题目列表(包括答案和解析)
Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
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 on (反射) the screen. If the window 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 (肘部) at the same height as the keyboard. 3) Stop something 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 the 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 all be in front of your eyes. Your forearms(前臂), wrists, hands and the upper(上部) part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and necks.
Enjoy your computer, but use it safely.
1.A computer screen may injure your eyes if __________.
A. you sit 60 centimeters away B. you remember to look away
C. your eyes are too close to it D. the window is on your left or your right
2. Hand and wrist injuries are caused when you _________.
A. get plenty of exercise B. move in the same way again and again
C. rest your wrists on something D. keep your elbows as high as the keyboard
3.Your eyes and hands will be safe if __________.
A. you work near a window B. you often take a rest from working
C. you use a keyboard for a long time D. the window is behind you
4.It is good for your back and neck if you sit __________.
A. in the right way B. for many hours
C. with the screen below your eyes D. with your back leaning forward
5. What would be the best title for the passage?
A. How to protect your eyes B. How to protect your hands and wrists
C. How to use a computer safely D. How to protect your back
A teenage girl couldn't stand(忍受) her family rules,so she left home.
She wanted to be a star and became 1 . But she had a little education and a few years later,she had to ask for food on the street for a living. Now her father has 2 . Her mother is an old woman. But she is still 3 her daughter. She went to every corner of the city. Everywhere she goes,she put up a big photo of herself on the wall. At the lower part of the 4 she writes,“I still love you …Come back home!”
One day,the daughter saw one of the photos. She was so surprised that she couldn't believe her 5 . “Is that my mother?”She moved 6 and read the words,“I still love you…” She cried. When she got home,it was early morning. She pushed the door. The door 7 itself. She rushed to the bedroom at once. Her mother was sleeping there. She woke her mother up,“It's me!Your daughter is back home!”The mother and daughter looked at each other excitedly,full of 8 tears. The daughter asked,“ 9 is the door unlocked?A thief could get in.” The mother answered softly,“The door 10 locked after you left. We miss you all the time. We believe that you'll come back some day.”
The door of parents’ love for their children will never be closed.
1. A.famous B.poor C.pretty D.polite
2. A.lost B.died C.worried D.changed
3. A.looking up B.looking at C.looking for D.looking down
4. A.wall B.photo C.house D.door
5. A.ears B.nose C.head D.eyes
6. A.farther B.closer C.better D.cleaner
7. A.opened B.broke C.closed D.locked
8. A.sorry B.wonderful C.sad D.happy
9. A.When B.Why C.Where D.Which
10. A.never B.always C.sometimes D.often
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