(完整版)动词不定式用法大全,推荐文档
(完整版)动词不定式用法经典例句总结,推荐文档

(语态)动词和参与此动作的主语之间关系的一个术语。
当主语是动作的发起者(或之一)时,称为主动语态;如果动词不定式的逻辑主语是这个不定式所表示的动作的承受者,不定式一般要用被动语态形式。
如:It's a great honour to be invited to Mary's birthday party.(不定式作主语是被动语态to be invited是被邀请)It was impossible for lost time to be made up.(不定式作主语)I wish to be sent to work in the country.(不定式作宾语)Can you tell me which is the car to be repaired?(不定式作定语)He went to the hospital to be examined.(不定式作状语)My work is to clean the room every day.(不定式作表语)在There be结构中,修饰主语的不定式可用被动,也可用主动。
如:There are still many things to take care of (to be taken care of).但有时两种形式表达的意思不同,如:There is nothing to do now.( We have nothing to do now.) There is nothing to be done now.(We can do nothing now.)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 sthHe 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。
(完整版)非谓语动词-不定式

非谓语动词—-动词不定式1)I plan to attend the meeting.我计划参加这次会议.2)I am sorry to have kept you waiting。
很抱歉让你久等了。
3)They are said to be working hard.据说他们工作得很努力.4)He is said to have been working in that factory for twelve years.据说他已在那家工厂工作12年了。
5)These clothes are to be washed as soon as possible。
6)He is disappointed not to go swimming this afternoon。
(二)用法1. To help each other is good。
It is good to help each other_____________________________________________2。
My job is to drive them to the power station every day。
Our plan is to set up another middle school for the peasants' children. To see is to believe.______________________________________________3. She wishes to be a musician。
I am determined to give up smokingI don’t think it right to do it that way._____________________________________________4。
Tell the children to play outside。
(完整版)不定式的用法

To talk with himis a great pleasure.一般情况下,不定式(短语) 作主语时,通常用形式主语“it” 代替.It is a great pleasure to talk with him.但是,用不定式作主语的句子中还有一个不定式作表语时,不能用It is… to… 的句型。
另外,这样的句子,不能用动名词作表语。
例如:Tosee is tobelieve. ( 主表一致)不定式作表语时常常表将来My work is to clean the room every day. 我的工作是每天清扫房间。
His dreamis tobe a doctor.他的梦想是成为一名医生。
不定式作宾语的动词常见的有: want; hope; wish; ask; choose; decide; manage; offer; promise; refuse; seek; pretend; learn; afford; need…不定式作宾语的形容词常见的有: ready; eager; sure; glad; anxious; sorry; afraid; free; pleased; willing 等此外还要注意一些特殊疑问词 +不定式的形式(如: what todo, where togo ),作tell, ask, know, show 等动词的宾语。
I don’t know what to do.I asked him to come to my office.注意:1) 有些有动词+宾语+不定式的结构,不定式的动词往往 be ,不定式一般可以省去。
例如:consider; find; believe; think; declare(声称); appoint; guess; fancy (设想); judge; imagine; know例如:We believe him(to be) guilty. We know him to be a fool.我们相信他是有罪的。
动词不定式的基本用法归纳

往往把不定式短语放在宾补之后,而用it作形式 宾语。句型为“主语+find (make,feel, think, believe, consider, etc) +it+形容词/名词+to do sth”。
1.There was nothing to do in the evening but __A___. A.read B.to read C.reading D.is reading
2.There is nothing we can do but wait__D____. A. as calm as possible B. as possible as we can
to ___________ if he wants to win.
句型:think/ consider/believe/ find/make/feel it + adj./n.+ to do
C.动词不定式还可以用作介词宾语,但仅限于介词 except和but(除了)。 1) They did nothing except_______( work). 2) There is no choice but _________( wait).
(2). He pretended to be sleeping.
(进行式表示在谓语动词发生的同时,不定式的动作 也正在进行)
(3).She pretended to have known it before.
