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
43
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://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
Thecostofstagingtheyear2000OlympicsinSydneyisestimatedtobeastaggering$960million,but【61】thecityisprepari
WhatdowelearnabouttheuseofsolarenergyintheUSA?
【B1】Swedenhasgotapopulationofonly8million,butitisalargecountrywithanareaof450,000squarekilometers.【B2】The
【B1】Swedenhasgotapopulationofonly8million,butitisalargecountrywithanareaof450,000squarekilometers.【B2】The
【B1】Swedenhasgotapopulationofonly8million,butitisalargecountrywithanareaof450,000squarekilometers.【B2】The
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
In1971therewereabout3,700millionpeopleintheworld.Ifthepopulationwere【C1】______evenlyovertheearth’ssurfacet
随机试题
(2019年济宁北湖区)心理学界最为流行的全面解释人类智力的理论是()
电子商务网站的可行性分析包括:社会环境可行性、经济可行性、技术可行性和( )可行性。
护理肾衰竭少尿、无尿患者最重要的是
在设备采购评标方法中,具有评标考虑因素全面,且可以将难以用金额表示的各项要素量化后进行比较等优点的方法是()。
某公司2003年末有关数据如下表。要求:①根据以上资料,计算该公司2003年的流动比率,速动比率、存货周转率、应收账款周转天数、资产负债率、已获利息倍数、销售净利率、净资产收益率。②假设该公司同行业的各项比率的平均水平如下表所示,试根据①
老年人可能对认知和情绪问题抱有的偏见不包括()。
个体工商户张某,通过合法渠道购买烟花爆竹500件(价值lO万元)。张某把郊区居民楼空房作为仓库存放此批烟花爆竹,被公安机关某派出所民警查获。公安机关拟对其以非法存放危险物质处10日行政拘留。下列说法正确的有:
某次认知能力测试,刘强得了118分,蒋明的得分比王丽高,张华和刘强得分之和大于蒋明和王丽的得分之和,刘强的得分比周梅高;此次测试120分以上为优秀,五人之中有两人没有达到优秀。
在虚拟页式存储方案中,常用的页面调入策略有()。
FriendorFoe?CrowsNeverForgetaFace,ItSeemsCrowsandtheirrelatives—amongthemravens,magpiesandjays—areren
最新回复
(
0
)