It is + 过去分词 + 从句,常用的组合如下： it is hoped that 希望 it is asked that 要求 it is heard that 听说 It is said that 据说 It is reported that 据报道 It is announced that 通知说 It is excepted that 寄望于 例句： It is said that he has gone to shanghai.(=He is said to have gone to shanghai) 据说他去了上海. It is known to all that the gun powder was first invented by the Chinese. 众所周知火药是中国第一发明的. It is suggested that the work should be done with great care. 根据建议工作应该仔细完成.
