动词不定式的基本用法归纳

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初中英语知识点归纳动词不定式的基本用法

初中英语知识点归纳动词不定式的基本用法

初中英语知识点归纳动词不定式的基本用法动词不定式是英语中的一种非谓语动词形式,通常由动词原形加上to 构成。

它具有名词、形容词和副词的性质,可以在句子中充当主语、宾语、表语和补语等成分。

本文将对动词不定式的基本用法进行归纳总结。

一、动词不定式作主语动词不定式作主语时,常常位于句首,具有强调的作用。

常见的句型有:1. To learn English well is my goal.学好英语是我的目标。

2. To drink eight glasses of water a day is beneficial to our health.每天喝八杯水对我们的健康有益。

二、动词不定式作宾语动词不定式可以作及物动词的宾语,常常跟在动词后面。

常见的动词有:1. want, hope, expect, plan, decide, promise, agree 等。

例如:I want to go to the park this weekend.我想这个周末去公园。

2. advise, encourage, allow, enable, force, teach 等。

例如:His teacher encourages him to learn new words every day.他的老师鼓励他每天学习新单词。

三、动词不定式作表语动词不定式可以作表语,说明主语的身份、职业、愿望等。

常见的句型有:1. His dream is to become a doctor.他的梦想是成为一名医生。

2. Our aim is to win the game.我们的目标是赢得比赛。

四、动词不定式作补语动词不定式可以作及物动词的宾语补语和形容词的补足语。

常见的动词有:1. make, let, see, hear, watch, feel, notice, observe 等。

例如:She made her son do his homework.她让她的儿子做作业。

动词不定式的用法归纳

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.

高中英语动词不定式的基本用法

高中英语动词不定式的基本用法

高中英语动词不定式的基本用法1. 什么是动词不定式?动词不定式是动词的一种形式,在句中充当名词、形容词或副词。

它通常由“to”加上动词原形构成。

例如:to eat、to sleep、to study。

2. 动词不定式作名词动词不定式作名词时,可以做主语、宾语、表语或宾补。

- 作主语:To travel is my dream.- 作宾语:I want to learn English.- 作宾补:She asked me to help her.3. 动词不定式作形容词动词不定式作形容词时,通常修饰名词或代词。

- 修饰名词:I have a book to read.- 修饰代词:There is nothing to worry about.4. 动词不定式作副词动词不定式作副词时,通常修饰动词、形容词或副词。

- 修饰动词:She went to the park to play.- 修饰形容词:He is too tired to continue.- 修饰副词:She runs fast to catch the bus.5. 动词不定式与其他句型的搭配动词不定式与其他句型可以有不同的搭配方式。

- 动词不定式与情态动词搭配:I can't wait to see you.- 动词不定式与感官动词搭配:I heard him sing.- 动词不定式与使役动词搭配:She made me clean the room.6. 动词不定式的否定形式动词不定式的否定形式是在“to”前加“not”,构成“not to + 动词原形”。

- I decided not to go to the party.7. 动词不定式的完成式动词不定式的完成式是在“to”前加“have”,再加动词的过去分词形式。

- I'm glad to have met you.以上就是关于高中英语动词不定式的基本用法的完整版,希望能对您有所帮助。

动词不定式的形式和用法

动词不定式的形式和用法

动词不定式的形式和用法动词不定式是英语中一种特殊的动词形式,它有自己的形式和用法。

本文将详细介绍动词不定式的形式和用法。

一、动词不定式的形式1. 基本形式:动词不定式的基本形式是“to + 动词原形”,比如:“to go”、“to eat”等。

动词不定式的基本形式没有时态和人称的变化。

2. 完成形式:动词不定式的完成形式是“to have + 动词过去分词”,例如:“to have gone”、“to have eaten”等。

动词不定式的完成形式表示在动词不定式动作之前已经发生或完成的动作。

3. 被动形式:动词不定式的被动形式是“to be + 动词过去分词”,例如:“to be gone”、“to be eaten”等。

动词不定式的被动形式表示动作的接受者是动作的执行者。

二、动词不定式的用法1. 作主语:动词不定式可以作为句子的主语,例如:“To learn English is important for students.”(学习英语对学生来说很重要)。

