who 是定语从句中一个常用的关系代词,它是关系代词who的所有格,在从句中作定语,也就是说当先行词与从句中某个名词有所属关系,表达“……的”好项目意思时,用关系代词who 引导定语从句,它既可以指代人枸杞蒸鸡蛋,也可以指代物,既可引导限制性定语从句,也可以引导非限制性定语从句.
例：沁骨①Mr.King, who legs were badly hurt, as taken to the hospital.金先生腿受重伤地摊产品,被送进了医院.
②They lives in a room who window opens to the south.他们住在一间窗户朝南开的房间里面对面谈判.
who短语在定语从句中有时可作介词宾语,即构成“介词＋who＋名词”引导定语从句并在从句中作状语.
例：①The boss in who department Mr King worked had heard about the accident.金先生工作所在的部门领导已经听人说过这一意外事故安全意识教育.
②He is the student of who brother we are always proud.他就是那个我们总是为他哥哥感到骄傲的学生面部排毒怎么做.
who引导定语从句时,通常可与of which/of whom引导的定语从句进行转换.
例：①I made a table, he surface of which(of which the surface)is quite smooth.我制了张
桌子,桌面很光滑.
I made a table, ho surface is quite smooth.下雨的诗
②I live in a room who window(the window of which或of which the window)opens to the south.我住在一间窗户朝南开的屋子里.
③The professor of whom a daughter(a daughter of whom) has gone abroad is very famous in China.那位他的女儿已经出国了的教授在国内很有名.
