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
Light pollution is the glow you can see at night above cities and towns. It is a problem that has been accompanying man ever sin
Light pollution is the glow you can see at night above cities and towns. It is a problem that has been accompanying man ever sin
admin
2013-06-02
88
问题
Light pollution is the glow you can see at night above cities and towns. It is a problem that has been accompanying man ever since he started his first fire some 15 000 years ago, and technology has only made it worse. Light pollution is the stray (杂乱的) light that comes from streetlights, billboard signs, buildings, parking lots, sports arenas and any other source of illumination that is reflected or directed into the atmosphere. Light pollution is made worse with air pollution, as the small particles that float in the air serve to scatter and reflect the light, compounding the problem. The effect of light pollution is to reduce the contrast, and therefore the visibility of dimmer objects in the night sky, which affects professional, as well as amateur astronomers.
Light pollution exists on every continent except Antarctica. Urban light pollution means that one-fifth of the world’s population can no longer see the Milky Way with the naked eye. Many city kids, even if they did peer through the orange smog above their heads, would probably see only a handful of stars. We have lost our view of the stars, and we have mucked up (把......弄脏) our nighttime environment as well.
Lots of people find the ever-brightening night annoying, and animals that are programmed to prefer the dark may avoid brightened habitat. Sea turtles can get lost searching for a beach to lay eggs, and their hatchlings (幼龟) may confuse over-lit beachfront resorts for the ocean horizon, wasting precious energy needed to find the sea and escape predators. Because their necks aren’t yet long enough to see things far away, baby turtles rely on the mirror image of the moon to guide them to the sea, to begin their new life. A car may even hit a particular turtle, which was thinking the light from a nearby city was moonlight reflecting off the ocean waves. Birds that live in and around cities can die because of sky glow, too. The abundance of bright lights can blind them, leading to countless collisions with buildings, billboards and other tall structures.
These are merely a few of the possible negative effects light pollution has on our world. A very serious issue in our modern-day society is that light pollution is a terrible waste of energy since lighting is responsible for one-fourth of all energy consumption worldwide.
Reducing light pollution is not difficult. Light pollution is the easiest type of pollution to end. On an individual level, people can help reduce much sky glow by using lighting only when necessary and by choosing well shielded lighting fixtures. The stars above us are a priceless heritage—not only for astronomers but for all humans. More of our children should be able to look up at night and see that the Milky Way is not just a candy bar.
What is light pollution in modern society?
选项
A、A way of energy waste.
B、A necessity for electricity.
C、A source of greenhouse gas emissions.
D、A threat to nature mother.
答案
A
解析
事实细节题。定位句明确指出,对于现代社会来说,光污染的问题在于这是一种能源的浪费,因此答案为A)。
转载请注明原文地址:https://kaotiyun.com/show/lyB7777K
0
大学英语六级
相关试题推荐
Gotapenhandy?Tobestestimateyourstart-upcosts,you’llneedtomakealistandthemoredetailedthebetter.Asmartway
Gotapenhandy?Tobestestimateyourstart-upcosts,you’llneedtomakealistandthemoredetailedthebetter.Asmartway
A、Theyalwaysspendmorethantheycanafford.B、Theyarebadatmanagingfinance.C、Theyshowinterestineconomics.D、Theyloo
A、Theywereborntobepale.B、Theywantedtobedifferentfromthepeasants.C、Theydidnotliketravelinginsunnycountries.
TheOnlyChild;RevealingtheMythsAccordingtotheGuttmacherInstitute,aleadingreproductive-healthresearchorganizati
Heisgoodatworkingoutmathematicproblems,______(但是一谈到艺术),heknowslittleaboutit.
Hollywood"Globalized"WhendirectorAdamMcKaypitchedasequel(续集)tohis2004hitmovieAnchorman,hethoughtitwouldb
A、Thenewmuseum.B、Thenewposter.C、Thehistorydepartment.D、ThespecialtourtoNewYork.B语义理解题。女士很喜欢男士的新海报,并询问男士是否在超市买到的;男
Ifyouintendusinghumorinyourtalktomakepeoplesmile,youmustknowhowtoidentifysharedexperiencesandproblems.Your
Largecompaniesneedawaytoreachthesavingsofthepublicatlarge.Thesameproblem,onasmaller【B1】_____,facespractica
随机试题
不是大便秘结原因的一项是
复发性口腔溃疡很少见于
断面具有红棕色与白色相间的大理石样花纹的药材是()。
A.鼻流清涕B.鼻溃烂塌陷C.久流浊涕而有腥臭D.鼻翼煽动E.酒糟鼻
子宫内膜异位导致不孕病人选用以下哪种治疗方案
与一般焊后热处理相比,球罐整体热处理独具特点的目的是( )
某基础公司总承包、某建设分承包公司分包的轨道交通某车站工程工地上,分承包单位进行桩基础旋喷加固施工。上午5时30分左右,1号桩机(井架式旋喷桩机)机操工王某,辅助工冯某、孙某3人在C8号旋喷桩桩基施工时,辅助工孙某发现桩机框架上部6m处油管接头漏油,在未停
目前应用较为广泛的无损检验方法中,能发现焊缝内部气孔、夹渣、裂纹及未焊透等缺陷的是()。
1918年后,西方各国对苏联采取了敌视和封锁政策。但1931年,美国出口的机器设备中,有50%卖给苏联。1929—1930年,英国机器出口总量的70%销往苏联,而1932年竟高达90%。这种变化是因为()。
在结构化分析方法中,用于描述系统中所用到的全部数据和文件的文档称为【】。
最新回复
(
0
)