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!
As students, we have homework every day. Here is some advice for us to finish our homework well. Doing homework should be the first thing, and we should do our homework as soon as we get home. At the same time, it is fine to allow for a snack break and also for stretching(伸展) breaks. It is our duty to do our homework. Don't depend on our parents for help. Please try to find the answer by ourselves because we will learn much more in this way. When we have a question, especially something about science or maths, don't always turn to smart phone, iPad or computer! We need to think hard, then try to solve the problems by ourselves. We can also look at our textbooks carefully, or use some tool books. We can't learn anything without thinking. |
Finally, while doing homework, don't think about or do other things. Keep working. We can set a time limit(限制) to help with this. Different ages decide different study time. 10-15 minutes is good for a child that is aged 6-8. A time of 20-30 minutes is right for a child aged9-12. Kids can keep studying for 30-45 minutes at the ages of 13-15. What's more, the ability to pay attention and stay on tasks also decides the study time. So it is natural that some kids may be not good at it. |
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