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 Stick 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.

C-16．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

正确答案：B学生答案：B
老师点评：
答案解析：
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。

题型：单选题客观题分值2分难度：较难得分：2
17
阅读C-16题干中Passage One材料，完成本题。

C-17．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

正确答案：C学生答案：C
老师点评：
答案解析：
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。

题型：单选题客观题分值2分难度：较难得分：2
18
阅读C-16题干中Passage One材料，完成本题。

C-18．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.

正确答案：D学生答案：D
老师点评：
答案解析：
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。

题型：单选题客观题分值2分难度：较难得分：2
19
阅读C-16题干中Passage One材料，完成本题。

C-19．What does the text focus on?

A
Dreams and memories.　

B
Dreams and emotions.

C
The benefits of dreams.

D
The patterns of dreams.

正确答案：C学生答案：C
老师点评：
答案解析：
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。

题型：单选题客观题分值2分难度：较难得分：2
20
阅读C-16题干中Passage One材料，完成本题。

C-20．In which part of a magazine can this text be found?

A
Entertainment.

B
Tourism.

C
Science.

D
Advertisement.

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