2. 作宾语:动词不定式可以作及物动词或介词的宾语,例如:“I want to go to the cinema.”(我想去电影院)。

“She is good at playing the piano.”(她擅长弹钢琴)。

3. 作表语:动词不定式可以作系动词的表语,例如:“Her dream isto become a doctor.”(她的梦想是成为一名医生)。

4. 作补语:动词不定式可以作及物动词的宾补,表示动作的目的或结果,例如:“She made a decision to study abroad.”(她决定出国留学)。

5. 作定语:动词不定式可以修饰名词,表示名词的用途、用法等,例如:“a book to read”(一本可以阅读的书)。

6. 作状语:动词不定式可以作句子的状语,表示目的、原因、结果等,例如:“I study hard to pass the exam.”(我努力学习为了通过考试)。

动词不定式的基本用法归纳

动词不定式的基本用法归纳

动词不定式的基本用法归纳动词不定式的基本用法归纳一、动词不定时的形式肯定式:肯定式:to do sth 否定式:否定式:not to do sth. 被动式:被动式:to be done 完成式:完成式:to have done二、动词不定式的用法1.作主语A. 动词不定式作主语,谓语动词用单数形式。

动词不定式作主语,谓语动词用单数形式。

如:(1)To see is to believe. (2)To master English gives us much help in the study of sience. B. 不定式或不定式短语作主语时,常用作形不定式或不定式短语作主语时,常用it作形式主语,构成“ 形容词(+for sb.)不定式” 不定式” 式主语,构成“It is + 形容词不定式结构。

结构。

It is impossible for him to give up smoking.2.作宾语A.动词后直接不定式作宾语的动词有许多,如 .动词后直接不定式作宾语的动词有许多,want, decide, intend, fail, wish, export, pretend, choose等等。

等等。

等等I mean to go there at once. B.不定式短语作宾语时,如果还带有宾语补足语,不定式短语作宾语时,如果还带有宾语补足语,不定式短语作宾语时往往把不定式短语放在宾补之后,而用it作形式往往把不定式短语放在宾补之后,而用作形式宾语。

句型为“主语+find(feel, think, believe, 宾语。

句型为“主语consider, etc) +it+形容词名词形容词/名词形容词名词+to do sth”。

I think it necessary to report the thing to the teacher. I find it interesting to work with him.C.动词不定式还可以用作介词宾语,但仅限于 .动词不定式还可以用作介词宾语,介词except和but(除了)。

英语语法学习:动词不定式用法的9个知识要点集锦

英语语法学习:动词不定式用法的9个知识要点集锦

英语语法学习:动词不定式用法的9个知识要点集锦
1. 不定式的形式:
基本形式:“to+动原”
否定形式:“to”前加“not”
疑问形式:“疑问词+to+动原”
被动形式:“to be +过去分词”
完成形式:“to have +过去分词”
关于以上形式的例句:
It began to rain.
Tell him not to come.
What to do is still unknow
I never expect my bike to be found.
Tom seems to have finished his work.
注意,不定式都有“将要做”的暗示,但是在不定式的完成式中,却是“已经做了”。

2. 不定式的功能:
动词不定式可以在句子中作主语、宾语、定语、状语、表语和宾语补足语。

但也有动词的特征,后面可以跟宾语、表语和状语。

不定式的功能:
To see is to believe. (作主语和表语)。

史上最完整的动词不定式用法规律知识点总结

史上最完整的动词不定式用法规律知识点总结

史上最完整的动词不定式用法规律知识点总结动词不定式是英语中的一种非谓语动词形式。

它可以充当名词、形容词或副词,具有广泛的用途和特定的语法规则。

本文将为您总结史上最完整的动词不定式用法规律知识点,帮助您更好地理解和运用这一语法结构。

一、动词不定式的基本结构动词不定式由“to + 动词原形”构成,例如:to study、to eat、to sleep 等。

它可以作为名词、形容词或副词在句子中进行修饰或起其他功能。

二、动词不定式作为名词动词不定式可以作为名词在句子中担任主语、宾语、表语、同位语等。

1. 作主语:To learn a foreign language is beneficial.学习一门外语是有益的。

2. 作宾语:She wants to go shopping.她想去购物。

3. 作表语:His dream is to become a doctor.他的梦想是成为一名医生。

4. 作同位语:His goal, to win the championship, motivates him to practice every day.为了赢得冠军,他每天都在努力。

