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
Thirst for Oil Worldwide every day, we devour the energy equivalent of about 200 million barrels of oil. Most of the energy on E
Thirst for Oil Worldwide every day, we devour the energy equivalent of about 200 million barrels of oil. Most of the energy on E
admin
2009-06-15
85
问题
Thirst for Oil
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 oil shales and tar sands may be used instead. Petrol could also be obtained from coal.
Since we started using fossil fuels, we have released 400 billion tonnes 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 the melting of all Arctic ice.
选项
A、Most of the energy on Earth comes from the Sun.
B、Oil supply is increasing all the time.
C、Demand for oil is increasing all the time.
D、Oil supply is decreasing.
答案
D
解析
答案在第一段最后一句中。这里的supplies指oil supplies。
转载请注明原文地址:https://kaotiyun.com/show/EDhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
Healthworkersthemselvesareawareoftheimportanceofcontinuedtraining.Writtenmaterialsconstitutethebestformofcont
NeedforEmphasisonTreatmentAIDSprogramsindevelopingcountriesputtoolittleemphasisontreatment,theWorldHealthOrga
ThemainreadersofmedicaljournalsareHowmanymajortypesofarticlesarementionedinthepassage?
WhichofthefollowingusesofnanotechnologyisNOTmentionedinthepassage?Whichofthefollowingisthepossibleriskinu
Thepassageismainlyabout______.Thepassageimpliesthataslowingininflationwouldhave______effectonmedicalcosts.
1.Forwellover2000yearstheworld’sgreatreligionshavetaughtthevirtuesofatrustingheart.Nowthereisanotherreason
AMakingfriendswithnewacquaintancesBCloselinkbetweencompanionshipandbelongingnessCHowtosatisfyotherpeople’s
Hehastroubleunderstandingthatotherpeoplejudgehimbyhissocialskillsandconduct.
A.Whatcausesautism?B.Howcommonisautism?C.Doesautismoccurtogetherwithotherdisabilities?D.Whatisthedifference
Thebridgehadbeenwreckedbytheexplosion.
随机试题
婴幼儿少尿的标准是24小时尿量少于
下列哪项不是行政强制执行的种类:
某机场建设项目,其主要飞行航迹下离跑道两端各( )km,侧向2km内的评价范围可以满足一级评价的要求。
一般适用于工序繁多、工程量大而又集中的大型构筑物施工的组织方法是()。
当事人申请鉴定,应在()提出。
从具体内容来看,企业薪酬调整包括()。
常言道:“人要实,火要虚。”此话的意思是说做人要脚踏实地,才能事业有成:可燃物要架空一些,才能燃烧更旺。“火要虚”的目的是()。
他人:镜子:明得失
A、 B、 C、 D、 C此题答案为C。题干及选项给出的图形组成元素大小形状都相同,只是位置不同,首先锁定移动、旋转和翻转考点。解决此题的关键就是要找出图形构成元素间的这种转换方式。先从每行来找寻规
武警战士小东在野外实战训练时,需要从离地3米的窗台跳下,当他两脚着地的瞬间,膝盖马上弯曲,使身体的重心又下降了0.5米,从而缓冲地面对身体的作用力,那么该作用力估计为:
最新回复
(
0
)