英语听力：自然百科 纪念《物种起源》面世150周年

One of the most iconic animals of the Galapagos Islands is the Giant Tortoise. Charles Darwin wrote of this tortoise in his famed report , Origin of Species, published 150 years ago this month. The differences between the tortoises from island to isl

VOA常速英语2015--无人机帮助科学家们研究澳大利亚濒危的考拉

无人机帮助科学家们研究澳大利亚濒危的考拉 Koalas spend most of their lives in eucalyptus trees,whose leaves are their favorite food. Since the leaves are low on calories and nutritional content, koalas are not very active-they slee

新东方优美背诵短文50篇 Unit34:Raising Oysters

34 Raising Oysters In the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about.

万花筒 Kaleidoscope2007-10-09&10-10, 美国小姐致力儿童浏览器

It's Oklahoma Lauren Nelson. When Lauren Nelson of Oklahoma was crowned Miss America 2007, she dedicated her community service platform to keeping children safe on the internet. Nelson has a very personal reason for advocating safe web browser. When

VOA标准英语2015--夏威夷濒危鸟类得到第二次机会

Endangered Hawaiian Birds Get Second Chance 夏威夷濒危鸟类得到第二次机会 Of the world's nearly 9,900 bird species, 13 percent - one in eight - are threatened with extinction, according to BirdLife International. Among them are two Hawai

万花筒 2013-01-01&0104 史上最暴力 长颈鹿之间的斗殴

Maybe the most violent giraffe fight ever caught on tape for those of you who keep track of such things.Stunning video from the discovery channel shows two giraffes using their 6-foot long necks as weapons to go after each other. ABC's Paula Faris ha

英文书摘精选 杀手猫-每年杀死37亿只禽类

Killer Cats: Cats Kill Up To 3.7 Billion Birds Each Year 杀手猫：猫每年杀死37亿只禽类 Its time to go again to the A Moment of Science mailbag. A listener writes: 又到了《科学一刻》听众来信时间了。一位听众写道： De

VOA常速英语2014--Fences and Wildlife Don’t Mix 围栏与野生动物不能共存

Fences and Wildlife Dont Mix 围栏与野生动物不能共存 If you want to protect endangered species in the wild, dont fence them in. An article in the journal Science says fencing can actually harm both animals and ecosystems. Scientists at the

2007年VOA标准英语-Farmers Use Llamas to Protect Sheep

By Margaret Kennedy Shenandoah Valley, Virginia 30 August 2007 Sheep producers in the United States face a growing problem with coyotes -- the wild dogs native to America's southwest that in recent decades have extended their range eastward. Agricult

VOA标准英语2012--Wind Turbines Take Steep Toll On Birds And Bats

Wind Turbines Take Steep Toll On Birds And Bats Estimates by the Department of Energy indicate that in the United States alone, there will be more than 100,000 wind turbines by 2030. John Anderson is policy director at the American Wind Energy Associ

美国国家公共电台 NPR Of Power, Predators And Innocent Mistakes: The Complex Problems Of Sexual Harassment

LULU GARCIA-NAVARRO, HOST: And this is The Call-In. (SOUNDBITE OF MUSIC) GARCIA-NAVARRO: We're looking at sexual harassment and posing the question, what behavior crosses the line? This past week, more men in positions of power lost their jobs due to

美国国家公共电台 NPR How An Interview With A Shark Researcher Wound Up Starring A Shark

STEVE INSKEEP, HOST: We have a very close view this morning of the sharks that have been swarming around some Southern California beaches. Why would dozens of sharks turn up there in recent weeks? Chris Lowe studies them. So we placed a call - or we

科学美国人60秒 SSS 飞蛾帮你改进智能手机屏

Moths Inspire Better Smartphone Screens One of the things that makes your smartphone so smart is that if you pull it out in the sun, it senses thatand dials up the screen brightness to compensate. But it's not a perfect solution. 智能手机非常智能

英语听力：自然百科 肯尼亚偷猎状况恶化

This is Kenya's Masai Mara, one of Africa's great natural wonders, filled with a wonder of life. But these days political unrest has scared away many tourists. And fewer visitors means less revenue to protect the animals that live here. The nearly 60

英语听力：2013-07-21 《恐龙的战争》3 顽强防御—16

Thats a wave of energy that could knock over a predator or at least discombobulate it, scramble its brains. Despite holding a deafening secret weapon, a Parasaurolophus, like other plant eaters, knows that the best way to stay alive is to keep predat

英语听力：2013-05-15 完美捕食 Perfect Predators —6

Thats what it wants to hear, because that sound is gonna mean thats where lunch is. A battle with Triceratops is more often than not a fight to the death. This herbivore has evolved into a tank. Now, as a Tyrannosaur specialist, I dont like to admit

英语听力：2013-05-22 完美捕食 Perfect Predators —9

And Sauroposeidon like most plant eaters are smelly. Unlike a meat eater, they produce huge amounts of waste, feces that form a trail marking everywhere theyve been. For Deinonychus, that odor is a dead giveaway. And this carnivores eyes can clearly

英语听力：2013-05-29 完美捕食 Perfect Predators —12

Deinonychus instinctively knows to go for this giants weak spot, its neck. Youve got the windpipe there. Youve got the jugular vein, which if opened up will mean that that Sauroposeidon is dead meat. But death does not come quickly or pleasantly. For

英语听力：2013-05-17 完美捕食 Perfect Predators —7

Attacking another T-Rex may seem like suicide, but a creature with such a voracious appetite has to find food by any means. Cannibalism is the rule. Its not the exception. If youre a carnivore and theres meat there, you take advantage of it. In fact,

2007年VOA标准英语-Australia Urged to Protect Pristine Coral Sea

By Phil Mercer Sydney 17 September 2007 Conservationists have started a campaign to urge the Australian government to formally protect the Coral Sea, one of the country's last tropical marine wildernesses. A coalition, led by the World Wildlife Fund,