三、动词不定式作为形容词动词不定式可以作为形容词修饰名词,通常在名词之前。

1. 修饰名词:I have a book to read.我有一本要读的书。

2. 修饰人:She is the person to ask for help.她是可以求助的人。

四、动词不定式作为副词动词不定式可以作为副词修饰动词、形容词或副词,表示目的、结果、原因等。

1. 修饰动词:He bought a new computer to play games.他买了一台新电脑来玩游戏。

2. 修饰形容词:She is too tired to continue working.她太累了,无法继续工作。

3. 修饰副词:He speaks English fluently enough to communicate with foreigners.他的英语说得足够流利,可以与外国人交流。

动词不定式的用法归纳

动词不定式的用法归纳
How to solve the problem is very important.
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

动词不定式的用法总结动词不定式是英语中一种常见的非谓语动词形式,由动词原形加上“to”构成。

它具有多种用法和功能,在句子中可以扮演多种角色。

下面将对动词不定式的用法进行总结和分析。

一、作主语动词不定式可以作为句子的主语,通常位于句首,帮助构成句子的基本结构。

例如:- To learn is to grow. - To study is important for success.二、作宾语动词不定式可以作为动词的宾语,跟在及物动词之后。

例如:- She wants to dance all night. - They decided to go on a trip.三、作介词宾语动词不定式还可以作为介词的宾语,通常介词后面要跟动词的-ing形式,但在某些情况下,使用动词不定式更为恰当。

例如:- She is afraid to speak in public. (介词“in”后接动词不定式) - He is capable of solving difficult problems. (介词“of”后接动词不定式)四、作定语动词不定式可以作为名词的定语,修饰名词。

例如:- I have some books to read. - This is a place to visit.五、作表语动词不定式有时也可以作为句子的表语,描述主语的身份或状态。

例如:- His goal is to become a doctor. - The key is to be patient.六、作宾补动词不定式可以作为宾语的补语,表示对宾语的补充说明。

例如:- She considers him to be her best friend. - They found the task to be challenging.七、作状语动词不定式还可以作为状语,修饰动词或整个句子,表示目的、原因、结果等。

例如:- She works hard to achieve her goals. (目的) - He left early to catch the train. (目的) - He stayed up late to finish his project. (目的) - He left the room, only to return a few moments later. (结果)动词不定式的用法多样灵活,在句子中起着重要的作用。

初中英语动词不定式的基本用法

初中英语动词不定式的基本用法

初中英语动词不定式的基本用法动词不定式(the infinitive)的基本用法动词不定式1.基本构成:to+动词原形,其否定形式是“not/never to do/not do”.2.基本用法:不定式可以带宾语或状语构成不定式短语,没有人称和数的变化。

一、不定式的句法功能1.作主语eg: It’s very common to raise money in Canadian and American school.不定式做主语时,常用代词it来代替不定式结构,这时it被称为形式主语,而作为句子真正主语的不定式则被后置,往往放v.和adj.之后。

e.g. To learn English well is not easy.=It’s not easyto learn English well.★不定式的逻辑主语有时用“of/for+名词或代词宾格”构成,即:It’s+ adj. + for / of sb. + to do sth.跟踪操演1. It’s very nice of them ________ (send) me the flowers.2. _________ (become) a teacher is my dream.3. It’s very important to learn English well.(同义句转换)________ ________ English well ______ very important.4.It’s important _______ Chinese well.A. to learnB. learnC. learningD. learns2.作表语eg:The best way to raise money is to sell newspapers.表语是用来透露表现主语的身份、状况和特性等,可与系动词组成系表布局。

eg:Her wish is to study in Ji Yan Middle school.My job is to clean the streets.跟踪操演1. My work is __________ (clean) the room every day.2. His dream is _________ (be) a doctor.3.作宾语eg:The driver offered to help the patient.有些动词后只能用不定式作宾语,表示命令、打算或希望等。

