2010-07-22 所属栏目:英语听力材料

The earth’s tropics teem with species. They’re far more biologically diverse than the cooler parts of the planet. And scientists have credited higher temperatures and greater amounts of sunlight. Bu

2010-07-21 所属栏目:英语听力材料

Israel's new anti-rocket system, called the Iron Dome, has passed final tests and will be deployed near the country's borders by November. The system was produced by the state-owned Rafael Arms Dev

2010-07-21 所属栏目:英语听力材料

It's an aquatic version of follow the leader. Dr.Manrizio Porfiri of NYU's Polytechnic Institute has combined his love for mathematics and animals to invent a robot that he says would one day be abl

2010-07-21 所属栏目:英语听力材料

Nelson Mandela's grandchildren and great-grandchildren surrounded him as they sang to celebrate his 92nd birthday.The private party for the former South African president was held in his home in Joha

2010-07-21 所属栏目:英语听力材料

A couple of studies on perception. First, there’s now visual data to back up the idea that everything looks kinda gray when you feel blue.Researchers examined how the retina responds to different bla

2010-07-20 所属栏目:英语听力材料

2009年4月11日，在英国著名的选秀节目《英国达人》中,平民大妈苏珊演唱《我曾有梦》一举成名，评委和在场观众被浑厚而富有磁性的天籁之音所震撼,这一幕,成为2009年4月中旬全球网络点击量最高的视频。在央视《星光大道

2010-07-20 所属栏目:英语听力材料

Scientists are reporting a dramatic increase in dead and debilitated sea turtles found since the Gulf oil spill in April 2010. EarthSky spoke with Barbara Schroeder, national sea turtle coordinator fo

2010-07-20 所属栏目:英语听力材料

Former President Bill Clinton addressed the 18th International AIDS Conference in Vienna Monday. He said while much progress has been made in the fight against the epidemic, much more remains to be do

2010-07-20 所属栏目:英语听力材料

Bill Gates says in these tough economic times, more efficiency is needed in HIV/AIDS treatment and prevention programs. At the same time, he says more people need to be on anti-retroviral drugs. The

2010-07-20 所属栏目:英语听力材料

New York Yankees pitcher Andy Pettitte had to leave Sunday’s game against Tampa in the third inning because of a strained groin. He thus slightly beat the odds. Because his injury happened after the

2010-07-19 所属栏目:英语听力材料

ROBERT SIEGEL, host:A California couple have become the unlikely stars of the family blog world. They have a few thousand fans on Facebook, and thousands more visit their website every day - not bad f

2010-07-19 所属栏目:英语听力材料

In late June, Hurricane Alex ushered in what some scientists say might be a busy 2010 Atlantic hurricane season. EarthSky spoke with research climatologist and oceanographer Bill Patzert of NASA’s Je

2010-07-19 所属栏目:英语听力材料

At the 18th International AIDS Conference in Vienna, a new report outlines the challenges and opportunities facing vaccine researchers. The report – The Road to Prevention – is called a scientific

2010-07-19 所属栏目:英语听力材料

Ryan Welch beat nearly a thousand other card players to win a gold bracelet and a half million dollars in one of this year's 57 events at World Series of Poker. The month-long tournament in Las Vegas

2010-07-19 所属栏目:英语听力材料

上海世博会展示了一种新型汽车，可以像鱼一样在路上行驶，可以选择适当的路线，不会撞车，不需要人驾驶，也不会污染环境。这对于交通异常繁忙的现代社会来说，无疑是个惊喜。
Traffic jams, car accidents, carbon

2010-07-19 所属栏目:英语听力材料

MARY LOUISE KELLY, host:And now we go from creatures in the water to creatures in the sky. Here's what we'd like you to do this morning: look up at the sky and ask yourself, who's up there? Maybe y

2010-07-19 所属栏目:英语听力材料

Heavy rains we're not the only cause of recent urban flooding, according to University of Georgia research meteorologist Marshall Shepherd. His June 2010 study also blames what he calls ‘impervious

2010-07-19 所属栏目:英语听力材料

About half of the world’s population eats rice daily. It’s one of the globe’s most important food staples, said plant geneticist Pamela Ronald. But, she added, around 25% of that rice is grown in f

2010-07-18 所属栏目:英语听力材料

International organizations that work with HIV/AIDS issues say unless more money is provided for programs in developing countries, the campaign to eradicate the disease will suffer a 20-year set back.

2010-07-18 所属栏目:英语听力材料

Sales of condominiums in the United States are rising, despite ongoing volatility in the nation's housing market. Real estate industry leaders say condo sales rose more than 30 percent over the past

2010-07-18 所属栏目:英语听力材料

Win some and lose some. And today the CIA has lost one of its once most valuable former spies:an Iranian nuclear scientist who defected to the US but is now on his way home to Tehran after a very mess

2010-07-17 所属栏目:英语听力材料

U.S. President Barack Obama is cautiously optimistic, now that an experimental cap has stopped oil from gushing from BP's ruptured well in the Gulf of Mexico. President says the cap is a temporary s

2010-07-17 所属栏目:英语听力材料

The United States is strongly condemning suicide bomb attacks Thursday against a Shi'ite mosque in Iran, a country that is listed by Washington as a state sponsor of terrorism. President Barack Obam

2010-07-17 所属栏目:英语听力材料

Few things in life are as simple or complex as bread.

The same four essential ingredients - flour, water, yeast and salt - can yield 10,000 different combinations.

That's what author William

2010-07-17 所属栏目:英语听力材料

When it comes to evidence, the camera doesn't lie. Over the years , law enforcement here in Seattle has used video cameras and their police cruisers to show proof of a crime of just a document proper