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
67
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
某三层两跨框架的计算简图如题38图所示。括号内为各杆的相对线刚度。试用反弯点法计算梁AB的B端弯矩。
背景资料:某项目部根据公司的安排,组建了某中标道路工程的项目经理部。因为是低价中标,为尽可能赢利,并确保质量符合合同的要求,项目部建立了一整套质量管理和保证体系。在确定质量计划的编制原则时,公司分管生产的副总经理指示公司技术管理部主持该
下列有关房产税的纳税义务发生时间,表述正确的有()。
甲公司由两位投资者设立,每人各出资100000元一年后,为扩大经营规模,经批准,甲公司注册资本增加到300000元,并引入第三位投资者。按照协议,新投资者须缴入现金150000元。甲公司就该业务确认的以下事项中,正确的是()。
要保证测验具有较高效度,测验本身的因素要做到()。
通过摆事实、讲道理,使学生提高认识、形成正确观点的德育方法是()。
Readthetextbelowaboutaninternationalcompetition.Inmostofthelines41—52thereisoneextraword.Itiseithergramm
PassageThreeThesteakhousemaybeAmerica’sgreatestsingleachievement.Sure,there’sthatConstitutioneveryone’ssoimp
A、By8:30a.m.B、By9:30a.m.C、By10:00a.m.D、By10:30a.m.B女士说Henry先生现在不在,并问是否需要转告消息;男士说Henry先生的航班是上午10:30起飞,但他必须至少提前一个小时到机场
InJanuary1989,theCommunityofEuropeanRailwayspresentedtheirproposalforahigh-speedpan-Europeantrainnetwork【B1】____
最新回复
(
0
)