练习 | VOA常速:经常完全眨眼有助于避免干眼病

练习 | VOA常速:经常完全眨眼有助于避免干眼病

1.8分钟 1712 155wpm

经常完全眨眼有助于避免干眼病

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VOA常速:经常完全眨眼有助于避免干眼病

燕山大学 刘立军 编写

TRANSCRIPT

Kids are addicted to cell phones, tablets, anything with electronic screens. The problem is it’s bad for their eyes.

What we’re beginning to see is now with the use particularly of screens, the digital screens, tablets, smart phones that actually even children are reporting dry eyes.

Tears contain oil. In this YouTube video, the doctor is pointing out the oil glands that are in the eyelid.

The tear film on the front of your eyes is there all the time, not just when you cry. It’s less than a tenth of the thickness of a human hair, but without it, you wouldn’t see at all.

With kids spending more time in front of a screen, for pleasure and for school, many may be at risk without knowing it. When you concentrate very hard on a task, such as on a computer screen, you blink less and also instead of fully blinking, you partially blink. And so what’s happening is damage is being done to the front of the eye.

Tears aren’t being produced. They evaporate and leave behind the salty content of the tear which can do further damage to your eyes. But now there is an app to diagnose dry eyes. At this demonstration in London, the app asks users to answer simple questions to determine how long they can comfortably stare at a computer screen without blinking. We’re actually using the technology but that could cause problems if you use a lot of it to actually help us with the diagnosis.

Those who try the app are then tested for dry eye. But doctors say even if you don’t have the app, make sure to blink fully, and blink often whenever you’re in front of a tablet or computer screen and remind your children to do the same.

Carol Pearson, VOA News.

Adapted from http://www.kekenet.com/broadcast/201808/562227.shtml

VOCABULARY

1. gland n. an organ in a person's or an animal's body that produces a substance for the body to use. There are many different glands in the body. 腺。例如:a snake's poison glands蛇的毒腺
2. eyelid n. either of the pieces of skin above and below the eye that cover it when you blink or close the eye 眼睑;眼皮
3. evaporate v. to disappear, especially by gradually becoming less and less (逐渐)消失,消散,衰减。例如:Her confidence had now completely evaporated. 她的信心已消失殆尽。

QUESTIONS

Listen to the news and choose the best answer to each question you hear.

Q1. What’s the problem of kid’s using electronics with electronic screens?
A. It’s bad for their eyes. 
B. It’s bad for their ears. 
C. It’s bad for their brains.  
D. It’s bad for their studies.

Q2. Which can further damage our eyes?
A. Oil glands in the eyelid.
B. Salty content of the tear.
C. Tear film on the front of our eyes.
D. Blinking often when using a computer.

Q3. What’s the doctors’ suggestion to avoid dry eye if we don’t have the app to diagnose it?
A. Try to blink partially with eyedrops.
B. Try to blink partially without eyedrops.
C. Try to blink fully and often.
D. Try to blink fully with eyedrops.

KEY 

Q1. A。细节题。命题出处:Kids are addicted to cell phones, tablets, anything with electronic screens. The problem is it’s bad for their eyes.

Q2. B。细节题。命题出处:Tears aren’t being produced. They evaporate and leave behind the salty content of the tear which can do further damage to your eyes.

Q3. C。细节题。命题出处:Those who try the app are then tested for dry eye. But doctors say even if you don’t have the app, make sure to blink fully, and blink often whenever you’re in front of a tablet or computer screen and remind your children to do the same.


  • 时长:1.8分钟
  • 语速:155wpm
  • 来源:刘立军 2018-09-27