United, we stand; divided, we fall
非谓语动词:过去分词 过去分词(短语)作状语 过去分词表示完成或被动,作状语时,表示动作发生的背景或者情况,在意义上相当于一个状语从句,其省略的主语(逻辑主语)是主句的主语,且与主语之间存在被动关系
过去分词作状语可以表示时间、条件、方式、原因、让步等
过去分词的否定式是将 not 放在其前面
一、过去分词作状语时的具体用法: 1) 过去分词作时间状语时,相当于一个时间状语从句
有时过去分词前可加连词when 或while 来强调时间概念
Asked (When he was asked) what had happened, his face turned red
当他被问及发生了什么的时候,他的脸红了
When heated (When it is heated), water changes into steam
当加热时,水变成水蒸气
Told that his mother was ill(When he was told that his mother was illl), Li Lei hurried home quickly
李蕾得知母亲生病了时,马上赶回了家
Seen from the moon(When it is seen from the moon) , the earth looks green
从月亮上看时,地球是绿色
2) 过去分词作原因状语时,相当于一个由 as, since, because 等词引导的原因状语从句
Deeply (Because they were) moved by the movie, the children began to cry
由于被电影深深地感动,孩子们哭了起来