(完成式表示动作发生在谓语动作之前)
(4).We’re happy to have been working with you.(完成进行式表示谓语动作发生之前,不定式的
非谓语动词(不定式)的用法

非谓语动词(不定式)的用法非谓语动词(动词不定式的具体用法)动词不定式有三大语法功能:1.充当名词,可作主语、宾语或表语;2.充当形容词,可作后置定语或宾语补足语;3.充当副词,可作状语。
构成不定式需要使用“to+动词原形”的形式,否定式则在不定式符号之前加入否定词“not/never”。
一、不定式作主语的用法不定式作主语的特点是具有名词的功能,可表示意愿或未完成的事情,谓语动词要用单数。
常见的此类名词有:plan(计划)、purpose(目的)、attempt(企图)、goal(目标)、aim(目的)、n(雄心)、dream(梦想)、ideal(理想)、wish(希望/愿望)、hope(希望)、n(决定)、n(决定)、proposal(提议/建议)等。
为了避免主语过长,不定式短语可放在句末,用形式主语“it”代替原来的主语位置,不定式则成为真正的主语。
例如:___.(赢得冠军是我的雄心。
)To master a foreign language is necessary.(掌握一门外语是有必要的。
)To e President of the United States used to be my goal.(过去我的梦想是成为美国总统。
)Speaking perfect English is always my dream.(说一口流利的英语一直是我的梦想。
)It is ___.(保护环境是有必要的。
)There are two special ___:1) It is + adj + of sb + to do sth.2) It is + adj + for sb + to do sth.___ characteristics and differences are:1) If ___ characteristics or traits。
the logical subject of the ___ "of."Examples:It is very affable of you to help me。
动词不定式时态的用法

动词不定式时态的用法动词不定式是一种非谓语动词形式,由“to +动词原形”构成。
它具有名词、形容词和副词的特征,在句子中可以充当主语、宾语、定语、状语、宾语补足语等成分。
动词不定式的时态有一般式、进行式、完成式和完成进行式,下面我们来详细了解一下它们的用法。
一、一般式(to do)动词不定式的一般式表示的动作通常与谓语动词的动作同时发生或在其后发生。
1、表示将来的动作例如:“I have a lot of work to do tomorrow”(明天我有很多工作要做。
)这里的“to do”表示将来要做的工作。
2、用于某些动词后作宾语常见的这类动词有:want, hope, wish, decide, plan, expect 等。
比如:“She wants to buy a new dress”(她想买一件新裙子。
)3、作定语“There is nothing to worry about”(没什么可担心的。
)“to worry about”修饰“nothing”,表示“可担心的事情”。
4、目的状语“We come here to learn English”(我们来这里是为了学英语。
)“to learn English”表示来这里的目的。
二、进行式(to be doing)动词不定式的进行式表示的动作与谓语动词的动作同时进行。
例如:“He seems to be waiting for someone”(他似乎在等什么人。
)“to be waiting”与“seems”同时发生。
这种形式用得相对较少,通常在某些特定的语境中使用,以强调动作正在进行。
三、完成式(to have done)动词不定式的完成式表示的动作发生在谓语动词之前。
1、表示过去未曾实现的愿望、打算或计划比如:“I intended to have written to you, but I was too busy”(我本打算给你写信的,但我太忙了。
(完整版)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在中学英语中应用非常广泛,一方面在句中可起名词、形容词或副词的作用,同时也可在句中作主语、宾语、定语、状语和宾语补足语。
接下来为大家提供了以下:动词不定式的用法总结一动词不定式的形式一般是to +动词原形,但to有时要省去。
而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。
现就以下几方面介绍如下。
一、不定式结构1. 带to的不定式结构能直接跟带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。
如:I want to go to the movies with you.我想跟你一起去看电影。
Don’t forget to turn off the light before you leave.在你离开之前别忘了关灯。
注意: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.。
如:Dave told me not to wake up Kate.大卫告诉我别叫醒凯特。
2. 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.。
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。
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。
(完整版)非谓语动词(不定式)的用法

