当前位置：文档库 › 英语动词不定式专项练习学习资料

英语动词不定式专项练习学习资料

动词不定式专项练习

一．单项选择。

1. You’d better ______ to see a doctor.

A. to go

B. go

C. went

D. going

2. Can you finish _____ an egg in a second?

A. draw

drawing C. drew D. to draw

3. I have something important ____ you.

A. tell

telling C. to tell D. told

4. The doctor was busy ____ on the boy at that time.

A. operate

operating C. operated D. to operated

5. My father enjoys ____ to light music.

A. listen

B. to

listen C.

listens D. listening

6. It is not easy ____ maths.

A. studies

study C. to

study D. studying

7. It was very late at night, but Mr. Brown still went on ____.

A. works

worked C. working D. work

8. “Stop ____ and listen to me carefully.” said the teacher.

A. to talk

talk C.

talking D. talks

9. We have worked for two hours.

Now let’s stop ____ a break.

A. having

had C. to

have D. have

10. I really don’t know ____ the clock.

A. to repair

B. to how

repair C. how repair D. how to repair

11. He told me ____ on with the work.

A. to go

B. going

go D. went

12. The policeman told the boys ____ in the street.

A. to not play

B. not play

C. not to play

D. don’t play

13. I won’t let you ____ that in this way.

A. to do

do C.

doing D. done

14. The boss made them ____ ten hours a day.

A. worked

working C. work D. to work

15. I heard him ____ in the next room.

A. sings

B. sang

sung D. sing

二．用括号中动词的适当形式填空。

1．Could you please stop ________ (make) so much noise?

2. Chinese students spend too much time ___________ (study) every day.

3. I wish that dog would stop __________ (bark). It’s driving me mad.

4. Would you know what __________ (do) if an earthquake happened?

5. Jimmy is looking for a job. He hopes __________ (find) something soon.

6. Why don’t you ________ (move) to a larger apartment?

7. The old lady doesn’t allow __________ (smoke) in her house. But she allowed her grandson __________ (do) it yesterday.

8. You’ll never forget how _________ (ride) a bike once you have learned.

9. Have you finished ______ (read) the novel yet?

10. I’ve never been to Australia but I’d lik e __________ (go) there someday.

11. Why do you keep __________ (change) the channels? What on earth do you want to watch?

12. I have enjoyed __________ (meet) you. I hope __________ (see) you again soon.

动词不定式用法详解

动词不定式是一种活跃的非谓语动词。它在句中起的是名词。形容词或副词的作用,可在句子中作主语。宾语。定语。状语和宾语补足语。动词不定式的形式是"to +动词原形",但to有时要省去。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:

一、带to的不定式结构

1.我们学过的能直接跟带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。

2.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.。例如:

Jim told me not to wake up Kate.吉姆告诉我别叫醒凯特。

二、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.。例如:

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。例如:

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。

"Why not+不带to的不定式"是Why don't you do…的省略,可以用来提出建议或劝告。例如:

Why not go with us。为什么不和我们一起去呢。

Why not take a holiday。=Why don't you take a holiday。为什么不休个假呢。

三、动词不定式作主语

不定式结构作主语时,现代英语倾向于采用it作形式主语,而把不定式结构后置的形式。例如：

It’s difficult to learn English well. 学好英语很难。

四、动词不定式作定语

不定式作定语,要放在它所修饰的名词或代词的后面。例如:

I have nothing to say on this question.对这个问题我无可奉告。

五、动词不定式作宾语

有的及物动词要求跟复合宾语(即宾语+宾语补足语)。如果其中的宾语是不定式短语,则必须将形式宾语it放在宾语的位置上,而将不定式短语(真正的宾语)放在宾语补足语之前。例如:

I find it useful to learn English well.我发现学好英语很有用。

We thought it wrong not to tell her.我们认为不告诉她是错误的。

六、动词不定式作宾语补足语

动词不定式作宾语补足语是动词不定式用法的一个重点,学习时要注意以下三种情况:

