18.Smartphone,poor sight
Look around and you'll see people busy on their smartphones.Smartphones do make our lives easier.But have you ever thought about what they mean to your eyes?
According to a study,half of British people own smartphones and they spend an average(平均)of two hours a day using them.There has been a 35% increase in the number of people in the UK who suffer from shortsightedness since smartphones were introduced there in 1997.
Staring(盯)at smartphones for a long time gives you dry eyes.When looking at something in the distance,your eyes automatically blink (自动眨眼)a certain number of times.However,when you look at things closer to your face,the blinking slows down.This reduces the number of tears and makes your eyes uncomfortable.Another bad habit is using smartphones in dark rooms before going to sleep.If you look at a bright screen while your pupils(瞳孔)become larger,too much light enters your eyes.This can be bad for the eyes and cause a disease called glaucoma(青光眼).
While you're probably not going to stop using to your smartphone,there are a few things you can do to protect your eyes.Hold your phone at least 30centimetres away from your eyes when using it.Take a break every hour and try the following:look at something at least five meters from you and then focus on(聚焦于) the tip of your nose.Repeat this several times.It should reduce the discomfort in your eyes.
50.The article is mainly aboutB.
A.the rules to obey when using smartphones
B.the harm that smartphones do to users'eyes
C.the reason why teenager get shortsightedness
D.advantages and disadvantages of smartphones
51.Which of the following is suggested by the writer?A
A.Don't use the phone for over an hour without a break.
B.Hold the phone at least half a meter away from the eyes.
C.Turn off your phone for a couple of hours every day.
D.Look at something green far away for several minutes.
52.This article is written to advise peopleD.
A.not to buy smartphones
B.to stop using smartphones
C.to make full use of smartphones
D.to use smartphones properly.
分析 短文大意:本文主要介绍了使用智能手机的危害,告诉我们长时间使用手机会引起眼睛干涩和青光眼.并建议我们连续使用手机不超过一个小时.
解答 50题答案:B 主旨大意题.根据短文第二段描述According to a study,half of British people own smartphones and they spend an average(平均)of two hours a day using them.There has been a 35% increase in the number of people in the UK who suffer from shortsightedness since smartphones were introduced there in 1997用智能手机近视增加及全文的整体概括,可知这篇短文主要讲述的是智能手机对我们眼睛的伤害.故选B.
51题答案:A 细节理解题.根据短文最后一段Take a break every hour and try the following 描述,可知医生建议我们,每使用手机1小时就休息一下.故选A,使用手机不要不休息地超过一个小时.
52题答案:D 主旨大意题.根据最后一段While you're probably not going to stop using to your smartphone,there are a few things you can do to protect your eyes.Hold your phone at least 30centimetres away from your eyes when using it.Take a break every hour and try the following:look at something at least five meters from you and then focus on(聚焦于) the tip of your nose.Repeat this several times.It should reduce the discomfort in your eyes.可知本文主要介绍了使用智能手机的危害,并向人们介绍了如何恰当使用手机的建议.故选D.
点评 本文是一篇日常生活类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.