非谓语动词(动词不定式的具体用法)Step1. 动词不定式的3大语法功能(1)不定式可充当主语,宾语,表语,具有名词的功能.(2)不定式可充当后置定语或宾语补足语,具有形容词的功能.(3)不定式可充当状语,具有副词的功能..Step2.不定式的构成,即:“不定式符号to+动词原形”.Step3. 不定式的否定式,否定词一定放在不定式符号之前,即:“not/never+不定式+动词原形.一,不定式作主语的用法.特点:“to+动词原形”所形成的形式具有名词功能.名词可在句中充当主语,宾语或者表语,同理,不定式也有相同的功能.1. 不定式作主语的特点:(1)可以表示一种意愿或未完成的事.(2)谓语动词用单数.E g: To win the championship is my ambition.主语系动词表语译文:赢得冠军是我的雄心.E g: To master a foreign language is necessary.主语系动词表语译文:掌握一门外语是有必要的.E g: To become President of the United States used to be my goal.主语谓语宾语译文:过去我的梦想是成为美国总统2. 不定式作主语时,be动词之后的表语若是名词,一定是表示意愿,目的,企图等名词,用来表示尚未完成的事情.常见的此类名词有:plan(计划), purpose(目的),attempt(企图),goal(目标), aim(目的), ambition(雄心),dream(梦想), ideal(理想), wish(希望/愿望),hope(希望), decision(决定),determination (决定),proposal(提议/建议).E g: To speak perfect English is always my dream主语系动词表语译文:说一口流利的英语一直是我的梦想.3. 由于不定式短语作主语,显得主语过长,为了避免头重脚轻,达到句子平衡,把不定式短语放在句末,在原来主语的位置上“it”代替,形式上占一个主语的位置,称之为形式主语,不定式称为真正的主语.E g: It is necessary to protect the environment.形式主语系动词表语不定式作真正主语译文:保护环境是有必要的.4. 不定式作主语的两种特殊结构(1)句型:It is +adj(形容词)+of sb +to do sth.(2) 句型:It is +adj(形容词)+for sb +to do sth.特点和区别:(1)若形容词表示人的本质特征,特性,就用“of”引出的不定式的逻辑主语.A:表示人的本质特征和特性的形容词有:“good; nice; clever; wise; foolish; silly; stupid; rude; (im)polite , careless; careful; affable.E g: It is very affable of you to help me.译文:你真好帮助我.E g: It is very careless of you to lose your wallet.译文:你真粗心大意把钱包丢了.(2) 若形容词表示的不是逻辑主语的特性,而是描述对逻辑主语所做的事情,就用介词“for”,B:常见的此类形容词有:“easy; hard; difficult; heavy; necessary; impossible; important.E g: It is impossible for me to get to the destination on time inan hour.译文:一个小时之内按时达到目的地对我来说是不可能的.E g: It is very difficult for me to work out the math problem.译文:解决这个数学问题对我来说太难了.(3) 形容词表示人的特性的句子可转化成一个不定式作状语的句子,而后者则不能.E g: It is very kind of you to help me with my English可转化为一个不定式作状语的句子= You are very kind tohelp me with my English.二,不定式作宾语的用法.(1)作及物动词的宾语,该及物动词均为表示意愿,企图的动词,表示具体的或者特定的动作,或者是将来的动作.常见的动词如下:want(要); wish(希望); hope(希望); desire (欲望/渴望); intend意图;try(设法); determine(决定); decide(决定); attempt(企图); endeavor(努力); plan(计划); like(喜欢); love(喜欢); expect(期望/盼望);pretend(假装); afford(承担得起); manage(设法); prepare(准备); long (盼望); arrange(安排); promise(答应/许诺); learn(学会);dare(敢);agree(同意);start/begin(开始); fail(失败); refuse(拒绝); 等.E g: I want to take a trip abroad next year.主语及物动词不定式作宾语时间状语译文:明年我要出国旅游.E g: I intend to visit you tomorrow主语及物动词不定式作宾语时间状语译文:我打算明天去拜访你.E g: He tried to kill two birds with one stone.译文:他设法一箭双雕.E g: I expect to get a raise.译文:我渴望获得加薪.E g: I can’t afford to buy a new car.主语及物动词动词不定式作宾语译文:我买不起新车.(2)若作宾语的不定式太长,如果其后还有形容词或名词担当宾语补足语,常用“it”作形式宾语,把不定式短语作真正的宾语后置.基本句式:“主语+及物动词+it(形式宾语)+名词/形容词(宾语补足语)+to+动词原形(真正宾语)”.常见的此类动词有“find(发现); think(认为); believe(相信); consider(认为); deem(认为); feel(觉得); make(使)E g: I think it useful to learn English well.主语及物动词形式宾语宾补不定式作真正的宾语译文:我认为学好英语是很有用的.E g: I deem it necessary to apologize to others.主语及物动词形式宾语宾补不定式作真正的宾语译文:我认为向别人道歉是有必要的.E g: I deem it an honor for me to give this speech.