3、词的作用,用在名词前。 例:This is my book. 这是我的书。 2. 名词性物主代词起名词的作用。名词性物主代词= 形容词性物主代词+名词例: Look at the two pencils. The red one is yours and the blue one is mine. = Thered one is your pencil and the blue one is my pencil.看那两支铅笔,红的是你的,蓝的是我的。 2) He likes my pen. He doesn’t like hers. = He doesn’t like her