It was reported last week that the haze in Beijing caused many problems为什么用被动语态?

问题描述:

It was reported last week that the haze in Beijing caused many problems为什么用被动语态?
为什么用It was reported 不用It reports 为什么是被报道而不是报道呢?

估计你对it 理解不对
这个it ,是指的新闻,而不是媒体
因此,新闻被报道,是被动
it is said 据说,it is believed 据信 都是同理