英语听力：自然百科 波兰古都-克拉科夫

Unlike most Polish cities, Krakow's architecture escaped the ravages of World War II. Gothic churches exalt the heavens. Angels still dance over Baroque doorways. But these ancient monuments are threatened. High on a hill, Wawel Castle stands guard o

英语听力：自然百科 缅甸的流浪者-海上吉普赛人

In the waters of Andaman Sea, off the coast of Miyama, a group of sea nomads has made their life among these remote islands for centuries, known as the Moken. Their origins are mysterious. The Moken's extraordinary ability to reap the bounty of the s

英语听力：自然百科 图阿雷格游牧民族

The tuareg people have a proud tradition as nomads, but prolonged drought forced some to settle and try their hand at farming. Here on the edge of Lake Garcy in Mali, they can make this hell bloom and in turn attract the plague of giants. In the dry

英语听力：自然百科 摩洛哥·索维拉

Essaouira's fishermen are getting ready for another year out on the water. All through this Moroccan port, the sounds of boat building and the smell of fresh paint are optimistic signs. But a lot of these is just wishful thinking. Essaouira's sea cat

英语听力：自然百科 印度铁路

At Victoria Terminus in Mumbai, India, it always seems to be rush hour. Everyday some 2 million passengers pass through this train station. Coming into Mumbai is often a very tense commute. But in this country of over a billion people, the best way t

英语听力：自然百科 神秘的驱魔术

It was the drink that set 19th century Paris reeling. Banned for almost a century, absinthe is back. And already a new generation is developing a craving for its unique punch, a wallop some compare to marijuana, speed, even LSD. It casts a spell over

英语听力：自然百科 新奥尔良狂欢节

Japan is crazy for fish. Each morning thousands of merchants crowd Tsukiji food market in Tokyo. At Tsukiji, no product has a higher price than the one that's most taboo, the puffer. It's the seafood version of Russian roulette, and it's extremely po

英语听力：自然百科 海狮轶事

Australian sea lions are lending a hand or maybe a flipper in the establishment of South Australia's marine parks. And along the way the national geographic Crittercam captured a never before seen act of predation，a sea lion capturing and eating a

英语听力：自然百科 海啸揭秘（二）

So our Thai colleagues began soon after the 2004 tsunami with a survey to map out the areas that had been covered by the tsunami. It must have been a horrible job for them because they're going into an area of such disaster and the so much loss of li

英语听力：自然百科 海啸揭秘（一）

Tsunamis infamously ignore international boundaries and so it is that tsunami science needs to ignore international boundaries. This is not the only one of its kind, dont be surprised if another one happens. Tsunamis are caused by major earthquakes o

英语听力：自然百科 野生动物回归莫桑比克

It's early morning in South Africa's Kruger National Park. The morning stillness is broken by the quiet puma helicopters. Their target is a herd of elephants. Within minutes, an expert team is on the ground. These elephants haven't been harmed, just

英语听力：自然百科 罕见的海洋生物

They are mini-masterpieces, built with microscopic elegance, the small and hard-to-see life of the sea, microbes, larvae, burrowers, and they've been photographed and catalogued as part of a massive marine collaboration of scientists from across the

英语听力：自然百科 美国-史密斯岛

Smith Island is a lonely outpost, 12 miles out in the lower Chesapeake Bay. The shallow glassy waters around the cluster of islands that comprise Smith Island are some of the best blue crab habitat in the bay. For more than 300 years the people here

英语听力：自然百科 海洋“死亡地带”

Oceanographer Jack Barth has had plenty of bumpy rides off the Oregon coast, launching and retrieving these underwater gliders. From April to October, they gathered data to help answer questions about the hell of the world's oceans. Alright, buddy, w

英语听力：自然百科 神奇水世界 Water-15

They could not lose. Resistance movements started. They would take over places like this and opened the sluice gate allowing the water to pour back down into Owens Valley. Irregularly they dynamited the aqueduct. But the city rebuilt it and the game

英语听力：自然百科 神奇水世界 Water-9

But the human's struggle to pin down water is forever balanced on a knife edge. Get that balance wrong, and you pay the price. For all their ingenuity, the Garamantes over-exploited their ground water. Eventually, it ran out, and so did their civiliz

英语听力：自然百科 神奇水世界 Water-10

The key was adaptation. Rain. A familiar occurrence in many parts of the world. But this is rain at its most extreme, the monsoon. The significance of the monsoon isn't the human discomfort, but how the people here have learned to live with it. I'm t

英语听力：自然百科 神奇水世界 Water-11

It's just magic. When you follow it, you can see that this is the perfect union of the tree and the villages. The locals have kind of trained the roots, kind of guided them through and netted them together. What they've done here is they've grabbed s

英语听力：自然百科 神奇水世界 Water-12

And this was their greatest achievement: the legendary temple complex of Angkor. You know, a real sense of age of this place here. This was built over 1,200 years ago. At a few places right here you can see a show of the age that faces are all worn,

英语听力：自然百科 神奇水世界 Water-13

But as it grew, the Khmer Kingdom faced the stumbling block. When the monsoon finished each year, the fish and water would vanish. So each year, the inhabitants were plunged into drought and hunger. The Khmer rules off the challenge magnificently. Th