to have kept you waiting for such a long time. 对不起，让你久等了。

当不定式逻辑上的主语是这个不定式所表示的动作的承受者时， 不定式要用被动语态。

He asked to be sent to work in the countryside. 他要求去农村工作。

动名词

动名词由“动词＋ing”构成；具有动词和名词的性质，可以有宾语或状语； 可作主语、宾语、表语和定语。动名词有时态和语态的变化。

㈣ 用动词不定式做句子的状语,请举例。

I come here to get my umbrella.
To get good grades, Tom studies hard.

㈤ 如何区分不定式作后置定语与作状语请看这两句.(高手请进)

后置定语修饰前面的名词,如果表达目的的意思就是目的状语,表达结果的意思,就是结果状语

㈥ 为什么不用不定式作状语而是用了现在分词原因状语的话这两种词都可以吧。谢老师

你是不是人教材必修5的英语书没有吃透哦！这是一种主动关系，所以才选择c，把句子还原就是because she does not want（过去式的话就事ddid not）.现在把第一个单词，主语，主动词去掉，保留主杆，又因为是主动关系，这一点从助动词就可以得出。又因为被动用ed，主动用ing，好像是人教必修4课本的非谓语动词里知识，所以选择c，何来有不定试呢！学习语言，课本教材加牛津，或者朗文是必不可少的，很多东西课本没有得出什么结论，而是隐含在其！！达到深刻体会与活学活用的地步，就像我上面分析的，可以把句子还原，再针对性的作高级变换！！！

㈦ 分词作状语和不定式作状语

1. 目的，结果与伴随（或连续性）
动词不定式可以表示目的作状语（或in order+不定式；so as+不定式；just+不定式等），也可以做结果状语，而分词则不能。
现在分词可以做伴随状语（或表示连续性动作。），不定式却无此功能。
1.1目的状语
例：（2005.福建卷）—Can the project be finished as planned?
—Sure,______ it completed in time ,we’ll work two more hours a day.
A. having got B. to get C. getting D. get
答案B。此句表示我们每天将多工作两个小时，目的是为了及时完成那项工程。分词不表示目的，故用不定式。
例：（2005.辽宁卷）—All these gifts must be mailed immediately______ in time for Christmas.
A. in order to have received B. in order to receive
C. so as to be received D. so as to be receiving
答案C。所有这些礼物必须马上被送走，目的是为了及时被收到过圣诞节。此题设计了动词不定式的四种形式。用一般被动式表示未来的被动动作。
例：（2005.上海卷）—It was unbelievable that the fans waited outside the gym for three hours just _____ a look at the sports stars.
A. had B. having C. to have D. have
答案C。从“unbelievable”可知球迷在体育馆外等了三小时，只是为了看看运动明星，故不定式做目的状语。
1.2 结果状语（only+不定式表示令人失望的结果）
例：（2005.广东卷）—He hurried to the station only ______ that the train had left.
A. to find B. finding C. found D. to have found
答案A。句意为：他匆忙到达车站，未能赶上火车而感到失望。所以选不定式的一般式。
1.3 伴随状语
例 1.（2005.重庆卷）Daddy didn’t mind what we were doing, as long as we were together,_____ fun.
A. had B. have C. to have D. having
答案D。根据句意可知，取乐是“只要我们在一起”所伴随的动作。故用分词。
例 2. (2006湖北卷) Don’t sit there _________ nothing. Come and help me with this table.
A. do B. to do C. doing D. and doing
答案C。此句中doing作sit的伴随状语。
1.4连续动作
例：（2005.全国卷）—“You can’t catch me !” — Jannet shouted,______ away.
A. run B. running C. to run D. ran
答案B。根据题意知Jannet喊了“你抓不住我！”后跑了，喊、跑的动作连续发生。所以选分词。
2. 时间，原因，让步和条件
分词可以作时间状语；原因状语；让步状语；条件状语。
2.1时间状语
例：（2005.全国卷）—The storm left,_____ a lot of damage to this area.
A. caused B. to have caused C. to cause D. having caused
答案D。根据题意得知，暴风雨对此地区造成大量的破坏后离开。造成破坏发生在离开之前，而且暴风雨造成破坏，含有主动意义，所以选分词完成式，作时间状语。
例：（2005.上海）______ into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns.
A. Put B. Putting C. Having put D. Being put
答案A。根据题意可知热线在2000年4月被开通使用，热线是动作的承受者，故用过去分词短语作时间状语相当（=When the hotline was put into use in April 2000,）。
例：______ a bear coming , he fled.
A. Having seen B. Seen C. To see D. Seeing
答案D。用现在分词一般式，作状语，相当（=When he saw a bear coming,）。
例：（2005.湖南卷）______ in a white uniform, he looks more like a cook than a doctor.
A. Dressed B. To dress C. Dressing D. Having dressed
答案A。此句中Dressed in a white uniform相当 ( = When he is dressed in…）的时间状语从句。用过去分词表状态。
2.2原因或理由
例：_______ my work ,I have nothing to do .
A. To have finished B. To finish
C. Having finished D. Finishing
答案C。此句分词完成式表示原因相当（=As I have finished …）。
2.3让步状语
例：______ what you say ,I can’t still believe it.
A. To admit B. Admitted C. Admitting D. Being admitted
答案C。Admitting what you say = (Though I can admit what you say)
2.4条件状语
例：______ you will find the house you want.
A. To turn to left B. Turning to left
C. Turn to left D. To have turned to left
答案B。此句中分词短语作条件状语相当（=If you turn to left…）
3． 独立句
动词不定式独立成分是用来强调自己所说内容的确切性，而分词独立片语则表示说话者所持的态度及看法。
3.1不定式独立式
例：______ , I don’t know.
A. To tell the truth B. To have told the truth
C. Being told the truth D. Having told the truth
答案A。此句相当（=In order to tell the truth that I don’t know I…）。
3.2分词独立片语
例：（2005.全国卷）______ , the more expensive the camera, the better its quality.
A. General speaking B. Speaking general
C. Generally speaking D. Speaking generally
答案C。此句中用副词修饰分词，意为“一般的说来”，相当（=If I speak generally…）。
通过对动词不定式与分词作状语的功能辨析，要高度地重视目的、结果、时间、伴随（或连续）、条件、让步、原因（或理由）、及独立等状语的特点，弄清二者之间作状语的差异。

