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
Worldwide every day, we devour the energy equivalent of about 200 million barrels of oil. Most of the energy on earth comes from
Worldwide every day, we devour the energy equivalent of about 200 million barrels of oil. Most of the energy on earth comes from
admin
2010-08-07
96
问题
Worldwide every day, we devour the energy equivalent of about 200 million barrels of oil. Most of the energy on earth comes from the sun. In fact enough energy from the sun hits the planet’s surface each minute to cover our needs for an entire year, we just need to find an efficient way to use it. So far the energy in oil has been cheaper and easier to get at. But as supplies dwindle, this will change, and we will need to cure our addiction to oil.
Burning wood satisfied most energy needs until the steam-driven industrial revolution, when energy-dense coal became the fuel of choice. Coal is still used, mostly in power stations, to cover one quarter of our energy needs, but its use has been declining since we started pumping up oil. Coal is the least efficient, unhealthiest and most environmentally damaging fossil fuel, but could make a comeback, as supplies are still plentiful; its reserves are five times larger than oil’s.
Today petroleum, a mineral oil obtained from below the surface of the Earth and used to produce petrol, diesel oil and various other chemical substances, provides around 40% of the world’s energy needs, mostly fuelling automobiles. The US consumes a quarter of all oil, and generates a similar proportion of greenhouse gas emissions.
The majority of oil comes from the Middle East, which has half of known reserves. But other significant sources include Russia, North America, Norway, Venezuela and the North Sea. Alaska’s Arctic National Wildlife Refuge could be a major new US source, to reduce reliance on foreign imports.
Most experts predict we will exhaust easily accessible reserves within 50 years, though opinions and estimates vary. We could fast reach an energy crisis in the next few decades, when demand exceeds supply. As conventional reserves become more difficult to access, others such as tar sands may be used instead. Petrol could also be obtained from coal.
Since we started using fossil fuels ,we have released 400 billion tones of carbon, and burning the entire reserves could eventually raise world temperatures by 13℃. Among other horrors, this would result in the destruction of all rainforests and tile inching of all Arctic ice.
Which country is the biggest consumer of petroleum?
选项
A、The United States.
B、Russia.
C、Norway.
D、Venezuela.
答案
A
解析
细节题。文章的第三段说,美国消耗全世界四分之一的石油。故应选A。
转载请注明原文地址:https://www.kaotiyun.com/show/69xd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
America,unhappily,isbullishongarbage.Ourproductionofrefuse,nowabout160milliontonsayear,willriseto193million
WhatdowelearnabouttheuseofsolarenergyintheUSA?
【B1】Swedenhasgotapopulationofonly8million,butitisalargecountrywithanareaof450,000squarekilometers.【B2】The
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
随机试题
关于妊娠合并糖尿病,下列哪项是不正确的
某公司男女职工比例为4:5,因为业务扩张,预计员工总数需要增加15%。在第一轮招聘工作结束后,男职工增加了,女职工增加了40人。人力资源总监宣布第二轮招聘工作再增加21名员工即可达成年度招聘目标。请问公司原有男女职工各多少人?()
风湿性二尖瓣狭窄及关闭不全最常见的心律失常是
流动血液的信号与下列哪项无关
A、固化时收缩,对牙髓有刺激性B、固化期15分钟C、无粘接性,需制备良好的固位形D、与牙有化学粘结E、固化时体积无变化光固化复合树脂
下列关于舌的发育,说法错误的是
关于小规模纳税人缴纳增值税,下列说法正确的是()。
Themassmediainfluencesall【C1】______ofourlives,includingthelearningof【C2】______roles.Newspapersandmagazines,televis
根据下图所示网络结构回答下列问题。防火墙FW为CiscoPIX525,若允许内网的FFP服务器向外网提供服务,需要使用的配置命令是_______。
Haveyoueverbeenafraidtotalkbackwhenyouweretreated【S1】______?Haveyoueverboughtsomethingjustbecausethesalesm
最新回复
(
0
)