初中动词不定式用法规纳
动词不定式用法规纳
动词不定式用法灵活多样，这一点你是否了解？有些动词或短语后面既可以接不定式又可以接动名词，其用法区别你是否已铭记于心？OK．请看——
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。
下面以动词不定式在句中的作用来予以详细说明。
1．作主语
可以直接作主语。如：To see is to believe．百闻不如一见。
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。
it作形式主语时，有三种情况：
1）常用形容词作它的表语。真正主语不定式通常有逻辑主语，一般用for短语来表示，即for sb．to do sth．（其中sb．就是to do的逻辑主语）。如：
It's important for us to keep the water clean．保持水质清洁对我们来说是很重要的。
［注意］for不能用of来代替，因为不能说：You are important．
当表语形容词表示不定式的逻辑主语的性质或特征时，则不用for，而用of（sb．to do sth．）。如：
It's very kind of you to say so．你这样说真是太好了。
（可以说：You are very kind．）
2）有时也接名词作表语。如：
It must be great fun to fly to the moon in a spaceship．乘宇宙飞船飞往月球一定很有趣。
3）it作形式主语时，还常用于“It takes（took ／will take）sb．some time（money）to do sth．”句型中。如：
①It took me more than an hour to do my homework yesterday evening．昨天晚上我做作业用了一个多小时。
②It will take us a long time to walk there．步行去那儿要花费我们很长时间。
III．动词不定式与疑问词how，what，when，where，which等连用构成不定式短语，也可作主语。如：
①How to use the computer is the question．如何使用计算机是个问题。
②Where to go has not been decided．去哪儿还没有定下来。
2．作宾语
a．want，decide ，agree等动词后面跟并且只能跟不定式。如：
We agreed to start early．
She wants to be a doctor．
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。
提示板：
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．tell，ask，want，order，teach，invite，warn，wish，help，get，wish，help等词后面常接不定式作宾补。如：
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 with？
5．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）
8.和某些形容词连用
和动词不定式经常连用的形容词有sure，ready，happy，sorry，afraid等。例如：
He's very happy to see his wife．他见到妻子非常高兴。
I'm sorry to trouble you．很抱歉打扰你了。
动词不定式作宾语补足语ABC
A．带to的不定式作宾补
a．可以用带to的不定式作宾补的动词常用的有ask，tell，order，invite，beg，get，allow，wish，want，encourage，advise，warn等。例如：
The teacher asked us to finish our homework．老师叫我们完成家庭作业。
She wanted him to sing for her friends．她想让他为她的朋友唱歌。
The policeman told the boys not to play in the street．警察告诉孩子们别在街上玩耍。
b．在动词think，believe，know，find，understand，take等之后，作宾补的不定式多由“to be ＋adj．”构成。例如：
They find the Chinese people to be happy and cheerful．他们发现中国人都很幸福快乐。
He believed the earth to be a globe．他相信大地是个球体。
c．在某些短语后也可跟带to的不定式作宾补。这类动词短语常见的有：wait for，call on，depend on，care for，long for等。例如：
The crocodile waited for the monkey to come down again．鳄鱼等着猴子再下来。
The chairman called on Mr Brown to speak．主席请布朗先生讲话。
I shouldn't care for that man to be my doctor．我不要那人给我看病。
B．不带to的不定式作宾补
动词不定式在使役动词（make，let，have）或感官动词（feel，listen to，hear，look at，see，watch，notice）之后作宾补时不定式需省去to。为了便于记忆，我们可以这样记“一感”（feel）、“二听”（listen，hear）、“三让”（let，make，have）、“四看”（look at，see，watch，notice）。例如：
Ifeltsomeone open my door．我感觉有人开了我的门。
Please listen to me sing the songagain．请听我把这首歌再唱一遍。
You can't letthe boy stand in the sun．你不能让那孩子站在太阳底下。
You must watch me carefully do everything．你必须仔细观察我所做的一切。
注意：感官动词后既可跟省略to的不定式作宾补，也可跟现在分词作宾补。其区别是：前者强调动作的全过程或经常性；后者则强调动作在进行（片断）。试比较：
I heard her sing．我听见她唱了歌。
I heard her singing．我听见她在唱歌。
C．带to或不带to的不定式作宾补
在动词help后可以跟带to的不定式作宾补，也可以跟不带to的不定式作宾补。例如：
He often helps me（to）clean the room．他经常帮助我打扫房间。
We helped him（to）mend his bike．我们帮他补自行车胎。
不定式使用有误只因用了符号to
动词不定式的一般构成形式为“to＋动词原形”，但有时我们需省去符号to，即应用不带to的动词不定式。本文拟为大家总结应用不带to的动词不定式的几种常见情况。
1．在情态动词can，may，must，dare，need等后的动词不定式不可带to。例如：
那个男孩会说一点英语。
误：That boy can to speak a little English．
