新东方现代文背诵篇章 Scientific Theories

In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produc

2007年VOA标准英语-Glacier National Park Rapidly Losing Its Glacie

By Jeff Swicord Glacier National Park, Montana 03 September 2007 National parks in the United States are revered for their natural beauty and wildlife. They are fragile ecosystems that are cared for and preserved for future generations. Because of th

2007年VOA标准英语-Scientists Study Old Virus to Predict Impact of

By Jessica Berman Washington 17 January 2007 If or when it strikes, the avian flu pandemic would likely kill victims by switching on an uncontrolled immune system response. That's according to researchers, who studied a 90-year-old flu virus in the h

VOA慢速英语2009-Health Report - Scientists Take Step in Search o

This is the VOA Special English Health Report. Evidence is increasing that common influenza viruses are becoming resistant to the main drug used to treat them. The drug is oseltamivir, also known as Tamiflu. The most common seasonal flu virus found

VOA慢速英语2009-SCIENCE IN THE NEWS - Scientists Say Arctic Ice

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Doug Johnson. VOICE TWO: And I'm Faith Lapidus. This week, we will tell about ice loss in the Arctic Sea. We also will tell about a campaign to improve treatment of snakebites. And w

2006年VOA标准英语-Scientists Decode Honey Bee Genome

By Jessica Berman Washington 26 October 2006 An international consortium of scientists has completed work on deciphering the genome of the honey bee. They hope the work will lead to a better understanding of one of the earth's most social and ecolog

2006年VOA标准英语-Scientists Say Better Diagnostics for Bird Flu

By Lisa Schlein Geneva 28 September 2006 Leading avian influenza scientists from around the world say more research is needed to understand the H5N1 bird flu virus to be able to effectively diagnose and treat the disease. That's the conclusion of sc

2006年VOA标准英语-Scientists Study New Technique to Vaccinat

By David McAlary Washington 23 May 2006 Chickens at US farm Scientists have developed an efficient, cheap way to vaccinate birds against avian influenza and possibly prevent the spread of the deadly H

2006年VOA标准英语-Scientists Find Evidence Universe Inflated

By David McAlary Washington 17 March 2006 Scientists report evidence that the universe was born in less than the blink of an eye, expanding instantly from sub-microscopic size to astronomical proporti

VOA标准英语2012--Scientists Developing Salt-Tolerant Rice

Scientists Developing Salt-Tolerant Rice Scientists are developing a salt-resistant variety of rice. The move was prompted, in part, by last year's Japan tsunami, which flooded some 20,000 hectares of rice paddies. The rice varieties Japanese farmers

VOA标准英语2012--Scientists Seek HIV Vaccine Using Monkey Model

Scientists Seek HIV Vaccine Using Monkey Model Traditional vaccine methods have been unsuccessful in preventing infection by HIV, the virus that causes AIDS. New techniques are being studied to boost antibodies or other parts of the immune system. Bu

VOA标准英语2012--Dwindling US Space Budget Worries Scientist

Dwindling US Space Budget Worries Scientist It's a trend that troubles astrophysicist Neil deGrasse Tyson, an outspoken advocate for space research and exploration. The director of the American Museum of Natural Historys Rose Center for Earth and Spa

VOA标准英语2011--Fermilab Scientists Optimistic About Finding Higgs Boson Particle

Fermilab Scientists Optimistic About Finding Higgs Boson Particle Scientists at the CERN laboratory in Geneva, Switzerland say they are encouraged by new data suggesting their Large Hadron Collider, the world's most powerful atom-smasher, is one step

VOA标准英语2011--Scientists Gather for AIDS Vaccine 2011

Scientists Gather for AIDS Vaccine 2011 The largest conference on AIDS vaccine development is being held in Bangkok, Thailand FROM September 12th to the 15th. Researchers will discuss how to build on recent advances in a time of tight budgets. Organi

VOA标准英语2011--Scientists Closer to Developing Meningit

Scientists Closer to Developing Meningitis Vaccine Scientists may be on track to develop a vaccine for the most common strain of meningitis, which has so far resisted an effective vaccine. Meningitis is a serious disease caused by an inflammation of

VOA标准英语2011--Species Loss Compromises Earth’s Vital

Species Loss Compromises Earths Vital Systems Scientists have long thought that diverse ecosystems like forests, lakes and streams are especially good at removing pollutants that human activities put into the environment. A new study in the journal N

VOA标准英语2012--Scientists Recreate Ancient Mating Call from Dinosaur Age

Scientists Recreate Ancient Mating Call from Dinosaur Age It was probably a noisy world, with thousands of other animal sounds, rushing streams and the rustle of giant ferns and coniferous trees. Fernando Montealegre studies how insects sing and hear

VOA标准英语2013--Scientists Search for Those Long Missing

Scientists Search for Those Long Missing Researchers are developing new techniques to find hidden graves. They say it would help locate the remains of a lone murder victim or the mass graves of victims of war. The research has been presented at the M

2006年VOA标准英语-Scientists Working to Save Chesapeake Bay

By Jeff Swicord Sarah Creek, Maryland 07 June 2006 watch Oyster report Chespeake Bay The Chesapeake Bay, on the Atlantic coast, is the largest estuary in the United States. It is famous for its seafoo

2006年VOA标准英语-Israel Reviews Policies Towards Palestinia

By Jim Teeple Jerusalem 15 February 2006 Israel's acting prime minister has ruled out talks with Palestinians unless Palestinian President Mahmoud Abbas disarms members of the Islamic militant group H