首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 Eye Problems1 Our eyes are under a great deal of strain these days as c...
共用题干 Eye Problems1 Our eyes are under a great deal of strain these days as c...
admin
2020-12-24
35
问题
共用题干
Eye Problems
1 Our eyes are under a great deal of strain these days as computer work,television viewing,nightdriving,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 raysincrease 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 byfashion 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.
选项
Paragraph 6_______
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
答案
E
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晶状体模糊的最大危险因素,并进一步分析了原因,故选B。
文章第三段的第一句便引出了本段的大意是关于夜盲症和眼疲劳,A项最为符合。
文章第五段首先陈述了儿童群体患近视的普遍性,然后论述引起儿童近视的原因,故选D。
文章第六段主要讲述了由于使用计算机而患夜盲症的人群群体比例,以及计算机是如何对人的眼睛产生伤害的,故选E。
由文章第二段第二句可知,夏季日光中过多的紫外线会增加角膜变形的危险,导致视力模糊并最终形成白内障,故选B。
文章第二段第三句中指出,这些紫外线只有通过防紫外线眼镜来防护以保护我们的眼睛,故选D。
由文章第四段可知,传统上,我们认为近视和远视是由遗传因素引起的,故选A。
由文章第六段第一句话可知,大约有25%的人群因为使用电脑而患有夜盲症,并且人群数量还有增加的趋势,故选E。
转载请注明原文地址:https://ti.zuoweng.com/ti/mGEQKKKQ
相关试题推荐
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 TheJoyofLivingAloneMoreandmoreAmericansarelivingalone.Someli...
随机试题
保险人承保的机动车辆必须是被保险人允许的合格驾驶员驾驶的车辆,下列属于合格驾驶员
某可转换债券面额为1000元,规定其转换价格为25元,则10000元债券可转换为
根据《关于防止水泥行业盲目投资加快结构调整的若干意见》,以下不属于严格禁止新建和
下列哪一个IP地址是不可能存在的?
女,24岁,幼年有\"支气管哮喘病\"。反复出现发作性气喘、咳嗽2年,每月发作2~4
普通开放式基金从申购到赎回,一般实行()日回转制度。 A.T+7B.T+5
铁路职工违反规章制度,致使发生铁路运营安全事故,造成严重后果的,给予撤职处分。
急性化脓性根尖周炎时下列哪种排脓方式对根尖周组织破坏最小A.通过根尖孔经根管从冠部缺损处排脓B.通过牙周膜从龈沟或者牙周袋排脓C.通过骨髓腔突破骨膜、皮肤向
丙烯胺类抗真菌的代表药为()。A:伏立康唑B:特比萘芬C:伊曲康唑D:卡泊芬净E:米卡芬净
关于因果关系的认定,下列哪一选项是正确的?()(2016年)A.甲重伤王某致其昏迷。乞丐目睹一切,在甲离开后取走王某财物。甲的行为与王某的财产损失有因果关系