2011-08-23 所属栏目:英语听力材料

Before new drugs are approved for use, they go through a multi-step approval procedure. In recent years, the process has become more globalized, but a new study suggests that the results of clinical t

2011-08-23 所属栏目:英语听力材料

The search for a vaccine against HIV/AIDS has been disappointing, in part because the virus cleverly changes to elude the antibodies of the human immune system. Now, scientists have identified antibod

2011-08-23 所属栏目:英语听力材料

Most large animals have to chew food extensively and form it into a mushy ball that’s easy to swallow. Cooking makes a huge difference—it softens the food and dramatically reduces eating time. Resea

2011-08-22 所属栏目:英语听力材料

Global Stocks ended the week lower as fresh worries over a possible U.S. recession and Europe's debt crisis roiled markets anew. The inability of political leaders on both continents to deal with the

2011-08-22 所属栏目:英语听力材料

We will begin with that death threat against David Letterman made on an al-Qaeda website. Jonathan Dienst from WNBC, the NBC station here in New York, is here with the details. Jonathan, good to see y

2011-08-21 所属栏目:英语听力材料

MELISSA BLOCK, host: This is ALL THINGS CONSIDERED from NPR News. I'm Melissa Block.ROBERT SIEGEL, host: And I'm Robert Siegel. Summertime means outdoor concerts, and it also means summer storms. An

2011-08-21 所属栏目:英语听力材料

Egypt says it will withdraw its ambassador from Israel following Israeli military action that killed three members of Egypt's security forces along the two nations' border. Israel says its military

2011-08-21 所属栏目:英语听力材料

Drought, war, political instability, climate change. These are all factors driving up the price of food. The latest Food Price Watch report from the World Bank says global food prices in July were 33

2011-08-20 所属栏目:英语听力材料

DAVID GREENE, host: Oklahoma is only one of several states experiencing drought conditions. Water is being recycled in many places for use in parks and gardens. But there's one type of water reuse th

2011-08-20 所属栏目:英语听力材料

The site of a Japanese internment camp during World War II has been transformed into the Heart Mountain Interpretive Learning Center in Wyoming. The grand opening is this weekend.During World World II

2011-08-20 所属栏目:英语听力材料

A group of university students and alumni has returned to the United States after three weeks in Kenya, where they were part of a cultural exchange program which aims to transform lives through music.

2011-08-20 所属栏目:英语听力材料

At this Cobb County church, they are learning gifts sometimes come in thought-provoking packages. To win not one, but three lottery tickets and to hand them all over, and just give them away. It feels

2011-08-20 所属栏目:英语听力材料

We think the solution is our next big insight. It's become a big event each time Apple unveils new products. And those products have now catapulted Apple to the ranks of most valuable company, even s

2011-08-19 所属栏目:英语听力材料

ALLISON KEYES, host: I'm Allison Keyes and this is TELL ME MORE from NPR News. Michel Martin is away. Coming up, a new website showcases African-American perspectives on news, opinion and culture. Mo

2011-08-19 所属栏目:英语听力材料

A new initiative has been launched to provide more and better treatment to children infected with HIV. Organizers say pediatric AIDS in developing countries should be considered a neglected disease be

2011-08-19 所属栏目:英语听力材料

A former high-level U.S. diplomat, who was posted in Japan for many years, is speaking out about Tokyo's initial response to the Fukushima nuclear crisis.He is also revealing the level of concern tha

2011-08-19 所属栏目:英语听力材料

The traveling salesman problem is a favorite math conundrum: if a salesman has to visit a bunch of cities, how do you get him to all of them once via the shortest possible route. But the traveling sal

2011-08-18 所属栏目:英语听力材料

In the past, the Chinese population was slimmer and healthier. These days, fast food chains have moved in and greasy American food and lack of exercise has led to an ever-growing obesity epidemic in C

2011-08-18 所属栏目:英语听力材料

US Vice President Joe Biden has arrived in Beijing for talks with China's top leaders, as concerns about the US economy and the country's ability to manage its debt and deficits hang over policy mak

2011-08-18 所属栏目:英语听力材料

STEVE INSKEEP, host: Now, Spain is in some trouble, even though it has invested heavily in recent years in green jobs, specifically in the solar sector. That is something that other countries have con

2011-08-18 所属栏目:英语听力材料

Researchers say powerful antibodies may hold clues to developing an effective AIDS vaccine. The antibodies were isolated from individuals already infected with HIV.Dr. Wayne Koff says the goal is to f

2011-08-18 所属栏目:英语听力材料

Experts say there was plenty of warning that the Horn of Africa was likely to experience severe drought. Nevertheless, millions of people are now at risk.Scientific experts have been saying for years

2011-08-18 所属栏目:英语听力材料

Minnesota is home to the largest Somali population in the United States and, as drought and famine take a devastating toll on their homeland, Somali immigrants are taking action to help victims back h

2011-08-18 所属栏目:英语听力材料

When a healthy rat smells a cat, it flees. But rats infected with the Toxoplasma brain parasite actually follow cat odors, often presumably to their doom, red in tooth and claw. Now researchers have f

2011-08-17 所属栏目:英语听力材料

我们生命的精神支柱是什么呢？除了物质环境因素外，世界和人类的本质更多的是取决于我们个人的视野、理解和行为。也就是说，唯有出色的人才能创造出美好的世界。Spiritual Handholds on Life by Dr. Fred Dow Fagg,