2017英语四级语法讲解

一个有信念者所开发出的力量，大于99个只有兴趣者。以下是小编为大家搜索整理了2017英语四级的文章" target="_blank" >英语四级语法讲解，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!

1)带情态动词的被动结构。其形式为：情态动词+be+过去分词。

【例如】

The baby should be taken good care of by the baby-sitter. This instrument must be handled with great care. In this sense, bad things can be turnedsintosgood things.

2)有些动词可以有两个宾语，在用于被动结构时，可以把主动结构中的一个宾语变为主语，另一宾语仍然保留在谓语后面。通常变为主语的是间接宾语。

【例如】

The delegation was given a warm send-off at the airport. He was asked a number of questions at the press conference. Two days were allowed them for making the necessary preparation.

3)当“动词+宾语+宾语补语”结构变为被动语态时，原句中的.宾语补语成为主语补语。能用这种结构的动词有：declare, call, consider, elect, appoint, nominate, find, leave, like, make, prefer, think, want等。

【例如】

She was nominated a member of the council. Professor Smith was appointed the head of the Philosophy Department.

4)在使役动词have, make, get以及感官动词see, watch, notice, hear, feel, observe等后面不定式作宾语补语时，在主动结构中不定式to要省略，但变为被动结构时，要加to.

【例如】

A stranger was seen to walksintosthe building. She was made to clean the floor.

5)某些感官动词加形容词可以表示被动意义。

【例如】

The dish tastes apple smells sweet.

6) It+be+过去分词+that从句，或主语+be+过去分词+to do sth.

【例如】

It is said that the boy has passed the national exam. The boy is said to have passed the national exam. It was reported that 60% students in the university had passed CET-6.60% students in the university were reported to have passed CET-6.　1)某些表示状态或者特征的及物动词没有被动语态形式。这类动词常见的有：beg，equal，fail，hold，possess，fit，become，contain，cost，fit，have，lack，resemble,(相似)，suit等。

【例如】

This new English-Chinese dictionary cost me ten dollars.

2)某些动词的主动形式表示被动意义，如：cook, read, shut, smell, taste, wash, write, prove.

【例如】

Good medicine tastes bitter to the mouth. The theory proved right after a series of experiments.