1. It be +过去分词+that…句型
It is said that…据说……
It is reported that…据报导……
It is supposed that…据推测……
It is hoped that…希望……
It is well known that…众所周知……
It is generally considered that…普遍认为……
It is suggested that…有人建议……
注：这类结构有的还可改用接不定式的形式来表达。如：
It is said that he has been to Japan. 据说他去过日本。
He is said to have been to Japan.
2. be +过去分词+to do…结构
The meeting is scheduled to take place next week. 会议定于下周举行。
All are supposed to come to the meeting on time. 所有人都应该按时到会。
