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
2023-08-29
61
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.
26. What is the result of using computer in our daily life?
27. What is the cause of eyestrain?
28. 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 strain...”(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/2968662.html
相关试题推荐
[originaltext]CaptainJosephMackey’sairplanewasflyingovertheoceanon
[originaltext]CaptainJosephMackey’sairplanewasflyingovertheoceanon
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.H
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.H
[originaltext]Investmentinthepublicsector,suchaselectricity,irrigat
[originaltext]Investmentinthepublicsector,suchaselectricity,irrigat
[originaltext]M:Goodmorning.CanIhelpyou?W:GoodMorning.We’dliketobo
[originaltext]M:Nancy,whatclassesareyoutakingthissemester?W:I’mnots
[originaltext]Soccerisplayedbymillionsofpeopleallovertheworld,b
[originaltext]Soccerisplayedbymillionsofpeopleallovertheworld,b
随机试题
I’drather_______anoteonherdesksothatshewouldnotbesonervous.A、left
Googlerecentlyintroducedanewservicethataddssocial-networkingfeature
Whenyoubuylifeinsurance,youwantapolicythatfitsyourneedsatarea
A. B. C. D.
以下各种建筑平面中何者对节能最不利?()A.圆形 B.正三角形 C.长宽
导游在执业过程中应当携带______、佩戴______,并开启______。(
阅读材料,根据要求完成教学设计任务。 材料一《义务教育物理课程标准(2011年
A.沙丁胺醇B.肾上腺素C.酚妥拉明D.多巴胺E.哌唑嗪对α,β受体和多巴胺受体
股东大会只能一年召开一次。()
某施工单位承建一立井工程。应建设单位要求,合同约定建成后的井筒涌水量不超过lOm
最新回复
(
0
)