B
You finish all your schoolwork and sit back in your chair. Suddenly you have a headache and find your eyes are painful. What’s going on? Doctors say that many students are spending too much time in front of screens, especially on weekends. The following might be of some help to you.
Follow the 20-20-20 rule. This gives your eyes a break from long screen time. It suggests looking at something at least 20 feet away for 20 seconds after 20 minutes of work on the screen. You can then go on working.
Studies show that people blink (眨眼睛) less often when looking at a screen. Keep your eyes wet by blinking often or using eye drops. It’s better to ask a doctor for advice first.
Sit up straight about an arm’s length away from the screen. Make sure you’re looking down at your screen at a small angle. Stand up and exercise often to avoid neck and shoulder pains.
What about blue light blocking glasses (防蓝光眼镜)? They may look cool, but a study shows that blue light isn’t the biggest cause of eye tiredness. So ask doctors about computer glasses before putting them on.
()6. How does the writer start the passage?
A. By telling a story.
B. By giving an example.
C. By asking a question.
D. By asking for advice.
()7. What are the key words in the 20-20-20 rule?
A. 20 minutes, 20 feet, 20 times.
B. 20 seconds, 20 times, 20 feet.
C. 20 feet, 20 seconds, 20 minutes.
D. 20 times, 20 minutes, 20 seconds.
()8. Which of the following best explains the meaning of the underlined sentence in the text?

()9. In which part of a magazine can you read the text?
A. Health.
B. Culture.
C. Sports.
D. Travel.

Ⅱ.6.B 7.C 8.D 9.A