说明：need可用作情态动词，后跟不带to的动词不定式，也可用作行为动词，后跟带to的动词不定式。试比较：You needn't talk so loud．你不必这么大声讲话。
You didn't need to tell him the news；it just made him sad．你无需告诉他这一消息，那只会使他悲哀。
2．在had better后应跟不带to的动词不定式。例如：
今天她最好呆在家里。误：She'd better to stay at home today．
3．在Why not．．．？后应跟不带to的动词不定式。例如：
为什么不和他一起去动物园？误：Why not to go to the zoo with him？
4．在感官动词see，hear，watch，look at，listen to，feel，notice等以及使役动词make，let，have等后跟动词不定式作宾语补足语时应省去不定式符号to。例如：
我们老师让我们把这些单词抄写十遍。
误：Our teacher made us to copy these words ten times．
注意：将此句改为被动句时，省去的不定式符号to应加上。例如上句若改为被动语态应是：
We were made to copy these words ten times by our teacher．
在动词help后跟不定式作宾语或宾语补足语时，既可带to，也可不带to。例如：
Jim helped（to）finish the work．吉姆帮着完成了那项工作。
Father helped us（to）decorate the Christmas tree．爸爸帮我们装饰了那棵圣诞树。
5．在Will（Would）you please（not）．．．？句型中，please后应跟不带to的动词不定式。例请把你的收音机音量调低点好吗？误：Will you please to turn down your radio？
6．两个或更多的动词不定式连用时，如果它们在句中的语法功能相同或相似，通常只需在第一个动词不定式中用上符号to，其余的动词不定式都不带 to。例如：
我们没有人知道什么时候开始，什么时候结束。误：None of us knows when to start and to end．
［巩固训练］做做下面中考题检测一下吧。
1．I told Bob ____ the TV since it was too late．
A．turn off B．turns off C．turning off D．to turn off（2001陕西）
2．My parents asked me ____ home earlier yesterday．
A．get B．getting C．to get D．got（2000北京朝阳区）
3．The greedy inn-keeper once made the poor hero ____ twice a day．
A．dance B．dances C．danced D．to dance（2001上海）
4．—Is Wei Fang good at singing？
—Yes，she is．We often hear ____ her in the next room．
A．to sing B．sings C．sing D．singing（2001苏州）
1．It's important you walk after supper．
A．of；to B．for；of C．to；to D．for；to
2．It's very kind you help me．
A．to；of B．of；to C．for；to D．to；to
3．To make friends with them nice．
A．is B．are C．be D．does
4． the meeting has not been discussed yet．
A．Why to hold B．Where to C．When to hold D．Which to
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初中英语语法讲解--动词不定式
）动词不定式 动词不定式：具有名词、形容词、副词的特征。其构成形式为：to +动词原形，也可以不用to，即，动词原形.to为不定式符号，无意义。否定式为：not + (to) do 不定式的句法功能： 1,作主语： To finish the work in ten minutes is very hard. 十分钟之内完成这项工作是很难的。 To lose your heart means failure. 灰心意味着失败。 动词不定式短语作主语时，常用it作形式主语，真正的主语不定式置于句后，例如上面两句可用如下形式： It is very hard to finish the work in ten minutes. 十分钟之内完成这项工作是很难的。 It means failure to lose your heart. 灰心意味着失败。 常用句式有：1)、It+be+名词+to do。如，It is one’s duty/ turn to do sth. It’s time to do sth. 2)、It takes sb.+some time+to do。 3)、It+be+形容词+(for/of) sb +to do。【注】 careless,,clever,good,foolish,honest,kind,lazy,nice,right,silly,stupid,wise,等表示人的品 质的形容词，不定式前的sb用of.作其逻辑主语。其他时,sb前要用for.如，It’s very kind/nice of you to help me. It’s very important for us to protect the environment 2．作表语： Her job is to clean the hall. 她的工作是打扫大厅。 He seems to catch a cold. 他似乎感冒了。 3．作宾语： 1),常与不定式做宾语连用的动词有：would like, want,hope,wish,plan,expect,decide,try,learn,pretend,refuse,help,agree等。如，Would you like to see a movie this evening? 2),在find,think后加不定式作宾语时，常用it代替，真正的宾语（不定式）后置，其句型为：find/think + it +形容词+ to do.例如： Marx found it important to study the situation in Russia. 马克思发现研究俄国的情况是很重要的。 3),常见的一些不带to 的动词不定式(即动词原形)：Why not do---？= Why don't you do---? had better (not) do---, would rather do---,prefer to do---, would/could/will you please do---? 4．作宾语补足语： 1），动词不定式可充当宾语补足语，如下动词： want,wish,ask,tell,order,help,advise,allow,cause,encorrage,would like,invite.
