百度排名技术支持：宇霞信息

从自考历年真题看被动语态的用法：

被动语态表明一种主语和谓语之间的联系，当主语是动作的接受者时，就需要用到被动语态，汉语中所说的，“轿车被撞坏了”“钢笔被修好了”等语句就是一种被动语态的语句，在汉语中常用“被”“由”等词来表明这种被动语态。在英语中则用动词的被动语态方式来表明。被动语态中还可用by短语加在句后表明被动语态中动作的宣布者。也就是谓语动词动作的逻辑上的主语，被动语态常用在下列状况。

1)不知道谁是谓语动词动作的执行者时，或许没有必要说出谁是执行者时。

the glass was broken last night.

玻璃昨天被打破了。

his bike has been stolen.

他的自行车被偷了。

he was asked to go there once more.

他被要求再去那儿一次。

the bag was put into the box.

袋子放在了箱子里。

2)为了着重或杰出动作的接受者时。

the plan has been sent to the headmaster.

方案现已送给校长了。

kilinton was elected the president of u.s.a.

克林顿被选为美国总统。

five people were hurt in the explosion.

五个人在这次爆炸中受伤。

a new building was set up in a short time.

新大楼短期就建成了。

3)被动语态也可以说出动作的执行者，构成如下：

动作接受者+be+过去分词+by+动作执行者。

the picture was praised by everybody.

相片得到了咱们的好评。

the classroom was cleaned by us.

教室被咱们打扫过。

the bridge was built by workers from shanxi.

这座桥是山西的工人建的。

the little boy was found by the police.

小孩被警察找到了。