The Attributive ClauseWhich one is Harry Porter?The boy is Harry Porter Which one is Harry Porter?The boy _ is Harry Porter.who is wearing glasses定语从句定语从句一、概念一、概念:在复合句中修饰名词或代词的句子在复合句中修饰名词或代词的句子.(在句子中作在句子中作定语定语)(Attributive clause)Harry Porter is a smart boy.Harry Porter is a boy who has magic power.形容词作定语形容词作定语句子作定语句子作定语,修饰修饰boy,叫做叫做定语从句定语从句Harry Porter is a boy who has magic power.先行词先行词 关系词关系词定语从句定语从句关系关系代词代词关系关系副词副词which,who,whom,whose,thatwhere,when,why二、用法二、用法:These are the trees which/that