英语励志美文精华 46

Life Grows in the Soil of Time by Thomas Mann What I believe, what I value most, is transitoriness. But is not transitoriness - the perishableness of life - something very sad? No! It is the very soul of existence. It imparts value, dignity, interest

VOA常速英语2014--美国海军实验室成功将海水转变成燃料

US Navy Lab Turns Seawater Into Fuel 美国海军实验室成功将海水转变成燃料 For centuries, alchemists have tried to turn lead into gold. That transmutation has long been proven impossible, but another similar dream - turning water into f

VOA慢速英语2014 美国欲测试福岛辐射值

AS IT IS 2014-08-02 Americans Test Seawater for Fukushima Radiation 美国欲测试福岛辐射值 It has been more than three years since the nuclear accident at the Fukushima power station in Japan. Millions of liters of radioactive cooling water f

SSS 2009-08-21

The Great Pacific Garbage Patch may be disappearing, and not in a good way. New research presented at the biannual meeting of the American Chemical Society reveals that polystyrene actually can break down in seawater. Polystyrene is probably better k

That arn computer well is important.

本讲为2006年下半年新的教学内容，请对照讲义听声音！ Students(researcher/scholar) of Nature are not satisfied with guessing, but they observe, day after day, the changes which tak

国家地理-2008-05-11 Fighting Fire with Fire 以火攻火 保护森林

It's been protected from human impact since 1909. With three million acres, nearly a half million under water, Superior National Forest is largely unspoiled. But now the survival of this national treasure rest with those who would see some of it bur

未来水环境让现有鱼类很难生存(有声)

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

SSS 2010-07-08

More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor

海水淡化：中国水源危机的一线希望

More government support, including subsidies and a favorable pricing mechanism, is needed for the country to use desalinated seawater to quench its thirst, a top industry expert said。 The lack of an effective pricing mechanism for desalinated water

美国国家公共电台 NPR To Appeal To A Modern Palate, Native Chef Gives Tradition A Little Twist

AILSA CHANG, HOST: When I think of my favorite foods, I can tick off my favorite Chinese dishes, Mexican dishes, Italian dishes. But if you asked me what Native American dish I enjoy most, I'd be stumped. There's a growing number of Native chefs who

TED演讲:怎样选择适合你的防晒霜(1)

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种，每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

英闻天下——455 Over-exploitation of Groundwater

Over-use of groundwater may cause landslides. However, in costal areas it also brings seawater intrusion. Let's take a look at the problem with our reporter Zhang Wan. In a village in the costal area of Dalian, Liaoning Province, many villagers compl

李克强总理鼓励科技创新

Premier Li Keqiang says China should consider science and technology as a primary productive force. Scientific and technological innovation to a large extent determines the future of China's development strategy. In history, we have missed several te

万物简史 第471期:生命在前进(13)

Sprigg submitted a paper to Nature, but it was turned down. 斯普里格给《自然》杂志写了一篇论文，但是没有被采用。 He read it instead at the next annual meeting of the Australian and New Zealand Association for the Advancement

万物简史 第132期:基本物质(4)

Although chemistry had come a long way in the century that separated Newton and Boyle from Scheele and Priestley and Henry Cavendish, it still had a long way to go. Right up to the closing years of the eighteenth century (and in Priestley's case a li

《荒野求生》之跟着贝尔去冒险第178期:绝好的救生食品

Packed with proteins and minerals,oysters are the perfect survival food, 牡蛎富含蛋白质和矿物质 是绝好的救生食品 and there's an almost endless supply. 而且几乎取之不尽 It'd be nicer sharing it with the love of your life and

英文短篇故事（纽约）384 Where Did the Oceans Go?

A huge meteorite crashed into the Atlantic Ocean. Babies who were sound asleep in Asia heard the impact. The meteorite went through the ocean bottom. It created a hole deep in the Earth. All the seawater from the Atlantic started rushing into the hol

万物简史 第219期:把铅撵出去(8)

Finally, and perhaps a little unexpectedly, readings can be thrown out by seemingly unrelated external factorssuch as the diets of those whose bones are being tested. One recent case involved the long-running debate over whether syphilis originated i

万物简史 第385期:浩瀚的海洋(4)

Water is so vital to us that it is easy to overlook that all but the smallest fraction of the water on Earth is poisonous to us, 水对我们太重要了，因此我们不容易注意到，地球上绝大部分的水对我们来说都是有毒的，

Sweet Bait Lures Malaria Mosquitoes

Israeli(以色列) researchers say they have developed a powerful bait that effectively attracts and kills malaria-infected mosquitoes but is completely harmless to humans and other animals. The toxic sugar bait developed by scientists at Hebrew Univ