㈧ 动词不定式作状语

动词不定式
英语语法--动词不定式

动词不定式

7.1 不定式作宾语

1) 动词+ 不定式

afford aim appear agree arrange ask be decide bother care choose come dare demand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse seem tend wait wish undertake

举例：

The driver failed to see the other car in time.

司机没能及时看见另一辆车。

I happen to know the answer to your question.

我碰巧知道你那道问题的答案。

2）动词+不定式 ； 动词+宾语+不定式

ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish…

I like to keep everything tidy. 我喜欢每件东西都保持整洁。

I like you to keep everything tidy. 我喜欢你年使每件东西都保持整洁。

I want to speak to Tom. 我想和汤姆谈话。

I want you to speak to Tom. 我想让你和汤姆谈话。

3） 动词+疑问词+ to

decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell

Please show us how to do that. 请演示给我们如何去做。

There are so many kinds of tape-recorders on sale that I can’t make up my mind which to buy.有这么多的录音机，我都拿不定主意买哪一种。

注意:疑问词带不定式在句中作成分时，谓语动词用单数。

The question is how to put it into practice.

问题是怎样把它付诸实施。

7.1 不定式作宾语

1) 动词+ 不定式

afford aim appear agree arrange ask be decide bother care choose come dare demand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse seem tend wait wish undertake

举例：

The driver failed to see the other car in time.

司机没能及时看见另一辆车。

I happen to know the answer to your question.

我碰巧知道你那道问题的答案。

2）动词+不定式 ； 动词+宾语+不定式

ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish…

I like to keep everything tidy. 我喜欢每件东西都保持整洁。

I like you to keep everything tidy. 我喜欢你年使每件东西都保持整洁。

I want to speak to Tom. 我想和汤姆谈话。

I want you to speak to Tom. 我想让你和汤姆谈话。

3） 动词+疑问词+ to

decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell

Please show us how to do that. 请演示给我们如何去做。

There are so many kinds of tape-recorders on sale that I can’t make up my mind which to buy.有这么多的录音机，我都拿不定主意买哪一种。

注意:疑问词带不定式在句中作成分时，谓语动词用单数。

The question is how to put it into practice.

问题是怎样把它付诸实施。

7.2 不定式作补语

1) 动词+宾语+不定式(to do)

advise allow appoint believe cause challenge command compel consider declare drive enable encourage find forbid force guess hire imagine impel ince inform instruct invite judge know like order permit persuade remind report request require select send state suppose tell think train trust understand urge warn

例句：

a. Father will not allow us to play on the street.

父亲不让我们在街上玩耍。

b. We believe him to be guilty.

我们相信他是有罪的。

Find 的特殊用法：

Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。find后也可带一个从句。此类动词还有get，have。

I found him lying on the ground.

I found it important to learn.

I found that to learn English is important.

典型例题:

The next morning she found the man ___ in bed，dead.

A. lying B. lie C. lay D. laying

答案：A.find的宾语后面，用分词或分词短语，起宾语补足语作用。现在分词表达主动，也表达正在进行，过去分词表达被动。

2) to + be 的不定式结构，作补语的动词。

Acknowledge, believe, consider, think, declare(声称), discover, fancy(设想), feel find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand

We consider Tom to be one of the best students in our class.

