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专升本英语语法基本知识(不定式)

发布时间:2020/04/09 10:07:40 来源:易学仕专升本网 阅读量:3922

摘要:专升本英语语法基本知识(不定式)

今天为大家继续带来了专升本英语语法(不定式)的基本知识,希望大家能够坚持每日打卡,一步一个脚印掌握相应的语法知识点,坚信付出终将有所收获。

 

1.用法:主语、宾语、表语、宾语补足语、定语、状语等。

eg:To see is to believe. (主、表)

It only took us a year to finish the work. (主,it形式主语)

She wants to play basketball this afternoon. (宾)

She was the first person to think of the idea. (定:主谓关系)

I have nothing to say on the problem. (定:动宾关系)

He asked me to help him. (宾补)

We are all happy to hear of the good news.(状)

 

◆不定式在let, have, make(让,使),see, look at, notice, hear, listen to, feel等后面作宾语补足语时to应省略,在被动语态中to应保留。

eg:The coach has the team practice hard every night in the past two years.

I saw a man come into the classroom and talk with the teacher.

We felt the house shake.

Someone was heard to come up the stairs.

 

◆在help后,不定式可以带to也可以不带to.

eg:Help me (to) get him to bed.

He help her lift the box.

He helped her to mount the bike

She was helped to lift the box.

 

◆当不定式和其修饰的词有动宾关系时,动词如果是不及物动词,后面就要有必要加介词。

eg:There is nothing to worry about.

I need a pen to write with.

Give me some paper to write on.

 

2.不定式的逻辑主语

不定式前面可以加for引导的短语作逻辑主语,说明不定式表示的动作是谁做的,或不定式指的是谁的情况。

eg:It is important for us to master English.

It will be a mistake for us not to help them.

I open the door for her to come in.

 

3.不定式的否定式:not to do

不定式的被动式:to be done

不定式的完成式:to have done(不定式的完成式仅强调其动作发生在谓语动词之前)

 

 

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专升本英语语法基本知识(情态动词)

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