首页
登录
职称英语
The use of solar and wind power is now increasing rapidly, raising hope that
The use of solar and wind power is now increasing rapidly, raising hope that
游客
2025-01-04
23
管理
问题
The use of solar and wind power is now increasing rapidly, raising hope that such alter-native energy technologies can significantly reduce greenhouse gas emissions and generate new jobs.
The global wind power industry, for example, has become a $ 2-billion-a-year business, expanding at a rate of 25% per year. India, China, and a dozen European nations have installed thousands of wind turbines that generate electricity at a cost comparable to new coal-fired power plants. In the 1990s, Germany has created 10,000 new jobs in its wind industry. Wind power now provides less than 1% of the world’s total electricity, but that figure could climb to 20% or more within 50 years, according to Worldwatch Institute researchers.
Solar power is the second fastest growing energy source today. The cost of buying a kilowatt worth of solar photovoltaic cells dropped from $ 70,000 in the 1970s to $ 4,000 in 1997, and in 10 years it could go as low as $1,000. Approximately 400,000 homes--many in remote areas not connected by power lines--already use solar power. Worldwatch studies suggest that covering the rooftops of existing buildings with solar cells could meet more than half of the electricity needs each year.
选项
答案
太阳能和风能的利用目前得到了迅速的发展,随之而来的是人们希望这些代用能源技术能够显著减少温室气体的排放并创造新的就业机会。
例如,全球风能工业已成为一项每年20亿美元的实业,并以每年25%的比率扩展。印度、中国及12个欧洲国家已安装了成千上万个发电用的风力涡轮机,其费用与新建燃煤电厂不相上下。90年代,德国已在它的风能工业上创造了一万个新的就业机会。风力发电目前在世界总电力中不到1%,但世界观察协会的研究人员认为,这一数字在未来的50年内会上升到20%或更多。
太阳能是今天第二位增长最快的能源。购买可发电1 000瓦的太阳能光电池所花的费用从70年代的七万美元降至1997年的4 000美元,而且在10年后费用可能会低至1 000美元。大约有40万户家庭(许多家庭位于边远地区而无法用电线联网供电)早已使用太阳能发电。世界观察协会的研究表明:用太阳能硅片覆盖现有建筑物的屋顶可满足每年半数以上的电力需要。
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3898821.html
相关试题推荐
Theuseofsolarandwindpowerisnowincreasingrapidly,raisinghopethat
Well-traveledAmericanbusinesspeopleareincreasinglyrealizingthattheym
Well-traveledAmericanbusinesspeopleareincreasinglyrealizingthattheym
Overthelastdecadetherehasbeenincreasinginterestinnewertechniques
Overthelastdecadetherehasbeenincreasinginterestinnewertechniques
Overthelastdecadetherehasbeenincreasinginterestinnewertechniques
Overthelastdecadetherehasbeenincreasinginterestinnewertechniques
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccu
[originaltext]Adayoffund-raisingeventsaroundBritainhasraisedseveral
[originaltext]Adayoffund-raisingeventsaroundBritainhasraisedseveral
随机试题
Theplainerabowerbird’splumage,themorebrightlyitdecoratesitsnesttoat
[originaltext]M:Howdifferentwouldyouimaginethelearningofasecondlangu
Unlessmeasuresaretakenatonce,thereisapossibilitythatalltheocean
路基构造物损坏包括挡墙等圬工体断裂、沉陷、倾斜、局部坍塌、松动和较大面积勾缝脱落
自然常识课上,教师通过做水的升温和降温实验,让学生观察水的“三态”变化,这种教学
溴量法测定司可巴比妥钠含量时,1ml溴滴定液(0.1mol/L)相当于司可巴比妥
D第一步,本题考查非整数数列中的分数数列。 第二步,利用反约分将原数列转化为,分子4,6,8,9,10,(12)是合数数列,下一项为12,分母0.5,1,2,
某胶片厂的洗印车间,采用单层厂房,耐火等级为一级。该车间内防火墙间最大允许占地面
培训前评估的内容包括( )。A.培训需求整体评估 B.培训对象知识、技能和工
关于宋代的法律制度,下列说法错误的是A.《宋刑统》是中国历史上第一部刊印颁行的法
最新回复
(
0
)