我们认为汤姆是班上最好的学生之一。

典型例题

Charles Babbage is generally considered ___ the first computer.

A. to invent B. inventing C. to have invented D. having invented

答案：A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实，不定式后用原形即可。而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。

3) to be +形容词

Seem, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean…

The book is believed to be uninteresting.

人们认为这本书没什么意思。

4) there be+不定式

believe, expect, intend, like, love, mean, prefer, want, wish, undrstand

We didn’t expect there to be so many people there.我们没料到会有那么多人在哪里。

注意 ： 有些动词需用as 短语做补语，如regard, think believe, take, consider.

We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。

Mary took him as her father . 玛丽把他当作自己的父亲。

7.3 不定式主语

1） It’s easy (for me) to do that.我做这事太容易了

easy, difficult, hard, important, possible, impossible, comfortable, necessary, better;

the first, the next, the last, the best, too much, too little, not enough

It’s so nice to hear your voice.

听到你的声音真高兴。

It’s necessary for you to lock the car when you do not use it.

当你不用车的时候，锁车是有必要的。

2) It’s very kind of you to help us. 他帮助我们，他真好。

Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的)

例句:

It was silly of us to believe him. 我们真愚蠢，竟然相信了他。

It seemed selfish of him not to give them anything. 他不给他们任何东西，这显得太自私了。

注意：1) 其他系动词如，look，appear等也可用于此句型

2) 不定式作为句子成分时，动词用单数形式。

3) 当不定式作主语的句子中又有一个不定式作表语时，不能用It is… to…的句型

(对)To see is to believe. 百闻不如一见。

(错)It is to believe to see.

7.4 It’s for sb.和 It’s of sb.

1）for sb. 常用于表示事物的特征特点，表示客观形式的形容词，如easy, hard, difficult, interesting, impossible等：

It’s very hard for him to study two languages. 对他来说学两门外语是很难的。

2）of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right。

It’s very nice of you to help me. 你来帮助我，你真是太好了。

for 与of 的辨别方法：

用介词后面的代词作主语，用介词前边的形容词作表语，造个句子。如果道理上通顺用of，不通则用for。如：

You are nice. (通顺，所以应用of)。

He is hard. (人是困难的，不通，因此应用for。)

7.5 不定式作表语

不定式可放在be动词后面，形成表语。例如：

My work is to clean the room every day.

His dream is to be a doctor.

7.6 不定式作定语

不定式做定语通常要放在被修饰的词后。例如：

I have a lot of work to do.

So he made some candles to give light.

7.7 不定式作状语

1）目的状语

To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……)

He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。

I come here only to say good-bye to you. 我来仅仅是向你告别。

2）作结果状语，表事先没有预料到的，要放在句子后面。

What have I said to make you angry.

He searched the room only to find nothing.

3) 表原因

I’m glad to see you.

典型例题

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

A. sit B. sit on C. be seat D. be sat on

答案：B. 如果不定式为不及物动词，其后应有必要的介词。当动词与介词连用时，常位于"形容词+动词不定式"结构的末尾。

7.8 用作介词的to

to 有两种用法： 一为不定式+动词原形； 一为介词+名词/动名词, to 在下面的用法中是第二种，即to+ 名词/动名词：

admit to承认， confess to承认，

be accustomed to 习惯于， be used to 习惯于， stick to 坚持， turn to开始，着手于， devote oneself to 献身于， be devoted to 致力于， look forward to 盼望， pay attention to 注意

7.9 省to 的动词不定式

1） 情态动词 ( 除ought 外，ought to)：

2） 使役动词 let, have, make：

3） 感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后作宾补，省略to。

注意：在被动语态中则to 不能省掉。

I saw him dance.

=He was seen to dance.

The boss made them work the whole night.

=They were made to work the whole night.

4） would rather，had better：

5） Why… / why not…：

6） help 可带to，也可不带to, help sb (to) do sth：

7） but和except：but前是动词do时，后面出现的动词用不带to的动词不定式。

8） 由and, or和than连接的两个不定式，第二个to 可以省去：

9） 通常在discover, imagine, suppose, think, understand等词后，可以省去to be：

He is supposed (to be) nice. 他应该是个好人。

举例：

He wants to move to France and marry the girl.

He wants to do nothing but go out.

比较： He wants to do nothing but go out.

He wants to believe anything but to take the medicine.

典型例题

1) ---- 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

答案：D. why not 后面接不带to 的不定式，因此选D。

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

A. learn B. to learn C. learned D. learning

答案：B. make后接不带to 的动词不定式，当其用于被动时，to 不可省略。

7.10 动词不定式的否定式

Tell him not to shut the window…

She pretended not to see me when I passed by. 我走过的时候，她假装没看见。

典型例题

1）Tell him ___ the window.