(完整版)动词不定式用法

(完整版)动词不定式用法

动词不定式用法不定式是动词的一种非限定式,它是不受主语的单复数、人称、时态、语态等的限定及影响的一种动词形式。

一、动词不定式的基本结构动词不定式的基本形式为:to+动词原形,有时可不带to。

不定式的否定形式是:not to+动词原形。

在句中除不能作谓语外,其他成分都可作。

如:主语、表语、宾语、宾语补足语、定语和状语等。

注意:不定式之前的to(又称为小品词)与介词to的功能不同。

介词to之后要接名词或代词的宾格,或相当于名词的短语作它的宾语;而不定式符号to的后面需要跟动词原形。

speak to him (to 是介词) 对他讲话to speak English (to 是不定式的小品词) 讲英语二、动词不定式的用法不定式在句中有各种作用,一般可归类为三种基本用法:作名词,作形容词,作副词。

(一) 不定式作名词的用法不定式起名词作用,在句子中担当主语、表语、宾语和宾语补足语。

⒈作主语名词用法的不定式和名词一样,可担任句子的主语。

To grow more trees here is very important.(=It is very important to grow more trees here.) 在这里多种些树是非常重要的。

To hear your voice is so nice.(=It is so nice to hear your voice.) 听到你的声音真高兴。

To speak English well is not easy for me.(=It is not easy for me to speak English.) 把英语说好对我来说并不容易。

To walk to school takes me twenty minutes.(=It takes me twenty minutes to walk to school.) 步行到学校我要花20分钟。

的句型中,it是形式主语,真正的主语是不定式;使用这种注意:在It is… to…”结构,可以避免句子的头重脚轻。

动词不定式的用法及归纳

动词不定式的用法及归纳

动词不定式的用法及归纳英语动词不定式是一种非谓语动词形式,由"to"加上动词原形构成。

它可以用作动词、名词或形容词的补语,具有多种用法和功能。

下面是对英语动词不定式用法的归纳:1. 作为动词的补语:a. 表示目的:例如,“I study hard to pass the exam.”(我努力学习以通过考试。

)b. 表示结果:例如,“He worked hard to win the game.”(他努力工作以赢得比赛。

)c. 表示原因:例如,“I went to the store to buy some groceries.”(我去商店买一些食品杂货。

)2. 作为名词的补语:a. 作主语:例如,“To travel is my dream.”(旅行是我的梦想。

)b. 作宾语:例如,“She likes to dance.”(她喜欢跳舞。

)3. 作为形容词的补语:a. 表示目的或结果:例如,“This is a book to read for pleasure.”(这是一本供娱乐阅读的书。

)b. 表示能力或目标:例如,“He is a person to trust.”(他是一个值得信任的人。

)4. 不定式的时态与语态变化:a. 时态变化:不定式不具有时态,但可以通过上下文来暗示时间关系。

b. 语态变化:不定式可以通过添加"be"动词的相应形式来表示被动语态。

例如,“He wants to be invited to the party.”(他希望被邀请参加派对。

)总之,不定式在句子中扮演着多种角色,并且具有多种用法和功能,具体使用取决于上下文和意图。

中考英语动词不定式的基本用法总结

中考英语动词不定式的基本用法总结

中考英语“动词不定式”的基本用法总结动词不定式在句子中可充当主语、宾语、表语和宾语补足语和状语(包括目的状语,结果状语和原因状语。

)1. 作主语To dance with you makes me happy.和你跳舞令我高兴。

It is difficult to drive in the mountains. (=To drive in the mountains is difficult.)在山里开车很困难。

2. 作宾语(1)后接不定式作宾语的及物动词多是表示“意愿” “企图”等的动词,如:hope, want, wish, desire, like, decide, try, promise, refuse.I want to talk with her.我想和她谈谈。

She has decided to go.她已决定要走。

(2)在feel, find, think, consider, make等动词后如果是不定式作宾语,而补语是形容词,则通常用it作形式宾语,而把真正的宾语即不定式移至形容词之后。

如:I find it impossible to forget her.我发现忘掉她是不可能的。

He thought it necessary to take an umbrella.他认为带把伞是必要的。

3. 作表语Her wish is to be a teacher.他的愿望是成为一名教师。

Your duty is to clean the classroom.你的任务是打扫教室。

4. 作宾语补足语He wants me to come earlier.他想要我来得更早些。

The policeman ordered them to turn around.警察命令他们转过身。

5. 作目的状语She opened the window to let some fresh air in.她打开窗子好让新鲜空气进来。

动词不定式的用法

动词不定式的用法

动词不定式的用法动词不定式由to+动词原形构成。

这里的to是不定式标志,没有词义。

一、各种形式1. 基本形式:to+动词原形2. 否定形式:not to donever to do二、用法(一)作主语(谓语动词常用单数)1. 位于句首To keep a pet is interesting.养宠物时间有趣的事。

