表示据说的三类被动句型
(1) It is said that句式
It is said that honesty is the best policy. 人们说诚实是上策。
It is said that thirteen is an unlucky number. 据说13是一个不吉利的数字。
It is said that those who eat the most are the least healthy. 据说吃得最多的人身体最差。
注：其他类似结构还有：
Its supposed to be very good. 据说它质量很好。
Its expected that the war would end soon. 预计战争不久即可结束。
It is reported that another earth satellite has been put into orbit. 据报道又有一颗卫星上天了。
(2) There is said that句式
There is said to be plenty of oil off our coast. 据信我们近海有大量石油。
注：其他类似表达还有：
There is supposed to be a train at 9:30. 九点半应有一班火车。
There are known to be thousands of different species of beetles. 据了解，有成千上万种不同的甲虫。
(3) sb / sth is said that句式：其意为据说，
Mr. Brown is said to have died of liver cancer. 据说布朗先生死于肝癌。
注：其他类似表达还有：
The strike is expected to end soon. 估计罢工不久就可结束。
He is believed to have already got out of the country. 据信他已离开这个国家。