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One World Trade Center Observatory Opens to Public 世界贸易中心天文台对公众开放 NEW YORK From New Jersey to Long Island, from Northern suburbs to the Atlantic Ocean, with all of New York City in-between. That view became available to th

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Arabian camels and nomadic people are the most recent in a long line of Saharan pioneers. The history of this great region is told in ancient rock art, glimpses of a vanished world. Just a few thousan

VOA标准英语2012--Dire Warnings Issued on Diminishing Arctic Ice

Dire Warnings Issued on Diminishing Arctic Ice Polar bears hunt seals from sea ice, but could drown if forced to swim long distances in open water. Satellite photos released by Americas space agency, NASA, illustrate the daunting threat to such bears

VOA标准英语2010-A Visit to Flood City, USA

Despite Hurricane Katrina, it isn't New Orleans Ted Landphair | Washington, DC 26 April 2010 This Harper's Weekly illustration, published shortly after the flood, was no exaggeration of the churning, watery wall of death that befell Johnstown. One of

英语听力：自然百科 圣河之旅 The Ganges 恒河—1

I am going on a series of astonishing adventures. Traveling along three of the mightiest rivers on the planet.These rivers have given rights to some of the world's greatest civilizations. For centuries, we washed their life-giving waters and feared t

美国国家公共电台 NPR A U.S. Aircraft Carrier Anchors Off Vietnam For The First Time Since The War

RACHEL MARTIN, HOST: The USS Carl Vinson is in De Nang, Vietnam. And it is the first U.S. aircraft carrier visit since the end of the Vietnam War. And it comes at a time of increasing tension between the U.S. and China and between China and some of i

英语听力：自然百科 圣河之旅 Yangtze 长江—1

I am going on a series of astonishing adventures, travelling on three of the planet's mightiest rivers. These rivers have given rise to some of the greatest civilizations. For centuries we worshiped their life-giving waters, and fear their awesome de

英语听力：自然百科 圣河之旅 Yangtze 长江—22

-Something like 10 percent of population of the planet live in the basin, the wide area around the Yangtze River. That is how important this water, this river, is. Just come over here, look what we as a species are capable of. This is, it's display h

2007年VOA标准英语-WWF Says World's Mightiest Rivers Are at Risk

By Anjana Pasricha New Delhi 20 March 2007 Bangladeshi woman clean dirty polythene shopping bags in polluted waters of Buriganga river in Dhaka, 19 Mar 2007 The World Wide Fund for Nature says some of the world's mightiest rivers are dying, threateni

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One of the most famous small towns in America is Johnstown, Pennsylvania, population 24,000.Unfortunately, it owes that fame to a tragedy. In the late 19th Century, Johnstown was the nation's mightiest steel center - more prosperous than Pittsburgh -

【英语时差8,16】用一根绳子连接地球和同步卫星（下）

When you haul something up by rope, you generally think of the object being lifted as the weight. Something we dont consider is that the rope has to be able to lift itself too. Lift itself!?! What does that mean? Think of it this way. If a ten-foot r