首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Eye Problems 1 Our eyes are under a great deal of strain these days as computer work, television viewing, night driving, and
Eye Problems 1 Our eyes are under a great deal of strain these days as computer work, television viewing, night driving, and
admin
2014-06-13
118
问题
Eye Problems
1 Our eyes are under a great deal of strain these days as computer work, television viewing, night driving, and even sunshine are making exceptional demands. Sunlight, especially in the summer, is now regarded as one cause of cataracts(白内障).
2 The thinning of the ozone(臭氧)layer means more short-wave ultraviolet(UV)rays(紫外线)are reaching the earth, and these are the biggest risk factor for clouding the lens of the eye. Ultraviolet rays increase the risk of changes to the cornea(角膜)causing clouded vision and eventually cataracts. The rays can be shielded only by anti-UV lenses. However, our eyes are not sufficiently protected by fashion sunglasses.
3 "Poor night vision and eye fatigue are noticeably more common, and there has been a big increase in minor eye complaints in the over-40s, " says Dr. Mireille Bonnet, who took part in recent research. She says that the six muscles controlling each eye move more than 100, 000 times a day and that everyone should learn to exercise their eye muscles and allow them to rest.
4 It was traditionally thought that near- or far-sightedness were inherited conditions and could not be influenced by environmental factors, but new research is challenging this assumption.
5 Recent studies suggest that up to 80 percent of schoolchildren in the United States and western Europe are nearsighted. Years of focusing on close, two-dimensional work causes most children to become at least slightly nearsighted by the age of 10, say the researchers.
6 Problems with night vision, which affect around 25 percent of people, are also on the increase because of computer use. Using computer screens means the eye must operate in electromagnetic fields(电磁场)that make it work harder. It is estimated that 25 to 30 percent of people have eye conditions, such as difficulty with night vision, which result from staring at a screen.
A. The Development of Poor Night Vision
B. The Greatest Threat to the Eyes
C. The Function of Sunglasses
D. The Reason for Children’s Nearsightedness
E. The Effects of Computer on the Eyes
F. The Ways to Reduce Eye Complaints
Paragraph 2
选项
答案
B
解析
文章第二段第一句便指出,过多的紫外线透过臭氧层是引起眼睛品状体模糊的最大危险因素,并进一步分析了原因,故选B。
转载请注明原文地址:https://kaotiyun.com/show/qA1d777K
本试题收录于:
职称英语卫生类C级题库职称英语分类
0
职称英语卫生类C级
职称英语
相关试题推荐
Computerpeopletalkalotabouttheneedforotherpeopletobecome"computer-literate",inotherwords,tolearntounderstand
Inthe1950s,thepioneersofartificialintelligence(AI)predictedthat,bytheendofthiscentury,computerswouldbeconversi
ThePlanningCommissionassertsthattheneededreductioninacutecarehospitalbedscanbestbeaccomplishedbyclosingthesm
ThePlanningCommissionassertsthattheneededreductioninacutecarehospitalbedscanbestbeaccomplishedbyclosingthesm
ThePlanningCommissionassertsthattheneededreductioninacutecarehospitalbedscanbestbeaccomplishedbyclosingthesm
Inthe1920s,demandforAmericanfarmproductsfell,asEuropeancountriesbegantorecoverfromWorldWarIandinstitutedaus
Inthe1920s,demandforAmericanfarmproductsfell,asEuropeancountriesbegantorecoverfromWorldWarIandinstitutedaus
1.AccordingtotheWallStreetJournal,"Moreandmoreshoppersarebypassinghouseholdnamesforthecheaper,no-nameproducts
1.AccordingtotheWallStreetJournal,"Moreandmoreshoppersarebypassinghouseholdnamesforthecheaper,no-nameproducts
随机试题
以下关于用况模型特点的描述错误的是()
大型企业应树立的战略思想除有规模化经营思想、集约化经营思想外,还应树立
男性,55岁,进行性吞咽困难三个月,体重下降5kg,查体无阳性所见。对该病人最可能的诊断是
下列各项中符合单纯性甲状腺肿的实验室检查结果有
漏出液以哪种细胞为主
甲偶然在一处批发市场发现大量侵犯其专利权的设备,销售商为乙,而供货商为丙,乙对侵权行为并不知情,下列表述正确的是:
小导管注浆施工应根据土质条件选择注浆法,在砂卵石地层中宜采用()。
甲公司为增值税一般纳税人,适用的增值税税率为17%,假定不考虑除增值税以外的其他税费。甲公司对投资性房地产采用公允价值模式进行后续计量。甲公司与房地产相关的业务资料如下:(1)2011年1月,甲公司开始自行建造一栋办公楼并于当月购入工程物资一批,价款
下列选项中,属于第二次工业革命时期的发明的是()。
最近10年,地震、火山爆发和异常天气对人类造成的灾害比数十年前明显增多,这说明,地球正变得对人类愈来愈充满敌意和危险。这是人类在追求经济高速发展中因破坏生态环境而付出的代价。以下哪项如果为真,最能削弱上述论证?
最新回复
(
0
)