阅读理解。 Dreams may be more important than sleep. Some people don't need much sleep. But we all need to dream, scientists say. Dreams take up about one quarter of our sleeping time. People have several dreams each night. Dreams are like short films. They are usually in color. Some dreams are like old films. They come to us over and over again. That may be because the dreamer is worrying about something. Dreaming may be a way of trying to find an answer. Some people get new ideas about their work from dreams. They could have been thinking about their work all day. These thoughts can carry over into dreams. Sometimes we wake up with a good feeling from a dream. But often we can't remember the dream. Dreams can disappear quickly from memory. Too much dreaming can be harmful. The more we sleep, the longer we dream. The mind is hard at working when we dream. That is why we may have a long sleep and still wake up tired. 1. It may be less important to sleep than to _______. [     ] A. think B. dream C. work D. study 2. Dreams and films are usually ______. [     ] A. very long B. in color C. about work D. very sad 3. The people often dream about their work because _______. [     ] A. they are tired in the daytime B. they are not interested in their work C. they may be thinking about their work at all D. they have too much work to do 4. The main idea of the story is that _______. [     ] A. people need to dream B. people like to sleep C. dreams are like films D. we always remember dreams 5. The title for the story could be ______. [     ] A. Terrible dreams B. The longest sleep C. Memory D. Dreams