过去分词在句子中可做的成分

1. 作定语；

Our class went on an organized trip last Monday.

2. 作状语；

Given more time, I'll be able to do it better.

3. 作补语；

I heard the song sung several times last week.

4. 作表语；

The window is broken.

过去分词的形式

过去分词既没有进行式也没有完成式，只有一般式：

Built in 1501，the bridge is over 500 years old.

Given more attention，the trees could have grown better.

现在分词与过去分词的区别

1. 现在分词在语态上表主动，在时态上表进行。

We are studying English.

I saw many birds flying along the river.

The story is very moving.

2. 过去分词在语态上表被动，在时态上表完成。

English is widely spoken in the world.

I saw the girl killed with my own eyes.

The boy named Tom is very cool.

3. 区别下面两个句子的意思。

Seeing from the hill ,you can see the whole city.

Seen from the hill, the city is beautiful.