题目内容
阅读下面短文，根据短文内容回答问题
Are you nearsighted (近视的)? Do you wear glasses? Many of you may say “yes”.
In fact, China’s young people have the highest rate (率) of nearsightedness in the world. More than 70 percent of middle school students in China are nearsighted.
In August, a plan to solve this problem was introduced. It aims to cut down the rate of nearsightedness for middle school students to less than 60 percent by 2030. Schools across the country are taking action to meet this goal.
Luoyang Experimental School in Henan started with its desks. It has designed (设计) desks with a board above the desktop (桌面). The board stops students from lowering (降低) their heads too close to their desktops. More than 400 students have used them so far. More students will use them soon. Similarly, the High School Affiliated (附属的) to Renmin University Chaoyang Branch School is now providing desks and chairs according to students’ heights. Studies have shown that proper desk height can prevent (预防) nearsightedness.
Spending more time outside can also reduce (减少) nearsightedness. The Yucai middle School makes sure that its students play outside for at least 80 minutes every day. We have a P.E. class and a 20-minute break in the morning and afternoon to do exercises, "said Sun Zihan, 14.
Staring at screens can also hurt our eyes. Beijing 101 Middle School has a solution to this problem. In its classrooms, there are special boxes for storing students’ cellphones. “We have to hand in our cellphones every morning and get them back after school,” said Huang Jiameng, 15.
1.How many middle school students in China are nearsighted?
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2.Why are the desks designed with a board above the desktop?
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3.How do students reduce nearsightedness in the Yucai Middle School?
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4.Is it bad for our eyes when we stare at the cellphone screens?
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5.What does this passage mainly talk about?
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