楼上的太长了,看起来头晕 简单点说 mine him her yours ours its是名词性物主代词,这些代词往往放于句尾,和名词的用法有些类似. 例如: The book is mine.这本书是我的 The ball is its.这个球是它(指小猫小狗类动物)的 my his her your our its是形容词性无主代词,这些代词用法类似于形容词,词后跟一个名词 例如: This is my book这书是我的 Her name is lucy她的名字是露西 注意:she it的的名词性物主代词,形容词行无主代词同型,是her its