When you tidy your messy bedroom，it gets a lot easier to find things.Dreams may work the same way for a messy brain，helping you learn by organizing memories and ideas.
　　To test how much dreams can help learning，Robert Stickgold had some students play a shape­fitting game called Tetris(俄罗斯方块)for a few hours and then go to sleep.Soon they were dreaming of falling Tetris shapes.Interestingly，the worst Tetris players had the most Tetris dreams and improved their game the most.Similar tests have shown the same results for all kinds of skills.
　　As we dream，many important tasks are getting done.The brain decides what to keep and what to forget.It is connecting new experiences to older learning.In fact，the brain is learning all night long.
　　Another important task of dreams may be to help us deal with emotions(情绪).At night，emotions are in the driver’s seat.People who have had an upsetting experience often dream about it afterward.Often the dream event changes somehow—another way the brain tries to make the memory less upset.So if your best friend moves away，you might dream that you’re the one who’s moving.In fact，dreams have a proven power to improve mood，and people who dream about what’s bothering them usually feel better sooner than those who don’t.
　　Everybody dreams for a couple of hours every night—in the course of your life，you’ll spend about 25 years asleep and 6 years dreaming.There’s probably no single answer to the question why we dream，but there doesn’t have to be.One dream might help you remember your math facts，while another might lead to a new invention，or give you a fun，crazy story to tell your friends.It’s all in a night’s work for our busy，mysterious brains.
　　1、In which part of a magazine can this text be found?A.Entertainment.
　　B.Tourism.
　　C.Science.
　　D.Advertisement.
　　参考答案：C
　　参考解析：推理判断题。根据文章主旨可知，文章是关于梦的科学研究方面的知识，所以最可能在杂志的有关科学的栏目里找到此文章，故选C。
　　2、Robert Stickgold’s test shows that________.
　　A.games are useful for memory
　　B.dreams can help improve skills
　　C.players stop learning in dreams
　　D.tasks can only be settled through dreams
　　参考答案：B
　　参考解析：推理判断题。根据第二段可知，为了证实梦对学习有帮助，Robert Stickgold做了这次实验，而实验结果表明选手的技能有所提高，根据本段最后一句“Similar tests have shown the same results for all kinds of skills.”可推知，梦对学习各种技能都是有帮助的，故选B。
　　3、What does the text focus on?
　　A.Dreams and memories.
　　B.Dreams and emotions.
　　C.The benefits of dreams.
　　D.The patterns of dreams.
　　参考答案：C
　　参考解析：主旨大意题。通读全文可知，本文主要说明了梦的好处：有助于改善学习和情绪。
　　4、Which of the following does the author probably agree with?
　　A.Dreaming does harm to one’s mood.
　　B.Dreaming affects the quality of sleep.
　　C.It’s hard to find out the secrets of dreaming.
　　D.It’s not so important to know the cause of dreaming.
　　参考答案：D
　　参考解析：细节理解题。根据最后一段第二句“There’s probably no single answer to the question why we dream，but there doesn’t have to be.”可知，作者认为关于我们为什么会做梦的解释不止一个，但也没必要非要有一个解释。
　　5、We can learn from Paragraph 4 that________.
　　A.dreams can get rid of sufferings
　　B.only drivers can deal with emotions
　　C.one may be less upset after a dream
　　D.dreams can copy what one experienced
　　参考答案：C
　　参考解析：细节理解题。根据第四段第一句“Another important task of dreams...emotions(情绪).”和最后一句“In fact，dreams have a proven power to improve mood...”可知，梦有助于改善心情，故选C。
　　参考译文：
　　当你整理凌乱的卧室时，找到东西会变得容易得多。梦对凌乱的大脑也会起同样的作用，通过组织记忆和想法帮助你学习。
　　为了测试梦对学习有多大帮助，罗伯特·斯蒂克哥德让一些学生玩一种形状适合的游戏，叫做俄罗斯方块（Tetris），玩了几个小时，然后去睡觉。很快，他们就梦到了俄罗斯方块的下落。有趣的是，最糟糕的俄罗斯方块玩家做了最多的俄罗斯方块梦，并且改进了他们的游戏。类似的测试显示他对各种技能都有同样的效果。
　　当我们做梦的时候，许多重要的任务正在完成。大脑决定要保留什么和要忘记什么。它将新的经验与旧的学习联系起来。事实上，大脑整夜都在学习。
　　梦的另一个重要任务可能是帮助我们处理情绪（情绪）。在晚上，情绪就在司机的座位上。经历过烦人经历的人常常事后梦到它。通常梦中的事情会以另一种方式发生变化，大脑试图使记忆不那么烦躁。因此，如果你最好的朋友离开了，你可能会做梦。事实上，梦有一种改善情绪的力量，而那些梦到困扰他们的事情的人通常比那些不喜欢的人感觉好得多。
　　在你的生活中，每个人每晚都会做几个小时的梦，你会花大约25年的时间睡觉，6年的时间做梦。对于我们为什么做梦这个问题，可能没有一个答案，但不一定非得有。一个梦可以帮助你记住你的数学事实，而另一个梦可能会导致一项新的发明，或者给你一个有趣，疯狂的故事，告诉你的朋友。这一切都是在一个晚上的工作，为我们忙碌，神秘的大脑。