1.作动词ask, like, tell等的宾语补足语时,动词不定式符号to不可以省略。

例如:

He asked me to talk about English study.他请我谈谈英语学习。

2.作使役动词let, have, make以及感官动词feel, hear, see,

watch等的宾语补足语时,动词不定式符号to要省略。例如:

The teacher made him say the word like this.老师让他像这样说这个单词。

3.作动词help的宾语补足语时,动词不定式符号to可以带,也可以不带。例如:

Could you help me (to) carry the heavy box。你能帮我搬这个重箱子吗。

七、动词不定式作状语

动词不定式及其短语具有副词的特性,可在句中用作状语。

1.放在句首也可以放在句尾表示目的等。例如:

He stopped to have a rest.他停下来休息。

2.跟在作表语的形容词或过去分词的后面。例如:

I'm sorry to hear that.听到这事我感到很难过。

3.用在too... to...结构中。例如:

He is too young to understand all that.他太年轻了,不能理解这件事。

英语语法归纳之非谓语动词(过去分词)

英语语法归纳之非谓语动词（动名词）敬告：以下内容，不参加高考等有语法题（语法单选、语法填空、短文改错等）考试的应用类学员无须深究，知道该语法结构的存在，及其充当的句子成分和功能即可，应多花时间练习听说读写，否则就背离了语言学习真正目的。应试类学员有时间可以比较分析，基本搞懂。过去分词长什么样？规则的情况下与动词过去式相同，当然有不规则的情况；过去分词可以充当定语、状语、补语、定语，不可能充当主语、宾语；过去分词不像现在分词有多种体现时态和语态的形式，只有一种形式done表示。 1、过去分词可以充当主谓宾补句型中的宾语补语；它与宾语是被动关系，或者说它与宾语是动宾关系。 (1) We found the fish eaten by our cat. (2) I can’t make myself understood because of my poor English. 2、过去分词可以充当定语；充当定语当然是修饰主语、宾语等名性的结构；表达过去分词的动作是被动的或完成，或即被动又完成的。 (1) The party had last night (which was had last night) was very cheerful. (2) USA is a developed country (a country which has been developed). (3) A great number of students questioned (who had been questioned) said they were forced to practice the piano. 3、过分词可以充当状语，它与主句主语是被动关系，或者说它与主句的主语是动宾关系；过去分词一般只强调被动动作而不强调时间，多用于条件和原因状语；(1) Taken in time, the medicine will turn out to be very effective. If the medicine is taken in time, it will turn out to be very effective. (2) Offered an important role in a new movie, Andy has a chance to become famous.

情态动词大学英语语法精解

大学英语语法精解——情态动词首先让我们分析以下近几年情态动词的考题： 1) This box is too heavy, _________give me a hand?(1998.1) A .would you mind B. would you please C. will you like to D. will you please to 2) Research findings show we spend about two hours dreaming every night , no matter what we ____ during the day.(1999.1) A. should have done B. would have done C. may have done D. must have done 3)It was very kind of you to do the washing-up,but you____ it.(1998.6) A. mustn't have done B. wouldn't have done C. mightn't have done D. didn't have to do 4) If you don't like to swim, you ___ stay at home.(1995.1) A. should as well B. may as well C. can as well D. would as well 5) You ____ him so closely;you should have kept your distance.(2000.6) A. shouldn't follow B. mustn't follow C. couldn't have been following D. shouldn't have been following 6) You ___her in her office last Friday; she's been out of town for two weeks.(1996.1) A. needn't have seen B. must have seen C. might have seen D. can't have seen 7) The room is in a terrible mess; it ____ cleaned.(1996.6) A. can't have been B. shouldn't have been C. mustn't have been D. wouldn't have been 参考答案 1) B 2) C 3) D 4) B 5) D 6) C 7) A 2．情态动词的测试要点从以上例题可以看出，四级语法对情态动词的测试大体有以下几点。 1）情态动词的基本用法，如①④⑤。 2）情态动词+ 动词的完成形式的用法，如③⑥。 3）情态动词的推测性用法,如⑦。

