过去分词做状语时，过去分词的逻辑主语就是句子的主语（过去分词的动作由主语承受）。过去分词表示的动作可能在谓语动词表示的动作之前发生，也可能与谓语动词的动作同时发生（此时强调过去分词的被动意义）。
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。（delighted在made之前）
Guided by these principles, they went on with the work.在这些方针的指引下，他们继续进行这项工作。（guided是they承受的被动动作）
过去分词可做以下几种状语。
1. 做伴随或方式状语，通常修饰谓语，很多是说明动作发生的背景或情况。
Encouraged by these successes, they decided to expand the business.在这些成绩的鼓舞下他们决定扩大经营。
Built in 1192,the bridge is over 700 years old.这座桥是1192年修的，已经有七百年的历史了。
2. 做原因状语。
Influenced by his example, they performed countless good deeds.在他的事迹的影响下，他们做了无数的好事。
Confined to bed, she needed to be waited on in every thing.（由于）她卧病在床，什么事都需要人照顾。
He soon fell asleep, exhausted by the journey.由于旅途劳累他很快就睡着了
3．做时间状语。
Seen from the hill, the town looks magnificent.从山上看这座城市非常漂亮。
This method, tried in areas near Shanghai, resulted in a marked rise in total
production.这个办法在上海附近地区试验时总产量有了显著提高。
4．做假设的条件状语。
Given closer analysis, we can see this is totally wrong.仔细分析一下，我们可以看出这是完全错误的。
Given better attention, the cabbages could have grown better.如果管理得好一点，这些大白菜还可以长得更好。
United we stand, divided we fall.（谚）团结则存，分裂则亡。
有些过去分词做状语时已经习惯用作介词，这时过去分词的逻辑主语可能和句子的主语不一致。
________the general state of his health, it may take him a while to recover from the operation.
A. Given B. To give C. Giving D. Having given（北京卷）
答案是A，此处的given不是过去分词，而是介词，后跟宾语（不跟副词、副词短语，但可跟从句，这时可看作连词），引起条件状语，意为“考虑到……”。
Given that x=y, then n(x+a)=n(y+a) must also be true.(《英语语法大全》，夸克等著，P.1057)
Given her interest in children（=Given that she is interested in children）, I am sure teaching is the right career for her.考虑到她喜欢孩子，我可以肯定教书是最适合她的职业。
Given their inexperience, they done a good job.考虑到他们缺乏经验，这工作他们做得不错。
也可有其它意义。
Given(=With) prudence and patience, anybody can achieve something.（《英语语法大全》（上），张道真著，P.692）
I can persuade him, given enough time and money.（同上）
下面是常见的用作介词的过去分词。
1.granted，承认……是真的
Granted(=Granting) that you are in the right, you should not get angry.
2. provided that，假如
Provided that he acknowledges his fault, I will pardon him.
3.compared with，和……相比较
Forty students of this class have passed this year, compared (or, comparing, as compared) with thirty-two last year.
Compared with most of the girls nowadays, Mary is still a good girl.
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