动词不定式用法归纳
不定式知识点归纳总结

不定式知识点归纳总结一、不定式的构成不定式是动词的一种形式,由“to + 动词原形”构成。
例如:to be, to do, to go等。
二、不定式的用法1. 作主语例句:To study hard is important for students.翻译:努力学习对学生来说是很重要的。
2. 作宾语例句:I want to learn English.翻译:我想学英语。
3. 作宾语补足语例句:She asked me to help her.翻译:她要求我帮助她。
4. 作表语例句:Her dream is to become a doctor.翻译:她的梦想是成为一名医生。
5. 作定语例句:There is a lot of work to do.翻译:有很多工作要做。
6. 作状语例句:He came here to see you.翻译:他来这里是为了见你。
7. 用在and, but, or连接两个不定式例句:I want to learn English and to improve my speaking skills.翻译:我想学英语,还想提高口语能力。
8. 与形容词和副词连用例句:I'm happy to meet you.翻译:见到你我很高兴。
9. 用在名词前表示目的,结果等例句:He gave us some advice to help us study better. 翻译:他给了我们一些建议,帮助我们更好地学习。
三、不定式的特殊用法1. with + 宾语 + 不定式例句:He left me with nothing to say.翻译:他让我无话可说。
2. for + 宾语 + to 不定式例句:We have a lot of work for you to do.翻译:我们有很多工作需要你做。
3. 不定式的被动形式例句:The book is difficult to finish.翻译:这本书难以完成。
动词不定式用法归纳

动词不定式用法归纳动词不定式没有人称和数的变化,在句中不能独立作谓语。
但动词不定式具有名词、形容词和副词特征,在句中可以作主语、宾语、宾语补足语、定语、表语和状语等多种成分。
另外,动词不定式具有动词特点,可以有自己的宾语和状语,组成动词不定式短语。
动词不定式的肯定形式是to+do;其否定形式是not to+do。
1.作主语可以直接作主语。
如:To see is to believe.但在英语中,常用it作形式主语,真正的主语即动词不定式放在后面。
如:It's wrong to play tricks on other people.It's our duty to keep our environment clean and tidy.(Lesson10).点击规律:动词不定式在句中作主语时,常放在It is+adj.(形容词)+to do sth.或It is+n.(名词)+to do sth.句型中,it仅作形式主语。
2.作宾语a.以下动词只能to do作宾语。
attempt企图enable能够neglect忽视afford负担得起demand要求long渴望arrange安排mean意欲,打算begin开始expect期望appear似乎,显得determine决定manage设法cease停止hate憎恨,厌恶pretend假装ask 问need需要agree同意desire愿望love爱swear宣誓volunteer志愿wish 希望bear承受endeavor努力offer提供beg请求fail不能plan计划bother扰乱;烦恼forget忘记prefer喜欢,宁愿care关心,喜欢happen碰巧prepare准备decide决定learn学习regret抱歉,遗憾choose选择hesitate犹豫profess表明claim要求hope 希望promise承诺,允许start开始undertake承接want想要intend想要refuse拒绝decide决定learn学习contrive设法,图谋incline有…倾向propose提议seek找,寻觅try试图b.love,like,begin,start,hate,prefer等词后面可以接不定式。
动词不定式的用法归纳

不定式作结果状语常用如下句型
He
hurried to the school to find nobody there. (结果) He is too old to lift the box.
The
room is big enough to hold us. It is such a big room as to hold us. He is so kind as to help us. such +(形容词)名词 +as to do sth so + 形容词/副词 + as to do sth
3) 不定式用在介词but, except, 后时,如果这些介词 前有行为动词do的各种形式,那么介词后的不定式 不带to,相反则带to. (1). She could do nothing but cry. (2).There is nothing to do but wait. (3). I have no choice but to go.
people. (object complement)
Quiz II Multiple Choice 1. I don’t know whether you happen ____, but I’m going to study in the USA this September. (2004 辽宁)
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.
动词不定式的用法

