4 作方式或伴随状语

The actress came in , followed by her fans .

She sat by the window , lost in thought .

5 作让步状语

Much tired ,he still kept on working .=(Although he was tired ,) he ….

6 独立主格结构： 当分词的逻辑主语不是主句主语时，分词可以有自己独立的逻辑主语，这种结构称为独立主格结构。常用来表示伴随情况。

The boy rushed into the classroom , his face covered with sweat .

All things considered ,your article is of great value than hers .

Rewrite with proper conjunctions

Example : United we stand, divided we fall.

If we are united, we will stand, but if we are divided,we will fall.

1 Asked what had happened, he told us about it.

→When he was asked what had happened, …

2 Well known for his expert advice, he received many invitations to give lectures.

→Because he was well known for his expert advice, …

3 Given more time, we would be able to do the work much better.

If we were given more time,

4 Once translated into Chinese, the book became very popular among Chinese teenagers.

Once it was translated into Chinese,

5 Deeply interested in medicine, she decided to become a doctor.

Because she was deeply interested in medicine,

6 Left alone at home, Sam did not feel afraid at all.

Although he was left alone at home,

现在分词与过去分词作状语

现在分词作状语时，与其逻辑主语之间是主动关系，;而过去分词与其逻辑主语之间则表示被动关系。

Seeing these pictures, I couldn’t help thinking of those days when I was in Beijing . Seen from the top of a thirty-storeyed building, Beijing looks more magnificent. (see)

选择现在分词还是过去分词，关键看主句的主语。如分词的动作是主句的主语发出，分词就选用现在分词，反之就用过去分词。例如：

Used for a long time, the book looks old.

由于用了很长时间，这本书看上去很旧。

Using the book, I find it useful.

在使用的过程中，我发现这本书很有用