译文:能在这里进行演讲我认为这是我的荣幸.E g: We found it impossible to finish the project in a month.主语及物动词形式宾语宾补不定式作真正的宾语译文:我发现一个月之内完成这个项目是不可能的.E g: I make it a rule to get up early.说明:Make it a rule to+v 表示“把--------当作常例/习惯于-------------”.译文:我习惯早起.E g: The teacher made it a rule to speak only English in class.主语及物动词形式宾语宾补不定式作真正的宾语地点状语.译文:老师规定在课堂上这能讲英语.E g: I felt it stupid for him to talk like that.译文:我觉得他这样讲话挺愚蠢的.(3)疑问代词:“what ; which; whom +动词不定式(to+do)”共同作及物动词的宾语的用法特点:不定式后面的动词一定为及物动词,疑问单词“what ; which; whom”及物动词或者介词的宾语.E g: I can’t decide which one to buy.主语及物动词共同作宾语译文:我决定不了买哪一个.know what to do next.E g: I don’t译文:我不知道下一步该怎么办.E g: I can’t decide whom to turn to for help.译文:我决定不了向谁求救.E g: I hardly know what to say to you.译文:我简直不知道该对你说什么.(4)疑问代词:“what ; which; whom +动词不定式(to+do)”共同作及物动词直接宾语的用法E g: Would you please tell me which course to take?主语及物动词间接宾语直接宾语译文:你能告诉我应该选哪门课程吗?(5)疑问副词:“when; where; how;whether+动词不定式(to+do)”共同作及物动词宾语的用法特点:(1)不定式后面的动词可以为不及物动词.(2)不定式后面的动词也可为及物动词,且后面有宾语.E g: He patiently showed me how to operate the computer.主语状语及物动词间接宾语直接宾语译文:他耐心地教我怎么使用电脑.tell me when to start.E g: He didn’t译文:他并没有告诉我什么时候出发.know whether to go or stay.E g: I don’t译文:我不知道是走还是留.E g: I just wonder where to spend the weekend.译文:我只是想知道该去哪里度过周末.E g: Life is long if you know how to live it.译文:若知如何使用,生命就会长久.三,不定式作表语的用法.特点:(1)主语均为表示:“意愿”或者“企图”的名词.(2)不定式作表语可换作主语.E g: His only wish at present is to sleep.主语时间状语系动词动词不定式作表语译文:他此刻唯一的愿望就是去睡觉.可转化为:To sleep is his only wish at present.E g: His goal is simply to become an excellent English teacher.主语系动词状语动词不定式作表语译文:他的目标就是当一名优秀的英语教师.E g: His resolution is to become a great scientist.主语系动词动词不定式作表语译文:他的志愿时当一名伟大的科学家.E g: My dream is to become a successful businessman.译文:我的愿望是成为一名成功的商人.E g: The problem is to find a solution.译文:问题是得找出一个解决办法.E g: Shaking one’s fist is to show one’s determination.译文:挥拳头是显示一个人的决心.E g: The purpose of yelling English is to build up your confidence.译文:大喊英语的目的是建立你的自信心.不定式作表语的2种特殊情况(1)动词不定式作主语,也可作be动词之后的表语,主语和表语的动词形式一定要对称.E g: To see is to believe不定式作主语系动词不定式作表语译文:眼见为实E g: To love her this way is to worship her.不定式作主语方式状语系动词不定式作表语译文:这样爱他就等于崇拜她.(2)在下列句型中,be动词之后的to可省略,接动词原形作表语.E g: All you have to do is (to) take a good rest.主语系动词表语译文:你所要做的就是要好好的休息.E g: All I can do is (to) wait主语系动词表语译文:我所能做的就是等待.E g:What you should do is simply (to) apologize to him主语系动词状语表语译文:你应该做的事就是向他道歉.四,不定式作后置定语的用法.相当于形容词的功能.特点:(1)动词不定式作定语时一定要放在所修饰词的后面,作后置定语.(2)动词不定式与所修饰的名词之间有动宾关系.(3)不定式后面的动词为及物动词,若为不及物动词,一定要加上相应的介词.E g: I have a pile of homework to do tonight.主语及物动词宾语不定式作后置定语时间状语.译文:今晚我有一大堆的作业要做.不定式作后置定语的特殊用法(1)不定式作后置定语可以等于关系代词作主语所引导的定语从句.E g: I have no friend to advise me.主语谓语宾语不定式作后置定语等价于:I have no friend who can advise me.译文:我没有朋友可以给我忠告.