题型:阅读选择 题类: 难易度:困难
湖北省襄阳市襄州区2023-2024学年八年级上学期期中英语试题
Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bicycle and break your arm, it happens very quickly. But computer injuries happen slowly.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect(反射)on the screen. If the windows is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules:(1)Rest your wrists on something.(2)Keep your elbows(肘)at the same height as the keyboard.(3)Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in a wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms(前臂), wrists and hands should all be parallel to (与……平行) the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
Hi Leah, We've been on vacation in Taipei for a week and tried all kinds of food. We love the night markets here. We're going to Tainan next by train. We'll be there for seven days, and then we'll fly home. Love, Megan and Dan | Leah Goldberg 30782 Clarence Street Baden, Pennsylvania 15005 USA |
Dear Grandma and Grandpa, Our five-day holiday in Kyoto is almost over. Coming here for the cherry blossoms (樱花) is so worth it. Dad has taken a lot of pictures of the beautiful flowers. However, the best part of the trip is shopping in the city. Mom and I buy so many Japanese things that we can hardly carry them back! See you soon! Damien | Fran and Luke Lawrence No. 32, Bade Road, Sec. 3 Taipei 10559, Taiwan ROC |
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