We all need to dream," some scientists say.
我们每个人都需要做梦，一些科学家说。
Dreams take up about one quarter of our sleeping time. 做梦约占我们睡眠时间的四分之一。People have several dreams each night.人一晚可以做几个梦。 Dreams are like short films. 梦就如同电影短片。They are usually in colour.它们通常是色彩斑斓的。 Some dreams are like old films.有些梦就像老电影。 They come to us over and over again. 它们一遍又一遍地进入我们的梦境。That may be because the dreamer is worrying about something.那也许是因为此人正为什么事而焦虑。 Dreaming may be a way of trying to find an answer.做梦或许正是尝试找出答案的一种方式。
Some people get new ideas about their work from dreams. 一些人从梦里得到了关于他们工作的新点子。They may have been thinking about their work all day.或许是因为他们整天都在考虑这些事。 These thoughts can carry over into dreams.那些想法才会从梦里冒出来。
Sometimes we wake up with a good feeling from a dream.有时候我们从梦里醒来发现感觉很好。 But often we can't remember the dream.但通常我们记不住梦。 Dreams can disappear (消失) quickly from memory (记忆).梦会很快从记忆里消失。
Too much dreaming can be harmful (有害的).梦太多对身体不好。 The more we sleep, the longer we dream. 我们睡得越长，就梦得越长。The mind is hard at work when we dream. 我们做梦时大脑仍在全力工作。That is why we may have a long sleep and still wake up tired.因此我们可能会睡很久而醒来还是累。