听力课堂

内容介绍：This is the VOA SpecialEnglish Science Report.American researchers say they have developed the first drug thatcan effectively treat adults suffering a viral respiratory infectioncalled the common cold.A cold is an infection of the breathing system. A... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.Some people feel sad or depressed during the winter months innorthern areas of the world. They may have trouble eating orsleeping. They suffer from a condition known as Seasonal AffectiveDisorder, or S-A-... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.British scientists may have discovered the reason why red wineappears to protect the heart. They say natural chemicals found inred wine appear to protect against blocked blood passages. Thechemical substa... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.Sixty-seven-million people around the world cannot see becausethey suffer from the disease glaucoma.The disease prevents the clear fluid in the eye from flowingnormally. This causes increased fluid pressu... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.Winter weather has arrived in northern areas of the world. Inmuch of the United States, winter means the return of snow. Lastmonth, during a severe storm, about two meters of snow fell on thecity of Buffa... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.Scientists say they have developed a camera that can helpidentify when a person is not telling the truth. The new camerameasures the heat released by a person's face.Lyingeyes (bottom) give off increased ... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.A new study suggests that a protein that protects animals fromcancer early in life may later cause extreme aging. The protein iscalled p-fifty-three.Scientists say p-fifty-three also helps prevent cancer ... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.The Italian island of Sardinia recently lost its oldest citizen.Family members say Antonio Todde died in his sleep early this month.Mister Todde was one-hundred-twelve years old. He was less thanthree wee... >>详细内容

内容介绍：This is Sarah Long withthe VOA Special English Science Report.Scientists have reported the first long-term study of childrenwho were born earlier and smaller than normal. The researchersmeasured the progress of these premature babies compared with no... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.American space agency astronauts will soon replace much of theequipment in the Hubble Space Telescope. The new equipment will helpthe Hubble produce much more information than it can today.NASA plans to l... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.A leading expert on ancient mountain cultures has a theory abouta man who died more than five-thousand years ago. The man's body wasfound in a piece of ice high in the Alps Mountains in northern Italyin N... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.The United States Secretary of Energy, Spencer Abraham, hasannounced a program to develop a new kind of engine to power cars inthe future. Mister Abraham calls the new program the "Freedom Car."The cars w... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.A new report examines the problem of tooth and gum disease in theUnited States. It found that many Americans are not doing enough tocare for their teeth. The report says the biggest problems are thelack o... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.An American archeologist has a new theory about an ancient statuefound in Greece. Keith DeVries of the University of Pennsylvania inPhiladelphia says the statue may have once belonged to King Midas.He bel... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.Scientists have expressed much interest in the development of ahuge new iceberg in Antarctica. This huge ice island formed when apiece broke off a moving mass of ice called the Pine Island Glacier.The new... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.Two new American studies are adding to our understanding of womenand their sense of smell.Graphic ImageThe first study showed that womenappear to like the smell of men whose genes are similar to thewomen'... >>详细内容

内容介绍：This is the VOA SpecialEnglish SCIENCE REPORT.A new study examines drug use by young people in the UnitedStates.The study found that cigarette smoking among American teenagersdropped during the past year. The drop continues a general decreasein teena... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.American medical researchers say they have developed a simpleblood test that can tell if a woman has ovarian cancer. Cancer ofthe ovaries is one of the most difficult cancers to find and cure.That is beca... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.American scientists have found that some birds are moreintelligent than experts had believed. The scientists say birds haveabilities that involve communication and different kinds of memory.In some unusua... >>详细内容

内容介绍：This is the VOA SpecialEnglish Science Report.Medical researchers say a new study shows a link between themental condition Alzheimer's disease and high levels of thesubstance homocysteine (ho-mo-SIS-teen) in the blood.Graphic ImageHomocysteine is an ... >>详细内容