(1)    过去分词（短语）作时间状语

Seen under a microscope ,a fresh snowflake has a delicate six-pointed shape.

在显微镜下观察，刚飘下的雪花呈精巧的六角形。

(=when it is seen under the microscope)

When heated, ice will be changed into water.

当冰受热时，它就会变成水。

(=when it is heated)

(2) 过去分词（短语）作原因状语

Many of us, being so excited ,could not go to sleep that night

我们很多人是那样的激动，那天晚上都没有睡着。

(=because we were so excited)

Born and bred in the countryside，sister Carrie was bewildered by the big city.

嘉莉妹妹生长在乡下，对这座大城市感到迷惑。

Gone from home so long，they joyously embraced their mates of boyhood.

他们久离家乡，高兴地拥抱他们的儿时伙伴。

Raised in an atmosphere of love，Shaw is always willing to help others.

肖在充满了爱的环境中长大，所以他总是愿意帮助别人。

(3) 过去分词（短语）作条件状语

Some metropolitan newspapers would make sizable volumes if printed in book form.

如果印成书的形式，有些大城市的报纸的销量会相当可观。

Seen in this light，the matter is not as serious as people generally suppose.

从这个角度看，问题并不像人们一般料想的那样严重。

Given better attention，the cabbages could grow even faster.

白菜照管得好会生长得更快。

Considered from this point，the question is of great importance.

从这一点看，这个问题很重要。

(4) 过去分词（短语）作让步状语

Mocked at by everybody，he had my sympathy.

人人都嘲笑他，但我却同情他。

Left to his own devices，Charles did not relax his efforts.

查尔斯虽孤立无援，但他并没有放松自己的努力。

Although exhausted by the climb，he continued his journey.

他虽然爬得很累，但他仍继续前进。

(5) 过去分词（短语）作方式状语

I finished the work as requested.

我按要求完成了工作。

As scheduled， the two friends met on May 10.

根据安排，两个朋友于5月10日见了面。

That fellow was walking with a limp as if injured.

那家伙一瘸一拐地走着，似乎受了伤。

但要注意：过去分词（短语）作方式状语时，前面通常带有as， as if等从属连词，此时可视为省略的让步状语从句。

(6) 过去分词（短语）作伴随状语

Found in all parts of the state，pines are the most common trees in Georgia.

松树在佐治亚州随处可见，是该州最普通的树木。

He went to work，burdened with worries.

他心事重重地上班去了。

The headmaster went into the lab, followed by the foreign guests

校长走进了实验室，后面跟着外宾。