题目内容
【题目】If you need glasses to read this, you are among the majority of Chinese students. That’s because most students in China are short-sighted which means they can only see things close up and distant things will be blurry. Four-fifths of high school students wear glasses and now more and more children in primary school need glasses, too.
This epidemic of poor eyesight has two very simple causes: too much time spent indoors studying and too little time spent outdoors playing. Reading and writing for hours and hours, sometimes in poorly lighted rooms, causes eyesight to weaken. But students have to do this because there is so much pressure on them to succeed in school. And because they spend so much time indoors at school and at home, they have less time to spend outdoors enjoying the sun.
The sun, as a consequence, is important in developing good eyesight. Exposure to daylight releases a chemical in the eyes that prevents, or at least delays, short-sightedness. According to a study by Ian Morgan of Australian National University, Australian children and Chinese children have the same level of eyesight before they start school, but once they enter primary school, Chinese children only spend about an hour a day outside, while Australian children spend three to four hours each day in the sunshine. The result is that while about 40 percent of Chinese primary school students need glasses, only three percent of Australian children do.
Wearing glasses may not seem like a big deal. For some, wearing glasses can even be an opportunity to make a fashion statement. But poor eyesight at a young age can have serious long term consequences. As you get older, your eyesight can worsen and lead to things like macular degeneration(黄斑变性), a condition of the eyes for which there is no cure and which can eventually lead to blindness.
With all that in mind, don’t you think it’s time to give your eyes a break? Try spending a little less time inside and go for a walk in the park, instead. It’s the healthy thing to do and your eyes will thank you for it.
【1】What does the underlined word “blurry” mean?
A. unpopular. B. unpleasant.
C. unclear. D. unconscious.
【2】How should the students protect their eyesight according to the passage?
A. They should study less and less.
B. They should stay longer outdoors.
C. They should wear sun-glasses.
D. They should have a longer rest in bed.
【3】It can be inferred from the passage that _____ is to blame for the poor eyesight of Chinese children.
A. the ever-worsening bad weather
B. the ever-increasing burden of study
C. the ever-decreasing sunny days
D. the ever-decreasing period of study time
【4】What is the purpose of this article?
A. To explain why Chinese students are poor-sighted.
B. To admire Australian children’s good eyesight.
C. To criticize the present education system.
D. To call on people to protect Chinese children’s eyesight
【答案】
【1】C
【2】B
【3】B
【4】D
【解析】
试题分析：这是一篇说明文。介绍了导致视力下降的两种常见原因以及保护视力的最佳方式：多参加户外活动，多晒太阳。
【1】词义推测题。由该词所在的句意可知，近视意味着只能看清眼前的东西，远处的事物将会是“模糊不清楚的”。注意四个选项中的表否定意义的前缀un-的用法。故选C。
【2】细节理解题。综合全文可知。阳光有益于视力，本文呼吁人们不要宅在家里，多参加户外活动以保护视力。 故选B。
【3】推理判断题。由文章第二段可知，导致视力下降的主要原因有两个：呆在室内学习的时间太长和户外玩乐的时间太少。而这两种原因的根源则是there is so much pressure on them to succeed in school.“在学校，为了成功，有太多的压力在他们身上”。故选B。
【4】作者意图题。本文的写作目的是呼吁人们去保护中国孩子的视力。故选D。
