动词不定式的用法
动词不定式用法大全
动词不定式用法大全英语动词的非谓语形式为三种：动词不定式、动名词和分词。
非谓语动词没有人称和数的变化。
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。
To say is to believe.眼见为实。
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:（在形式上，位于系动词后的就是表语。
从含义上讲，表语是回答主语“是什么"或“怎么样"的语法成分。
)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。
不定式的用法总结
My brother asked me to clean the room
with him.
常带 to 的不定式做宾语补足语的动词有: ask, beg, prefer, help, promise, wish, want, expect, permit, request, allow, command,
• You must remember to lock the door when you leave
• • • • • • • • • •
2. remember doing sth 记得曾做过某事 I remember locking the front door 3. forget to do sth 忘记要做某事 He forgot to do his homework yesterday 4. forget doing sth 忘记曾做过某事 I forgot saying this thing to you 5. try to do sth 努力做某事 He tries to answer each question 6. try doing sth 试着做某事 I tried singing an English song
doing指经常性动作，而 to do指一次性的动作。 I like swimming，but I don‘t like to swim now． 我喜欢游泳, 但我现在不想游。 begin\start to do sth begin\start doing sth
提示板：
• 后面只接动名词做宾的动词
巧记动词不定式作宾语歌诀：
•
• • • • • • •
想要拒绝莫忘记 （want, refuse, forget） 需要努力就学习 （need, try, learn） 喜欢帮助加同意 （like help agree ） 希望决定后开始 （hope, decide, begin, start）
史上最完整动词不定式的用法
4.动词不定式作表语
1．主语和表语都是不定式（其含义ind to the enemy is to be cruel to the people.
To do that would be to cut the foot to fit the shoe.
2 ． 主 语 是 以 aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为中心词的名词词组，或以 what 引导的名词性从句表示，表语用不定 式说明其内容，如：
1. 动词不定式作主语 动词不定式作主语，谓语动词用第三
人称单数。
To get there by car will take a whole day.
How to get enough money is still a question.
1. 动词不定式作主语
有时候为了保持句子平衡，常用it 作形式主语，放到句首，而将作真 实主语的动词不定式放到句末。
My idea is to climb the mountain from the north. My suggestion is to start work at once.
What I would suggest is to start work at once.
注：在某些句型中，当主语部分有动作 动词do 时，作表语的不定式可以省略符 号 “to”，如：
3. We climbed to the top of the tower ___D_____a better view of the area.
A. getting
B. got
C. having got
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。
动词不定式用法小结
动词不定式的用法一、做主语例如：To be a doctor is not easy.To learn English well is hard.为了避免头重脚轻，一般在句子前面加上形式主语“It”，而把真正的主语“动词不定式”放到句子后面。
It is not easy to be a doctor.It is hard to learn English well.It is important to plant trees in spring.为了表示动词不定式是说谁的，一般在形容词后面加上“for”引导的短语It is good for us to read English aloud in the morning.It is importang for students to use English every day.二、作宾语动词不定式可以放在一些词后面作宾语。
Want/like/begin/forget/help/need/ remember/start/stop/wish/agree/prefer/try/decide/believe/wish/agree/promise /choose/understand等，其中宾语一定要了解句子中和谓语动词的接续关系。
I want to tell you a story.They begin to work at eight every morning.Don't forget to lock the door.would you like to go and have a picnic with us tomorrow?如果用and连接两个动词不定式，第二个一般省略toHe wants to go and have a swim with us.如果作宾语的动词不定式很长，可以用it做形式宾语I find it interesting to learn English with you.He think it hard to catch up with others.三、做定语不定式作定语一般放在所修饰的名词或代词后面，且有动宾关系。
动词不定式的用法归纳
My question is when to start.
注意：•在与why连用时，只用于why或why not开头的简 短疑问句中，后面紧跟的动词不定式不带to。
Why not have a rest?
(9) 不定式的省略
3. 表示原因: 不定式可以用在作表语的形容词后作 状语, sorry, surprised, happy, glad, eager, angry, foolish, right, wrong, slow, quick, rude, cruel, disappointed等。
eg: I’m glad/pleased to see you. We were surprised to hear the news.
(4).独立结构作状语
To tell (you) the truth, I don’t agree with you.
类似的结构 •to be frank, •to be honest (with you), •to make things worse,
(8)不定式与疑问词who,which, when, how, what等连用，在句中起名词作用，可充当主语、 表语、宾语等。 He didn’t know what to say.
4. I don’t have time to sit around feeling sorry for myself. (attribute)
5. I am the only student in my class to have a pet snake. (attribute)
6. A big company has decided to buy it from me. (object)
动词不定式的用法总结
动词不定式的用法总结
1、动词不定式作主语时常用it来作形式主语，而将动词不定式移至谓语动词后作真实主语。
It is dangerous to drive very fast.
2、动词不定式可以作表语，如果主语部分含有实义动词do，且作表语的动词不定式又是do 的内容，这时表语不定式的to可以省去。
My idea is to ring him up at once.
3、动词不定式作宾语。
I do not know who to ask .
4、用作宾语补足语的动词不定式.
He was heard to sing every day .
5、不定式复合结构for somebody to do something。
可用作主语\表语\定语\状语等。
It is for her to decide.
6、作状语的动词不定式常表示目的、原因、方法、方向、结果等。
I am glad to meet you.