英语情态动词专项练习题及答案含答案解析

英语情态动词专项练习题及答案含答案解析一、初中英语情态动词 1．— _______ you play tennis? —Yes, and I'm a good player. A. Can B. May C. Must D. Should 【答案】 A 【解析】【分析】句意：——你会打网球吗？——会，我是一名优秀的网球员。Can能，表示能力；may可以，表示允许；must必须，表示要求；should应该，表示建议；结合句意，此处表示能力，故用情态动词can，故选A。【点评】此题考查情态动词的用法。 2．All passengers ______ go through safety check before they take a plane. A. can B. may C. must D. could 【答案】 C 【解析】【分析】句意：所有乘客登机前必须接受安全检查。A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。登机前必须安检。故选C。【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。 3．You be tired after walking for such a long time. Sit down and have a rest. A. can B. can't C. mustn't D. must 【答案】 D 【解析】【分析】句意：走了这么长时间你一定很累了。坐下休息一下吧。can能，能够，can't不能，对事物进行否定推测；mustn't一定不是，禁止，must一定，对事物进行肯定推测，根据after walking for such a long time，可以肯定你一定很累，所以是进行肯定推测，情态动词使用must，故选D。【点评】此题考查情态动词。弄清每个情态动词的使用规则，根据句意确定所使用的情态动词。 4．—Where is Mom now? —I'm not sure. She _________ be in the kitchen. A. shall B. may C. need D. must 【答案】 B 【解析】【分析】句意：—妈妈现在在哪里？—我不确定，她也许在厨房。A. shall 将要； B. may 可以，可能； C. need 需要； D. must必须，一定；根据I'm not sure可知是不确定；故选B。【点评】此题考查情态动词表推测的用法。 5．—Who it be that is knocking at the door? —It be father, but I'm not sure.

初中英语语法知识—非谓语动词的知识点

一、选择题 1．—Let's think about _______ A Bite of China tonight? —That sounds good! A．watch B．watching C．to watch D．watches 2．—Do you prefer basketball with me? 一No,I’d rather at home and watch TV. A．play;stay B．to play;to stay C．play;to stay D．to play;stay 3．If you really don’t know _______ at the party, you can come to me. A．who will you talk with B．who to talk C．who to talk to D．who you will talk 4．—You don’t know what great difficulty I had ________ to get the two tickets. —But the film is really worth _________ twice. A．managing; seeing B．to manage; seeing C．managing; being seen D．managed; to see 5．Our parents won't allow us _____ in the river alone. A．swim B．to swim C．swimming D．swam 6．—It’s time _____ lunch. —OK. Let’s _____. A．for; go B．for; going C．to; going D．to; go 7．— Mr. Wang, I have trouble __________ the text. — Remember __________ it three times at least. A．to understand；reading B．understanding；to read C．understanding；reading D．to understand；to read 8．Dan shows an interest in musical instruments and is often heard _____ the guitar. A．play B．played C．playing D．to play 9．The snow makes them______ cold, so they want to make a fire_______ warm. A．feel , to keep B．to feel, keep C．feel, keep D．to feel ,to keep 10．It usually takes him half an hour ________ the homework. A．finish B．finishing C．to finish 11．The journey made them ________very tired. A．to feel B．feeling C．feel 12．I don’t know how________there. I need to look at the map.

