在某些习惯用语中的名词前不用the, 以具体名词表示抽象概念, 如: at home, at first, by bus, by train, go to bed, go to school, in bed, in time a. The thief was thrown into prison. b. Before I go to bed, I’d like to have a cup of tea. c. Shall we go by plane or by train? d. The teacher asked us not to talk to each other in class. 【查看更多】