Period Four　Grammar-The Past Participle (1) as the Attribute and Predicative

感知以下课文原句，补全方框下的小题

1．But he became inspired when he thought about helping ordinary people exposed to cholera.

2．He became interested in two theories that possibly explained how cholera killed people.

3．From the stomach the disease quickly attacked the body and soon the affected person died.

4．He found that it came from the river polluted by the dirty water from London.

5．Nicolaus Copernicus was frightened and his mind was confused.

6．He placed a fixed sun at the centre of the solar system with the planets going round it and only the moon still going round the earth.

1．以上句子中，句3和句6中为单个的过去分词作定语，常常放于被修饰名词的前面；句1和句4中为过去分词短语作定语，常常放于被修饰名词的后面。

2．句2和句5中的过去分词在句中作表语。

一、过去分词作定语

1．意义：及物动词的过去分词作定语往往表示被动和完成；不及物动词的过去分词作定语不表示被动，只表示完成。

(1)表示被动和完成

a polluted river一条被污染的河流

the watered flowers浇过水的花

(2)只表示完成，不表示被动

fallen leaves落叶

the risen sun升起的太阳

2．位置：单个的过去分词作定语时，通常放在被修饰词的前面；过去分词短语作定语时，通常放在被修饰词的后面，其作用相当于一个定语从句。

The student dressed in white is my daughter.