动词不定式用法讲解

合集下载

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.

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(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。

动词不定式用法归纳

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。

动词不定式用法归纳总结

动词不定式用法归纳总结

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。

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.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.it仅作形式主语。

2. 作宾语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.而love,like ,begin,start,hate ,prefer等词后面可以接不定式,还可以接动名词,意思无很大区别。

提示: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。

特别注意: stop,forget,remember,go on ,try等词或短语后面可以接不定式。

但后面接不定式和接动名词意思大不相同。

如: 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。

(完整版)动词不定式的用法总结

(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。

不定式的用法总结

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)

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
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。

(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。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

动词不定式的用法讲解
一、动词不定式:
构成:to + 动词原形(to只是不定式符号,没有意义)
动词不定式作主语较长时,常用it作形式主语,而将真正的主语放在句末。

1.It + is/was+形容词+(for sb.) +动词不定式
To learn English well is useful. = It’s useful to learn English well.学好英语是有用的。

To protect environment is important for us.
= It’s important for us to protect environment.对于我们来说保护环境是很重要的。

2. It is / was + kind / good/ nice/ clever + of sb. + 动词不定式
It’s very kind of you to help me. 你帮助我真是太好啦。

It’s very clever of you to do like that. 你那样做真的太聪明啦。

3. It takes ( took , will take ) sb. some time to do something. (做某事花费某人…时间)
4.It is a good idea to do sth.
作宾语
1.常见的跟不定式作宾语的动词有:
want to do sth. decide to do sth.
hope to do sth. plan to do sth.
offer to do sth. agree to do sth.
learn to do sth try to do sth prefer to do sth
promise to do sth. need to do sth. expect to do sth.
2. 主语+ find / think + it +形容词+ (for sb.) + to do
I find it easy to read English every day. 我发现每天读英语和容易的。

He felt it hard to sleep.他觉得很难入睡。

I think it very interesting to learn English. 我认为学英语很有趣。

We found it impossible to cross the river. 我们发现过河是不可能的。

3.特殊疑问词+动词不定式作宾语
Can you tell me how to get to the post office?
I didn’t know what to do next.
动词不定式作宾语补足语:
1.ask sb to do sth. tell sb to do sth.
invite sb to do sth want sb to do sth
wish sb to do sth order sb to do sth advise sb to do sth allow sb to do sth wait for sb to do sth
The question is difficult to answer. 这个问题很难回答
The room is comfortable to live in. 这个房间住起来很舒服
He is easy to get along with. 他很容易相处
I’m glad to see you again. 很高兴再次见到你
She told me to buy a ticket.她让我去买张票
2.要省去to.
注意:宾语补足语:补充说明宾语的。

宾语和宾补之间有逻辑的主谓关系。

He told me to leave at once.
He made the baby laugh.
跟省to的不定式的动词(感使动词):
一感feel
二听listen to, hear
三使make, let, have
四看look at, watch, see, notice
五半帮助help
The teachers helped the students (to) learn English well. 那些老师帮助学生学好英语。

He often helps his mother (to) tidy up the room.他经常帮助他妈妈整理房间。

作表语,表示主语的“职业、职责或性质”
Her job is to clean the hall. 她的工作就是打扫大厅。

My dream is to be a teacher.我的梦想是当一名教师。

作定语
动词不定式修饰名词或代词,起形容词的作用,在句中作定语,特点:
①.要放在被修饰的名词或代词之后。

I have a lot of books to read. Would you like something to eat?
作状语
He worked day and night to get the money.(表目的)他日夜工作来赚钱。

(too...to...,和...adj/adv enough to do sth)(表结果)
She is too young to go to school.
She isn't old enough to go to school.
They were very sad to hear the news.(表原因)听到这个消息他们非常伤心。

The question is simple for him to answer.(表程度)这个问题对他来说太容易回答了。

不定式的否定式是在不定式前加not
They told us not to play basketball too long.
You had better not go to bed late.
动词不定式练习
1.He came ________ (give) us a talk yesterday.
2.She is always the last ______ (come).
3.Tom promised ________ (attend) the meeting.
4.He was lucky enough _______ (find) a seat.
5.Li Ming was too excited ______ (say) a word.
6.The boss made them __ (work) the whole night.
7.His job is _____ (look) after the animals in the zoo.
8.My dream is _____ (fly) to the moon one day.
9.It’s kind ______ you _______ me.
A.of, helping
B.of , to help
C.for, helping
D.for, to help
10.It’s hard _____ (of, for) us _____ (learn) English well.
11.I tried ______ (not make) any noise.
12.I need _______ (practise) speaking more English.
13.I don’t know how ______ (use) the washing machine.
14.Do you want to get something ______ (eat)?
15.There is no more room ______ (live) in.
16.My teacher often tells me ______ (listen) carefully in class.
17.We often see Mary _______ (help) others on her way home.
18.Our teacher asks us _____ (write) down the new words.
19.--- Mary dances best in our school.
--- I agree. I’ll never forget ______ her dance for the first time.
A.seeing
B.to see
C.see
D.seen
20.He has nothing _____ on Sundays and he feels _____ .
A.to do, interesting
B.doing, boring
C.to do, bored
21.Please stop ______ a rest if you feel tired.
A.to have
B.having
C.have
D.has。

相关文档
最新文档