精选优质文档-倾情为你奉上高中英语语法之动名词一、含义动名词兼有动词和名词特征的非谓语动词形式。基本形式为v-ing, 动名词具有名词的性质,因此在句中可以做主语、表语、宾语、定语等。动名词有时态和语态的变化。动名词的时态和语态的基本形式:(以write为例) 时态语态一般时完成时主动语态writinghaving written被动语态being writtenhaving been written注意:动名词的否定形式是:not writing 二、动名词的基本用法用作主语-常表抽象,或者泛指习惯性的动作。Smoking is bad for your health.Playing with fire is dangerous.Swimming is her favorite sport. 游泳是她最喜欢的体育运动。Learning is important to modern life. 学习对现代生活很重要。注意: 不定式也可以做主语。不定式与动