(完整版)高中英语语法动词不定式和动名词做宾语

巧记跟不定式和动名词做宾语的动词用法语法体现语言的规律,学好英语离不开语法学习。其中，动词的用法是重点，也是难点。对于谓语动词和非谓语动词的用法，学生普遍感到困难。学生感到50多个动词，用法难以掌握，但调整了单词的排列顺序，根据汉意编写顺口溜会方便记忆：（一）跟不定时作宾语的动词有：打算(intend)计划(plan)和期盼(expect/desire) 假装(pretend)喜欢(would like/love/prefer)表祝愿(wish) 决定(decide)同意(agree)来帮助(help) 设法(manage)说服(persuade)不拒绝(refuse) 好像(seem/appear)答应(promise)做努力(attempt) 选择(choose)询问(ask)多学习(learn) 告诉(tell)失败(fail)也付得起(afford) 不定式宾语要牢记！（二）跟动名词作宾语的动词有：考虑（consider）完成（finish）多练习（practise）避免（avoid）冒险（risk）求建议（suggest/recoomend）面对（face）喜欢（enjoy/appreciate）和介意(mind) 允许（allow）承认（admit/permit）或放弃(give up/abandon) 推迟（put off/delay/postphone）逃避（escape）不原谅（excuse/pardon）提及（mention）坚持(keep/insist on）要想象（imagine/fancy）还有词组feel like 和can’t stand！瞧！，我们就这样快快乐乐地记住了吧！（三）在动词remember, try, regret, forget, need/want/require， stop, mean等后跟动名词V-和不定式意义不同，巧记一句话（记住努力；后悔忘记；需要停止；很有意义），学习采用对比法： remember to do something记着去做某事（现在还没有做） remember doing something记着曾做过某事（以前做过某事） try to do something努力、尽力做某事 try doing something试着做某事（看能否达到预期的结果） stop to do something开始做某事（停下正在做的事，开始做另一事） stop doing something停止做某事（停止正在做的事） regret to do something对将来做的事感到遗憾、惋惜 regret doing something对已经做过的事感到后悔

初中英语语法知识—情态动词的全集汇编及答案(3)

一、选择题 1．— Must I go home? — No, you ________. A．can’t B．mustn’t C．don’t D．needn’t 2．-Listen! A wolf is crying! -It _______ be a wolf, because a wolf never comes out at this time. A．mustn’t B．needn’t C．can’t D．don’t 3．A: Is Jim coming by train? B: I’m not sure. He _______ drive his car. A．must B．may C．need D．should 4．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 5．—______ you please tell me something about the life in Canada or America?—Sorry, I______. I don’t know either. I’m from Australia. A．Could; couldn’t B．Can; couldn’t C．Could; can’t D．Can; mustn’t 6．—Jenny, we buy Mom presents. We can clean the house from top to bottom.—Good idea! It’s a special present for Mother’s Day. A．can’t B．mustn’t C．shouldn’t D．needn’t 7．— May I have some wine? — No, you . You have to drive home later. A．shouldn't B．needn't C．mustn't D．may not 8．—Jack must be in his office, I think. —No, he be in the office. He flew to Canada this morning. A．needn't B．shouldn't C．can't D．mustn't 9．Since the road is muddy,it ________last night, ________? A．must be rained; wasn’t it B．must have rained; didn’t it C．must rained; didn’t it D．must have rained; wasn’t it 10．—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true. A．must not B．may not C．needn’t D．will not 11．-_________ you help me with my homework? -Of course if I __________. A．Could; could B．Can't; can C．Could; can D．Can; could 12．—Must we finish the work right now? —No, you ________. You can do it tomorrow. A．needn’t B．shouldn’t C．mustn’t D．can’t 13．— Will Jim come to Yangzhou for a holiday? — He ________come, it depends on how much homework he will have.