(2)不定式作后置定语可以等于关系代词作宾语所引导的定语从句.E g: I have no one to talk to主语谓语宾语不定式作后置定语等价于:I have no one whom I can talk to.译文:我没有人可以交谈.E g: There are many sights to see here.等价于:There are many sights which we can see here.译文:这里有很多的风景可看.(3)主动的不定式和被动不定式的区别. A: 如果句子的主语是要做那件事的人,就用主动形式.B: 如果句子的主语是要做的动作(或者是接受动作的人或事),就用被动式.E g: I have two coats to wash.E g: Two coats are to be washed.(4) 在:“there be ”结构中的不定式可用主动式,也可用被动式,且意思一样.E g: There is an important thing to do tonight= There is an important thing to be done tonight.(5)不定式修饰序数词一定要放在其后.A:Li was the first to arrive.B: Really? That’s not like him. He’s always the last one to arrive.A: 李是第一个到的.B: 真的吗?那可不像他的作风,他总是最后一个到.五,不定式作状语的用法.特点:不定式作状语多放在被修饰的动词,副词,和形容词之后.注意其逻辑主语必须和句子的主语保持一致.在句中充当状语,表示目的;结果或原因.(1)不定式修饰动词的用法,一定置于该动词之后.E g: We should do whatever we can to save them.主语及物动词宾语从句不定式作目的状语的用法译文:我们应该做些什么才能挽救他们呢.(2) 不定式修饰动词作目的状语的用法.特点:不定式作目的状语,通常置于动词之后,也可置于句首,用逗号与主语隔开.E g: You should work very hard to win the award.主语谓语状语不定式作目的状语等价于:To win the award, you should work very hard译文:为了要赢得这个奖项,你应该努力奋斗.E g: I’ll do everything I can to help you.(目的)译文:我会竭尽全力帮你的.E g: You’re really very kind to say so.(原因)译文:你这么说真是太好了.还有类似不定式短语有:(1)in order to+动词原形..即可放在句首,也可句末.(2)so as to+动词原形.只能放在句末.(3)only to;(4) too-------to 太-------而不能(3)with an eye to +动名词. 只能放在句中. (4)with a view to +动名词. 只能放在句中.E g: He got up early in order to catch the school bus.主语谓语不定式作目的状语译文:他早起的目的就是能搭上校车.(3)不定式修饰形容词,一般置于该形容词之后.特点:一般表示一种结果.E g: He is able to do amazing things.主语系动词表语不定式作结果的用法译文:他能成就伟业.E g: He is apt to lie to me .主语系动词表语不定式作结果的用法.译文:他爱向我撒谎.E g: She was prepared to face the music.译文:她准备好面对后果.疯狂操练:I’m determined to conquer English. 我决心攻克英文I’m determined to master pronunciation. 我决心攻克发音.I’m determined to speak good English. 我决心说好英语.I’m determined to become a grammar king. 我决心成为语法大王I’m determined to command a lot of words. 我决心掌握大量词汇.I’m determined to write beautiful articles. 我决心写出漂亮文章.I’m determined to communicate with the world. 我决心与全世界沟通.(4)不定式修饰副词,一定置于该副词之后. 特点:一般表示一种结果.E g: He is old enough to go swimming alone.主语系动词表语状语(副词)不定式作结果的用法. 译文:他长大了,足以单独一个人去游泳.五,不定式作宾语补足语的用法.(1)具有使役动词意味的及物动词,加上宾语之后,要用不定式短语作宾语补足语.此类动词有:1) cause/get 促使-----------;2) lead引导--------说明:‘加上宾语之后,可接to引导的不定式短语,但此时to视为介词,接动名词作其宾语”;3) allow/permit允许------4)advise 劝告---------5)persuade说服----------6)enable使能够----------7)tell告诉-------8)beg/ask请求--------9)order命令---------10)want/wish/expect/intend期望---------11)force 迫使----------------.12)encourage鼓励-------.E g: The sad story caused him to cry.主语及物动词宾语不定式作宾语补足语译文:这个悲惨的故事使他哭了.E g: His timely help enabled me to finish the project in advance.主语及物动词宾语不定式作宾补时间状语译文:他及时的帮助使我能提前完成这个项目.allow me to smoke in the office.E g: They don’t主语及物动词宾语不定式作宾补地点状语译文:他们不允许我在办公室里吸烟.E g: I ask my students to yell English every morning.