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
2023-09-06
69
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. (26) 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. (27) 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.
(28) 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
①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。②需要在听到事实细节的基础上推理作答。
转载请注明原文地址:https://tihaiku.com/zcyy/2990653.html
相关试题推荐
[originaltext]Rightuptothe19thcentury.(32)OxfordandCambridgewere
[originaltext]Watchinghismotherdrownandthenclingingtoaninnertube
[originaltext]W:IhaveheardthatyouaregoingtoCalifornianextweek.What
[originaltext]W:IhaveheardthatyouaregoingtoCalifornianextweek.What
[originaltext]W:IhaveheardthatyouaregoingtoCalifornianextweek.What
[originaltext]W:Tellmealittlebitaboutyourself,please.M:MynameisDav
[originaltext](32)Yourassignmentsthistermwillbetowritetwomajorres
[originaltext](32)Yourassignmentsthistermwillbetowritetwomajorres
[originaltext](32)Yourassignmentsthistermwillbetowritetwomajorres
[originaltext]Recently,amanwhowasalwaysingoodhealth,spentaweek
随机试题
我发现自己发话太突然了,也说得太多了,一时间感到左右为难。我要求她让我想一分钟,她便坐在那里,很不耐烦,又很激动,神情有点儿快乐而舒坦,仿佛一个人刚把病牙拔
TheroleofeyecontactinaconversationalexchangebetweentwoAmericans
Weareallnaturallyattractedtopeoplewithideas,beliefsandinterestsl
A. B. C. D.
结脉与促脉的主要不同点,在于()(2001~2005)A.脉位的浮沉
某中年男患者因心脏病发作被送到急诊室,症状及检查结果均明确提示心肌梗死。患者此时
27.换流阀水冷系统、阀厅空调系统、火灾报警系统及图像监视系统等工作,无需将高压
产于东北的道地药材是A.地黄、菊花 B.人参、五味子 C.薄荷、苍术 D.
兴盛公司是某期货交易所的会员,2013年7月8日卖出大豆期货合约100手,当天大
在llOkV配电装置的设计中,当在高海拔地区采用SFs全绝缘封闭电器时,()
最新回复
(
0
)