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初中英语语法知识归纳:非谓语动词(一)

2021-10-18 15:54:36  来源:网络整理

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  英语的核心内容就是语法,初中英语的语法知识很多,打好语法的基础,对孩子们学习英语有更好的帮助。下面是小智为大家整理初中英语语法知识归纳:非谓语动词(一)希望对大家有帮助。如果想领取期中、期末等试题资料,您可以添加康康QQ号:493924147,即可免费领取资料哦。

 

初中英语语法知识归纳:非谓语动词(一)

 

  动词不定式

 

  在英语中,不充当句子谓语的动词,叫作非谓语动词。由于非谓语动词不受主语的限制,没有时态和语态,所以又叫非限定动词。非限定动词有三种形式:动词不定式;动名词和分词。

 

  1、动词不定式

 

  (1)动词不定式的构成和性质

 

  动词不定式是一种非谓语动词,所谓非谓语动词就是不能作谓语的动词。正因为如此,它不受主语的人称和数的限制,没有人称和数的变化,但它具有动词的某些特征,可以带宾语和状语构成不定式短语。其构成是:“to + 动词原形”,否定式是“not to +动词原形”。to是不定式符号,无词义。

 

  (2)动词不定式的用法

 

  动词不定式除了不能作谓语外,可以作主语、表语、宾语、宾语补足语、定语和状语。

 

  ① 作主语

 

  To learn English well is not easy.

  To drive fast is quite dangerous.

 

  不定式作主语时常常用it作形式主语,不定式放在谓语之后以上两个例句可以写成:

 

  It is not easy to learn English well.

  It is quite dangerous to drive fast.

 

  这种用法可以归纳成这样一个句型:

 

  It is (not) + 形容词 + (for sb.) to do sth.

  It is very expensive for me to buy a car.

  It is very difficult for a child to do that job.

 

  有些形容词之后跟of + 名词(代词宾语)+不定式。如:

 

  It is very kind of you to say so.It is very good of you to come.

 

  ② 作表语。如:

 

  My job is to teach English.The first thing is to ring him up.

 

  ③ 作宾语。如:

 

  She wanted to ask you a question.He forgot to turn off the light.

  We decided to hold a class meeting.

 

  常见的可以用不定式作宾语的动词有:like, love, begin, start, try, ask, prefer, hate, find等,有些形容词可接不定式,这种不定式也可作宾语。如:

 

  I’m very glad to see youHe’s sure to come.

 

  ④ 作宾语补足语

 

  不定式是用来补充说明宾语的,通常不定式的动作是宾语发出的。可以带不定式作宾补的动词有:ask sb. To do sth. want sb. To do sth.

 

  tell sb. To do sth. like sb. To do sth. help sb. (to) do sth.,还有些动词可以跟省略to的不定式作宾语补足语。如:hear, watch, see, feel, make, let, have等。如:

 

  I often help my mother do housework.

  The policeman asked the driver to stop.

  The teacher asked us not to talk in class

  I want you to buy some bananas for me.

  We saw him play football.We felt the house shake.

 

  ⑤ 作定语:常常放在所修饰的名词、代词之后,如:

 

  I have a lot of of work to do.He wants something to drink.

 

  ⑥ 作状语。如:

 

  He went to the station to meet his friend.(表目的)

  She has gone to the market to buy some vegetables.(表目的)

  I’m so glad to hear that you have passed the exam.(表原因)

  The boy is too young to go to school.(表结果)

 

  (3)疑问词加动词不定式

 

  疑问代词when, who, which和疑问副词when, where, why, how等加动词不定式,在句中可作主语、宾语、表语等成分。如:

 

  I’m don’t know how to use the computer.(作宾语)

  We can’t decide which one to buy.(作宾语)

  The question is how to get there.(作表语)

  When to start has not been decided.(作主语)

 

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