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
专升本
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how importa
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how importa
admin
2012-08-05
25
问题
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.
People who are near-sighted can only see things that are very close to their eyes.’ Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them."
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle (角度). To prove this to yourself, look at an object out of one eye; then look at the same object out of the other eye. You will find the object’s relation to the background (背景) and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
People who suffer from astigmatism ______.
选项
A、have a curable disease in their eyes
B、have eyes that are not exactly the right shape
C、have a difficulty that can be corrected by an operation
D、have an eye difficulty that cannot be corrected by glasses
答案
B
解析
此考题为细节题。根据第4段第1句Other people do not see clearly because their eyes are not exactly the right shape.They have what is called astigmatism,就可以断定B正确。
转载请注明原文地址:https://kaotiyun.com/show/8IeC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Everywomandreamsofreceivingahugepricelessdiamond.Nowspacescientists【C1】______thattheyhavediscoveredthelargestdi
WelcometoLanguageuponThames.ThisbrochurehasbeendesignedtogiveyouanoverviewofourLanguageSchoolandthecourses
Oh,thefireisgettingnearerandnearerItis_____ourchildrenandoldpeople.
Allthestudentsenviedhim______havingsucceededintheTOFELtest.
TodayisSeptemberthIt’s_____DayLet’sgoandbuysomeflowersforourteachers.
ThecostofmedicalcareintheUnitedStatesisveryhigh.Thetimeandmoneythatdoctorsspendontheirmedicaleducationare
Unlesswespendmoneyspottingandpreventingasteroidsnow,onemightcrashintoEarthanddestroylifeasweknow,saysomesc
Takingmoreexercisewillpreventyou______weight.
It______himmorethanwhatwasreasonabletohavehisdishwasherrepaired.
Thosedayspeoplethroughouttheworldwerelookingforwardtothedayofvictorywithgreat______.
随机试题
关于K-B纸片扩散法操作的描述,下列说法错误的是A.各纸片中心距离不小于24mmB.纸片距平板内缘不应大于15mmC.直径90mm的平皿可贴6张纸片D.纸片贴牢后避免移动E.35℃培养16~18h后阅读结果
A.肾动脉狭窄B.嗜铬细胞瘤C.原发性醛固酮增多症D.库欣综合征下列各病例最可能的诊断为女性,45岁。表现为肌无力,烦渴,多尿。血压轻度升高。实验室检查:低血钾,高血钠,代谢性碱中毒
A.清燥润肺B.轻宣温燥C.润肺益胃,降逆下气D.轻宣凉燥,理肺化痰E.益气滋阴,固肾止渴
根据《环境影响评价公众参与暂行办法》,建设单位或者其委托的环境影响评价机构(以下简称“听证会组织者”)决定举行听证会征求公众意见的,应当在举行听证会的(),在该建设项目可能影响范围内的公共媒体或者采用其他公众可知悉的方式,公告听证会的时间、地点、听
It’shardtosayforsurewhatthenextbigthingwillbe,buttheseitemsmadethelistof10emergingtechnologytrendsthatwil
四川古建筑的主要特色有()。
“天时不如地利,地利不如人和”反映的是()道德规范的具体要求。
在文言文知识总结课上,教师准备向学生举几个古今异义的例子,以下各句不合适的是()。
2014一年2月18日上午10点,近地小行星2000EM26以每小时2万7千英里的时速掠过地球表面。2013年2月,一行星撞击俄罗斯,造成1200余人受伤。两事件在时间点十分接近,天文学家百思不得其解。但有一点可以肯定的是
A、Mrs.Fisherwantstogoabroad.B、Mrs.Fisherisinhospital.C、Mrs.Fisherhasnofamily.D、TherearethreepeopleinMrs.Fi
最新回复
(
0
)