动词不定式的用法动词不定式是英语语法中的一种形式,通常由“to + 动词原形”构成。
它可以用作名词、形容词或副词,并在句子中起到多种不同的作用。
本文将探讨不定式的用法及其在句子中的具体功能。
一、不定式作名词不定式作名词时,可以充当主语、宾语、表语或介词宾语。
1. 不定式作主语使用不定式作主语可以突出动作的重要性或其所带来的影响。
例句:- To learn a foreign language is challenging but rewarding.学习一门外语既具有挑战性又有回报性。
- To forgive is to set oneself free.宽恕就是使自己获得自由。
2. 不定式作宾语当动词不定式作及物动词的宾语时,表示主语的意愿、打算、决定或能力。
例句:- She wants to become a doctor.她想成为一名医生。
- They decided to go on a trip together.他们决定一起去旅行。
3. 不定式作表语不定式作表语时,说明主语的身份、职业、特征或目的。
例句:- Her dream is to travel around the world.她的梦想是环游世界。
- The purpose of education is to develop one's potential.教育的目的是发展个人潜能。
4. 不定式作介词宾语动词不定式可以跟在某些介词后面,作为其宾语。
例句:- He insisted on taking the lead in the project.他坚持要在这个项目中带头。
- Are you capable of completing the task on time?你能在时间内完成这个任务吗?二、不定式作形容词不定式作形容词时,通常紧跟在名词之后,修饰名词。
例句:- She is the first person to arrive at the meeting.她是第一个到达会议室的人。
动词不定式用法归纳

