英语听力：自然百科 湄公河域老虎数量锐减

The numbers of tigers in the wild in South East Asia have dropped by more than 70% a little more than a decade. That's the claim in a new report from the WWF. The organization says there were an estimated 1,200 tigers in the Greater Mekong Region dur

英语听力：自然百科 吸血鬼乌贼

This menacing-looking squid is just one of many species out of sight and out of mind that could be threatened by human activities far away from the part of the ocean in which they live. The Monterey Bay Aquarium Research Institute has released this v

英语听力：自然百科 NASA救助冻伤海龟

With record-breaking cold temperatures in Florida this week , efforts to save tropical sea turtles on the beaches are paying off. Beginning last week when the cold snap began, NASAs Kennedy Space Center teamed up with Floridas Fish and Wildlife Conse

英语听力：自然百科 环球风情：夏威夷

In this edition, we head to Hawaii, home to some of the worlds most active volcanoes and if you measure from the bottom of the seafloor to the top of the peak, home to the worlds tallest mountain, too. Hawaii, a land cradled by the sea, a land born o

英语听力：自然百科 环球风情：爱尔兰

Hi, Im Paddy Kim. Ireland, its an exciting mix of the old and the new. Here youll find the quiet of the countryside and the exuberance of the city. But Ireland is still well stocked of this glorious castles and windswept landscapes, it really is the

英语听力：自然百科 环球风情：南非游

Hi, everyone. I'm Patty Kim. Today we're headed for Southern Africa, a place that holds something for every traveler, for every budget: cosmopolitan cities, world-class safaris, not to mention record-setting sites that'll take your breath away. Here'

英语听力：自然百科 环球风情：新西兰（一）

Hi everyone. Im Peddy Kim. Get ready and pack your bags for the playground known as New Zealand, a country whose people are nicknamed for their famous flightless bird, the kiwi. New Zealandit was discovered by humans less than a thousand years ago, t

英语听力：自然百科 环球风情：南非

Hi, Im Petty Kim. This country is close enough to Antarctica to have its very own species of penguin. Would you believe its South Africa? And thats not all. Here are a few more surprises. South Africa is a country of contrasts in the far north bands

英语听力：自然百科 环球风情：秘鲁

Hello, I am Patty Kim. Get ready to explore Peru, home to stunning beaches, majestic mountains and of course, one of the most unforgettable places on earth, the great ruins of Machu Picchu, where the Mighty Inca once ruled. Roughly twice the size of

英语听力：自然百科 环球风情：非洲中西部

Were heading now to west and central Africa, well this region probably didn't get as much exposure as the rest of Africa, but for the intrepid traveler, that's just one of its many charms. You see, less tourists means more chances for you to meet loc

英语听力：自然百科 环球风情：埃及（二）

Hi, Im Patty Kim. We are taking off for Egypt, to one of the most extraordinary sights in the world. The Pyramids at Giza just outside Cario built to honor the ancient Egyptian rulers. These iconic pyramids attract thousands of people every day. Now

英语听力：自然百科 环球风情： 法国

Hi, Im Petty Kim. Whether you are on a mission to see some of Europes finest art, sample cutting-edge(领先的) cuisine or simply just soak up the cultural ambience(气氛), France can seduce you with it all. A Paris, known as the City of Lights and

英语听力：自然百科 环球风情：哥斯达黎加

Our next destination could easily be described as a piece of paradise-- Costa Rica. It is a favorite get-away for both eco-trekkers and the surf set. Now if you are looking to enjoy a bit of the good life, for as they say Costa Rica, la Puda Vida, th

英语听力：自然百科 环球风情：新西兰（二）

Hello, everyone. I'm Peddy Kim. Today we're heading off to New Zealand, well known as a thrill seekers' paradise. Hey this is the country that invented bungee jumping of all things. And that's the just the beginning. So get ready and pack your sense

英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-6

To make sure Kepler's truely found a planet, scientists are using one of the largest earth-based telescopes for conformation. This telescope will also determine the planet's mass and distance from its star. Scientists are most interested in the small

英语听力：自然百科 走进西藏 tibet—2

For the argali, the worlds largest sheep, it means searching for a few tufts of grass. Descending from the hilltops to lower altitudes, the argali band together for safety. Hopefully, down here theyll be able to find enough food to last them through

英语听力：自然百科 走进西藏 tibet—1

The Tibetan Plateau is a quarter of China. Much of it is extremely remote and inhospitable. Its southern border runs through the worlds highest mountain range--the formidable Himalayas. Its central part is a wind-swept and freezing wilderness, the si

英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-5

Because from trillions of miles away, these small planets get lost in the blinding glare of their stars brightness. The sad truth of the matter is that earth-like planets are near cosmic specks of dust. And therefore detecting them is really quite ha

英语听力：自然百科 走进西藏 tibet—4

Fed by the mountain glaciers, the Tibetan plateau even has its own inland sea. This is Qinghai Lake, China's largest. Millions of years of evaporation has concentrated the minerals in the lake, turning the water salty. Rich in fish, its waters attrac

英语听力：自然百科 走进西藏 tibet—3

With hundreds of peaks over 7,000 metres and 13 peaks higher than 8,000 metres, they are the highest mountains on earth. The Tibetan region contains over 35,000 glaciers that cover over 100,000 square kilometres. They comprise the largest area of ice