Diamonds

Lesson Six Text A Diamonds Diamonds are rare, beautiful, and also quite useful. They are the hardest substance found in nature. That means a diamond can cut any other surface. And only another diamond

有声英文阅读-钻石

Diamonds 钻石 Diamonds are rare, beautiful, and also quite useful. They are the hardest substance found in nature. That means a diamond can cut any other surface. And only another diamond can make a

双语有声阅读:Diamonds 钻石

Diamonds Diamonds are rare, beautiful, and also quite useful. They are the hardest substance found in nature. That means a diamond can cut any other surface. And only another diamond can make a slight cut in a diamond. Diamonds are made from carbon.

英国学生科学读本 第4期:黑铅

Lesson 4 Black-lead 第四课 黑铅 What is the black-lead in your pencil made of? If you take a bit of the metal which we call lead, you will find that it is grey in colour, very heavy, and not at all like the black-lead in your pencil. But the lea

SSS 2011-08-25

This is Scientific Americans 60-SecondScience. Im John Matson, got a minute? Say you need a diamond. You could go downto the jeweler, or you could put some carbon deep underground and let it sitfor a couple billion years. Or you could hop in a starsh

【英语时差8,16】钻石能“永远”的秘密

Why Diamonds Really Are Forever Diamonds are forever they say, and this is why: diamonds are the hardest substance known to exist. Nothing would scratch or damage a diamond，While a diamond can scratch any other material on the earth. Everything is

VOA常速英语2008年-ADB Forecasts Solid Growth for Asia in 2008

By Claudia Blume Hong Kong 02 April 2008 The Asian Development Bank says while Asia will not be immune to the global slowdown, economies in the region will continue to see solid growth in 2008. But the bank warns in its annual outlook that inflation

VOA常速英语2007-Sierra Leone's Diamonds Fail to Fuel Growth

By Naomi Schwarz Bo, Sierra Leone 22 October 2007 As Sierra Leone's recently elected president, Ernest Koroma, begins governing, many observers are watching to see how he will tackle corruption. Some say corruption is the reason the country's huge di

SSS 2011-12-14

When it comes to sheer celestial bling, stars might not corner the market on twinkle, because beneath their rocky exteriors, some terrestrial planets may be half diamond. So said scientists at the fall meeting of the American Geophysical Union. The r

VOA标准英语 ADB Predicts Sluggish Growth for Developing Asia

A new report predicts developing Asia's economic growth will slow by almost half this year, but the Asian Development Bank forecasts that the region will rebound in 2010. Developing Asian economies are likely to grow by an average of 3.4 percent in

VOA标准英语2013--Africa Sees Strong Economic Growth

Africa Sees Strong Economic Growth The World Bank says while the global economic recovery remains slow, sub-Saharan African countries continue to grow at a strong pace. The bank has released its latest economic forecast for the region. Four years aft

英语听力：自然百科 永恒的钻石（二）

The secret of the diamond lies in the carbon bond. Carbon is one of the most plentiful substances known to science. We find carbon in plants, animals and our bodies. Carbon everywhere. And yet diamonds are some of the rarest, most beautiful of all su

欧元区经济增长疲软

欧元区经济增长疲软 LONDON, Nov. 11 (Xinhua) -- The European Bank for Reconstruction and Development (EBRD) Monday lowered its forecast for growth in its main area of operations, the transition European and central Asian states, to 2.0 percen

Asia-Pacific Region Critical to US Economic Recovery

In the Pacific state of Hawaii, U.S. President Barack Obama on Sunday told leaders of the 21 Asia Pacific Economic Cooperation economies that the region will be key to U.S. economic recovery. With much of the formal summit activity, including a worki

2015年CRI Chinese Authorities Pledge More Efforts to Maintain ＂Beijing Blue＂

People have been sharing photos of the blue skies in Beijing on the Internet over the past few days. Posts on the topic of Beijing Blue Sky have been viewed millions of times on social media. Su Wei from the National Development and Reform Commission

VOA双语新闻 --- ADB Forecasts Solid Growth for Asia in 20

The Asian Development Bank says while Asia will not be immune to the global slowdown, economies in the region will continue to see solid growth in 2008. But the bank warns in its annual outlook that inflation in the region will jump this year. 亚洲开

美国科学家发现新物质“比钻石还硬”

There is a new substance that is harder than diamond. It's called Q-carbon, and it was created by researchers at North Carolina State University. 北卡罗莱纳州立大学的研究人员研发出一种名为Q-碳的新物质，其硬度比钻石还高

美研究人员研发出新物质,硬度比钻石还高

There is a new substance that is harder than diamond. It's called Q-carbon, and it was created by researchers at North Carolina State University. 北卡罗莱纳州立大学的研究人员研发出一种名为Q-碳的新物质，其硬度比钻石还高

经济学人:气候变化 高举环保大旗

Climate change 气候变化 Raise the green lanterns 高举环保大旗 China is using climate policy to push through domestic reforms 中国以环境政策推动国内改革 WHEN world leaders gathered in Paris to discuss cutting planet-heating emis

Policies, tech draw vision of low-carbon growth

BEIJING, Sep. 16 (Xinhuanet) -- Government incentives are important to pave a low-carbon road to economic growth, but companies that improve their industry models and technologies are the main players and also benefit receivers, noted officials and i