主语及物动词宾语不定式作宾补时间状语译文:我要求我的学生每天早上都大喊英语.E g: My parents want me to become a great lawyer in thefuture.译文:我的父母希望我将来成为一位很棒的律师.E g: The boss forces his staff to work like a dog for him.译文:老板强迫员工为他拼命干活.E g: My teacher encouraged me to try again.译文:我的老师鼓励我再试一次.(2)使役动词或者是感官动词,动词不定式作宾语补足语“to”要省略.巧记不定式作宾补省略“to”的两大规则A:“注意让‘买客’听听看看这块表有啥感觉不带“土”B: 五看(see; watch; notice; observe; look at); 三让(let; make; have);两听(hear; listen to); 一感觉(feel); 一发现(find); 半个帮(help).1)感官动词,宾语补足语接原型动词,表示已发生的事实..若出现在被动语态中,“to”要还原.E g: I noticed a thief slip into my room just now.主语及物动词宾语省略不定式原型动词作宾补时间状语译文:我刚才注意一个贼溜进我的房间了.E g: I never heard him speak English.译文:我从未听过他说英语.E g: The man was seen to leave the accident.(被动语态中不定式要还原)译文:有人看见他离开事故现场.2)使役动词(make/ let/ have)的具体用法.{1}“make”的常见用法. 若出现被动语态时“to”要还原.※make +宾语+宾补(形容词)E g: The news made me happy.主语及物动词宾语形容词从当宾语补足语.译文:这则消息使我很开心.※make+宾语+宾补(省略“to”的动词原形).疯狂操练 E g: My mother made me walk the dog. My father made me sweep the floor. My grandmother made me wash the dishes. My grandfather made me buy him cigarettes. Everyonein me family made me do something yesterday. I really enjoy helping other people.译文:我妈妈让我去遛狗.我爸爸让我擦地板.我奶奶让我洗碗.我爷爷让我给他买烟.昨天家里的所有人都让我干活了.我真的很乐意帮助他人.E g: These workers are made to work at least 18 hours each day.译文:这些工人被迫每天至少工作18小时.{2}“let”的用法. 很少出现被动语态中.※Let’s +动词原形. 让我们一起-------------------------E g: Let’s have dinner together tonight. 译文:让我们今晚一起吃晚饭.※Let us +动词原形. 让我们一起------------E g: Let us help Tom clean the room. 译文:让我们大家一起帮助汤姆打扫房间.※Let sb++动词原形. 让某人做某事.E g: Let me help you. 译文:让我来帮助你. {3}“have”的用法. 很少出现被动语态中.※have +宾语(人/)+宾补(过去分词充当)表示:请某人做某事※have +宾语(物/)+宾补(过去分词充当)表示:可以用来主语的遭遇或经历,并不是故意让某事发生的.特点:1) 作宾语补足语的动词与宾语之间是被动关系.2)该动作常不属于主语的动作.E g: I had my hair cut yesterday主语使役动词宾语过去分词作宾补时间状语译文:我昨天理的发.E g: Please have the boy taken to the station.译文:请找人把这男孩带到E g: The old man had his leg broken when he fell off the bike.译文:那老人从自行车上摔下来时把腿摔断了.※have+宾语(人/)+宾补(动词原形)表示“让某人做某事”E g: The director had his assistant pick up some hot dogs for the meeting.译文:主管让他的助理为这次会议准备一些热狗.※have+宾语(人/物)+宾补(动名词)表示:“让某人或某事不停地,或者一次又一次地进行某一动作.E g: He had us laughing all through. 译文:整顿饭期间他让我们笑个不停.六,不定式充当独立主格的用法.特点:不定式可以在句中充当独立成分,用来说明说话人的态度,对全句进行解释常见的有:“to be frank; to be honest; to tell the truth; to be blunt”等E g: To tell the truth, I have no money with me today.译文:我今天一分钱也没有带.E g: To be frank, you need to lose weight.译文:坦白说,你真的需要减肥.E g: To be blunt, that’s a stupid idea.译文:老实说,这想法真愚蠢.七,原型不定式的特殊结构.下列为与原型不定式连用的特殊结构.这些结构经常出现在各类英语考试中,务必要牢记.1): do nothing but +动词原形. 除了-----,无所事事.E g: He did nothing but eat all day.译文:他整天什么也不做,只是吃.分析步骤如下:第一步:句中的but 可视为并列连词,连接对等且形态相同的词类did,即He did nothing but did----------.第二步:我们知道do/does/did用于肯定句中,可视为强调性的助动词,之后要接动词原形.试比较:未强调前: He works hard. 他用功. 强调后:He does work hard. 他的确很用功.