Two hundred years ago, the world experienced an energy revolution that launched the Industrial Age. Ever since then, with the rapid increase of population density, the industrialized world's thirst for energy has more than tripled. Petroleum and natural gas are exploited as versatile and high quality energy products. Uranium is also tapped to fuel nuclear reactors and provide atomic energy.
两百年前，全球经历了一场能源革命，由此引发了工业时代的到来。从那时起，随着人口密度的迅速增加，工业国家对于能源的需求成倍成倍增加。石油和天然气被看作是用途多、质量好的能源产品而得到开发，而铀也得以开发，为核反应堆提供燃料并供应原子能源。
Cheap energy is the lifeblood of human society. But there is a dark side to the near monopoly of non-renewable fossil fuels like coal, oil and natural gas， along with controversial uranium, to supply our growing energy demands.
廉价能源是人类社会的命脉。但是，几乎垄断煤炭、石油和天然气等不可再生化石燃料，以及有争议的铀，以满足我们日益增长的能源需求，还有一个阴暗面。
The supply of these fuels is physically limited, and their use threatens our health and environment. Multiple international treaties have been proposed to limit the use of fossil fuels for this very reason.
这些燃料的供应实际上是有限的，它们的使用威胁到我们的健康和环境。为此，已经提出了多项国际条约来限制化石燃料的使用。
Fears of global warming aside， burning fossil fuels releases chemicals and particulates that can cause breathing problems, cancer as well as brain and nerve damage. Nuclear energy, once hailed as"too cheap to meter"， has never been economically successful when all costs are factored in.
抛开对全球变暖的担忧不谈，燃烧化石燃料会释放出化学物质和微粒，导致呼吸问题、癌症以及大脑和神经损伤。核能曾被誉为“太便宜，无法计量”，但如果将所有成本都考虑在内，它在经济上从未取得成功。
Furthermore, public opinion polls show nuclear energy is too closely associated with disasters like the Chernobyl reactor meltdown and the Fukushima explosion, and with the danger that: rebel insurgents could do damage with the toxic waste.
此外，民意调查显示，核能与切尔诺贝利（Chernobyl）反应堆熔毁和福岛（Fukushima）爆炸等灾难有着太密切的联系，而且还存在着这样的危险：反叛分子可能用有毒废料造成破坏。
Inexpensive and seemingly abundant non-renewable energy from dead plants and extinct animals fueled the 20th century economy, but geologists, climatologists,environmentalists, and many others are warning that the honeymoon may soon be over.
从死去的植物和灭绝的动物身上获得的廉价且看似丰富的不可再生能源推动了20世纪的经济发展，但地质学家、气候学家、环境学家和许多其他人警告说，蜜月可能很快就结束了。
扩展资料
主要考察的是过去完成进行时的知识点：
用法：
表示过去某一时间之前一直进行的动作。过去完成进行时表示动作在过去某一时间之前开始，一直延续到这一过去时间。和过去完成时一样，过去完成进行时也必须以一过去时间为前提。
I had been looking for it for days before I found it.这东西我找了好多天才找着的。
They had only been waiting for the bus a few moments when it came.他们只等了一会儿车就来了。
表示反复的动作。
He had been mentioning your name to me.他过去多次向我提到过你的名字。
You had been giving me everything.你对我真是有求必应。
常用于间接引语中。
The doctor asked what he had been eating.医生问他吃了什么。
I asked where they had been staying all those days.我问他们那些天是呆在哪儿的。
接具有“突然”之意when句。
I had only been reading a few minutes when he came in.我刚看了几分钟他就进来了。
She'd only been reviewing her lessons for a short while when her little sister interrupted her.她温习功课才一会儿，她妹妹就打断她了。
I had been sleeping when my friend telephoned me.我正在睡觉时，我的朋友给我打电话。