Question

Many students try to study the whole night and not sleep before an exam. Two separate studies show this may do more harm than good. The studies found a good night's sleep may improve memory. The findings of both studies appeared in the publication Nature.

Scientists at the University of Chicago did one of them. They trained students to listen to unclear speech produced by a machine.

Some students listened to the recording after ____________________. Others were tested twelve hours after the training, with no sleep. Guess what? The students who slept understood the recording better.

Professor Daniel says sleep has at least two effects on learning. One is to strengthen memories and protect them against interference(干擾). The second is to recover memories that have been lost.

The study suggested that memories are recorded in three steps. Scientists say the process is similar to the way a computer stores information, but in humans, they say, the second step requires sleep. So remember that!

1. What's the best title of this passage?﹙within 10 words﹚

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2. Which sentence(s) in this passage could be replaced by the following one?

“Different researchers have both found that burning night oil before a test may not bring good but bad results."

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3. Fill in the blank in the 2^nd paragraph with proper words or phrases: ___________________

4. Where did the scientists do the study according to the passage?

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5. Translate the underlined sentence in the last paragraph into Chinese.

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Answer 1

1. Have a good sleep before exam.

2. Two separate studies show this may do more harm than good.

3. a night of sleep

4. At the University of Chicago .

5. 科學(xué)家們認(rèn)為這個過程與電腦儲存信息的方式相似，但是，他們指出，對于人類來說，第二個步驟是需要睡眠的。