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石器时代的人类祖先
There’s nothing like a good steak. And our Australopithecus afarensis ancestors apparently felt the same way. Because new discoveries from Ethiopia show that what was likely the species of the famous
英语听力材料2010-08-12 -
为什么黑猩猩会自相残杀?
Chimpanzees kill other chimpanzees, according to a ten-year study conducted in a Uganda national park and released in the journal Current Biology in June, 2010. Primate behavioral ecologist Sylvia Ams
英语听力材料2010-08-11 -
俄罗斯大火也让政府火冒三丈
After 25,000 wildfires, some Russians are starting to place some of the fault on Kremlin policies and mismanagement.Nestled in the woods, surrounded by towering pines, life in the blue trim cottage at
英语听力材料2010-08-11 -
生活质量因体重增加而降低
Americans continue to gain weight and it's having a negative impact on their quality of life, according to a new report.Poor eating habits and a lack of exercise are two of the reasons people gain we
英语听力材料2010-08-11 -
当你的外科医生是个机器人时
Doctors routinely use robotic devices to assist them during surgery. But what if there were no longer doctors sitting at the controls of these machines?
英语听力材料2010-08-11
It could happen. Researchers are exploring -
卡斯特罗患病4年后再度亮相
After mounting rumors over his health and even his whereabouts, Fidel Castro has made his first government appearance for 4 years. The Cuban president appeared before his parliament to make an appeal
英语听力材料2010-08-11 -
舌头让牙齿间隙变大
That’s what it might sound like if I had a tongue stud, hitting my teeth. Maybe you’ve seen people with studs in their tongue clicking it up against their front teeth, a move known as “playing.” B
英语听力材料2010-08-11 -
IPhone手机用户"越狱"合法化
美政府日前通过了版权法案的修正案，该法案将使得成千上万的IPone 手机用户“越狱”合法化——用户可下载尚未被苹果批准的软件应用,欲知具体详情就一起来听听本期节目吧!IRA FLATOW, host: You're listening to SCI
英语听力材料2010-08-10 -
争议中卢旺达总统大选投票
Voting is underway in Rwanda's second presidential election since the 1994 genocide. Though four candidates are vying for the nation's highest office, many expect President Paul Kagame to be reelec
英语听力材料2010-08-10 -
美军对伊拉克撤军表示自信
The commander of U.S. forces in Iraq, General Ray Odierno, says the country continues to face real security challenges weeks before the end of the U.S. combat mission in the country."We have ups and d
英语听力材料2010-08-10 -
英女王Flickr公开王室私密照
It is the latest way for the Queen to engage her public. Hundreds of royal photographs have been placed online by Buckingham Palace. Some images are historic. Others were taken just weeks ago. The aim
英语听力材料2010-08-10 -
蓝鲸"合唱团"
Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed aroun
英语听力材料2010-08-10 -
新型无水小便池帮助节约用水
Taking a leak may soon involve far less trickle of precious water, that is. A California-based company has developed the waterless urinal, saving facilities thousands of gallons of water per year. Jam
英语听力材料2010-08-09 -
加州同性婚姻禁令被判违宪
Good evening breaking news tonight in the America's national debate about what defines a family.Two years ago the voters of California banned gay marriage with 52% of the vote.This afternoon a federa
英语听力材料2010-08-09 -
令人窒息的面具
This I Believe.Lucy Freeman, who writes of mental health and social welfare subjects for the New York Times, is a young journalist whose able reporting in this and other fields has won her wide acclai
英语听力材料2010-08-09 -
委内瑞拉石油储量增加产量下降
Over the last decade, oil production has slipped in Venezuela, even as estimates of the country's petroleum reserves have grown. Venezuela's reserves are now thought to be the world's largest, givi
英语听力材料2010-08-08 -
美国女议员不只交流政治
There are more than 430 members in the U.S. House of Representatives, but only 73 of them are women. Many of these women left behind family and friends to represent their districts in the U.S. Congres
英语听力材料2010-08-08 -
抬头仰望 饱览星空美景
EarthSky often gets asked about what gear you need to see stars and planets in the night sky. Just a simple pair of binoculars will do it, said Stephen J. O’Meara, author of a new book called Explori
英语听力材料2010-08-07 -
谷歌与Verizon的谈判中断
先前盛传就互联网接入的关键问题谷歌与Verizon已达成了协议，但日前谷歌对此表示否认。此协议的内容是什么？它给作为消费者的我们会带来什么样的影响？MELISSA BLOCK, host: Internet giant Google is denying repor
英语听力材料2010-08-07 -
美国呼吁建立无核化的世界
More than six decades after the destruction of Hiroshima and Nagasaki, painful memories still exist among many Japanese as they pray and reflect.Seventy-eight-year-old Tomiko Matsumoto survived the at
英语听力材料2010-08-07 -
英国首架时速超1千英里的汽车
Unveiling a new generation of fast car, this will be in a league of its own. Bloodhound SSC, or super-sonic car is designed not just to break the current land speed record of 763 miles an hour but to
英语听力材料2010-08-07 -
丘吉尔"拯救世界的假牙"拍卖
Getting your hands on some history, starting today. Get this,a set of false teeth worn by Winston Churchill goes up for bid, just time for Christmas. Yow, yow.The teeth helped the Prime Minister give
英语听力材料2010-08-07 -
转基因油菜能离开农场了
One of the concerns about working with genetically modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., research
英语听力材料2010-08-07 -
墨西哥湾缺氧 动物无地栖息
Mandy Joye: The methane concentrations in these plumes are 100 to 10,000 times what you would normally see in Gulf of Mexico water.曼迪•乔伊：墨西哥湾原油层甲烷气体浓度是正常情况下的100到10000倍
英语听力材料2010-08-06 -
联合国努力缓和以黎紧张局势
The United Nations is seeking to calm tensions on the Israel-Lebanon border after a sudden outbreak of violence this week.United Nations, Israeli, and Lebanese commanders met in South Lebanon in a bid
英语听力材料2010-08-06
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