A. to shut not B. not to shut C. to not shut

D. not shut

答案：B。 tell sb to do sth 的否定形式为tell sb not to do sth.

2) She pretended ___ me when I passed by.

A. not to see B. not seeing C. to not see

D. having not seen

答案：A。 pretend 后应接不定式。其否定形式为pretend not to do sth.。

3）Mrs. Smith warned her daughter ___ after drinking.

A. never to drive B. to never driver

C. never driving D. never drive

答案：A。warn sb to do sth. 的否定形式为warn sb not to do sth. 此处用的是否定词never.

4) 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

答案：A。not to 为not to do it 的省略形式。可以只用to这个词，而不必重复整个不定式词组。及物动词do后应有名词、代词等，否则不对，因此B，D不对。

5) The patient was warned ___ oily food after the operation.

A. to eat no B. eating not C. not to eat

D. not eating

答案：C。warn一词要求后用不定式，此处为不定式的被动，否定形式为be warned not to do。

7.11 不定式的特殊句型too…to…

1）too…to 太…以至于…

He is too excited to speak.

他太激动了，说不出话来。

---- Can I help you ? 需要我帮忙吗?

---- Well, I’m afraid the box is too heavy for you to carry it, but thank you all the same. 不用了。这箱子太重，恐怕你搬不动。谢谢您。

2) 如在too前有否定词，则整个句子用否定词表达肯定， too 后那个词表达一种委婉含义，意 为"不太"。

It’s never too late to mend. (谚语)

改过不嫌晚。

3) 当too 前面有only, all, but时，意思是：非常… 等于very。

I’m only too pleased to be able to help you. 我非常高兴能帮助你。

He was but too eager to get home. 他非常想回家。

7.12 不定式的特殊句型so as to

1） 表示目的；它的否定式是so as not to do。

Tom kept quiet about the accident so as not to lose his job.

汤姆对事故保持沉默是为了不丢掉他的工作。

Go in quietly so as not to wake the baby.

轻点进去，别惊醒了婴儿。

2) so kind as to ---劳驾

Would you be so kind as to tell me the time?

劳驾，现在几点了。

7.13 不定式的特殊句型Why not

"Why not +动词原形"表达向某人提出建议，翻译为："为什么不……?" "干吗不……?"

例如：

Why not take a holiday?

干吗不去度假?

7.14 不定式的时态和语态

时态\语态 主动 被动

一般式 to do to be done

进行式 to be doing

完成式 to have done to have been done

完成进行式 to have been doing

1) 现在时：一般现在时表示的动词，有时与谓语动词表示的动作同时发生，有时发生在谓语动词的动作之后。

He seems to know this.

I hope to see you again. = I hope that I’ll see you again. 我希望再见到你。

2) 完成时：表示的动作发生在谓语动词表示的动作之前。

I’m sorry to have given you so much trouble.

He seems to have caught a cold.

3) 进行时： 表示动作正在进行，与谓语动词表示的动作同时发生。

He seems to be eating something.

4) 完成进行时：

She is known to have been wreaking on the problem for many years.

7.15 动名词与不定式

1） 动名词与不定式的区别：

动名词表达的是： 状态，性质，心境，抽象，经常性，已发生的

不定式表达的是： 目的，结果，原因，具体，一次性，将发生的

2） 接不定式或动名词，意义相同。

3） 动名词与不定式语义不同的有11 组：

1 stop to do stop doing

2 forget to do forget doing

3 remember to do remember doing

4 regret to do regret doing

5 cease to do cease doing

6 try to do try doing

7 go on to do go on doing

8 afraid to do afraid doing

9 interested to do interested doing

10 mean to do mean doing

11 begin/ start to do begin/ start doing

㈨ 不定式作状语的时候通常表示目的、结果、原因,能否各造一个句子

不定式作目的状语：I stayed at home to have a good rest. 我在家里想好好休息一下。
不定式作结果状语：I'm too tired to play football today. 我太疲劳今天不能踢球了。
不定式作原因状语：She felt bad to think of the problem. 想到那个问题就让她不舒服。

㈩ 怎么区分动词不定式是做状语还是宾补啊

交你一个简单的区分方法，紧跟宾语的就是宾语补足语，没有紧跟宾语的就是目的状语。
第一句如果改成your son asked you to have dinner，那么to have dinner就不再是目的状语，而是宾语补足语了。不过它们只是句子成分变了，但表达的内容并没有改变。
第二句如果改成he invited me to come home to attend his birthday part，那么原来做宾语补足语的to attend his birthday part现在就变成目的状语了。
这两个例句中其实没必要严格区分究竟是目的状语还是宾语补足语，无论它们的句子成分是什么，它们在这里都表示的是目的，只是在句中的位置不同罢了。