动词不定式用法归纳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是其符号,它没有人称和数的变化。
动词不定式在句子中可以用作主语、表语、宾语、补足语、定语、状语等。
1、作主语· 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。
上面的句子可以改为:· It is hard to be a doctor. · It is not easy to learn English w ell. · 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。
· 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。
2、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。
· 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。
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。
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动词不定式用法归纳动词不定式没有人称和数的变化,在句中不能独立作谓语。
但动词不定式具有名词、形容词和副词特征,在句中可以作主语、宾语、宾语补足语、定语、表语和状语等多种成分。
另外,动词不定式具有动词特点,可以有自己的宾语和状语,组成动词不定式短语。
动词不定式的肯定形式是to+do;其否定形式是not to+do。
1.作主语可以直接作主语。
如:To see is to believe.但在英语中,常用it作形式主语,真正的主语即动词不定式放在后面。
如:It's wrong to play tricks on other people.It's our duty to keep our environment clean and tidy.(Lesson 10).点击规律:动词不定式在句中作主语时,常放在It is +adj.(形容词)+to do sth.或It is +n.(名词)+to do sth.句型中,it仅作形式主语。
2.作宾语a.以下动词只能to do 作宾语。
attempt企图enable能够neglect忽视afford负担得起demand要求long渴望arrange安排mean意欲,打算begin开始expect期望appear似乎,显得determine决定manage设法cease停止hate憎恨,厌恶pretend假装ask问need需要agree同意desire 愿望love爱swear宣誓volunteer志愿wish 希望bear承受endeavor努力offer提供beg请求fail不能plan计划bother扰乱;烦恼forget忘记prefer喜欢,宁愿care关心,喜欢happen碰巧prepare准备decide决定learn学习regret抱歉,遗憾choose选择hesitate犹豫profess表明claim要求hope希望promise承诺,允许start开始undertake承接want想要intend想要refuse拒绝decide决定learn学习contrive设法,图谋incline有…倾向propose提议seek找,寻觅try试图b.love,like ,begin,start,hate ,prefer等词后面可以接不定式。
点击规律:上述动词后面除接不定式外,还可以接动名词,意思无很大区别。
提示板:like doing指经常性动作,而like to do指一次性的动作。
如:I like swimming,but I don't like to swim now.我喜欢游泳,但我现在不想游。
c.stop,forget,remember,go on ,try等词或短语后面可以接不定式。
点击规律:上述动词后面接不定式和接动名词意思大不相同。
1)stop to do sth.:停止一件事,去做另一件事。
stop doing sth.:停止正在做的事。
例句:When the teacher came in,the students stopped talking;when he came out,the students stopped to talk.当老师走进来时,学生们停止说话;当老师走出去时,学生们又开始说话。
2)思考:forget,remember,go on,try等词或短语后面接不定式和动名词用法有何区别d.在find/feel+it+adj.+to do sth.句型中,it是形式宾语,真正的宾语是后面的动词不定式。
如:The man downstairs found it difficult to get to sleep.I feel it easy to recite the text.点击规律:某些动词或短语后面既可以接动词不定式作宾语,又可接动名词作宾语,二者用法上的区别可以通过造句子加以区分,如上面stop例句。
3.作宾语补足语a.下面的动词要求不定式做宾补:动词+宾语+动词不定式ask要求,邀请get请,得到prompt促使allow允许forbid禁止prefer喜欢,宁愿announce宣布force强迫press迫使bride 收买inspire鼓舞request请求assist协助hate憎恶pronounce断定,表示advise劝告exhort告诫,勉励pray请求authorize授权,委托help帮助recommend 劝告,推荐bear容忍implore恳求remind提醒beg请求induce引诱report报告compel强迫invite吸引,邀请,summon传唤command命令intend想要,企图show 显示drive驱赶mean意欲,打算train训练cause引起instruct指示require要求deserve应受leave使,让tell告诉direct指导like喜欢tempt劝诱entitle有资格order命令warn告诫enable使能够need需要urge激励,力说encourage鼓励oblige不得不want想要condemn指责,谴责lead引起,使得teach 教entreat恳求permit允许wish希望I tell him not to go there by bus .Edison's mother taught him to read and write.b.let,make,have,see,hear,feel,watch,notice后面接不带to的不定式作宾补。
如:The boss makes them work 16 hours a day.I heard her sing in the next room.提示板:若变成被动语态,在上述结构中,不定式符号to要加上。
如:They are made to work 16 hours a day by the boss.She was heard to sing in the next room.4.作定语:放在被修饰的名词、代词后面例句:I have a lot of work to do.The doctor said he could do nothing to help the boy.点击规律:动词不定式若在句中作定语,常放在被修饰的名词、代词之后。
提示板:如果动词不定式和前面所修饰的词构成动宾关系,若动词是不及物动词,切记不要忘掉介词。
如:I have a small bedroom to live in.Have you got some pens to write with5.表语:放在连系动词be后面例句:His wish is to become a scientist.The first important thing is to save the soldiers'lives.当务之急是抢救战士们的生命。
点击规律:动词不定式在句中作表语时,通常对连系动词前面的名词进行诠释说明。
6.作状语a.目的状语:放在go,come,use,live,in order等词后面。
如:I come to see you.He runs fast in order to get there in time.b.原因状语:放在sorry,glad,surprised,disappointed,excited等词后面。
如:I am glad to see you here.I am sorry to trouble you.c.作结果状语。
如:Some of the apples are hard to reach.The room is large enough to hold 1000 people.7.与what,who,whose,when,where,how等疑问词连用,作宾语、宾语补足语、主语等。
如:I don't know what to do next.(宾语)He taught us how to use the computer.(宾语补足语)It's still a question how to get there.(主语)巩固练习:根据句意,用括号内所给动词的适当形式填空。
1.It's time for us _____(have)supper.2.Would you like_____(go)shopping with me3.It took us half an hour_____(work)out the problem.4.He is old enough_____(join)the army.5.I feel strange_____(have)a twin sister.6.I am very glad_____(meet)you here.7.They prefer_____(stay)at home rather than go out.8.We saw them_____(come)into the room just now.9.What he said made me_____(feel)sorry.10.I am sorry.I forgot_____(tell)you the news.11.His plan is_____(spend)a few days in the mountains.12.Have you got anything_____(say)13.Have you decided which one_____(choose)14.Do you know when_____(start)15.He is too weak_____(carry)the big stone.Key:1.to have;2.to go 3.to work 4.to join 5.to have 6.to meet7.to stay 8.come 9.feel 10.to tell11.to spend 12.to say13.to choose 14.to start 15.to carry。