C
You finish all your schoolwork and sit back in your chair. Suddenly you feel 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.
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 pain - free.
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.
Sit up straight about an arm's length away from the screen. Make sure you're looking down at your screen. 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.
9. How does the writer start the text? ()
A. By telling a story.
B. By giving an example.
C. By asking a question.
D. By asking for advice.
10. 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.
11. Which of the following best explains the meaning of the underlined sentence in the text? ()

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

9. B 10. C 11. D 12. A

D
Stomach flu is one of the most unpleasant of common illnesses. It spreads easily. That's especially true if someone in your family has it. A virus can cause stomach flu, but not the same one that causes common flu. There's no medicine to make it go away at once. But there are some things you can do to stop catching it.
You can stop stomach flu by washing your hands often. Use hot water and soap to wash your hands. Using soap is better than using nothing, but it doesn't work very well against stomach flu. That's because soap can't kill virus completely.
The virus that causes stomach flu is hard to kill. Normal cleaners(清洁剂)won't always get rid of it. So mix bleach(漂白剂)with water, and use that to clean your house. If someone in your family is sick, remember to clean things that person has touched.
Dishwashers are better at killing viruses than washing the dishes by hand. That's because they keep the dishes hotter for a longer time. Many viruses can live in your washing machine. So wash clothes with hot water and use bleach, if possible. You may even run the washing machine with no clothes, just hot water and bleach. This will kill any virus in it.
If you do get the stomach flu, drink as much water as possible. If you're feeling better, don't return to work or school right away. You can still spread the disease for a few days after you feel better. If you have a fever, wait at least 24 hours after it ends before going out. This will help stop other people from getting sick.
Stomach flu is awful, but by following these tips above, you can keep away from it.
13. From Paragraph 1, we know that . ()
A. stomach flu is a pleasant common flu
B. medicine can make stomach flu go away at once
C. if someone around you catches stomach flu, you may catch it too
D. the same virus can cause stomach flu and common flu
14. What does the underline phrase “get rid of” probably mean in Paragraph 3? ()
A. 逃离
B. 除去
C. 避免
D. 变糟
15. Which of the following is the best to kill viruses? ()
A. Washing your hands with water and soap.
B. Mixing bleach with water to clean your house.
C. Washing the dishes and clothes with bleach by hand.
D. Running the washing machine without clothes, just with hot water and bleach.
16. What should we do after a fever ends? ()
A. Take as little medicine as possible.
B. Return to work or school at once.
C. Wait at least 24 hours before going out.
D. Go to see the doctor again.

13. C 14. B 15. D 16. C