英语基本语法知识点讲解：动词不定式作补语" title="英语基本语法知识点讲解：动词不定式作补语" >

1)动词+宾语+不定式(to do)

例句：

a.Father will not allow us to play on the street.

父亲不让我们在街上玩耍。

b.We believe him to be guilty.

我们相信他是有罪的。

Find 的特殊用法：

Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。find后也可带一个从句。此类动词还有get，have。

I found him lying on the ground.

I found it important to learn.

I found that to learn English is important.

典型例题:

The next morning she found the man ___ in bed，dead.

A. lyingB. lieC. layD. laying

答案：A.find的宾语后面，用分词或分词短语，起宾语补足语作用。现在分词表达主动，也表达正在进行，过去分词表达被动。

2) to + be 的不定式结构，作补语的动词。

Acknowledge,believe,consider,think,declare(声称),discover, fancy(设想),feelfind,guess,judge,imagine,know,prove,see(理解), show,suppose,take(以为),understand

We consider Tom to be one of the best students in our class.

我们认为汤姆是班上最好的学生之一。

典型例题

Charles Babbage is generally considered___ the first computer.

A. to inventB. inventingC. to have inventedD. having invented

答案：A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实，不定式后用原形即可。而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。

3) to be +形容词

Seem,appear,be said,be supposed,be believed,be thought,be known,be reported,hope, wish,desire,want,plan,expect,mean…

The book is believed to be uninteresting.

人们认为这本书没什么意思。

4)there be+不定式

believe, expect, intend, like, love, mean, prefer, want, wish, undrstand

We didn’t expect there to be so many people there.我们没料到会有那么多人在哪里。

注意 ： 有些动词需用as 短语做补语，如regard, think believe, take, consider.

We regard Tom as our best teacher.　我们认为汤姆是我们最好的老师。

Mary took him as her father .　玛丽把他当作自己的父亲。