2011-10-08 所属栏目:标准英语|常速英语下载|在线收听

Researchers used a substance, made naturally in the body, to reverse diabetes in mice, a finding which could be key to rolling back Type 2 diabetes.The enzyme, called NMN (nicotinamide mononucleotide)

2011-10-08 所属栏目:标准英语|常速英语下载|在线收听

Afghans are expressing a mixture of disappointment and uncertainty about their future, as they mark the anniversary of the start of the Afghan war.The United States launched its military campaign in A

2011-10-08 所属栏目:标准英语|常速英语下载|在线收听

The President Biya has won all three previous elections since multiparty politics were reintroduced in Cameroon in 1990. On all those occasions, the opposition cried foul, alleging widespread fraud –

2011-10-07 所属栏目:标准英语|常速英语下载|在线收听

As news of Steve Jobs' death spreads, many are sharing their feelings about the life and innovations of the Apple Computer co-founder. From Washington, D.C., to Cupertino, and from Hong Kong to the

2011-10-07 所属栏目:标准英语|常速英语下载|在线收听

Russian President Dmitri Medvedev will swap jobs next year with Prime Minister Vladimir Putin. In this report from Washington, senior correspondent Andre de Nesnera looks at the ramifications of such

2011-10-07 所属栏目:标准英语|常速英语下载|在线收听

Wild and unpredictable swings on financial markets are making investors seek better ways to gauge the future direction of the economy. Market participants have traditionally - and successfully - watc

2011-10-07 所属栏目:标准英语|常速英语下载|在线收听

A new study finds that the use of a hormonal contraceptive popular with women in eastern and southern Africa doubles their risk of becoming infected with HIV. And when it is used by HIV-infected women

2011-10-06 所属栏目:标准英语|常速英语下载|在线收听

In times of drought, parched lands yield few, if any, crops, increasing hunger among communities. As one way of boosting food security during these difficult times, scientists in Kenya and across Afri

2011-10-06 所属栏目:标准英语|常速英语下载|在线收听

Somalia’s prime minister says Tuesday’s suicide bomb attack in Mogadishu shows the increasing desperation of al-Qaida linked forces who still control large parts of the famine-wracked country. The

2011-10-06 所属栏目:标准英语|常速英语下载|在线收听

The magnitude 5.8 earthquake that rattled the East Coast of the United States in August caught everyone - even geologists - by surprise. But even when there's reason to think an earthquake could be a

2011-10-06 所属栏目:标准英语|常速英语下载|在线收听

None other than show business legend Dolly Parton once said that there were just three real female singers: Barbra Streisand, Linda Ronstadt, and Connie Smith. "The rest of us," she said, "are only pr

2011-10-05 所属栏目:标准英语|常速英语下载|在线收听

Getting access to adequate health care can be difficult in many parts of rural Indonesia, a necessity that often involves long journeys to overcrowded clinics. And once there, many patients often find

2011-10-05 所属栏目:标准英语|常速英语下载|在线收听

The World Health Organization estimates that 346 million people globally suffer from diabetes. Most of them live in low- and middle-income countries. The WHO projects that if current trends continue,

2011-10-05 所属栏目:标准英语|常速英语下载|在线收听

Some of the most polluted places in the world are ports, resulting in health problems that some experts say can lead not only to respiratory problems, but cancer.In the United States, the western stat

2011-10-04 所属栏目:标准英语|常速英语下载|在线收听

Many Americans are getting what are known as “pink slips” these days.They’re losing their jobs because of plant closings, the move of operations overseas, downsizing of companies’ workforces, or s

2011-10-04 所属栏目:标准英语|常速英语下载|在线收听

Scientists investigating a popular herbal treatment for enlarged prostate, saw palmetto, have concluded it is no more effective than a placebo.That conclusion comes from a study which included hundred

2011-10-04 所属栏目:标准英语|常速英语下载|在线收听

Ten years ago, Luke Bryan moved to Nashville to pursue a career in Country music. With the recent release of his third album, some critics believe Luke is destined to become the genre’s next big sta

2011-10-04 所属栏目:标准英语|常速英语下载|在线收听

America's newest poet laureate is Detroit native Philip Levine, 83, who is known for capturing the poignancy and grit of a now-vanished industrial America, and the overall struggle of the working cla

2011-10-04 所属栏目:标准英语|常速英语下载|在线收听

The neighborhood in northwest Washington D.C. looks like a typical American townhouse development, but Takoma Village Cohousing is anything but ordinary.

The privately-owned units cluster around a

2011-10-04 所属栏目:标准英语|常速英语下载|在线收听

The U.S. and other NATO forces on October 7, 2001 attacked al-Qaida extremists and their Taliban allies in Afghanistan, less than a month after the September 11 terrorist attacks. That military operat

2011-10-03 所属栏目:标准英语|常速英语下载|在线收听

The Africa Center in London has been a home away from home for the African diaspora for decades -- a meeting place for high profile and historical events. But the Center in Covent Garden is now causi

2011-10-03 所属栏目:标准英语|常速英语下载|在线收听

Many small businesses in the United States are struggling these days because of the economic downturn, changes in technology, and competition from large national chains.In the small town of Teaneck, N

2011-10-02 所属栏目:标准英语|常速英语下载|在线收听

Radical cleric and wanted terrorist Anwar al-Awlaki was killed Friday in Yemen in what news reports say was a coordinated air strike by the U.S. Central Intelligence Agency. Al-Awlaki was an American

2011-10-02 所属栏目:标准英语|常速英语下载|在线收听

Millions of containers from around the world enter ports throughout the United States every year. The threat to U.S. national security at these ports have grown in the last decade and so has security

2011-10-01 所属栏目:标准英语|常速英语下载|在线收听

The death of a senior al-Qaida figure by a U.S. air strike in Yemen leaves a gap in the senior ranks of what counterterrorism officials say is the most lethal of the group's franchises, Al-Qaida in t