To get up early is a good habit.早起是个好习惯。

2. 位于句末⑴It's+adj./n.+todo sth.It's easy to make friends with him.和他交朋友很容易。

It's interesting to play games with kids.和孩子们玩游戏很有趣。

It's my dream to be a pilot.成为飞行员是我的梦想。

⑵It's+adj.+for sb.+to do sth.It's not easy for me to make friends.对我来说,交朋友不太容易。

It's possible for humans to fly to the moon.对于人类而言,飞上月球是可能的。

⑶It's+adj.+of sb.+todo sth.=sb.+be+adj.+to do sth.It's very kind of you to help us.=You are kind to help us.小结训练1. It's our duty _________ the room every day.A. to cleanB. cleanedC. cleanD. cleans(甘肃省)2. It's hard for us _________ English well.A. learnB. learnsC. to learnD. learning(江西省)3.建造这座立交桥将花费工人们一年多的时间。

动词不定式的基本用法归纳优秀课件

动词不定式的基本用法归纳优秀课件
He is not a man to tell lies.
There will not be enough space to stand in on the earth 2、作定语的不定式与所修饰的名词之间是动宾关系, 不定式动词又是不及物动词时,应在该动词上加上 一个介词,如;
He has a nice pen to write with.
3.作表语和宾语不足语
❖ 动词不定式作表语,一是主语有不定式充当;二是 主语由抽象名词充当。
To teach is to learn. My job is to help the patient. 【注意】如果在主语中(通常在主语从句或修饰主语 的定语从句中)又实意动词do时,作表语的动词不 定式省略to。 All I want to do now (What I want to do now) is fill my stomach.
I think it necessary to report the thing to the teacher.
I find it interesting to work with him.
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)。 ❖常用句型有: There is nothing to do but+动词原形 do nothing but+动词(除做….之外别无选择) can but+动词原形 (只能原形(“只有做……) have no choice but to do ,只得) cannot help/choose but+动词原形(不能不……)
动词不定式的基本用法归纳优 秀课件
一、动词不定时的形式
❖肯定式:to do sth ❖否定式:not to do sth. ❖ 被动式:to be done ❖完成式:to have done

动词不定式的语法总结

动词不定式的语法总结

动词不定式的语法总结动词不定式是非谓语动词的一种形式,是英语中常见的一种语法,学生一定要做好总结,拿下这个知识点。

小编为大家力荐了动词不定式常用的语法总结,给大家作为参考,欢迎阅读!动词不定式的七种用法动词不定式的基本形式为to+动词原形.1.动词不定式做主语.谓语用第三人称单数形式.如果主语较长则用it做形式主语,将真正的主语动词不定式放到句尾.egTo see is to believe.It's a bad habit to run after dinner.2 做表语.the important things is to save lives.3 做宾语he likes to play with children.4做宾语补足语.形容词做宾补时.常用it做形式宾语.把真正的宾语放到宾补之后.he feels it happy to help others.5做定语she asked me to help her with her English.6做状语you are never too old to learn.(结果状语)7特殊疑问词+动词不定式.I am thinking about what to say.动词的不定式的用法口诀①不定式有标记,to与动词连一起。

