1、Unit 3 Life in the futureGrammarPast participle (3)used as Adverbial 现在分词表进行 ,主动 ,与主句主语之间是主动关系。如果一个被动的动作发生在谓语动词之前 ,则可使用现在分词的完成被动式或过去分词。过去分词表完成、被动 , 作状语时,其逻辑主语是主句的主语 , 且与主语之间存在着被动关系。过去分词作状语可表时间 , 原因 , 让步 , 结果 , 方式 , 条件等。观察下列的句子 :Once published, his works (=Once his works was published, ) became famou
2、s for the absence of rhyme at the end of each line. PP作时间状语 ,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。过去分词作时间状语1. When it is heated , ice will be changed into water. When heated , ice will be changed into water.2. When it is seen under a microscope , a fresh snowflake has a delicate six-pointed. See
3、n under a microscope, a fresh snowflake has a delicate six-pointed shape. 过去分词作原因状语1. Since/ As she was given advice by the famous detective, the young lady was no longer afraid. Given advice by the famous detective, the young lady was no longer afraid.2. Because it was done in a hurry, his homework was full of mistakes. Done in a hurry, his homework was full of mistakes.
