我們每個人都需要做夢，壹些科學家說。
Dreams take up about one quarter of our sleeping time. 做夢約占我們睡眠時間的四分之壹。People have several dreams each night.人壹晚可以做幾個夢。 Dreams are like short films. 夢就如同電影短片。They are usually in colour.它們通常是色彩斑斕的。 Some dreams are like old films.有些夢就像老電影。 They come to us over and over again. 它們壹遍又壹遍地進入我們的夢境。That may be because the dreamer is worrying about something.那也許是因為此人正為什麽事而焦慮。 Dreaming may be a way of trying to find an answer.做夢或許正是嘗試找出答案的壹種方式。
Some people get new ideas about their work from dreams. 壹些人從夢裏得到了關於他們工作的新點子。They may have been thinking about their work all day.或許是因為他們整天都在考慮這些事。 These thoughts can carry over into dreams.那些想法才會從夢裏冒出來。
Sometimes we wake up with a good feeling from a dream.有時候我們從夢裏醒來發現感覺很好。 But often we can't remember the dream.但通常我們記不住夢。 Dreams can disappear (消失) quickly from memory (記憶).夢會很快從記憶裏消失。
Too much dreaming can be harmful (有害的).夢太多對身體不好。 The more we sleep, the longer we dream. 我們睡得越長，就夢得越長。The mind is hard at work when we dream. 我們做夢時大腦仍在全力工作。That is why we may have a long sleep and still wake up tired.因此我們可能會睡很久而醒來還是累。