Unit 2 Working the land Grammar课件(人教版必修4)
Unit 2 Working the land Grammar课件(人教版必修4)第4页

2. 动词-ing形式作主语时常后置, 用it作形式主语,用形容词或名词作表语。常见的作表语的名词或短语有:no use, no good, fun, hard work, a hard / difficult job, a wonder, a waste of time等。如: Is it worthwhile quarrelling with her? It’s no good waiting here. Let’s go home. It was a waste of time reading that book.