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高考英语词汇解析:act重要短语用法 act重要短语用法 1 act as 担任,充当,起……的作用。如: A trained dog can act as a guide to a blind person. 经过训练的狗可以担任盲人的向导。 表示担任独一无二的职务,其前通常不用冠词。如: He acted as manager in my absence. 我不在时他担任经理。 I don’t understand their language; you’ll have to act as interpreter. 我不懂他们的语言,你得当翻译了。 2 . act for 代理,代为。如: Please act for me during my absence. 我不在时请代理我处理事务。 I acted for our captain while he was in hospital. 我们队长住院时由我代理他。 3 . act out 表演出来。如: Let’s act out the story of the three bears once more. 让我们再把这三只熊的故事表演一次吧。 4 . act on 对……起作用,对……有效。如: The drug acts on the stomach. 这药对胃有效。 Alcohol acts on the nervous system. 酒精对人的神经系统有影响。 5 . in the act 当场,正在动作时。如: He was in the very act of starting. 他正准备动身。 He was caught in the act . 他被当场抓住。
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