英语四级考试词汇课堂的第15课

　　过去分词短语也可作状语表示原因, 相当于一个表示原因的状语从句. 　　Influenced by his example, they performed countless good deeds. 　　有时也可说明动作发生的时间, 相当于一个表示时间的状语从句. 　　This method, tried in areas near Shanghai, resulted in a marked rise in total production. 　　间或也可表示一个假设的情况, 相当于一个条件从句. 　　Given closer analysis, we can see this is totally wrong. 　　偶尔也可用来代替一个让步状语从句. 　　Picked 20 years a year, it grows tired only after 40 or 50 years. 　　独立结构: 在用分词短语作状语时, 它逻辑上的主语一般必须与句子的主语一.致. 但有时它也可以有自己独立的逻辑上的主语, 这种结构称为独立结构, 一般表示一种伴随的动作或情况. 　　He rushed into the room, his face covered with sweat. 　　有时可以表示时间: 　　Late that autumn, his work finished, he prepared to return to his institute. 　　表示原因: 　　Her eyes dimmed with tears, she did not see him enter. 　　条件: 　　All things considered, her paper is of greater value than yours.