首页
登录
职称英语
[originaltext] Nowadays more and more people have to spend lengthy hours bef
[originaltext] Nowadays more and more people have to spend lengthy hours bef
游客
2023-08-07
26
管理
问题
Nowadays more and more people have to spend lengthy hours before computers. Computers are almost indispensable to modern life. No one can imagine the results if the computer he uses daily would break down. But computers also cause some problems. Among them is the potential harm to human bodies, especially to eyes.
Working long hours at a computer can cause eyestrain. Recently a letter to the New England Journal of Medicine provides one explanation for the problem. Japanese researchers studied some 50 office workers who spent an average of three hours a day at a terminal. Since blinking keeps eyes moist—thus reducing strain—the researchers counted blinking rates under different conditions. The workers averaged 22 blinks a minute when relaxed, ten blinks a minute while reading a book and just seven a minute while reading text on a computer screen. Thus people keep the least moisture in their eyes when they are working at a computer and feel more strained. Furthermore, the computer workers also kept their eyes open wider, which meant moisture evaporated more quickly.
If you work at a computer screen, close your eyes periodically. That spreads a tear film and rests your eyes. And remember to blink more often. In this way you can reduce the side effect caused by using computer to a greater extent.
16. What is the result of using computer in our daily life?
17. What is the cause of eyestrain?
18. What are those who spend long hours before computers supposed to do?
选项
A、Radiation from the terminal.
B、Stress in working hours.
C、Without adequate eye-drops.
D、Less or little moisture in the eyes.
答案
D
解析
推断题。短文提到:“…blinking keeps eyes moist—thus reducing straim.”(眨眼使眼睛保持湿润,从而减少眼疲劳);而短文还指出,使用电脑时人们的眨眼频率仅为每分钟7次,非常低,因此眼睛的湿润度很低,由此引起眼疲劳。故D正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2906077.html
相关试题推荐
[originaltext]Haveyoueverhadsomeonetrytoexplainsomethingtoyouado
[originaltext]Haveyoueverhadsomeonetrytoexplainsomethingtoyouado
[originaltext]TodayI’dliketotalkaboutthedangersofbeingtoocollabor
[originaltext]TodayI’dliketotalkaboutthedangersofbeingtoocollabor
[originaltext]Inlastweek’slecture,wediscussedthecharacteristicsofth
[originaltext]Inlastweek’slecture,wediscussedthecharacteristicsofth
[originaltext]VirtuallyeveryAmericancanrecognizeadollarbillatamere
[originaltext]VirtuallyeveryAmericancanrecognizeadollarbillatamere
[originaltext]VirtuallyeveryAmericancanrecognizeadollarbillatamere
[originaltext]Weareverysusceptibletotheinfluenceofthepeoplearou
随机试题
以下关于选题的表述中,错误的是()。A.选题是一个出版社工作的行动纲领 B.
某学校每天给学生提供一包牛奶,留下大量废弃的牛奶包装袋,冯老师利用它们开展以班级
有机磷农药中毒所出现的症状大致可分为毒蕈碱样症状、烟碱样症状及中枢神经系统症状三
日记调查、留置调查属于()。 A.询问法 B.实验法 C.观察法
图中,教师的行为()。 A、正确,有利于促进家校合作
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
主、副井贯通后的主井临时罐笼改装期问,井下运输一般采用()。A.V形矿车 B
热源和散热设备分开设置,由管网将它们连接,以锅炉房为热源作用于一栋或几栋建筑物
下列油漆工程量计算规则中,正确的是()。A.门窗油漆按展开面积计算 B.木扶
决定休克病人补液量较可靠的依据是A.中心静脉压 B.精神状态 C.尿量 D
最新回复
(
0
)