Section_ⅢGrammar-_过去分词作定语和表语

　　语法图解

　　探究发现

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

　　②So many thousands of terrified people died every time there was an outbreak.

　　③He became interested in two theories that possibly explained how cholera killed people.

　　④From the stomach the disease quickly attacked the body and soon the affected person died.

　　⑤He was determined to find out why.

　　⑥He found that it came from the river polluted by the dirty water from London.

　　⑦He immediately told the astonished people in Broad Street to remove the handle from the pump so that it could not be used.

　　⑧With this extra evidence John Snow was able to announce with certainty that polluted water carried the germs.

　　[我的发现]

　　(1)例句①②④⑥⑦⑧中的过去分词(短语)作定语。

　　(2)例句②④⑦⑧中为单个的过去分词作定语，常常放于被修饰名词的前面；例句①⑥中过去分词短语作定语，常常放于被修饰名词的后面。

　　(3)例句③⑤中的过去分词在句中作表语。

　　一、过去分词作定语

　　1．过去分词作定语时的位置

　　(1)前置定语

　　一般情况下，单个过去分词作前置定语，即放在所修饰词之前。

The polluted water was to blame for the spread of cholera.