Myopia(近视) in China
How do children get myopia?
If a child spends more than 7 hours a week on the computer or mobile phone, he or she may have myopia.
Fewer outdoor activities increase the risk of getting myopia.
Parents who have myopia may have a myopic child.
14.5% of the children under 6 ← → 81.0% of the senior high school students
36.0% of the primary school students ↓ 71.6% of the junior high school students
▲
※ At least 2 hours of outdoor activities every day.
※ The 20/20/20 rule when using the computer or mobile phone: every 20 minutes, look at something 20 feet(英尺) away for 20 seconds.
※ Get enough sleep.
()31. Which can show the change in the number of myopic children as they grow?
B.
()32. Which of the following can be put in ▲?
A. Where should children have fun?
B. Why should children do sport?
C. What should children do?
()33. How long should children play outside every day?
A. At least 120 minutes.
B. At least 90 minutes.
C. At least 60 minutes.
B

31.C 32.C 33.A