过去分词有时也可在句子中用作状语，表示
1.动作发生的背景或情况：
Delighted with her work，they made her the general manager
他们很欣赏她的工作，让她当了总经理。
Built in 1192.the bridge is over 800 years old.
这座桥是1192年修的，已经有800多年的历史了。
Depressed，he went to see his mother.
他情绪低落，跑去找他的妈妈。
2.表示原因(相当于表示原因的状语从句)：
Born into a tenant family(=As he was born...)，he had only two years of schooling.
由于出身雇农家庭，他只上了两年学。
Influenced by his example，they performed countless good deeds.
在他事迹的影响下，他们做了无数的好事。
He soon fell asleep，exhausted by the journey.
由于旅途劳顿，他很快就睡着了。
3.表示时间(相当于表示时间的状语从句):
Seen from the hill(=When it is seen...)，the town looks magnificent.
从山上看(时)，这座城市非常美。
Driven beyond endurance，they rose in struggle against their oppressors.
他们忍无可忍，起来和压迫他们的人作斗争。
Enemies once discovered were completely wiped out.
一旦发现敌人，就把他们彻底歼灭。
4.表示假设的情况(相当于条件从句)：
Compared with you，we still have a long way to go.
(如够)和你们相比，我们还有很大差距。
Given better attention，the crops could have grown better.
如果管理得好一些，庄稼还能长得更好。
United we stand，divided we fall.
团结则存，分裂则亡。(谚)
这种句子主要用于书面语，在口语中较为少见。
