江苏省教育厅5月7日公布的2011年学生体质健康调查结果显示，学生近视率仍维持在高位水平，且越来越低龄化。请根据下表所提示的内容，用英语写一篇短文，并发表自己的观点。    
现状：大约70%学生眼睛近视
主要原因：
1. 睡眠不足
2. 长时间看书、做作业、用电脑等
预防方法：
1. 做眼睛保健操，多进行体育活动
2. 养成正确的用眼习惯
你的观点：… ….（至少一条）
注意：
1. 词数80左右。开头已经写好，不记入总词数；
2. 内容必须包括上表中的要点，可作必要的发挥；
3. 条理清楚、语句连贯；
4．文中不得出现真实的地名、校名和人名等信息。
  （参考词汇：近视的 shortsighted）

【参考范文】

     The survey shows that many students have become shortsighted at a very young age. At present, about 70% of the students are shortsighted. Here are some main causes.

     Some students may not have enough sleep. Some students spend too much time reading or doing their homework without a rest. Some students even like to watch TV or use computers for a long time.

     In order to have good eyesight, we should do eye exercises every day. We can also try to do more sports in our spare time. We should have the good habit of using our eyes.

     I think all of us should understand the importance of protecting eyes and try our best to protect them.