【英语】高三英语情态动词专项训练及答案及解析

【英语】高三英语情态动词专项训练及答案及解析一、单项选择情态动词 1．It wasn’t right to me that such near neighbors not know one another. A．could B．would C．should D．might 【答案】C 【解析】【详解】考查情态动词。句意：对我来说，很不正常，如此近的邻居居然不认识。A. could可能，能够；B. would将；C. should竟然；D. might可能，也许。should 作为情态动词，可以用来表示意外、惊喜或者在说话人看来是不可思议的，常常译为"竟会"、"居然"，住的这么近的邻居居然不认识。表示意外，所以答案选C。【点睛】 should的用法 1、should 作为情态动词,通常用来表示现在或将来的责任或义务,译作“应该”、“应当”,这时它可以和 ought to, be supposed to 互换使用.例如：You should （= ought to ） tell your mother about it at once. 2、should 作为情态动词,可以用在条件状语从句中,表示语气较强的假设,译作“万一”、“竟然”,这时也可将 should 置于从句之首,即将 should 放在主语前面,而省略从属连词 if。例如：If you should fail to come, ask Mrs Chen to work in your place. （= Should you fail to come, ask Mrs Chen to work in your place. ） 3、should 作为情态动词,可以表示谦逊、客气、委婉之意,译为“可……”、“倒……”。例如：I should say that it would be better to try it again. 4、should 作为情态动词,可以用来表示意外、惊喜或者在说话人看来是不可思议的.尤其在以 why, who, how 等开头的修辞疑问句或某些感叹句中常常译为“竟会”、“居然”。例如：How should I know it ? 我怎么会知道这件事? 5、should 作为情态动词,可以用来表示有较大可能实现的猜测、推论,通常译为“可能”、“总该……吧”,相当于 be expected to 。例如：They should be home by now, I think. 我想现在他们总该到家了吧。 6、should 作为情态动词,用在由 so that, for fear that, lest 引导的目的状语从句和 in case （that）引导的条件状语从句中,有“能够”、“可能”、“会”之意。例如：They got up early so that they should （= could/ might） catch the first bus in time. 7、should 作为情态动词,可以用于下列虚拟语气句中： (1）用在表示与将来事实相反的条件状语从句中,构成“ If …… should （do sth）……, …… would/ could/ might （do sth.）…… ”句式。 (2) 用在 suggest （propose）, arrange, plan, decide, advise, order, demand, request, desire, insist 等表示“建议”、“要求”、“命令”、“决定”、“安排”、“计划”、“主张”的动词后面接的宾语从句中。这里的 should 也可以省略。本句中should 作为情态动词，可以用来表示意外、惊喜或者在说话人看来是不可思议的，

高中英语语法讲解【非谓语动词】

高中英语语法讲解【非谓语动词】【专题要点】非谓语动词和独立主格结构主要用法如下： 1.动名词和动词不定式作主语、宾语； 2.只跟动名词作宾语的动词或动词短语； 3.只跟动词不定式作宾语的常见动词； 4.既可以跟动名词又可以跟动词不定式作宾语，且意义不同的动词或短语； 5.不定式、现在分词、过去分词作宾语补足语的区别； 6.不定式、现在分词、过去分词作定语时的区别； 7.不定式、现在分词、过去分词作状语时的区别； 8.动名词的复合结构在句中作状语； 9.there be 结构的两种非谓语形式； 10.独立主格结构在句中作状语； 11.with复合结构在句中作状语或定语。【教法指引】非谓语动词包括不定式、v-ing形式和过去分词，是高中英语学习的难点，也是高考考查的重点。高中英语非谓语动词是一个重要考点，教师在引导学生复习备考中要注意重点突出、训练得当，尤其是对以下要点的复习： 1.不定式、现在分词与过去分词的用法区别； 2.非谓语动词的主动式与被动式； 3.非谓语动词完成式的用法； 4.非谓语动词用作伴随状语； 5.非谓语动词用作目的状语； 6.非谓语动词用作结果状语； 7.非谓语动词用作宾语补足语；

