过去分词位于句首，且与主语是被动关系，过去分词做什么成分？？？表语？宾语？还是………

Question

过去分词位于句首，且与主语是被动关系，过去分词做什么成分？？？表语？宾语？还是………

Answer 1

作状语。其实这都是从句演变过来的。
例如：Hearing the bad news, she couldn't help crying. 听到这个坏消息，她忍不住哭了。
也可以改写成：
When she heard the bad news, she couldn't help crying.

再一个例子：Laughed at by his classmates, he rushed out of the classroom, crying. 由于被同学嘲笑，他哭着冲出教室。
这个可以写成：
Because he was laughed at by his classmates, he rushed out of the classroom, crying.