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
51
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
Themakingofweathervanesdevicesfixedonthetopofbuildingstoshowdirectionsofthewindisanancientskill,goingback
A.WhatisZYBAN?B.WhatarethesideeffectsoftakingZYBAN?.C.WhoinventedZYBAN?D.HowlongshouldItakeZYBAN?E.Ho
SomeThingsWeKnowAboutLanguageManythingsaboutlanguageareamystery,andmanywillalwaysremainso.Butsomethingswe
A.ImportanceofimmunizationB.RelationshipwithotherhealthservicesC.Creationofnecessaryconditionsforhealthybehavio
Whatdoesthepassagemainlydealwith?Theworld"issues"isLine3Paragraph2canmostlybereplacedby______.
HenryManleywasalreadydeeplyindebt.HenryManley’scompanywasindeeptrouble.
LoweringtheRiskofHeartDiseaseLikemillionsofotherAmericans,Icomefromafamilywithahistoryofheartdisease.Myfa
OnlyinFebruaryshouldattentionbepaidtochildren’soralhealth.Oralproblemscannotbeavoidedinanyway.
SleeplessnessInsomniaorsleeplessnessisacommoncomplaintofwomenastheyenterintomenopause.Insomniameanshavingt
Accordingtothepassage,killinginsectsandbacteriapresentinfoodsbyirradiatingisnotcompletelyapprovedbytheUSgove
随机试题
材料1中共中央政治局委员、广东省委书记胡春华指出:“联系和服务群众‘最后一公里’问题没有解决好,主要是镇(街)与村(居)的联系没有完全打通。”2014年10月,省委印发了《关于建立乡镇(街道)领导干部驻点普遍直接联系群众制度的意见》,要求驻点普遍
体内转运—碳单位的载体是
胎膜大部分在何时破裂:
是正经别行深入体腔的支脉,既加强了十二经脉的内外联系,也加强了经脉所属络的脏腑在体腔深部的联系。具有以上特点的经脉的名称是()
小儿急性肾炎严重循环充血,不包括
试论述代理与委托的关系。
【背景资料】某工程建设项目为一片住宅楼小区,共有六个单体栋号,分别为1#楼至6#楼,各栋号层数地下均为1层,地上12层至22层不等。各栋号地下室底板、外墙均采用防水混凝土1#~3#楼地下室外墙选用C45P8混凝土,4#~6#楼地下室外墙选用C40P8混凝土
美国第一则广告的内容是()。
斯金纳训练鸽子走“8”字形路线,所采用的技术是()
A、 B、 C、 A
最新回复
(
0
)