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。 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
初中英语语法精讲动词不定式用法(教案)
动词不定式用法 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。 下面以动词不定式在句中的作用来予以详细说明。 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． 点击规律：动词不定式在句中作主语时，常放在It is ＋adj +(for sb.)＋(not)to do sth句型中，表示说话人对客观事件的决断，意为：做…..是……的，it仅作形式主语，真正的主语是to do sth It is very interesting to read.读书是有趣的 It is useful to read.看书是有用的 It is healthy to run every day.每天跑步是健康的 It is a little difficulty for me to work out this question.解出这道题对我来说有点难 It is bad not to finish homework.不完成作业是糟糕的 It is bad to be late for school.迟到是糟糕的 It is+adj+of sb +(not)to do sth该句型通常表示说话人对客观事件的惊讶、兴奋、懊悔、难过等感叹情绪，与It is ＋adj +(for sb.)＋(not)to do sth的意义不同。 It is very kind of you to tell me the truth．你能告诉我事实，真是太好了 It is stupid of him to do such a silly thing．他做那件傻事，真是太笨了 It is very clever of you to work out this question. 你能解出这道题目，真是太聪明了 It is very wise of you to read this novel. 你看这本小说，真是太明智了 这个句型中用介词of而不是for的原因是这里的形容词是用来形容人的品质性格的。 类似的词有：careless，careful，clever，considerate，foolish，good，impolite，kind，naughty，nice，silly，stupid，friendly 因此区分是用It is ＋adj +(for sb.)＋(not)to do sth还是It is+adj+of sb +(not)to do sth，要
动词不定式的基本用法
动词不定式的基本用法 一、概述 动词不定式是一种非谓语动词形式，它能起名词、形容词和副词的作用，在句子中作主语、宾语、定语、表语、宾语补足语和状语。其形式如下：（主动形式） ◆一般式（not）to do 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. 我希望再见到你。_____________________________________________________ ◆完成式（not）to have done 完成时：表示的动作发生在谓语动词表示的动作之前。 He seems to have caught a cold. 很抱歉给你带来这么多的麻烦。____________________________________________ ◆进行式（not）to be doing 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. 他假装在学习。_______________________________________________________________ 二、动词不定式的语法功能 （一）作宾语 1) 动词+ 不定式 The driver failed to see the other car in time. 司机没能及时看见另一辆车。 我碰巧知道你那道问题的答案。 ____________________________________________________________________ ★常用的动词有afford, aim, appear, agree, arrange, ask, decide, bother, care, choose, come, dare, demand, desire, determine, expect, hope, fail, happen, help, learn, long（渴望）, mean, manage, offer, ought, plan, prepare, pretend, promise, refuse, seem, tend, wish… 2）动词+疑问词+ to Please show us how to do that. 请演示给我们如何去做。
初中不定式todo的用法
初中不定式todo的用法
1. 不定式的用法------1.1 不定式作主语 不定式作主语，往往用it作形式主语，真正的主语不定式放至句子的后面。 例如：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. 不用车的时候，锁车是有必要的。 It's very kind of you to help us. 他帮助我们，他真好。 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。 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： （对）To teach is to learn. （错）It is to learn to teach. （错）To teach is learning. （错）Teaching is to learn. 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。 1.1.1 不定式做主语It's for sb/It's of sb to do sth 这样的句子中，由于表语形容词性质的不同，导致了不定式逻辑主语标志用for或of 的区别。 1）for sb.句型中的形容词一般为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：例如： It's very hard for him to study two languages. 对他来说学两门外语是很难的。
(完整版)初二英语语法不定式详解及习题
