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蛋白质让紫外线照射更安全
The early bird gets the worm—and may avoid skin cancer. Because a new mouse study suggests that, for humans, tanning in the mornings may be less likely to permanently damage DNA and cause skin cancer
英语听力材料2011-11-05 -
弃医从教以疗伤
AUDIE CORNISH, host: Each month this school year, we're bringing your stories from teachers across the country. It's part of the StoryCorps National Teachers Initiative. Ayodeji Ogunniyi, is an Engl
英语听力材料2011-11-04 -
利比亚重建经济与未来
As Libyans try to resume their normal lives after the uprising that ended Moammar Gadhafi’s 42-year rule, many hope for economic improvements and more jobs. In Tripoli, people are starting to once ag
英语听力材料2011-11-04 -
海洋中的塑料:危害更甚于气候变化
The United Nations estimates that each one of us uses nearly 140 kilograms of plastic each year. At least 6.4 million metric tons of that plastic has ended up in the oceans. Environmental activist Cap
英语听力材料2011-11-04 -
被忽视的疾病困扰着南亚的贫困人口
At a time when economists predict that South Asia's economy will grow, health experts point to hundreds of millions suffering from neglected infections, often as a result of poverty. In a series of
英语听力材料2011-11-04 -
从鸟类身上看人类医学问题
They say what doesn’t kill you makes you stronger. But sometimes what makes you stronger can kill you, at least when it comes to blood clotting. Because the stickiness that allow platelets to heal yo
英语听力材料2011-11-04 -
万圣节，来鬼屋练胆吧！
ROBERT SIEGEL, host: From NPR News, this is ALL THINGS CONSIDERED. I'm Robert Siegel. And today, in honor of Halloween, you get to hear one of our reporters as you have never heard her before.(SOUNDB
英语听力材料2011-11-03 -
阻止索马里海盗继续发展
The U.N. Security Council recently adopted a resolution calling for tougher anti-piracy measures off the Somali coast. One expert says deterring piracy requires a land-based solution with grassroots s
英语听力材料2011-11-03 -
农业帮助难民落地生根
For refugees, starting over in a new country can feel like landing on a new planet. It’s difficult enough to understand daily life, much less face the challenges of finding a job.In America’s Pacifi
英语听力材料2011-11-03 -
人工语音模仿真实的东西
At a University of Arizona laboratory, Professor Brad Story analyzes the voices of singers, actors and public speakers both live and on audio tape.Computers break down speech digitally. Magnetic-reson
英语听力材料2011-11-03 -
解密狮子老虎的吓人吼叫
For many potential entree animals this (LION ROAR) is one of the scariest sounds around. Scientists long thought the lion’s distinctive roar was due to thick layers of fat inside the vocal cords. Bu
英语听力材料2011-11-03 -
美国的慈善事业经历艰难时刻
For the first time in her life, Jameka Usher is homeless. Since April, when the family was evicted, she and her four children have been living in rooms provided free by the Salvation Army. The Ushers
英语听力材料2011-11-02 -
美国推进阿巴两国和平进程
Foreign ministers are meeting in Turkey this week to endorse Afghan efforts for a political solution to the decade-long conflict and to determine a plan for a sustainable Afghan economy. Analysts say
英语听力材料2011-11-02 -
阿富汗与巴基斯坦合作查凶
The presidents of Pakistan and Afghanistan have been holding their sixth trilateral summit with their Turkish counterpart in Istanbul. The meeting between the Pakistani and Afghan leaders is the first
英语听力材料2011-11-02 -
英王室女性将获同等王位继承权
Something gigantic happen to once upon a time, today all those stories about girls who want to be princess as well, guess what? The Nations of the British Commonwealth agree to change the rules after
英语听力材料2011-11-02 -
教堂里的赞歌
Venice's Church of the Most Holy Redeemer has held a musical celebration every year since its construction in 1592. And recently, the church has inspired debate among historians: How could its echoin
英语听力材料2011-11-02 -
自由女神庆生后退幕修整
10月28日是美国纽约自由女神像125岁生日，纽约市专门举办庆祝活动，纪念这一特殊的日子。在其庆典仪式上，启动了5个安装在火炬上的网络摄像机，让全球民众能随时欣赏到纽约的港口风光，还能看到自由女神像下方的参观
英语听力材料2011-11-01 -
宾夕法尼亚人自己的万圣节
Once a year, on the holiday known as "Halloween", American parents tell their kids it’s okay to take candy from strangers; as they go from door to door in costume in the traditional practice called "
英语听力材料2011-11-01 -
欧元区领导人试图说服中国提供帮助
One element of the deal reached by the Euro zone leaders, is to raise the region's bailout fund, or European Financial Stability Facility, to about one trillion euros.The chief of Europe's bailout f
英语听力材料2011-11-01 -
美国75岁作曲家仍创意无限
American composer Steve Reich turned 75 this year. The so-called “minimalist” credits jazz, African drumming and Balinese gamelan as inspirations.His music - from experimental tape loops to the Puli
英语听力材料2011-11-01 -
索马里难民逃离不安全地区
Kenya's military offensive against Islamic extremists in southern Somalia is sparking concern about a fresh exodus of Somali refugees to camps in Ethiopia. The rainy season has arrived in most of the
英语听力材料2011-11-01 -
喜欢吃甜食的人更好相处?
With Halloween around the corner, parents are fretting over what all that candy will do to their little goblins. Well, it might just make them sweeter. Because people who prefer sugary snacks actually
英语听力材料2011-11-01 -
食人鱼的沟通方式
Like a pit bull, piranhas will tear the flesh from your bones. Also like a pit bull, they bark. [Piranha audio type 1] Kind of.Scientists had known that piranha barked when you pick them up – careful
英语听力材料2011-11-01 -
神舟八号发射时间设置完毕
The spokeswoman for China's manned space program, Wu Ping announced that the unmanned Shenzhou 8 spacecraft will be launched at 5:58 am on Tuesday morning. Propellant has been injected into the upgra
英语听力材料2011-11-01 -
品牌药品面临专利到期悬崖
RENEE MONTAGNE, host: And here's some good news for anyone taking prescription medication. Some of the most popular and expensive brand name drugs are about to go generic. Fred Mogul of member statio
英语听力材料2011-10-31
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