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2016年職稱英語(yǔ)臨考押題衛(wèi)生類B級(jí)沖刺題及答案

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Are You Getting Enough Sleep?

What happens if you don’t get enough sleep? Randy Gardner, a high school student in the United States, wanted to find out. He designed an experiment on the effects of sleeplessness for a school science project. With doctors watching him carefully, Gardner stayed awake for 264 hours and 12 minutes. That’s eleven days and nights without sleep.

What effect did sleeplessness have on Gardner? After 24 hours without sleep, Gardner started having trouble reading and watching television. The words and pictures were too blurry (模糊). By the third day, he was having trouble doing things with his hands. By the fourth day, Gardner was hallucinating(產(chǎn)生幻覺(jué)). For example, when he saw a feet sign, he thought it was a person. He also imagines he was a famous football player. After the next few days, Gardner’s speech became so slurred(不清楚)that people couldn’t understand him. He also had trouble remembering things. By the eleventh day, Gardner couldn’t pass a counting test. In the middle of the test he simply stopped. He couldn’t remember what he was doing.

Then Gardner finally went to bed, he slept for 14 hours and 45 minutes. The second day he slept twelve hours, the third night he slept for ten and one-half hours, and by the fourth night, he had returned to his normal sleep schedule.

Though Gardner recovered quickly, scientists believe that going without sleep gerous. They say that people should not repeat Randy’s experiment. Tests on Gardner have shown how serious sleeplessness can be. After a few weeks without-started losing their fur(皮毛). And even though the rats ate more food than weight. Eventually the rats died.

During your lifetime, you will probably spend 25 years or more sleeping. But why purpose of sleep? Surprisingly, scientists don’t know for sure. Some sleep in order to replenish(補(bǔ)充)brain cells. Other scientists think body to grow and to relieve stress. Whatever the reason, we know enough sleep.

16. Randy Gardner studied the effects of over over-sleeping.