题型：阅读选择 题类：常考题 难易度：普通
牛津译林英语八年级上册 Unit 8 Natural disasters单元测试（一）
The word “day” has two meanings. When we talk about the number of days in a year, we are using “day” to mean 24 hours. But when we talk about day and night, we are using “day” to mean the time between sunrise and sunset. Since the earth looks like a ball, the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o'clock in the morning and sets at 6 o'clock in the evening. For six months the North Pole（北极）is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere（半球）. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.
Stress(压力) is everywhere in our everyday life. Not only men but also women and young people have it. The most important reasons of stress are: diseases, exams, making money, getting married, moving houses, changing jobs, ending friendships and so on.
How do you know whether you have stress? Give your answers to the following questions?
| Yes | No | ||
| 1 | Do you easily get angry? | ||
| 2 | Do you often sleep badly? | ||
| 3 | Do you get headaches a lot? | ||
| 4 | Do you take sleeping pills (药片)? | ||
| 5 | Do you find it difficult to relax? | ||
| 6 | Do you usually hide your feelings? | ||
| 7 | Do you smoke and drink a lot to keep quiet? | ||
| 8 | Do you find it difficult to put your heart into something? |
If you answer “Yes” to more than two of these questions, you are one of those people with stress. So what can you do about it? Doing relaxing exercises, talking with friends and listening to light music are all usual ways of relieving(减轻) stress. However, doctors now say that there are easier ways — people should laugh and smile more often. When you laugh and smile, your body relaxes. They also say that people, especially men, should cry more often, because crying is the natural way of relieving stress.
If you are riding a bike in foreign countries, you need to know what these traffic signs mean.
| 1 |  | This sign means “walk”, you can cross the street along with other people. |
| 2 |  | This sign is the “don't walk” sign. It means you should stop to wait for a while until the sign of “walk” is showing. |
| 3 |  | This sign means that there is a bike lane. If you see such a sign, you must use the bike lane. |
| 4 |  | Car drivers and bike riders must come to a complete stop at “STOP” signs. |
| 5 |  | This sign means you are coming to a zebra crossing. You must slow down to allow people in the zebra crossing to cross the street. |
| 6 |  | This sign means parts of the road are rough. Be careful! Rough roads make you fall off your bike. |
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