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
考研
Power and water are interconnected and that has serious consequences for the American West as it grapples with climate change. B
Power and water are interconnected and that has serious consequences for the American West as it grapples with climate change. B
admin
2018-01-08
36
问题
Power and water are interconnected and that has serious consequences for the American West as it grapples with climate change. By now, everyone knows you save energy by turning out lights. And you conserve water by taking shorter showers. But it’s just as true that saving water may be one of the most effective ways to save energy—and
vice versa
. "It’s a ’buy one, get one free’ deal," said Douglas Kenney, a professor at the University of Colorado Law School and the editor of an upcoming book that explores the nexus of water and energy.
In California today, just delivering water accounts for 20 percent of the state’s energy consumption. It takes power to gather water, purify water, and distribute water, especially in places like southern California where water is piped hundreds of miles to supply Los Angeles’ sprawling demands.
Nationally, energy production sucks more water from freshwater sources than any other sector except agriculture. It takes water to create the power we use to drive our cars, transport our groceries, and run our toaster ovens. Virtually every source of electricity in a typical American home or manufacturing plant—whether it comes from hydroelectricity, coal, natural gas, nuclear, biofuels, or even concentrated solar—also requires water. Lots of water.
That’s a growing problem, because in many places, finding water for energy isn’t easy— and it’s bound to get tougher as energy demands soar and climate change alters hydrological cycles in already arid regions. The energy sector is the fastest-growing water consumer in the United States, according to a January 2011 Congressional Research Service report. Nationally, that’s a challenge, but regionally it could be a calamity. As the Congressional Research report notes, "much of the growth in the energy sector’s water demand is concentrated in regions with already intense competition over water." The connection between energy and water—and the precariousness of that link in the western United States—is exemplified in a gigantic plug of concrete stopping the muddy Colorado River above Las Vegas, otherwise known as Hoover Dam.
At the ceremony inaugurating the Hoover Dam provided the two key ingredients—water and power—that freed the Southwest and southern California to go on a 75-year growth spurt. Lake Mead now supplies water to more than 22 million people, and it produces more than four billion kilowatts of electricity per year.
The Colorado River, lifeblood of seven western states, is already as
overdrawn
as the federal treasury. Drought conditions during most of the 21st century have forced water managers to plan for a day when the region’ s vast system of dams and reservoirs no longer have enough water to store. Already, utilities have to scramble to respond on days when everybody in Phoenix, Las Vegas and Los Angeles wants to crank their air conditioners during the same heat wave.
The most appropriate title for this passage could be______.
选项
A、Electricity Needs Water
B、Save the Colorado River
C、How to Save Water
D、Saving Energy and Conserving Water
答案
D
解析
此题为主旨大意题。纵观全文,文章第一段引出话题一一水与能源关系密切;第二段指出水输送能源消耗大,特别是在人口密集的大城市;第三段说明几乎每种能源都需要大量的水:第四段指出水资源问题严重;第五段提到水坝带来水和能量;第六段举例科罗拉多河,水将要透支。综上,可知D选项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/oTBZ777K
0
考研英语一
相关试题推荐
HowdoyouexplaineconomicsinplainEnglish?TheFederalReserveBankofNewYorkhasbeenansweringthequestionwithaneven
HowdoyouexplaineconomicsinplainEnglish?TheFederalReserveBankofNewYorkhasbeenansweringthequestionwithaneven
HowdoyouexplaineconomicsinplainEnglish?TheFederalReserveBankofNewYorkhasbeenansweringthequestionwithaneven
HowdoyouexplaineconomicsinplainEnglish?TheFederalReserveBankofNewYorkhasbeenansweringthequestionwithaneven
HowdoyouexplaineconomicsinplainEnglish?TheFederalReserveBankofNewYorkhasbeenansweringthequestionwithaneven
HowdoyouexplaineconomicsinplainEnglish?TheFederalReserveBankofNewYorkhasbeenansweringthequestionwithaneven
MasstransportationrevisedthesocialandeconomicfabricoftheAmericancityinthreefundamentalways.Itspeededupphysica
MasstransportationrevisedthesocialandeconomicfabricoftheAmericancityinthreefundamentalways.Itspeededupphysica
MasstransportationrevisedthesocialandeconomicfabricoftheAmericancityinthreefundamentalways.Itspeededupphysica
随机试题
Itiseasierto______aconversationwithothersbytalkingabouttheweather.
依据《中华人民共和国药品管理法》规定,合法的药品生产企业必须持有( )
关于宪法实施,下列哪一选项是不正确的?(2012年卷一22题)
在借款合同中,贷款人可以随时解除合同。()
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
①匠心之意是让你尽量透过廊、窗取景,抬眼时便是一幅图画②墙为纸,物为墨,随风摇曳,影布墙上③这个园子多回廊,亭堂又多窗④窗外常是粉墙,窗与墙之间或植竹数竿,或插梅一枝⑤且天生的艳红翠绿,这是任何丹青高手所不能企及的将以上5个句子重新排列,语序正确
根据下表,回答111-115题。下列代码中,每股收益最高的是:
下图中的立体图形①是由立体图形②、③和④组合而成,下列哪一项能够填入问号处?
甲、乙两公司先后向王某出具正式的委托授权书,委托王某为其代理人,授权王某可以和任何单位签订购销合同。王某签订的下列合同中,有效的是()。
Thepredictabilityofourmortalityratesissomethingthathaslongpuzzledsocialscientists.Afterall,thereisnonaturalr
最新回复
(
0
)