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
2023-08-21
68
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-一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/2945644.html
相关试题推荐
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______a
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______a
[originaltext]ThebaldeagleisAmerica’snationalsymbol.However,thespe
[originaltext](20)Sinceearlytimes,peoplehavebeenfascinatedwiththe
[originaltext](20)Sinceearlytimes,peoplehavebeenfascinatedwiththe
[originaltext](20)Sinceearlytimes,peoplehavebeenfascinatedwiththe
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
[originaltext]W:Hi,Jack,(14)haveyoufinishedProfessorSmith’sassignment?
[originaltext]W:Hi,Jack,(14)haveyoufinishedProfessorSmith’sassignment?
[originaltext]M:(9)Hey,anyideaofwhattodothissummervacation?Theredoes
随机试题
Mike:Ifyouarenotbusy,wouldyoubyanychancebeinterestedingoingtothe
[originaltext]Everypersonusesitsownspecialwordstodescribethingsan
事由:假设你是王燕,上个星期不小心把向王老师借的一本关于美国文学的书弄丢了,现在写一封信表达自己的歉意。包括以下内容:1.表达自己的歉意,并真诚
It’sclearthatsocialmedialikeTwitterandFacebookarechangingtheway
已知甲公司产品正常销量为100万件,销售60件可实现盈亏平衡,产品单价为10元,
下列关于建筑物之间防火间距计算的说法,不正确的是()。A.变压器与建筑物、储罐
下列关于我国检察制度的说法错误的是:A、检察制度是指国家设立专门机关代表被害人检
主寒证的舌色有A.紫舌 B.绛舌 C.青舌 D.红舌 E.淡白舌
细菌经紫外线照射会发生DNA损伤,为修复这种损伤,细菌合成DNA修复酶的基因表达
共用题干 某工程项目的建设单位通过公开招标方式确定某施工单位为中标人,双方签订
最新回复
(
0
)