英语听力：自然百科 Green Roofs Are Nothing New 草坪屋顶有利环保

Walk through any town or village in the Faroe Islands, located between Iceland and Scotland, and it will be hard not to notice the green grass roofed houses on every street. A local historian says, because of the lack of natural building resources on

英语听力：自然百科 China Pandas' Bamboo Dwindling 地震造成熊猫口粮短缺

Bamboo, the staple diet of pandas, is reportedly in high demand following last months powerful earthquake in Chinas Sichuan Province. Officials say there is only three to five months' supply of bamboo for the pandas to eat. There are many landslides

英语听力：自然百科 Mozambique's Better Biofuels 莫桑比克：麻疯树生产绿色柴油

With rising fuel prices, more attention is turning to biofuels. But (the) use of food crops for biofuel raises the concern of food shortages. But one non-food biofuel source is gaining attention. Just inland from the southern Mozambique beach resort

英语听力：自然百科 Peru's Artifacts Returned 秘鲁古物回归祖国

Over a hundred artifacts from Pre-Inca and colonial times were returned to Peruvian authorities on Monday after being recovered from private collections in Germany and the US. Peru's Minister of Foreign Affairs handed over the ancient objects to the

英语听力：自然百科 Surviving the Tornado 龙卷风来袭大难不死

A tornado rips across the Missouri Plains. Winds over 150 miles per hour shred everything in the twister's path. When it smashes a trailer home, one man is sucked into the heart of the storm, spun and shaken horrifically. His limp body drops out of t

英语听力：自然百科 Bangladesh Cyclone 强热带风暴席卷孟加拉国

Hundreds of thousands of people in Bangladesh, victims of the worst cyclone to hit the country in a decade were desperately awaiting aid on Monday as the official death toll climbed to over three thousand. With relief aid pouring in, rescue teams bat

英语听力：自然百科 Tornadoes 龙卷风的形成

Call them twisters or tornadoes. They are nature's most violent storms with swirling winds that can top 300 miles per hour. About 800 twisters sweep through the US every year, more than anywhere else in the world. The hardest-hit area is a swath of t

英语听力：自然百科 China's Amazing Flowers 繁花似锦的中国

China has more plants than anywhere else in the temperate regions of the world. In fact, it has almost twice as many kinds of plants as there are in the United States which is about the same size and about three times as many as there are in Europe.

英语听力：自然百科 Child Labor 聚焦世界无童工日

The United Nations International Labor Organization marked the annual World Day Against Child Labor on Thursday to raise global awareness about the cycles of poverty that force millions of children into work, often denying them the chance to an educa

英语听力：自然百科 Quake Lake Blasted 唐家山堰塞湖排洪成功

Chinese soldiers used anti-tank weapons to blast away rocks and mud, holding back waters in an earthquake-formed lake that threatens more than 1 million people living downstream. Soldiers fired at rocks to dislodge enough debris to speed the drainage

英语听力：自然百科 Lost Pyramind Found 发现新的金字塔

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. National Geographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

英语听力：自然百科 Eruption Changing Galapagos 加拉帕戈斯群岛火山爆发

A volcano that started erupting on one of the Galapagos Islands last week may be changing the landscape of the island. According to the Associated Press, rangers and tour guides spotted lava flowing down the northeastern flank of the Cerro Azul Volca

英语听力：自然百科 Sinking England 下沉中的英格兰

All may seem calm along these beautiful stretches of British coastline.But there is a battle being fought on the beaches of Britain.Its a fight for survival against the mighty force of the North Sea. Erosion of this coastline has been going on for th

英语听力：自然百科 City of The Dead Thrives 亡者之城埃及

The City of the Dead is one of the largest graveyards in Egypt, home to thousands of tomb stones dating back as early as the 14th century. It was traditionally a burial ground for Arab conquerors and their relatives. From a distance, set against the

英语听力：自然百科 Pagan Tomb 世上最大的异教徒陵墓

The Valeri Mausoleum, the largest and most luxurious of 22 pagan tombs buried under St. Peter's Basilica[1] in Vatican City, was reopened on Tuesday, according to the Associated Press. The mausoleum lies a few hundred feet away from the burial place

英语听力：自然百科 Brave Bear 北极熊觅食记

In Northern Canada, winter slowly loosens its grip, and a young polar bear is hungry. It sniffs a meal already in progress, and decides to play a dangerous game, a food snatch. His opponent is larger, older, and wont tolerate a rival. A second try, h

英语听力：自然百科 Panda Sensed Earthquake 熊猫预感地震

Did the pandas in Chinas Wolong Reserve know that Mondays earthquake was coming before it hit? A British tourist watching the pandas as the quake struck offered a keen observation. They had been really lazy and just eaten a little bit of bamboo and,

英语听力：自然百科 World Food in Crisis 粮食危机搅动世界

Its being called the worlds worst food crisis since the 1970s. Around the globe, food prices have risen about 40% in the last year, sparking protests and violence in at least 14 countries, and pushing the problem to center stage at the United Nations

英语听力：自然百科 Fuel Cell 聚焦燃料电池

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after year

英语听力：自然百科 New View on Stonehenge Burials 巨石阵新解

The tantalizing mysteries of Stonehenge may have come one step closer toward being solved. New radiocarbon dates of human cremation burials there indicate that Stonehenge was used as a cemetery from its inception just after 3,000 BC until well after