题型：阅读选择 题类： 难易度：普通
广西壮族自治区贵港市桂平市2023-2024学年九年级上学期期中考试英语试题
Babies sleep up to eighteen hours a day. Mrs. Thatcher and Napoleon both said they only needed to sleep three or four hours a night. Sleep—No one can live without it. But how much do we really need?
Research by the National Sleep Foundation in Washington says that we all need eight hours' sleep every night. Scientists have found that people who sleep for less than six and a half hours a night are more often ill than people who sleep for eight hours. Going without sleep also increases the chance of serious illness. Workaholics who sleep for less than five hours often die young, and do less well at work.
The scientists found that, on average(平均起来), adults sleep for seven hours a night, with 32% sleeping less than six hours. It also says that the idea that we need less sleep when we get older is completely untrue. "People have no idea how important sleep is to their lives," Dr. Thomas Roth, director of the Foundation says. "Good health needs good sleep."
"But not too much of it," says Professor Jim Home of Loughborough University. "Sleep is like food and drink," he believes, "You would always like to have a little bit more, but that doesn't mean you need it." Professor Home studied a group of people who could spend as many hours as they wanted in bed; after sleeping ten hours, they didn't find that they could get up easily either. And people who sleep for more than nine hours a night die younger than people who usually sleep for seven or eight!
Hello! Welcome to our programme! I'm John. I'm in a health club now. I'm having a talk with four students. They are members of this club.
| Hi! My name is David. I want to be healthy. Health makes me feel good and helps me to study better. So I joined the club. I come here on Tuesdays and Fridays. I exercise for thirty minutes each time. |
| Hello! I'm Alice. I like to eat hamburgers and candies. My classmates said I looked unhealthy. So I came here to exercise. I come here three times a week and spend fifty minutes each time. Now I look healthy. |
| I'm Ann. I have too much homework to do every day. I often feel tired. I think exercise can make me relax and help me to study better. Although I am very busy every day, I spend forty minutes here. |
| I'm Bill. I always wanted to sleep in class, although I slept nine hours each night. The doctor said I was unhealthy and needed to exercise. So I came here, I find that I'm full of energy after twenty minutes' exercise each day. Now I never sleep in class. |
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