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
Renewable Energy Sources Today petroleum(石油)provides around 40% of the world’s energy needs, mostly fuelling automobiles. Co
Renewable Energy Sources Today petroleum(石油)provides around 40% of the world’s energy needs, mostly fuelling automobiles. Co
admin
2015-07-05
79
问题
Renewable Energy Sources
Today petroleum(石油)provides around 40% of the world’s energy needs, mostly fuelling automobiles. Coal is still used, mostly in power stations, to cover one-quarter of our energy needs, but it is the least efficient, unhealthiest and most environmentally damaging fossil fuel(矿物燃料). Natural gas reserves could fill some of the gap from oil, but reserves of that will not last into the 22nd century either. Most experts predict we will exhaust easily accessible reserves within 50 years. Less-polluting renewable energy sources offer a more practical long-term energy solution. " Renewable" refers to the fact that these resources are not used faster than they can be replaced.
Hydroelectric(水力发电的)power is now the most common form of renewable energy, supplying around 20% of world electricity. China’s Three Gorges Dam is the largest ever. At five times the size of the U. S. ’s Hoover Dam, its 26 turbines(涡轮机)will generate the equivalent energy of 18 coal-fired power stations. It will satisfy 3% of China’s entire electricity demand.
In 2003, the first commercial power station to use tidal(潮汐的)currents in the open sea opened in Norway. It is designed like windmill(风车), but others take the form of turbines.
As prices fall, wind power has become the fastest growing type of electricity generation— quadrupling(翻两番)worldwide between 1999 and 2005. Modern wind farms consist of turbines that generate electricity. Though it will be more expensive, there is more than enough wind to provide the world’s entire energy needs. Wind farms come in onshore and offshore forms. They can often end up at spots of natural beauty, and are often unpopular with residents. And turbines are not totally harmless—they can interfere with radar, alter climate and kill sea birds. Scotland is building Europe’s largest wind farm, which will power 200, 000 homes. The U. K. ’s goal is to generate one-fifth of power from renewable sources, mainly wind, by 2020. But this may cause problems, because wind is unreliable.
According to the passage, which of the following is the most polluting energy resource?
选项
A、Petroleum.
B、Coal.
C、Natural gas.
D、Water.
答案
B
解析
文章第一段第二句话指出,煤炭尽管还在被大量地使用,但它是效率最低的,最有害健康和环境的燃料。这样看来煤炭就是污染最大的能源,选项B正确。
转载请注明原文地址:https://kaotiyun.com/show/ZJQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
Theseprogrammesareofimmensevaluetooldpeople.
StomachUlcerStomachulcersarethecauseofseverepainformanypeople.Doctorshavebeenabletohelplessenthepainof
Successfulleadersdominateeventsratherthanreacttothem.
ReinventingtheTableAnearthscientisthasrejiggedtheperiodictabletomakechemistrysimplertoteachtostudents.(46)But
ReinventingtheTableAnearthscientisthasrejiggedtheperiodictabletomakechemistrysimplertoteachtostudents.(46)But
GeologyandHealthTheimportanceofparticularmetalsinthehumandiethasbeenrealisedwithinthepastfewdecades,and
GeorgeWashingtonCarverwasesteemedforhiscontributionsinthefieldsofbotanyandchemistry.
ThispoemdepictsthebeautifulsceneryofatownintheSouth.
随机试题
中国政府倡议,共建“一带一路”恪守联合国宪章的宗旨和原则,坚持开放合作、和谐包容、市场运作、互利共赢。“一带一路”秉持的理念是()
200年10月17日,周某为其子陈某投保了生死两全保险,保险期限5年,保险费于当日一次缴清。2009年12月1日,陈某因盗窃罪被判处三年有期徒刑。2009年12月20日,陈某越狱,触电网身亡。关于本事例,保险人应
酗酒可引起活性明显升高的血清酶是
一男婴,8个月。已发热惊厥3天,诊断为“化脓性脑膜炎”。下述哪项处理不当
在甲公司的破产案件中,若人民法院裁定(),当事人可以向上一级人民法院提起上诉。
根据《建设工程工程量清单计价规范》的规定,金属门窗套、石材门窗套等,按设计图示尺寸以()计算。
一个与其他领土之间的大部分贸易保持着单独税率或其他单独贸易规章的地区为“单独关税区”。()
上海黄浦江和苏州河的长度分别为()。
()是中国的第一部纪传体通史,后世学者以之为史传文学之典范。
下图表示下丘脑神经细胞、垂体细胞、甲状腺细胞及它们分泌的激素之间的关系,研究表明物质乙是一种糖蛋白。请回答下列问题。 如果用物质丙饲喂正常动物,则物质甲、乙的分泌量的变化分别是______;如果用物质乙饲喂正常动物,则物质丙的分泌量______,原因
最新回复
(
0
)