1.The man is a worker. 2.The man is speaking at the meeting. 合并句子: The man who is speaking at the meeting is a worker. 概念:在复合句中修饰名词或代词 的句子. (Attributive clause) Mary is a beautiful girl. Mary is a girl who has long hair. 形容词作定语 句子作定语,修饰girl, 叫做定语从句Mary is a girl. Mary has long hair. 合并为一个句子 Mary is a girl who has long hair.先行词 关系词 定语从句 Mary is a girl who has long hair. 关系代词 关系副词 which, that who, whom, whose Where, when 定语从句的用法: 当先行词是物时, 用which 或that引导. These are the trees which were planted last
