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
Thirst for Oil Worldwide every day, we devour the energy equivalent of about 200 million barrels of Oil. Most of the energy
admin
2013-10-25
39
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 Refugel 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 shares 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°C. 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
转载请注明原文地址:https://kaotiyun.com/show/iXmd777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Youwillhearfivepeoplegivingreasonswhychildrenlearntheirmothertonguesowell.Beforeyoulisten,readthelistof
Beforehisretirement,Brianworkedasapilotforacompanycalled(9)______foralongtime.Brianfeelslikeabirdwhenfl
DEALINGWITHWASTEPLASTICEveryyearpeoplethrowawaymillionsoftonnesofplasticbottles,boxesandwrapping.Thesecr
MyExperienceaboutEnglishOnesummernight,onmywayhomefromworkIdecidedtoseeamovie.Iknewthetheatrewouldbeair
Coldsarecausedbyexposuretosevereweather.Sleepcancurecolds.
ThedocumentwascompiledbytheDepartmentofHealth.
TheBarbieDollsInthemid1940’s,theyoungambitiousRuthandElliotHandler,ownedacompanythatmadewoodenpicturesf
Theroomwasfurnishedwiththesimplestessentials,abed,achair,andatable.
8.Don’tirritateher,she’sonashortfusetoday.
随机试题
自然界多数苷类
王某,女,23岁。受凉后突然出现寒战,高热、咳嗽,咳铁锈色痰,胸痛。查体:叩诊右下肺轻度浊音,听诊呼吸音减低,听到支气管呼吸音。应首先考虑的是
治疗虚寒呕呃,宜选用治疗痰火或湿热蒙蔽清窍之神昏、癫狂、癫痫,宜选用
患者,男,25岁。不寐,健忘,心悸怔忡,虚烦不安,甚则盗汗、梦遗等,舌偏淡,苔薄少,脉细数。服用的方剂中,中药寸冬的正名是
勘察费用在合同签订后()天内,发包人应向勘察人支付预算勘察费的20%作为定金。
工作流程图是以图示形式反映一个组织系统中各项工作之间的()联系。
下列情况中,诉讼时效期间为2年的是( );
下列行业属于特种行业的有()。
请求分页和简单分页两种存储管理方案有何不同?缺页中断是如何发生的?发生缺页中断时如何处理?
OnlyVIPshavethe_____ofusingtheprivatebeach.
最新回复
(
0
)