定语从句一、 定语从句的功用和结构 在复合句中，修饰某一名词或代词的从句叫做定语从句。被定从句修饰的词叫做先行词。定语从句必须放在先行词之后。引导定语从句的关联词有关系代词和关系副词。例如： This is the present that he gave me for my birthday. Do you know everybody who came to the party? I still remember the night when I first came to the village? This is the place where Chairman Mao once lived.一、 关系代词和关系副词的功用 关系代词和关系副词用来引导定于从句，在先行词和定语从句之间起纽带作用，使二者联系起来。关系代词和关系副词又在定语从句中充当一个成分。关系代词做主语，宾语，定语，关系副词可作状语。1.作主语：关系代词在定语从句中作主语时，从句的谓语动词的人称和数须和先行词一致。
