首页
登录
职称英语
Renewable energy sources can be replenished in a short period of time. The
Renewable energy sources can be replenished in a short period of time. The
游客
2024-10-23
0
管理
问题
Renewable energy sources can be replenished in a short period of time. The five renewable sources used most often include hydropower (water), solar, wind, geothermal, and biomass. Renewable energy’s impact on the world’s energy picture is significant. Many important events have occurred during the history of using renewable sources to generate electricity--but the overall consumption from renewable energy sources has declined by about 15 percent from their I996 peak to about 6 quads in 2005.
The use of renewable energy is not new. Five generations (125 years) ago, wood supplied up to 90 percent of our energy needs. Due to the convenience and low prices of fossil fuels, wood use has fallen. Now, the biomass which would normally present a disposal problem is converted into electricity (e.g., manufacturing wastes, rice hulls, and black liquor from paper production).
Historically, low fossil fuel prices, especially for natural gas, have made growth difficult for renewable fuels. The deregulation and restructuring of the electric power industry could have a major impact on renewable energy consumption. Demands for cheaper power in the short term would likely decrease demand for renewable energy, while preferences for renewables included in some versions of proposed electricity restructuring legislation would breathe new life into this industry.
Use of renewables in the United States is not currently expected to approach that of the major fuels, and due to their limitatious (e.g., their intermittent nature-cloudy days have no solar gain, quiet days mean no wind blows to drive wind turbines, dams are primarily for flood control, so hydroelectricity production varies as dams’ water levels change), renewables may never provide "the" answer to all energy problems. Around the world, renewable energy is proving to be of great value.
In 2005, about 6.1 Quadrillion Btu (Quads) of U.S. energy came from renewable fuels. Each of the energy sources we use is measured, purchased, and sold in a different form. Many units of measurement are used to measure the energy we use each day. [br] From 1996 to 2005, the trend of the consumption from renewable energy was ______.
选项
A、increasing
B、decreasing
C、irregular
D、not mentioned
答案
B
解析
细节理解题。对应文中第一段but the overall consumption from renewable energy sources has declined by about 15 percent from their 1996 peak to about 6 quads 2005.可知B正确。decline vi.下降;overall adj.总的;consumption n.消费。
转载请注明原文地址:https://tihaiku.com/zcyy/3814496.html
相关试题推荐
Shewashiredonthe______ofhercomputerskills.A、powerB、energyC、forceD、st
Operationswhichleftpatients______andinneedoflongperiodsofdiscoveryt
Renewableenergysourcescanbereplenishedinashortperiodoftime.The
Weresumedourworkafterthebreakwith______energy.A、relievedB、renewedC、te
Theperiodfrom1780totheCivilWarwasmarkedbyatremendousincreasei
Theperiodfrom1780totheCivilWarwasmarkedbyatremendousincreasei
AbreakthroughintheprovisionofenergyfromthesunfortheEuropeanEco
AccordingtoRogerNoriega,theturbulentperiodinLatinAmericanwascausedby
AccordingtoRogerNoriega,theturbulentperiodinLatinAmericanwascausedby
Theenergy______bythechainreactionistransformedintoheal.A、entrustedB、r
随机试题
BusinessesThriveonTransparencyStakeholdersscrutiniz
He______tobecleverbutdishonest.A、thoughtB、thoughtasC、thinksD、wasthoug
除了扫墓,人们还参与包括荡秋千、放风筝等各种活动。Apartfromsweepingthetombs,peoplealsotakepartin
申请设立新的出版单位,应当具备( )等条件。A.有确定的业务范围 B.有符合
描述牙尖交错(正中)解剖标志哪项是错误的()A.上、下牙列(牙弓)中
“儿童中心论”的倡导者是( )。A.蒙台梭利 B.加德纳 C.维果斯基
病人神情默默,倦怠懒言,身体赢瘦,脉沉细。但默默不语,却语时声高气粗;虽倦怠乏力
异养菌的特点是A:利用无机物为碳源B:利用无机物为氮源C:经无机物氧化获能
从所给四个选项中,选择最合适的一个填入问号处,使之呈现一定规律性: A.如上图
某女,35岁,半年来,月经期提前,经量较多,经色红质稀,腰膝酸软,五心烦热,
最新回复
(
0
)