第三步:因此,在He did nothing but did----------中,did之后要接动词原形.即He did nothing but did eat all day.第四步:并列连词but之后相同的词类可以省略.本句中第一个did为不及物动词的一半过去时,而第二个did则为强调性的助动词,虽然性质不一,但外形相同,故第二个did可省略,即:“He did nothing but eat all day”.2): Choose/expect/want/desire nothing but to+动词原形.E g: He wanted nothing but to sleep. 译文:他什么都不要,只想睡觉.3): I have no choice but to+动词原形. 除了-------我别无选择.E g: I have no choice but to wait for the result.译文:除了等待结果我别无选择.4): be interested in nothing but+动名词/名词. 除了-----对什么也不感兴趣.E g: He is interested in nothing but singing.译文:他除了唱歌外,对什么都不感兴趣.5)enjoy nothing but+动名词/名词. 除了-----------对什么都不喜欢.E g: I enjoy nothing but dancing.译文:我除了跳舞外什么都不喜欢.6)cannot but+动词原形=cannot help/stop/ resist+动名词=cannot help but+动词原形.意思为:“不得不/忍不住-----------------”.E g: When I heard the story, I couldn’tb ut laugh/I couldn’thelp but laugh. 译文:我听到这个故help laughing/I couldn’t事,忍不住笑了出来.八,在下列含有to的动词短语中to 是介词的有,注意:“介词后面要接名词、宾格代词、动名词”如下:“1)be used to----------习惯于-------; 2)devote--------to献身于-------;3)get down to-------开始、着手-------;4)lookforward to-----期望、期盼;5)object to-----反对;6)be opposed to-----反对; 7)pay attention to-------注意、关注; 8)stick to---------;9)apply------to集中精力、专注坚持10)accustom-------to使------习惯于;11)help oneself to ------请随便------”等.E g: You should pay more attention to your health.译文:你应该多加注意身体.疯狂操练:You should pay more attention to your pronunciation. 你要多留意你的发音.You should pay more attention to your kids. 你要多留心你的孩子.You should pay more attention to your teeth. 你要多注意保护牙齿.You should pay more attention to your family.你要多关心家人. You should pay more attention to your schoolwork.你要多花心思在学业上.You should pay more attention to our environment.我们应该多关注保护环境.E g: She applied herself to learning English.译文:她刻苦学习英语.E g: You must accustom yourself to getting up early译文:你必须习惯早起.E g: I’ve been looking forward to hearing from you.译文:我一直期望收到你的来信.疯狂操练:Help yourself to something to drink. 你自己随便喝点什么,别客气.Help yourself to something to eat.你自己随便吃点什么,别客气.Make yourself at home. 别拘束.Sit down and relax for a while.坐下来放松一下.My home is your home.我的家就是你的家.。
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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。
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?*如果and连接两个动词不定式,第二个动词不定式一般省“to”例:(1)He wants to go and have a swim with us. 他想和我们一起去游泳(2)若作宾语的动词不定式(短语)很长,可用it作形式宾语。
I find it interesting to learn English with you. 我觉得和你一起学英语很有趣。
He found it hard to catch up with others.他觉得赶上别人很困难。
四. 作宾语补足语。
例如:The teacher asked us to read English for half an hour in the morning.老师让我们早晨读半小时英语。
The teacher often tells Jim not to spend too much time playing computer games.老师常告诉Jim不要花太多时间玩电脑游戏。
Please let me help you.让我来帮助你。
动词不定式作宾语补足语,表示宾语所做的动作,可以用动词不定式作宾语补足语的动词有:tell, ask, want, like, invite, encourage, help等。