8.非谓语动词的逻辑主语问题； 9.非谓语动词用作主语的问题； 10.“（be+）过去分词+介词”结构； 11.动名词的复合结构和there be结构的非谓语动词形式。对于独立主格结构的复习，教师必须要讲清它的构成方式和在句子中的作用以及与with复合结构和分词之间的辨析的关系。【知识网络】非谓语动词主要包括不定式、动名词和现在分词。为了区分这三种不同的非谓语动词的用法和含义，我们将分别从三种非谓语动词在句子中做主语、宾语、宾语补足语、定语、状语、表语以及一些特殊结构句型等角度来区分其用法和细微含义。 1．不定式和动名词作主语的区别（1）动名词作主语通常表示抽象动作；而不定式作主语表示具体动作。 Smoking is prohibited（禁止）here．这里禁止抽烟。（抽象） It is not very good for you to smoke so much．你抽这么多烟对你身体很不好。（具体）（2）动名词作主语时，通常用以表示一件已知的事或经验。不定式短语通常用来表示一件未完成的事或目的。 Climbing mountains is interesting．爬山很有趣。（经验） Driving a car during the rush hour is tiring．在高峰时刻开车令人厌烦。（经验）（3）不定式做主语，一般用it当形式主语，把作主语的不定式短语后置。 It took me only five minutes to finish the job.我只花了五分钟的时间来完成这项工作。 2．不定式、动名词和分词作表语的区别（1）不定式作表语 1）不定式作表语一般表示具体动作，特别是表示将来的动作。 To do two things at a time is to do neither．--次做两件事等于未做。 What I would suggest is to start work at once. 我的建议是立刻开始干。

初中英语情态动词专项练习题

情态动词情态动词是一种本身有一定的词义，但要与动词原形及其被动语态一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。情态动词后面加动词原形。情态动词有四类： ①只做情态动词：must,can(could),may(might)…… ②可做情态动词又可做实义动词：need，will ③具有情态动词特征：have(had,has) to,used to，ought to ④情态动词表猜测：一肯一否三不定（must一肯，can not一否，may，might，could，三不定。）注：mustn't代表强烈禁止 must表示主观，have to表示客观。常用的有：can may could must have use . 情态动词无人称和数的变化，情态动词后面跟的动词须用原形，否定式构成是在情态动词后面加 "not"。个别情态动词有现在式和过去式两种形式，过去式用来表达更加客气，委婉的语气，时态性不强，可用于过去，现在或将来。情态动词属非及物动词，故没有被动语态。情态动词表推测的用法小结（一）情态动词表推测的三种句式 1．在肯定句中一般用must （一定），can,could（可能），might /may（也许，或许）。 e.g:(1)He must/can/may,might know the answer to this question. 他一定/可能/也许知道这个问题的答案。 (2)It is cold in the room. They must have turned off the heating. 屋里很冷，他们肯定把暖气关了。 2．否定句中用can’t / couldn’t（不可能），may not/might not（可能不）。

非谓语动词用法归纳语法

一、表格的用法 1.doing 的用法（1）在要求动词后（作宾语）：avoid避免appreciate 感激/欣赏acknowledge承认/自认 admit 承认advocate提倡/主张consider 考虑 can't help不禁 can't stand受不了contemplate细想complete完成confess坦白 dislike不喜欢，讨厌deserve值得 delay 延迟 deny否认 dread可怕defer拖延detest嫌恶 enjoy享有/喜爱envy嫉妒endure忍受excuse借口escape逃跑/逃避finish完成forgive原谅 fancy幻想/爱好favor 造成/偏爱figure描绘/计算hate讨厌 imagine设想involve卷入/包含keep保持miss错过mention说到/讲到mind 介意pardon原谅/饶恕permit允许 postpone推迟practice 实行/实践prevent阻止quit放弃停止risk冒险recall回想resist抵抗/阻止 resume恢复repent悔悟resent怨恨stand坚持/忍受suggest建议save营救/储蓄tolerate忍受

worth值得 You should try to avoid making mistakes. The book is worth reading. The book deserves reading. （2）表进行 Walking on the grassland, I saw a snake.=When I was walking on the grassland, I saw a snake. The man speaking English is Tom. = The man who is speaking English is Tom. （3）表主动 The man speaking English is Tom = The man who speaks English is Tom. = The man who spoke English is Tom. Nobody dinks boiling water but boiled water.= Nobody dinks water that is boiling but the water that has boiled. （4）表伴随 I stand outside waiting for Mr. Chen. I lie in bed reading a novel. （5）表性质；特点 The film is very moving. She is understanding, so you had better discuss your business with her.

