英语听力：自然百科 Rho Ophiuchi Cloud 璀璨的星云

Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

英语听力：自然百科 太阳能墓园

Catalans are famous throughout Spain for their spirit of innovation. That ingenuity has recently been extended to the creation of what, the Associated Press reports, is the Barcelonan area's largest solar energy plant. The solar panels have been inst

英语听力：自然百科 白狮子回归自然

White lions are roaming the African plains once again. Over the past decades, few sightings were reported of these rare big cats in their natural environments. And South African white lions could only be seen in breeding programs and circuses. Now th

英语听力：自然百科 古罗马帝国的“宝石”

Archeologists are hoping to attract tourists to one of the jewels of the Roman Empire. Viminacium was the most important city in the Roman province of Upper Moesia. The city was located in what is today, Serbia. It's believed the Romans first conquer

英语听力：自然百科 墨西哥“水怪” 濒临灭绝

Beneath the tourist gondolas on Lake Xochimilco in Mexico lives a creature that resembles a monster. Known as the water monster or Mexican walking fish, the axolotl is type of salamander. The Ambystoma Mexicano, this species, is the axolotl of Xochim

英语听力：自然百科 火星也下雪？

NASA scientists report NASAs Phoenix spacecraft has discovered evidence of past water at its Martian landing site and spotted falling snow for the first time on Mars. Soil experiments reveal the presence of two minerals known to be formed in liquid w

英语听力：自然百科 以色列发现最古老希伯莱文字

An Israeli archeologist in Jerusalem believes a ceramic shard found in the ruins of an ancient town bears the oldest Hebrew inscription ever discovered. The site overlooks the Elah Valley, said to be the scene of the slingshot showdown between David

英语听力：自然百科 澳洲岩画艺术

Long before the land grew roads and towns, long before the first Westerners arrived, long before humans here even had a word for art, the rock artists of Australia were drawing the Dreamtime. The Dreamtime for the aboriginal people is their story of

英语听力：自然百科 地下镇Coober Pedy

Beneath the hot-skillet surface of the outback where the baked soil crumbles like ashes, there are treasures to be found. In endless warrens of burrowing and hole, every hour of every day, you can find people digging. And virtually all of these indiv

英语听力：自然百科 埃及艳后

Her name is synonymous with beauty, power, intrigue and ultimately tragedy. In 69 BC, Cleopatra was born into Egypt's Ptolemaic Dynasty, a dynasty in decline and under the protection of Rome. At the age of 18, she assumed the throne along with her yo

英语听力：自然百科 绿色养牛法

The Underhill Farm in Somerset, England, is the picture of rural tranquility. But the lush green pastures disguise the fact that farms like this are contributing to global warming. That's because just one cow can produce up to 500 liters of methane g

英语听力：自然百科 中国沙漠化危机

The farmland of Wang Yang-tang in Hubei province lies abandoned. Over the last century, sand has devoured the rich pastures. As sand dunes edge closer to Beijing each year, Northern China's rapidly turning into desert. Shen Zhao-xiang, the director o

英语听力：自然百科 印尼森林境况危殆

Indonesias Papuan forests are under threat according to the environmental activist group Greenpeace. The group has called on the Indonesian government to institute a moratorium on deforestation and industrial logging activities in the country. Most o

英语听力：自然百科 亚马逊雨林的生命树之果

Across the river from Belem Brazil, the largest city in the Amazon Basin, the channels are busy with boat traffic. Here traditional river dwellers make a living by harvesting the black fruit of the thin acai palm tree. In this part of the Amazon, aca

英语听力：自然百科 巴比伦古城遗址损坏严重

For more than one thousand years, Babylon was one of the worlds most celebrated cities, where King Nebuchadnezzar II is believed to have built the Hanging Gardens of Babylon, one of The Seven Wonders of the Ancient World. The ruins of the ancient Mes

英语听力：自然百科 温室效应帮上忙？

Climate change is normally bad news for endangered species, but in the case of Australias Grey Nurse Shark, some scientists suggest it might actually help their fight for survival. The Grey Nurse Shark is one of Australias most critically endangered

英语听力：自然百科 沙尘暴袭击巴格达

A heavy sandstorm blanketed Baghdad on Thursday, causing havoc for residents of the Iraqi capital with flights delayed and dozens of residents with respiratory problems taken to hospitals. Many people on the streets of Baghdad wore scarves or masks o

英语听力：自然百科 墨西哥湖泊与生命的启示

The small town of Cuatro Cienegas in northern Mexico is an oasis (绿洲) in the Chihuahuan desert. It s a valley that holds an example of what some believe is the one of the first human footprints in the Americas（美洲大陆以及附近岛屿）

英语听力：自然百科 “大象营地”回归自然

It's not an easy life for an elephant on Bangkok's busy streets. According to the Associated Press, an elephant in the city must earn about 1,000 US dollars a month to feed itself and make a living for its handler. Using an elephant on the streets to

英语听力：自然百科 纳米比亚的野生世界

From the air, Namibia looks almost uninhabited. Boom towns near depleted diamond mines lie abandoned. Shipwrecks dock the beaches of the skeleton coast. Salt pans, the largest in Africa, reflect sterile white light. 1,200 feet high sand dunes crest o