现在分词，又称-ing形式、现在进行式)，是分词的一种，分词又分为现在分词和过去分词，它们都是非限定动词，即在句子里面不能单独充当谓语，精品小编准备了高二英语语法知识点，希望你喜欢。

Worried about the journey, I was unsettled for the first few days.

Well-known for their expertise, his parents’ company …..

Confused by the new surroundings, I was hit by the lack of fresh air.

Exhausted, I slid into the bed and fell fast asleep.

过去分词作状语：过去分词作状语时，说明动作发生的背景或情况，其等同于一个状语从句。vt 过去分词作状语时与主句主语构成被动关系，表示被动和完成，vi 过去分词表示状态或动作的完成。

Heated , water changes into steam .

The professor came in, followed by a group of young people .

1 作原因状语，等于as / since / because 引导从句

Moved by what she said ,we couldn’t help crying . = ( As we are moved by what she said …

2 作时间状语，等于when 引导时间从句，如果分词表示的动作与谓语的动作同时发生，可在分词前加when/ while / until 等使时间意义更明确。

When heated , water can be changed into steam .

Seen from the hill ,the park looks very beautiful .= ( When the park is seen from the hill…

3 作条件状语等于 if / whether 引导从句

Given more attention , the cabbages could have grown better .= ( If they have been given more attention ….

Compared with you , we still have a long way to go = ( If we are compared with you …

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：