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
The night is not what it was. Once, the earth was cast half in shadow. Then came fire, candle, and light bulb, gradually drawing
The night is not what it was. Once, the earth was cast half in shadow. Then came fire, candle, and light bulb, gradually drawing
admin
2012-02-26
34
问题
The night is not what it was. Once, the earth was cast half in shadow. Then came fire, candle, and light bulb, gradually drawing back the curtain of darkness. But a brighter world has its drawbacks. An estimated 30 percent of outdoor lighting—plus even some indoor lighting—is wasted. Inefficient lighting costs U.S. about $10.4 billion a year, according to bob Gent of the International Dark Sky Association, a nonprofit that aims to control light pollution.
Last year, in Sydney, an estimated 2.2 million Australians switched off their lights during "Earth Hour", briefly reducing that city’s energy use by more than 10 percent. Motivated by such trends, more than two dozen cities worldwide went dim on March 29 this year in an hour-long demonstration.
A number of groups are trying to measure light pollution and assess its effect on the environment in the hope that people will reduce their own contribution to the problem. Scientists are trying to report how many stars we can see. In dark rural areas, about 2,000 stars are typically visible at night, compared with "maybe five" in a bright city square—and about 5,000 in centuries past.
People who are working while others are star-gazing may face the greatest risks. Nighttime exposure to white light can cause the growth of tumors (肿瘤), experiments show. Two decades of research indicate that women who work at night shifts have unusually high rates of breast cancer.
People who work at night ______.
选项
A、lose the chance to gaze stars
B、have a higher risk of health problem
C、have less exposure to white light
D、are able to blame for light pollution
答案
B
解析
根据People who work at night可以找到其在原文中的出处:最后一段第一句。去掉和题干重复的信息后所剩的“may face the greatest risks”就是答案。再根据后面的“Nighttime exposure to white light can cause the growth of tumors(肿瘤),experiments show.”判断这种危险就是身体健康方面的危险。
转载请注明原文地址:https://kaotiyun.com/show/7cJO777K
0
成人本科学位英语
相关试题推荐
RelationsbetweentheUnitedStatesandColombiasufferedformanyyearsbecauseofanincidentinvolvingtheRepublicofPanama
Whenanartmuseumwantsanewexhibit,itbuysthingsinfinishedformandhangsthemonitswalls.Whenanaturalhistorymuse
Olderfemalemanagersare【51】thatworkingunderthe【52】ofyoungerfemalemanagerscanbeparticularly【53】.Whileolderwomengen
Olderfemalemanagersare【51】thatworkingunderthe【52】ofyoungerfemalemanagerscanbeparticularly【53】.Whileolderwomengen
Packagingisanimportantformofadvertising.Apackagecansometimesmotivatesomeonetobuyaproduct.Forexample,asmallc
Themedicalworldisgraduallyrealizingthatthequalityoftheenvironmentinhospitalsmayplayasignificantroleinthepro
Themedicalworldisgraduallyrealizingthatthequalityoftheenvironmentinhospitalsmayplayasignificantroleinthepro
Whatisthemostimportantserviceoftreestomanaccordingtothepassage?Whydidthecountrymentionedinthepassagesuffe
Thenightisnotwhatitwas.Once,theearthwascasthalfinshadow.Thencamefire,candle,andlightbulb,graduallydrawing
Intheadsalloftheadvertisersmentiontheir______.
随机试题
A.脾B.肾C.胃D.肺E.三焦气之本指的是
选择会计软件时,应优先考虑软件的实用性,其次考虑合法性。()
顾客满意度指标中与产品有关的指标包括()。
为了在互联网上查找“印尼大地震”的相关消息,李明用“百度搜索引擎”来搜索。方法是进入百度搜索引擎主页,在文本框中输入“印尼大地震”并按回车键,结果搜索出了数十万条相关的信息。那么“印尼大地震”这个词在搜索引擎的专业术语中称为()。
刑事强制权是为了保证刑事诉讼的顺利进行,由公安机关对犯罪嫌疑人、被告人行使的强制权力,下列属于刑事强制权的有()。
【广学会】2017年历史学统考真题
设u=f(r),而f(r)具有二阶连续导数,则
设an为发散的正项级数,令Sn=a1+a2+…+an(n=1,2,…).证明:收敛.
有以下程序:intfl(doub1ea){returna*a;}intf2(intx,inty){doublea,b;a=n(x);b=f1(y);retur
(1)打开考生文件夹下EXC.XLS文件,将sheet1工作表的A1:D1单元格合并为一个单元格,水平对齐方式设置为居中;计算各类人员的总计和各类人员所占比例(所占比例=人数/总计),保留小数点后2位,将工作表命名为“人员情况表”。(2
最新回复
(
0
)