一、人称代词表示"我"、"你"、"他"、"她"、"它"、"我们"、"你们"、"他们"的词,叫做人称代词。人称代词主格:作主语,表示谁怎么样了、干什么了。I am a teacher. You are student. He is a student, too.We/You/They are students.人称代词宾格作宾语,表示动作行为的对象。Give it to me. Let's go (let's =let us)二、物主代词表示所有关系的代词叫做物主代词,也可叫做代词所有格。物主代词分形容词性物主代词和名词性物主代词二种。形容词性物主代词(my/your/his/her/its/our/their)+名词而名词性物主代词则相单于性物主代词+名词,故其后不必加名词。如:Is this your book?No,,it isn't, it's hers(her book)This pen is mine.