但在let, make, see, watch, hear, feel, notice, have等感官听觉动词或使役动词后面作宾语补足语的动词不定式一般要省略动词不定式符号“to”,可以归纳为以下三种句式:1.不可以省to的不定式作宾语补足语:tell /ask / want / would like / wish / like / invite /encourage /teach sb. to do sth.例:The teacher told us to come earlier tomorrow.I want you to go now. 我想让你现在就走。
Her parents wish her to be a teacher.她父母亲希望她当老师。
2.省“to”的不定式作宾语补足语:Let / make / have sb. do sth.Let the boy go out now. 让那个男孩出去。
The boy made the baby cry. 男孩弄哭了这个小孩。
see / watch / hear / notice / feel sb. do sth.I saw the students play basketball on the playground yesterday.昨天我看见学生们在操场打篮球。
I often hear the girl sing in the next room. 我经常听到女孩在隔壁唱歌。
3.可省可不省的:help sb. (to)do sth.I often help my mother (to)do housework.我经常帮妈妈做家务。
*动词不定式的否定式是直接在to之前加not. 例:(1)Tell them not to play football in the street.告诉他们不要在街道上踢足球。
(2)省to的动词不定式的否定式是直接在动词前面加not. 例:Let the boy not go. 让那个男孩别走。
(3)如果将主动语态变为被动语态时,作宾语补足语的动词不定式变为主语补足语,动词不定式则不省“to”,即原来省的再加上,例:The boy made the baby cry.The baby was made to cry by the boy.那个孩子被男孩弄哭了。
五. 动词不定式作定语动词不定式作定语常用来修饰名词或不定代词,放于所修饰的词后,为后置定语。
例:Who was the first one to arrive? 谁第一个到的?She has no paper to write on? 她没有纸写字?The best way to learn English is to use it. 学英语最好的方法是使用它。
When is the best time to plant vegetables?什么时候是种植蔬菜的最好时间?Do you have something to drink? 你这有喝的吗?*动词不定式(短语)作定语修饰名词时,与其所修饰的词具有一种动宾关系,如果不定式中的动词为不及物动词时,其后应加上一个含义上所需要的介词。
例:I have no chair to sit on.我没有椅子坐。
He has no house to live in.他没有房子住。
六. 动词不定式作目的状语:动词不定式作目的状语常用在go, come, hurry等不及物动词后,表目的。
He went to see his sister yesterday.他昨天去看妹妹了。
They got up early to catch the early bus.他们早起去赶早班车。
有时可以把不定式(短语)提前,放于句首,表示强调目的。
例:To early English quickly and well, he went to England.为了更快更好地学英语,他去了英国。
不定式做状语,可表示动作的目的、结果、原因、条件和方式。
A. 表目的表目的时,不定式可放在句子的前面也可放在句子的末尾。
但在句子前面时,不定式常与句子用逗号隔开;而在句子末尾时一般不用逗号隔开。
如:To get there on time, we set out at five in the morning. 为了按时到达那儿,我们早晨五点就出发了。
He goes there to enjoy the fresh air. 他去那儿享受那儿的新鲜空气。
比较:to do, in order to do, so as to do都可表示目的,但to do, in order to do的位置既可在句首,又可在句末;而so as to do只能在句末---In order to build a house, he bought some wood and steel yesterday.—He bought some wood and steel yesterday in order to build a house.---He bought some wood and steel yesterday so as to build a house. 为了建房,昨天他买来了木料和钢材。
B. 表结果不定式在下列结构中表示谓语动作的结果,不定式的位置一般在句子末尾。
(1) 表示终结性的动词find, see, hear, learn, discover的不定式,常表示出乎意料的结果,并且,不定式前常有never, only等副词修饰。
如:I hurried to the railway station yesterday, (only) to find that the train had left. 昨天我急急忙忙赶到火车站时,发现火车已经开走了。
I went to the classroom, to discover it empty. 我走到教室,结果发现教室是空的。
(2) 在“so + adj. / adv. + as + to do”中。
如:The scenery is so beautiful as to attract many people here every year. 景色非常美,每年都要吸引很多人来这里。
(3) 在“adj. / adv. + enough + to do”中。
如:He ran fast enough to catch up with Li Lei. 他跑得很快,结果赶上了李蕾。