英语语法之不定式及名词后加动词不定式

English语法之不定式及名词后加动词不定式在English语法中，动词不定式是动词的一种不带词形变化从而不指示人称、数量、时态的形式。基本形式是to+动词原形，部分词和词组不带to也表达不定式。之所以叫做不定式，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，即不能单独作谓语。但它毕竟是动词，所以有动词的属性，也可以理解此类动词形式为不定式状态的动词。动词不定式及其短语有自己的宾语、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发出,这一使动者称之为逻辑主语。动词不定式可以作多种句子成分。在外语学习的课程中，"动不式"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。对于英语来说接不定式的单词多为“打算”“计划”“希望”“将要”等表示未来的动词。同样与不定时表示不同的动词不定式表示正在进行，一般性或经常发生性的行为。 A.不带to的不定式有四种情况： 1、1、let, make, have等使役动词后。例如： Let us go!出发 The boss made the child labors work the whole night.老板逼迫童工整夜劳作注意：这些情况在被动语态中，不可省to. 例如：The child labors were made to work the whole night. 2、would rather, had better后。

例如：You had better stay at home.你最好呆在家 3、w hy…/w hy not…后。例如：Why not have a happy rest on Sunday? 不定式的否定式是not to do.. / never to do..，不带to的不定式的否定式是not do.../ never do.. 例如：His parents tell him never to drive after drinking.他的父母告诉他酒后严禁驾驶 4.感官动词see, watch, look at, hear, listen to, smell, feel, find，notice等后作宾语补足语。例如: I saw her dance.我看到她在舞除以上四种情况之外，都不得省略to B. 动词不定式的复合结构动词不定式的复合结构是“for sb. to do sth. / of sb. to do sth.” for / of引出不定式动作的逻辑主语。这种结构在句子中可以作主语、宾语、表语、定语、状语等。不定式复合结构的介词用for还是of，主要决定于前面形容词的性质。一般说来，of前面的形容词是careful, clever, foolish, good, kind, nice, wise等，既说明人的特性，又说明不定式动作的特性。for前面的形容词是dangerous, difficult, easy, hard, heavy, important, interesting, necessary等，一般说明不定式动作的特性，不说明人的特性。例如：

