题型：单词拼写（语篇） 题类：常考题 难易度：普通
浙江省稠州中学教育集团2016~2017学年七年级下学期英语学科期中学力检测卷
Nowadays, you can see many people busy on their smartphones(智能手机) if you look a. Smartphones make our lives easier. But have you ever thought a what they mean to your eyes? Staring(盯) at smartphones for long time gives you dry eyes and even causes a disease (叫做) glaucoma(青光眼).
While you're probably not going to stop using your smartphone, there are a few things you can do to protect your eyes. Hold your phone at least 30 cm away from your eyes when using it. Take a break every (小时) and try the following: look at something at least five meters away from you and then focus on the tip of your nose. Repeat this s times. It should reduce(减少) the discomfort in your eyes.
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