3、语关系副词When=atinonduringwhich时间状Where=atintowhich地点状Why=forwhich原因状that在口语中可以代替关系副词以上三者状Thisistheplacewherewework.(vi.)(关系词所做的成分关键是有从句中的动词来决定的)Thisistheplacewhichwevisited.(vt.) 种类先行词关联词例句说明定 语 从 句(人)在从句中做主语或宾语 物在从句中做主语或宾语 who which Thisisthedoctorwhosav