初中英语语法情态动词用法大全

情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语。情态动词句和疑问句中表示请求，允许，意为“能够” could 是can 的过去式，意为“能、会”，表示过去的水平在疑问句中表示委婉请求 may 表示请求、许可，意为“能够”表示推测，常用于肯定句中，意为“可能、也许” might 是may的过去式,表推测，常用于肯定句中，意为“可能、也许”must 表示主观看法，意为“必须、应该”表有把握的推测，用语肯定句dare 表示敢于，主要用于否定句和疑问句中 should 意为“应该”，表示要求和命令表示劝告、建议 had better 意为“最好”，表示建议 used to意为“过去常常，表示过去的动作、行为考点一情态动词知识清单情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没哟人称和数的变化，情态动词后必须跟动词原形。 1. can 的用法（1）表示水平、许可、可能性。表示水平时一般译为“能、会”，即有种水平，尤其是生来具备的水平，此时may 和must 均不可代替它。（2）表示可能、能够。如：I can finish it in an hour. （3）表示许可，常在口语中。如：You can use my dictionary. （4）表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t 译为“不可能”。 2.could的用法（1）can的过去式，意为“能、会”，表示过去的水平。（2）could 在疑问句中，表示委婉的语气，此时没有过去式的意思。 3.may的用法（1）表示请求、许可，比can 正式，（2）表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。（3）may的过去式为might ，表示推测时。可能性低于may 。 4. must的用法（1）must 表示主观看法，意为“必须、一定”。（2）其否定形式mustn’t表示“一定不要”“千万别”“禁止, 不许”.（3）对must引导的疑问句，肯定回答为must，否定回答为needn’t或don’t have to . （4）must 表示有把握的推测，用于肯定句。当must 表示肯定的判断、推测时，其反意疑问句要用实际问句的助动词来构成。 She must have finished writing, hasn’t she? 5. need的用法（1）need 表示需要、必须，主要用于否定句和疑问句中，其否定形式为needn’t，意为“没有必要，不必”。用need 提问时，肯定回答为must，否定回答为needn’t。如：----Need I stay here any longer? ----Yes, you must .-----No. you needn’t . (2) need 还能够作实义动词，此时有人称、数和时态的变化，后边多接动词不定式。 6. dare 的用法dare意为“敢、敢于”,用法近似于need，有两种词性：（1）dare 作为情态动词，多用于否定句、疑问句或条件句中，无第三人称单数形式，只有一般现在时和一般过去时。（2）dare 作为实义动词，此时有人称、数即时态的变化。注意：在口语中，dare 的各种形式常与不带to 的不定式连用。Do you dare tell her what I said? 7. shall 的用法（1）shall 表示征求对方意见（多用于第一、三人称）， Shall we go out for a walk? （2）表示决心、警告、命令（多用于第二、三人称）， No one shall bring your beepers or mobile phones in the exam. 8. should的用法（1） should 意为“应该”，可表示劝告、建议、义务、责任等。We should protect the environment. （2） should (would)like to do sth. 表示“想要、愿意做某事”，常用于口语中。Would you like to go with me? 你想和我一起去吗？（3）Should have done 表示对过去动作的责备、批评。 You should have finished your homework. 9. will 的用法 will表示意愿、意志、打算，可用于多种人称。 I will help you if I’m free this afternoon. 10. had better 的用法 had better 意为“最好”，没有人称的变化，后面接不带to 的不定式，其否定形式为：had better not。 We had better go now. You had better not give the book to him. 考点二含有情态动词的疑问句 1. 由can、may、must构成的疑问句（1）句式：Can/ May/ Must…+ 主语+动词原形+….？如：Can you repair the car? Could he be a good student? May I borrow your ruler?Must we clean the room now? （2）对may 引出的问句，能够有下列回答方式：Yes, of course. Yes, certainly.Sure.No, you mustn’t.No, you can’t. （3）对must引出的疑问句，回答为：Yes, …must.No,…needn’t/don’t have to. 2. will，would，shall 的用法（1）will 在一般疑问句中表示客气的“请求、劝说”。would 是will 的过去式，语气更加客气、委婉。Would you show me your picture book? Will you please give me a call? （2）对will/ would you…的回答方式有以下几种：Yes, I will. (No, I won’t.)Sure . (I’m sorry , I can’t.)All right.Certainly. (No, thank you .) Yes, please. （3）shall引出的疑问句用于第一人称，表示征求对方意见或客气的请求。其回答方式有以下几种：Yes, please.All right. No, thank you. 考点三不同情态动词的否定意义也不同 1. （1）can’t可译为“不会”，如：I can’t play basketball. 我不会打篮球。（2）当句子表推测时，用can’t表达不可能，He can’t be ill. He is playing chess with Tom.（3）can’t还可用来回答“ May I …?”这样的问句。May I come in ?No, you mustn’t. / can’t.（4）can’t还可用于固定习语中。She can’t help crying. 2.may 的否定式为may not ，译成“可能不”，He may not be at home. 3.（1）mustn’t表示不许，不可。He mustn’t leave his room.