②没有人称数变化,动词特点它具备。

③主宾定状表补语,唯独作谓不可以。

④not 加上不定式,否定结构要牢记。

⑤疑问词与不定式,构成短语有意义。

⑥仔细推敲多思考,准确判断有依据。

动词不定式专题练习1. This company was the first ____ portable radios as well as cassette tape recorders in the world.A. producingB. to produceC. having producedD. produced2. 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 make3. Helen had to shout ______above the sound of the music .A .making herself hear B. to make herself hearC. making herself heard D .to make herself heard4. I don’t know whether you happen_______ ,but I am going to study in the U.S.A this September.A .to be heard. B. to be bearing C .to hear D .to have heard5. The news reporters hurried to the airport, only ______the film stars had left.A .to tellB .to be toldC .tellingD .told6. You were silly not _______your car.A. to lockB. to have lockedC. lockingD. having locked7. The teacher asked us ______so much noise.A .don’t make B. not make C. not making D .not to make8. An army spokesman stressed that all the soldiers had been ordered _____clear warnings before firing any shots.A .to issue B. being issued C. to have issued D. to be issued9. I’d rather have a room of my own, however small it is, than_______ a room with someone else.A. to shareB. to have sharedC. shareD. sharing10. The bank is reported in the local newspaper_________ in broad daylight yesterday.A. robbedB. to have been robbedC. being robbedD. having been robbed11. A number of paintings in the castle are believed ________ina fire.A. being destroyedB. having been destroyedC. to be destroyedD. to have been destroyed12. The meeting _______ next week is sure to be a great success.A. to take placeB. to be taken placeC. to have taken placeD. being taken place13. As a result of my laziness, I failed ________ my work in time.A. and finishedB. to finishC. and finishingD. to finished14. I am sorry ______ written you a letter at the time.A. to have notB. to not haveC. not to haveD. not having15. Will you lend him a magazine _________?A. to be readB. for readingC. to readD. he read16. He could do nothing but _______for the bus _________.A. wait, to comeB. wait; comeC. waiting; comingD. waited; came17 .It is a problem that doesn't need ________ right now.A. to solveB. solvingC. being solvedD. to be solving18. There’s a man at the reception desk who seems very angry and I think he means _______ trouble.A. makingB. to makeC. to have madeD. having made19. I remember _______him _______the bike needed __________.A. hearing, saying, to repairB. to hear, say, to repairC. hearing, say, repairingD. to hear, saying, to be repaired20. --- You should have thanked her before you left.--- I meant _________, but when I was leaving I couldn’t find her anywhere.。

动词不定式6种用法总结

动词不定式6种用法总结

动词不定式6种用法总结动词不定式(infinitive)有以下六种基本用法:1. 作为动词的宾语:动词不定式可以作为另一个动词的宾语,例如:- I want to learn Chinese.(我想学中文。

)- She loves to dance.(她喜欢跳舞。

)2. 作为主语:动词不定式可以作为句子的主语,通常用于表达一般的动作、状态、观点等,例如:- To travel is my dream.(旅行是我的梦想。

)- To wait is boring.(等待很无聊。

)3. 作为表语:动词不定式可以作为动词 "be" 的表语,常用于表达目的、原因、结果等,例如:- The purpose of this meeting is to discuss the new project.(这次会议的目的是讨论新项目。

)- Her suggestion is to study harder.(她的建议是更加努力学习。

)4. 作为定语:动词不定式可以修饰名词或代词,通常用来表示目的、结果、用途等,例如:- The best way to learn a language is to practice speaking.(学习一门语言的最佳方法是练习口语。

)- He needs a pen to write with.(他需要一支可以写字的笔。

)5. 作为状语:动词不定式可以作为句子的状语,表示目的、结果、方式、条件等,常常与动词 "to be" 连用,例如:- She went to the supermarket to buy some groceries.(她去超市买些食品杂货。

)- He ran fast to catch the bus.(他跑得很快,以便赶上公交车。

)6. 作为补语:动词不定式可以作为某些动词的宾语补足语,常用于表示目的、愿望、需求等,例如:- They made her promise to come back.(他们让她答应会回来。

高中英语知识点归纳动词的不定式

高中英语知识点归纳动词的不定式

高中英语知识点归纳动词的不定式动词的不定式是英语中一种非常重要的语法结构,它可以用来表达动作的目的、原因、愿望、意愿等。

在高中英语学习中,了解并正确运用动词的不定式是提高语言表达能力和写作水平的重要一环。

本文将对高中英语中的动词不定式知识点进行归纳总结。

一、不定式的基本形式与用法动词不定式的基本形式是“to + 动词原形”,例如:to go, to eat, to study。

在句子中,不定式可以充当名词、形容词或副词。

1. 不定式作主语不定式作主语时,常用于句子的开头或者后面。

例如:- To learn a foreign language is important.- It is important to learn a foreign language.2. 不定式作宾语动词不定式可以作及物动词的宾语,常跟在动词后面。

例如:- I want to go to the movies tonight.- She loves to dance.3. 不定式作表语不定式可以作表语,通常与be动词连用。

