1.分词的性质：
具有形容词性质，可以在句中担任表语、定语、宾补、状语，现在分词表示主动，且动作在进行：过去分词表示被动，或动作已完成。
2.分词的形式：
例： write （vt） rise （vi）
主动语态 被动语态 主动 过去分词
时态
现在时 writing being written rising risen /
完成时 having written having been written having risen /
3.分词的用法：
（1）定语 分词置于被修饰名词前
分词短语于置于被修饰名词后
a sleeping baby = a baby who is sleeping
a running dog = a dog which is running
a broken glass = a glass which is broken
a beaten team = a team which is beaten（beaten 是被打败的意思）
This is the problem discussed at the last meeting.
The problem being discussed is very important.
（2）表语：The book is interesting.
He is interested in the book.
The news is exciting.
He feels excited.
（3）宾语补足语：
When I woke up, I found my mother sitting beside me.
I'd like to havethis package weighed.
动词不定式作宾语表示动作的全过程，而现在分词作宾补表示动作正在进行；过去分词表示被动概念。
