请看下面的题：

Great changes __________ in China since 1978.

A. have taken place      B. took place       C. have been taken place      D. were taken place

此题应选A。首先要排除C，D，因为take place(发生)是不及物动词，所以不能用被动语态；另一方面，因为句子中的since 1978，所以句子宜用现在完成时A。

大家知道，不及物动词没有被动语态(因为不及物动词没有宾语，转换成被动语态便没有主语)。但这里要注意的是：由于受汉语的影响，有些不及物动词很容易被考生误认为是及物动词，从而误用被动语态。这类易用错的动词主要的有take place 发生 / happen 发生 / come about 发生 / breakout 爆发 / appear出现 / disappear 消失 / last 持续 等)。

他出什么事了?

误：What was [is] happened to him?

正：What has happened to him?

每四年举行一次选举。

误：Elections are taken place every four years.

正：Elections take place every four years.

我不知道这事是怎么发生的。

误：I don’t know how this thing was come about.

正：I don’t know how this thing came about.

夜里起了一起火灾。

误：A fire was broken out during the night.

正：A fire broke out during the night.