过去分词短语作状语，具体如下：
过去分词或过去分词短语作状语时，表示被动和完成，在句子中一般可以作时间、原因等。
1. 时间状语
Told that his mother was ill, Li Lei hurried home quickly. 李蕾得知母亲生病了时，马上赶回了家。
Seen from the moon, the earth looks green. 从月亮上看时，地球是绿色。
2. 原因状语
Broken down on the high way, his car was carried away by the police. 由于他的车在高速公路上坏了，于是被警察拖走了。
Satisfied with what he did, the teacher praised him in class. 由于老师对他所做的事情很满意，于是在班上表扬了他。
3. 条件状语
Given a few minutes, I’ll finish it. 再给几分钟的时间，我就会完成了。
Compared with you, I still have a long way to go. 跟你比较起来，我还差得很远呢。
4. 让步状语
Explained a hundred times, he still can’t understand it. 即使给他解释一百篇，她还是不会明白。
Trained ten hours a day, he will still be a fool. 即使每天训练十个小时，他也还会是个傻瓜。
5. 结果状语
He fell off a tall tree, his leg broken. 他从树上摔了下来，腿摔断了。(from
www.yygrammar.com)。
The cup fell down to the ground, broken. 茶杯掉到了地上，破碎了。