初二英语语法：动词不定式详解及习题 一..不定式的构成：to+ 动词原形 二不定式的特征：不定式不能单独作谓语，没有人称和数的变化，动词不定式具有名词，形容词，和副词的特征，可以在句子中作主语，表语，宾语。宾语补足语，定语，和状语。现将用法归纳如下。 （一）、动词不定式作主语 动词不定式作主语时，可以直接放在谓语动词前面的主语位置，也可以用先行词it作形式主语，而将真正的主语(不定式)置于后面。常见的句式有： (1)It is +形容词(of sb)to do sth. (2)It is +名词(for sb)to do sth (3)It takes sb some time to do sth (4)It is +形容词(for sb)to do sth.句式 注意：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. 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。 （二）、动词不定式作宾语 1. He wants to buy some vegetables. 2. Don't forget to bringyour homework with you when you come to school. 3. He found it very difficult ______. 常接不定式作宾语的动词;want，like，agree，hope，wish，learn，begin，start，seem，decide，hate，choose，forget，remember等动词后面，可以接不定式作宾语。如果其后接形容词补足语时，则可以用it作形式宾语，而把作真正宾语的不定式放到后面 Sb + V + it （形式宾语）+ agj （形容词）+to+ V（宾语）注意无BE动词。 (三)、动词不定式作宾语补足语 Mr Li often teaches his Japanese friends to cook Chinese food. He found it very difficult to learn English well. 不定式可以用作宾语补足语。后面可以接不定式作宾语补足语的动词有：ask，teach，expect，tell，allow 等。如果其后接形容词补足语时，则可以用it作形式宾语，而把作真正宾语的不定式放到后面 Sb + V + it （形式宾语）+ agj （形容词）+to+ V（宾语）注意无be动词。 (四)、动词不定式作状语 .She went to visit her teacher. go，come，try，do / try one's best等动词或短语动词作谓语时，其后常常可以接不定式作目的状语。be +形容词+ to do sth＂结构中的不定式作状语，常表示原因或方式。 too +形容词/副词(for sb)to do…＂(太……而不能……)和＂enough (for sb) to do…＂(足以、足够……做……)结构中，不定式作结果状语。 so\such......... that........如此......以致......的用法及与其它句型的互换. A.Sb\Sth +be\ V+ so + adj\adv (a\an+adj +n)+that + can't\couldn't......... = Sb\Sth +be\ V+ too+adj\adv(for+Sb\Sth)+to+V ...... .....如此......以致....=太而.....不能.....
动词不定式用法及练习题-L105
动词不定式用法小结 动词不定式用法小结 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。 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 g ood 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： 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,
初中英语动词不定式用法梳理及练习题
初中英语动词不定式用法 动词不定式是由“不定式符号to+动词原形”构成的一种非谓语动词结构。有些动词不定式不带to，动词不定式可以作句子的主语、表语、宾语、定语、补语、状语或单独使用。不定式保留动词的某些特性，可以有自己的宾语、状语等。动词不定式和它后面的宾语、状语等一起构成短语，叫作不定式短语。 一、用作主语 直接把动词不定式置于句首的情况不多，多数情况用it作形式主语，把真正的主语——动词不定式置于句末，特别是不定式短语较长时。动词不定式作主语，谓语动词用第三人称单数形式。带疑问词的不定式短语作主语常置于句首，复合不定式结构作主语常置于句末。如： 1. I t is our duty to try our best to deal with these problems. ' head teacher said it was necessary to talk with his mother. to learn English well is important. see is to believe.(眼见为实；百闻不如一见) 二、用作表语 动词不定式作表语，常说明主语的内容、性质、特征。如： | best way is to join an English club. first thing is to listen to the teacher carefully. 三、用作宾语 1.可以接带to的动词不定式作宾语的动词主要有：要求选择同意(ask, choose, agree)，期望决定学习(expect, hope, decide, learn)，宁可假装知道(prefer, pretend, know)，希望想要愿意(wish, want, would like / love)。如： 1)We decided to talk to some students about why they go there. ~ 2)He prefers to eat white bread and rice. 3)Id love to visit Mexico. 2.动词decide, know, learn, show, teach, tell...，介词结构on...可用疑问词带to的不定式短语作宾语，但why后面的不定式不带to。如： 1)Could you please tell me where to park my car 2)It gives advice on what to do in lots of different situations. ： 3.动词feel, find, make, think等后面，可以用it作形式宾语代替真正的宾语——动词不定式，句子结构是...feel / find / make / ... it+adj. / n.+to do...。如： I find it difficult to remember everything. 4.既可接动词不定式又可接ving形式作宾语，意思差别不太大的动词有begin, start, like, love等。一般说来，动词不定式表一次、数次的具体动作、将来动作或动作的全过程，ving形式表习惯性的连续动作。但是这种区别并不很严格，特别是美国英语，即使是习惯性的动作也可以用动词不定式。如： 1) Then I started to watch Tv. 2) I am beginning to understand my parents. .
