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-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 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

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--Tokyo Prepares As Scientists Predict Big Quake

Tokyo Prepares As Scientists Predict Big Quake Earthquake alarms ring at Tokyo's Metropolitan Government headquarters, sending workers running for cover. Across the city, workers in another tower block react to a fire alert. It is part of a city-wide

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2011--Scientists Target Antibodies That Work A

Scientists Target Antibodies That Work Against Many HIV Mutations 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 id

VOA标准英语2011--Polar Scientist Charts Melting Caused by

Polar Scientist Charts Melting Caused by Climate Change Michael Gooseff follows water to the end of the earth. The Pennsylvania State University hydrologist works in remote regions of the Arctic and Antarctic, where ice and frozen ground are thawing.

VOA标准英语2011--US Scientists Expand Scope of HIV Vaccin

US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N

VOA标准英语2011--Scientists Create Glue Inspired by Musse

Have you ever wondered how those hard-shelled mollusks known as mussels anchor themselves to rocks on lake and river bottoms? How they stick to sea walls, or resist pounding waves? Scientists at the University of Chicago have done more than come up w

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-Scientists Hoping to Beat African Disease

By Joe Bavier Dantchandou, Niger 10 April 2006 Scientists in Niger, the world's poorest country, are using a new high-tech satellite transmission system to help with rural health care. The network of