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
Children today spend more time stare at computer and 【1】______ TV screens both at school and at home. Scientific 【2】______ studi
Children today spend more time stare at computer and 【1】______ TV screens both at school and at home. Scientific 【2】______ studi
admin
2011-04-11
62
问题
Children today spend more time stare at computer and 【1】______
TV screens both at school and at home. Scientific 【2】______
studies show an epidemic of myopia (also known as nearsightedness) has struck children—and it is spreading faster in many countries. Doctors warn that sitting too close
to a computer, especially fixes your eyes at a computer or 【3】______
TV screen from close range, increases the risk of myopia.
The cause of myopia is difficult to explain in simple terms. While some say sitting near computers and TV screens is one of the reasons, others say children born to nearsighted parent/parents are vulnerable. 【4】______
Can genes or the environment, or a combination of two 【5】______
explain the growing prevalence of myopia across many countries? How can parents understand what causes myopia and the risks it poses to their children’s eyesight? Children suffering from myopia have trouble seeing
close objects clearly. The eyeball is thought to become 【6】______
longer, because of which less effort is needed to see up
close. Moreover, the elongated eye can no longer focus on 【7】______
distant objects.
Symptoms of myopia are rarely noticed in early 【8】______
childhood. Myopic children must hold books very close to 【9】______
their face or may not be able to read the writing on the
blackboard in school. They may squint and complain of 【10】______
head and eyestrain.
选项
答案
usually
解析
近视的症状在孩子很小的时候容不容易发现呢?从下文的进一步解释可以发现,近视的孩子总是把书放到离面孔很近的地方,或者看不见学校黑板上的文字。因此,经常可以在早期发现近视症状,而不是发现的几率很低。故将rarely(难得地)改为usually(经常地)。
转载请注明原文地址:https://www.kaotiyun.com/show/IVYO777K
0
专业英语八级
相关试题推荐
Youshouldnotfearspidersthankstotheirpoison.Ofallthespidersin【M1】______NorthAmerica,onlyonekindisreallyda
ThebeginningofwhatwastobecometheUnitedStateswascharacterizedbyinconsistenciesinthevaluesandbehaviorofitspop
Beforeconsideringthisquestionitisinterestingtoreviewbrieflytheevolutionofthe【M1】______
DangersofUsingComputerTerminalsUndoubtedly,thecomputerhasgreatlyincreasedhumanbeing’sworkingcapacityandintel
DangersofUsingComputerTerminalsUndoubtedly,thecomputerhasgreatlyincreasedhumanbeing’sworkingcapacityandintel
FashionWiththeprogressionofthehumansociety,peopleareincreasinglydemandingtheirclothestobebeautifulaswellas
Recently,apossiblealternativewayofproducingpaperhasbeensuggestedbyagriculturalists:andenvironmentalists:aplant
______isthebasicunitofresearchinMorphology.
TheCalloftheWildisoneofthemasterpiecesof______.
C英国文学之作家作品。英国维多利亚时期的著名诗人、小说家ThomasHardy(哈代)的代表作有TessoftheD’Urbervilles(《德伯家的苔丝》)和JudetheObscure(《无名的裘德》)。
随机试题
A.骨髓B.胸腺C.脾脏D.扁桃体E.淋巴结属于黏膜相关淋巴组织的是
蚊虫不能传播的寄生虫病是
全口义齿的调牙合是为了调磨
患者李某,男性青年心脏病患者,有多项阳性体征,主治医生带学生实习,患者拒绝配合,该患者违背的道德义务是
下列选项中,属于施工项目经理职责的有()。
股东名册的变更登记需要在股东大会召开前( )日内进行。
冬天从温暖的室内进入到寒冷的室外环境人体会不自觉地打寒颤,这属于生理功能稳态调节中的()。
有关齿状线解剖意义的描述中,正确的是()。
已知2不大于A,A小于B,B不大于7,A和B都是自然数,那么的最小值是:
现代汉语的地域分支是_____。
最新回复
(
0
)