Unit 3 Grammar梁露.ppt

二: V-ing 可作主语、宾语、表语; 定语、状语和宾语补足语，但不能单独作谓语。 V-ing 形式表示的动作与主要动词同时发生或发生在主要动词之后，用其一般式; V-ing 形式表示的动作在主要动词之前发生，用其完成时，在具体应用中也常以一般式代替完成式。 V-ing 的用法： 2. 作表语 ☆ Teaching is learning. 教学相长． ☆ My hobby is __________ (make) model planes. ☆ What worried the child most was _________ (not, allow) to visit his mother in the hospital . 2). V-ing形式和不定式都要有对称性;当主语是不定式时，表语也用不定式；反之，当主语是 V-ing 形式时，表语也用 V-ing 形式。 To see is to believe. = Seeing is believing. 3). It’s no use (good) doing sth It’s a waste of time doing sth it 作形式主语, 只用V-ing,不用不定式。 ※ It is + adj. + (for sb ) to do sth It is no use crying over spilt milk. 覆水难收。 It is a waste of time ___________ (talk) to him . It is important for me _______________ (learn) English . 3.作宾语 V-ing 形式既可作动词的宾语, 也可作介词的宾语。 ★ We would appreciate hearing from you． 我们会珍惜你的来信。 ★ The bird escaped ______________ (catch) . ★ I feel like __________ (join) the army. ★ He was afraid of ____________ (abandon) by us. 8. 在绝大数情况下，逻辑主语是句子的主语，但有时前可有一个名词或代词表示视神经逻辑上的主语，这种带逻辑主语的称为独立结构。 The meeting being over, we all left the room and drove home. 　 会议结束后，我们都离开房间开车走了。 It being a holiday, all the shops were shut. 由于今天是假日，所有商店都关门了。 9. 有少数并不表示句子主语的动作，而是表示说话人的态度。 Generally speaking, the novel is not very inspiring. 总的来说，这部小说并不感人。 Judging from what you say, he ought to succeed. 从你说的情况看，他应能成功。 Practice 1. --- What made Bill so angry? --- ___. His girl friend promised to come at 8:30, but she hasn’t come yet. A. Having kept waiting B. Being kept waiting C. To be kept waiting D. Being kept waited 2. The building ___ in our school is for us teachers. Though there’s noise most of the day, we still feel happy about it. A. built B. having been built C. to be built D. being built 3. The squirre