例如:- His dream is to become a doctor.4. 不定式作定语动词不定式可以修饰名词,充当名词的定语。

例如:- She has a book to read.5. 不定式作状语动词不定式可以作状语,修饰动词、形容词或副词,表达动作的目的、原因、结果等。

例如:- He went to the store to buy some groceries.(目的)- She is too young to watch that movie.(结果)二、动词不定式的时态与语态动词不定式有时态和语态的变化,主要包括一般式、进行式、完成式和被动式。

1. 一般式一般式表示动作或状态的普遍性、一般性。

例如:- I like to play basketball.2. 进行式进行式表示动作正在进行。

动词不定式的用法讲义

动词不定式的用法讲义

动词不定式的用法讲义动词不定式是英语语法中的一个重要部分,它具有丰富的用法和多样的功能。

下面让我们一起来详细了解一下动词不定式的各种用法。

一、动词不定式的形式动词不定式的基本形式是“to +动词原形”,例如“to study”“to play”。

但在一些情况下,to 会被省略,我们后面会详细讲到。

二、动词不定式作主语动词不定式可以用作句子的主语,表示一个具体的、将要发生的动作。

例如:“To learn a foreign language well is not easy”(学好一门外语不容易。

)但需要注意的是,为了避免句子头重脚轻,通常会使用形式主语 it ,将真正的主语动词不定式后置,变成“It is not easy to learn a foreign language well”三、动词不定式作宾语很多动词后面可以接动词不定式作宾语,常见的有:want(想要),hope(希望),decide(决定),plan(计划),expect(期望)等。

例如:“I want to go shopping this weekend”(这个周末我想去购物。

)四、动词不定式作宾语补足语有些动词后面会接宾语和动词不定式作宾语补足语,常见的这类动词有:ask(要求),tell(告诉),allow(允许),enable(使能够)等。

例如:“The teacher asked us to finish the homework on time”(老师要求我们按时完成作业。

)五、动词不定式作定语动词不定式可以用来修饰名词或代词,作定语。

例如:“I have a lot of work to do”(我有很多工作要做。

)这里的“to do”就修饰“work”,表示“要做的工作”。

六、动词不定式作状语1、目的状语动词不定式可以作目的状语,表示某个动作的目的。

例如:“He came here to see me”(他来这里是为了看我。

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动词不定式的基本用法归纳
一、动词不定时的形式
?肯定式:to do sth ?否定式:not to do sth. ? 被动式:to be done ?完成式:to have done
二、动词不定式的用法
1.作主语
动词不定式作主语,谓语动词用单数形式。 如:
(1)To see is to believe.
(2)To master English gives us much help in the study of sience. B. 不定式或不定式短语作主语时,常用 it作形 式主语,构成“ It is + 形容词(+for sb.) 不定式” 结构。
It is impossible for him to give up smoking.
All I want to do now (What I want to do now) is fill my stomach .
4.作宾语补足语
【注意】在感官动词( see, hear, feel, listen to , notice, watch, observe 等)和使役动词( let, have , make )后的补足语中,不定式不带 to。但这类 句子变成被动语态时,必须带 to。
3.作表语和宾语不足语
? 动词不定式作表语,一是主语有不定式充当;二是 主语由抽象名词充当。
To teach is to learn. My job is to help the patient . 【注意】如果在主语中(通常在主语从句或修饰主语 的定语从句中)又实意动词 do时,作表语的动词不 定式省略 to。
I saw him play in the park. →He was seen to play in the park. The boss made those men work day and night . →Those men were made to work day and night.
2.作宾语
A.动词后直接不定式作宾语的动词有许多,如 want, decide, intend, fail, wish, export, pretend, choose 等等。
I mean to go there at once. B.不定式短语作宾语时,如果还带有宾语补足语,
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 (feel, think, believe, consider, etc) +it+ 形容词/名词+to do sth”。
I think it necessary to report the thing to the teacher.
I find it interesting to work with him.
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)。 ?常用句型有: There is nothing to do but+ 动词原形 do nothing but+ 动词(除做 ….之外别无选择) can but+ 动词原形 (只能原形 (“只有做……) have no choice but to do ,只得) cannot help/choose but+ 动词原形 (不能不……)
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