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4. 不定式在句中的作用 (1).主语 To save time is to lengthen life. It’s +形容词of (for) somebody to do. It’s nice of you to help me. It’s necessary for us to follow his advice. (5)定语 He had a meeting to attend. Give me a piece of paper to write on. He is looking for a place to live (in). She was the first to think of the idea. The play _____________ next month aims mainly to reflect the local culture. Part 2 V-ing 一、v-ing 作主语 v-ing 作主语后置,用 it 作形式主语的句型: It is no use / good / pleasure doing ... 2. It is useless doing ... 3. It is a waste of time doing ... 4. There is no use / good/ point / sense (in) doing ... 类似用法: mean doing 意味着做某事 mean to do 想做某事 (I don’t mean to hurt you) stop doing 停止正在做的事情 stop to do 停下来去做另外的事情 go on doing 继续做同一件事 go on to do 接着做另一件事情 Part 3 V-ed 1. 过去分词具有动词的性质,同时兼有形容词或副词的性质,可以拥有自己的逻辑主语,在句中可以作表语、定语、状语和补足语。 Exercise: 1. Prices of daily goods ____ through a computer can be lower than store prices. A. are bought B. bought C. been bought D. buying 2. With a lot of different problems ____, the newly-elected president is having a hard time. A. settled B. settling C. to settle D. being settled 独立结构的其他形式: n. / pron. + to do eg. Nobody to help us, we can’t get the work done. n. / pron. + done eg. The clothes washed, we went to bed. n. / pron. + adj. / adv. eg. The door open, he fell asleep. n. / pron. + prep eg. He stood there, book in hand. *He stood there, with a book in his hand 1. ________ anything about the accident, he went to work as usual.A. Not known B. Known not C. Knowing not D. Not knowing 2. The next morning she found the man ______ in bed, dead. A. lying B. lie C. lay D. laying D A 3.____
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