精品文档---下载后可任意编辑动名词的用法1．动名词是动词的一种非谓语形式，由动词 + ing 构成，否定形式为 not doing，具有动词和名词的性质，在句中起名词作用，可作主语、宾语、表语和定语。1）作主语动名词是由动词变化而来，所以，动名词的意义往往是表示某个动作或某件事情。例如：Walking is good exercise. 走路是很好的运动Seeing is believing. 眼见为实。Smoking may cause cancer. 吸烟可能导致癌症。Coming to Hangzhou by train takes about 16 hours. 乘火车到杭州要 16 个小时。Swimming develops the muscles. 游泳可以进展肌肉。动名词作主语时，对于一些比较长的动名词短语，一般采纳"It is …"和"There is …"两种句式来表示。例如：It takes me ten minutes to get home from my office.我从办公室回家要花十分钟。It needs time to make three copies of it.把它复制三份需要时间。It's nice talking with you. 和你谈话很兴奋。 It's no use arguing with him. 精品文档---下载后可任意编辑跟他争论没用。It is no use sending him over. It’s too late already. 派他去没用，已经太晚了。It was very difficult getting everything ready in time. 要把一切按时准备好很困难。It is no use waiting for him any longer.等他是没有用的。It is no good learning without practice.学而不实践是没好处的。It is dangerous using this method to measure the speed of light. 用这种方法去测量光速是危险的。It is worthwhile consulting your tutor about it again.很值得再向你的指导老师咨询一下这个问题。There is no joking about such matters.这种事开不得玩笑。There is no joking about such matters. 这种事开不得玩笑。There is no harm in doing so. 这样做没有害处。There is no littering about. 不许乱扔杂物。2）作定语精品文档---下载后可任意编辑 动名词作定语的情况并不是很普遍，一般只限于单个的动名词作定语，表示“用于……的”或表示“处于某件事情中的……”含义。例如：swimming pool 游泳池 reading material 阅读材料walking stick 手杖 floating needle 浮针 opening speech 开幕词 listening aid 助听器 waiting roo...
