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How much time do you spend looking at yo...

    How much time do you spend looking at your smartphone, tablet or computer every day? These electronic devices help us in many ways, but they may also cause health problems.

Too much screen time can cause eyestrain which leaves your eyes feeling dry and sore and could also affect your eyesight. To help your eyes stay healthy, follow the "20-20-20" rule: every 20 minutes, look at something 20 feet away for 20 seconds.

Your eyes aren't the only parts of your body that could become worse from using electronic devices. People who write a lot of text messages can develop an injury called texting thumb". The repeated movement of typing with thumbs can cause thumb and wrist pain and lead to the loss of grip strength (握力受损).To avoid this, do this exercise: put a rubber band around the tips of your five fingers and open your hand to stretch the rubber band. Repeat this a few times.

Scientific research suggests that electronic devices can also hurt your mind. One of the biggest problems is that using these devices can affect your sleep patterns. Doctors say the screen light stop you from feeling sleepy. So they advise people not to use electronic devices for at least one hour before trying to sleep.

Another serious danger is Internet addiction (). Many people turn to the Internet to ease feelings of stress, sadness, and loneliness. Over time, they might start to depend on the Internet and feel worried if they're not connected. To stop yourself from falling into this kind of trap, limit the amount of time you spend on line.

To use your smartphone or computer safely, just make sure you follow these health tips. Also, remember that there is more to life than looking at an electronic screen.

1.The first 20 of the "20-20-20"rule in the passage suggests ________.

A.how long the break lasts

B.how often you have the break

C.how far you look at objects from you

D.how long you need to take a break

2.Which picture best shows the rubber and exercise according to the passage?

A. B. C. D.

3.The underlined word "they" in Paragraph 5 refers to ________.

A.computer games or Internet B.feelings of stress, sadness and loneliness

C.several serious mind problems D.people who have Internet addiction

4.What's the passage mainly about?

A.Electronic devices can hurt both your body and mind.

B.Looking at screen for too long can cause sore eyes.

C.Typing a lot can develop "texting thumb".

D.The more you depend on the Internet, the less worried you might be.

 

1.B 2.B 3.D 4.A 【解析】 这篇短文主要讲述了智能手机、平板电脑等这些电子设备在很多方面帮助我们,但它们也可能导致健康问题。短文也给出了解决这些健康问题的建议。 1. 细节理解。根据文中“To help your eyes stay healthy, follow the "20-20-20" rule: every 20 minutes, look at something 20 feet away for 20 seconds.” 为了帮助你的眼睛保持健康,遵循“20-20-20”规则:每隔20分钟,看20英尺以外的东西20秒。可知,这个规则建议人们多久休息一次。故选B。 2. 细节理解。根据文中“To avoid this, do this exercise: put a rubber band around the tips of your five fingers and open your hand to stretch the rubber band. Repeat this a few times.” 要避免这种情况,请做这个练习:在你的五个手指尖上套上橡皮筋,张开手来拉伸橡皮筋。重复几次。可知,选项中图片B适合这个动作。故选B。 3. 词句猜测。根据文中“Another serious danger is Internet addiction (瘾). Many people turn to the Internet to ease feelings of stress, sadness, and loneliness.” 另一个严重的危险是网瘾。许多人求助于互联网来缓解压力、悲伤和孤独感。可知下文中“they”指的是“有网瘾的人们”。可知下文是“他们可能开始依赖互联网”。故选D。 4. 主旨大意。Electronic devices can hurt both your body and mind. 电子设备会伤害你的身心;Looking at screen for too long can cause sore eyes. 长时间看屏幕会导致眼睛酸痛;Typing a lot can develop "texting thumb". 打字太多会发展出“texting thumb”;The more you depend on the Internet, the less worried you might be. 你越依赖互联网,你就越不担心。通读整篇短文可知,这篇短文主要讲述了电子设备会对我们的健康不利。可知,这篇短文最好的标题是“Electronic devices can hurt both your body and mind.” 电子设备会伤害你的身心。故选A。
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