7、作定语的动词不定式。
We have no time to go to the town today .。
动词不定式的用法大全
动词不定式的用法大全动词不定式的用法大全一、动词不定式是什么?简单来说：to do，非谓语动词形式之一二、位置?须位于被其修饰的名词或代词之后如：Is this the best way to help him?三、作用?具有名词，形容词，和副词的作用四、在句中可做的成分?除了不可做谓语外，其他成分都可以充当如：主语，宾语，定语，表语，宾补，状语(目的，结果，原因)例句：1.To see is tobelieve.眼见为实/百闻不如一见。
(做主语)2. I wish to be sentto work in the country. (做宾语)3. Can you tell me which is the car to be repaired (做定语)4. My work is to clean the room every day. (做表语)5. He went to the hospital to be examined . (做目的状语)6. I don’t think it rightto do it that way. (做宾补)注意：英语中为了避免头重脚轻(说白了就是平衡句子结构的需要)，往往to do一般用it作形式主语(It+be+形容词/名词词组+to do sth/ that)如：To help each other is good. =It is good to help each other .这句话的主语是老师标紫色的字体。
五、不定式的用法1.不定式常可用来修饰人也可以修饰物，表示已经将要发生的动作。
如：(1)He was the first guest to arrive. 他是第一个到达的客人。
(2)He was a brave man to do what he did.他是个勇者才有这样的行为。
注意：在主谓关系中，不定式所修饰的名词或代词前面常有only，first，last，next，序数词、形容词最高级等修饰或no,all,any等限定的中心词也就是我们常说的表示“第几次（个）做某事”通常用to do ，不用doing3.很多特定的名词后也可用不定式做定语，这样的名词常用的有：way，time，reason，chance，opportunity，need，wish，effort，right，ambition等。
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help
用所给动词的正确形式填空
1. We often hear him __s_i_n_g__(sing) this song in English. 2. We heard him _s_i_n_g_in_g_ (sing) in the next room
yesterday. 3. I saw her _g_o_i_n_g_(go) shopping at this time yesterday.
用所给动词的正确形式填空
1. Please remember __t_o_t_u_r_n___(turn) off the light when you leave.
2. I remember ___s_ee_i_n_g____ (see)you somewhere before.
3. They stopped __t_a_lk_i_n_g__(talk) when the teacher came in.
一、定义 动词不定式是非谓语动词的一种，它没有
人称和数的变化，在句子中不能独立作谓语， 但它仍保持动词的特点，既可以有自己的宾 语和状语。 二、结构
to+动词原形do 三、用法
动词不定式具有名词、形容词和副词的特
征。因此在句中可以做主语、表语、宾语、 宾语补足语、定语和状语
指出下列句子中的动词不定式的语法功能
3、我们认为保持我们的环境干净整洁是我们的责任。 We believe _i_t_o_u_r_d_u__ty__to__k_e_e_p_o_u_r__e_n_v_ir_o_n_m__e_n_t___ _c_l_e_a_n_a_n_d__t_id_y__.
选择填充
1. I told Bob ___D__ the TV since it was too late.
stop to do 停下来做另一事
go on to do 继续做另一件事
stop doing 停止做某事
go on doing 继续做同一件事
不定式作宾语时，如带有宾语补足语，则要把不定式
放到后面，用it作形式宾语，构成“主语+动词+it+宾 补（形容词、名词）+不定式”结构。
如：He found it very difficult to get to sleep.
作状语 作表语 作定语
用所给动词的正确形式填空
1. I want __to__d_o__ (do) it myself.
2. Our teacher promised __t_o_s_e_e_ (see) the movie with us.
3. After you finish _r_e_a_d_in_g_ (read) it, you must return it to me. 4. He often practices _s_p_e_a_k_in_g__ (speak) English with Mr Green. 5. You’d better put off __h_a_v_in__g_ (have) the meeting till next
4. They stopped ___t_o_d_o___(do) their work when the teacher came in.
有些动词既可跟不定式作宾语，也可跟动名词作宾语，但含义不
同：
remember to do 记住要做某事
forget to do忘记要做某事
remember doing 记得曾经做过某事 forget doing 忘记曾经做过某事
2. A. turn off B. turns off C. turning off D. to turn
off
C
3. 2. My parents asked me _____ home earlier yesterday.
4. A. get
B. getting AC. tThe bob often made him _____ twelve hours a day.
month.
①用不定式作宾语的动词有： want, hope, wish, like, begin, try, need, forget, agree,
know, promise, teach, refuse, help, decide等。
②用动名词作宾语的动词有：
do, go, finish, enjoy, practice, keep, put off, give up等
翻译下列句子
1、我们发现与他工作很困难。 We find _i_t_d_i_ff_i_c_u_lt_t_o__w_o_r_k_w__it_h__h_im_____________.
2、我们认为保护树木很重要。 We think _it_v_e_r_y__im__p_o_r_t_a_n_t_t_o_p_r_o_t_e_ct__th_e__tr_e_e_s____.
句子
语法功能
1. She wanted to borrow my CD player. 2. Lucy asked him to turn down the radio. 3. To learn a foreign language is not easy.
作宾语 作宾补 作主语
4. She went to see her grandma last Sunday. 5. His job is to feed the chickens. 6. Have you got anything to say?
61.、后A面.能wo接rkto不定B.式w作ork宾s 语补C足. 语wo的rk动ed词有：D. to
waoskr,ktell, order, invite,teach, tell, want, wish等。
2、后面接不带to的不定式作宾语补足语的动词有：
使役动词：let, make, have 感官动词：feel, listen, hear, look at, see, watch, notice 3、后面带to或不带to的不定式作宾语补足语的动词有：