高考英语语法总复习-动名词（共17张PPT）

★ ___________(swim) is good for health. ★ ___________ (raise) your hat to a a lady is good manners . ★ ____________ (kill) by sharks in the sea is a common thing . Raising Being killed Grammar 1.作主语 Swimming Talking mends no holes. 空谈无济于事。 Working with you is a pleasure. 和你一起工作是一种乐趣。 动名词做主语和不定式做主语一样，也可以用it作形式主语。如： It's rather tiring walking around in a city. 不定式做主语往往表示具体的特别是将来的动作。如： It's no use crying over spilt milk. 覆水难收。 He realized that to go on like this was wrong. （指抽象动作） （指具体动作） ②用形式主语it，把真正的主语ing形式移置句尾。但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词。 和夏洛克争辩是没有什么用的。 It is useless trying to argue with Shylock． 这事值得去做。 It’s worthwhile making the effort． 想再解释一次有好处吗? Is it any good trying to explain? 跟你在一起工作是令人愉快的。 It is pleasant working with you． 归纳：常用-ing形式作主语的句型有： It +be +a waste of time doing 做……是浪费时间的 It is/was no good/use doing 做……是没益/用处的 It is/was worth doing