The man was caught by police,with his hands tied.

问题描述:

The man was caught by police,with his hands tied.
这里为什么要用with?这是什么用法?

这是独立主格作伴随状况状语.
本句中,全句的主语是the man, ,过去分词tied的逻辑主语不是这个人而是他的手,这种情况下就要用到独立主格,用with连接表明其状态,with也可以省略.
翻译:这个人被警察抓住了,手被绑着.
供参考.