英语听力：自然百科 史蒂芬弗莱中美洲游记:墨西哥Mexico—21

《英国独立电视台：史蒂芬弗莱中美洲游记》 ITV: Stephen Fry in Central America 第一集 墨西哥 Episode 1 - Mexico Seven years ago, Stephen Fry travelled through all fifty states of the USA in a black cab. But hes always been fas

英语听力：自然百科 旅游业发展威胁吴哥窟未来

Cambodias ancient temples at Angkor Wat are under threat from the large numbers of tourists who are now visiting the site. There are fears that ongoing damage to the temples soft stone may mean they could eventually be destroyed. The temples at Angko

英语听力：自然百科 非洲采矿童工状况堪忧

Every week, more children arrive to work in the hundreds of primitive mines in the bush. Here they endure long hours at dangerous jobs, wringing flecks of gold from the dirt with mercury. One of them is a 12-year-old boy named Saliou. Momodou is just

英语听力：自然百科 吉萨金字塔中的地下船

Visitors at Egypt's Giza Pyramids on Saturday got a rare opportunity. They were able to catch a glimpse inside an underground chamber, just south of the Great Pyramid containing the pieces of an ancient funerary boat which many believed was intended

英语听力：自然百科 澳洲农业每况愈下

In Australia, its not just livestock hit hard by draught, but the next generation of farmers. At 24, Robert Watt, a farmer from Alectown, a region of Australia, has had seven seasons on the farm, but not one year of profit. He says the draught, plus

英语听力：自然百科 旱灾的成因与影响

旱灾的成因与影响 Its signs are subtle and slow: the earth dries; water levels fall; the rains do not come; and the land is gripped by drought. At its most basic, a drought occurs when more water is used than isreplenished. It is a balance bet

英语听力：自然百科 小鲸鱼错认游艇为母

Animal Conservationists in Australia expressed concern on Tuesday that a lost humpback whalecalf separated from its mother could die within days, unless it finds its own mother or another mother to adopt it. The calf believed to be one or two months

英语听力：自然百科 狗狗天堂在美国

From the playful to the practical. To the cute, to the honored, dogs are everywhere in America. Today there are about 70 million dogs in United States alone, one for every four people. But what is our obsession with them, and how much do we really lo

英语听力：自然百科 “圣徒”死神？

Death just isn't what it used to be. Once a month, followers attend mass at the Santa Muerte Shrine and pray to the so-called Death Saint, often depicted as a skeleton dressed in a black cloak and carrying a scythe, or in a long flowing white gown. S

英语听力：自然百科 印度的双胞胎村

The remote village of Kodinji in southern India, population about 13,500, is home to more than 100 pairs of twins, and 90% of those were born within the last 18 years. No one quite knows why, and no published study explains the phenomenon. At the las

英语听力：自然百科 Rosetta航天探测器

The European Space Agencys deep space probe Rosetta transmitted high-resolution images of anasteroid millions of miles from Earth. Rosetta caught up with the Steins Asteroid Friday night in the asteroid belt between the orbits of Mars and Jupiter. Un

英语听力：自然百科 鲨鱼湾的海豚—14

The research team have been out since dawn looking for Puck. It's now the height of the shark season, Semu, who's been born at the worst time. We've been waiting for Puck to have a calf, and now finally she's finally here, we're all too so relieved t

英语听力：自然百科 鲨鱼湾的海豚—15

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英语听力：自然百科 鲨鱼湾的海豚—16

Three days past, and the research team is once again out looking for the beaches. They catch up with Puck and Semu, she leads him out into deep water for the first time, which is a first big challenge. Deep water is a much more dangerous place for Se

英语听力：自然百科 鲨鱼湾的海豚—17

Just how the news of the birth travel so far and how only the mums with their calves know where to come is unknown. But just the Beaches family seems to welcome Puck and Samuel. The bay's other mums seem to want to do the same. It's Samuel's first ch

英语听力：自然百科 国家地理：钻石：黑暗的一面—10

When detectives began looking for Lenonardo Natarbaktolo, his office was empty. His mobile phone went straight to voice mail. He had a jewelry shop in Itlay, but no registered home address in Antwerp, and no one had seen him since Friday before the c

英语听力：自然百科 国家地理：钻石：黑暗的一面—9

Detectors immediately suspected the diamond thieves' dumped bag as they made their getaway. -There was tape. There were metals. There were tools. There was left money, even jewels, so it was clear to us that whatever was left in the Billboard related

英语听力：自然百科 国家地理：钻石：黑暗的一面—8

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英语听力：自然百科 国家地理：钻石：黑暗的一面—7

It was becoming clear how the brave and expert thieves pulled off the world's biggest gem robbery. From a flight of stairs in the diamond center car park, they used a stolen key to open the door leading to the vault, and there they somehow managed to

英语听力：自然百科 国家地理：钻石：黑暗的一面—6

The legitimate profits of an illegal trade with a rebel leader who would be convicted for crimes against humanity.-He's ready to give me everything. Well, the profits were enough to make a smuggler millionaire many times over. Dealing with the blood-