初中英语动词不定式练习及答案
动词不定式练习：（35份） 一. 根据上句意思完成下句，使两句意思相近或相同，每空一词。 1. He was so angry that he couldn’t say anything. He was too angry _______ ______ anything. 2. I don’t know when we will have the meeting. I don’t know when _______ _______ the meeting. 3. He said he would write a letter. He said he would have a letter ______ _______. 4. That you read English in the morning is very important. It is very important _____ you _____ _______ English in the morning. 5. He was so strong that he could lift the stone. （石头） He was strong _____ _____ ______ the stone. 6. His father went to Beijing for his holiday. His father went to Beijing ________ ______ his holiday. 7. They got up early so that they could get there in time. They got up early _____ ______ _______ ______ there in time. 8. His brother decided that he would buy the book. His brother decided _____ _______ the book. 9. He hopes that he can visit the Great Wall. He hopes _____ _______ the Great Wall. 10.I saw him go into the room. He was seen _____ ______ into the room. 11.We made him work five hours a day. He was made _____ ______ five hours a day. 12.Do you want to say anything for yourself? Do you have anything _____ _____ for yourself? 13.We don’t know what we shall do next. We don’t know what ____ _______ next. 14.I’m very sorry on hearing the bad news. I’m very sorry _____ _______ the bad news. 15.He stopped and had a look at me. He stopped _____ ______ a look at me. 16.I helped him with his English. I helped him _____ ______ English. 17.My father promised （许诺）that he would buy me a bike. My father promised ____ ______ me a bike. 18.The box is so heavy that I can’t carry it. The box is too heavy ______ me _______ _______. 19.“Lie down! ”the boy said to his dog. The boy ordered his dog ______ ______ down. 20.“Don’t make any noise, ”she said to me. She told me ______ _______ ________ any noise. 二. 单选： 1. This company was the first ____ portable radios as well as cassette tape recorders in the world. A. producing B. to produce C. having produced D. produced 2. The purpose of new technology is to make life easier, ____it more difficult. A .not making B. not make C .not to make D. nor to make 3. Helen had to shout ______above the sound of the music . A .making herself hear B. to make herself hear C. making herself heard D .to make herself heard
初中英语动词不定式十大考点解析(整理)
初中英语动词不定式十大考点解析 动词不定式是动词的一种非谓语形式，没有人称和数的变化，不能单独作句子的谓语。其构成形式为"to+动词原形"，to为动词不定式的符号，本身无意义。 一、动词不定式作主语 动词不定式作主语时，可以直接放在谓语动词前面的主语位置，也可以用先行词it作形式主语，而将真正的主语(不定式)置于后面。常见的句式有：(1)It is +形容词(of sb)to do sth. (2)It is +名词(for sb)to do sth. (3)It takes sb some time to do sth. (4)It is +形容词(for sb)to do sth. 句式(1)中常用nice，kind，clever，good，right，wrong，foolish，careless等形容词，与介词of 搭配，这些形容词常表述不定式逻辑主语的属性或性质; 句式(4)中常用hard，difficult，easy，important等形容词，与介词for搭配，表示不定式表示的动作、行为的性质。 1. It's our duty _________ the room every day. A. to clean B. cleaned C. clean D. cleans(甘肃省) 2. It's hard for us _________ English well. A. learn B. learns C. to learn D. learning(江西省) 3.建造这座立交桥将花费工人们一年多的时间。 It will _________ the workers over a year _________ _________ the flyover.(北京市海淀区) 4. It's very nice _________ you to get me two tickets _________ the World Cup. A. for，of B. of，for C. to，for D. of，to(安徽省) Keys：1. A 2. C 3. take，to，build 4. B 二、动词不定式作宾语 在want，like，agree，hope，wish，learn，begin，start，seem，decide，hate，choose，forget，remember等动词后面，可以接不定式作宾语。如果其后接形容词补足语时，则可以用it 作形式宾语，而把作真正宾语的不定式放到后面。 1. He wants ______ some vegetables. A. buy B. buying C. to buy D. buys (山西省) 2. Don't forget ______ your homework with you when you come to school. A. to bring B. bringing C. to take D. taking (福建省) 3. He found it very difficult ______. A. sleeping B. sleepsC. slept D. to fall asleep (湖南省) Keys：1. C 2. A 3. D