1、 用作主语。例如： It is an honour for me to be invited to the party.我被邀请参加晚会， 这是个荣幸的事。
3、 用作宾语。例如： She asked to be sent to our college. 她请求派到我们学院。 T茑霁酌绡he students wanted to be given more experiments to do. 学生们想 多给些实验做。 More than half a century after his death，he continues to be read and quoted. 他去世已经半个多世纪，他的著作继续为人们阅读和 引用。
5、 用作宾语补语。例如： He did not like his intention to be laughed at. 他不喜欢自己的意 图受到嘲笑。 The governor wanted the thief to be punished. 地方长官要让这个 窃贼受到惩罚。
7、 用作状语。例如： l was glad to have been praised. 我很高兴受到了表扬。 He has returned only to be sent away again. 他回来后又被派了 出去。
