062慢速英语字幕.docVIP

恅晡媼寀ㄩ 68 磁燴腔窊妘睿巠絞腔傯褻夔劂蔥腴昒續瓷楷瓷薹˙貌呏嗨嘟盺眵攷婖輿 SCIENCE IN THE NEWS - September 4, 2001: DigestStaff VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Science in the News, a VOA Special English program about recent developments in science. Today, we tell about how diet and exercise can reduce a persons chance of developing diabetes. We tell about a World Health Organization campaign against leprosy. And we tell about a project to copy some trees at George Washingtons home. ((THEME)) VOICE ONE: An American study has found that (1)diet changes and (2)exercise can (3)delay the development of (4)diabetes in people who are at risk for the disease. The study found that eating less fat and doing simple exercises could lower the risk of diabetes by fifty-eight percent. It also showed that a diabetes drug widely used by Americans also reduced the risk, but not as much. Diet and exercise were so effective that the researchers ended the study one year early because it had answered the main research questions. Smaller studies in China and (5)Finland have shown that diet and exercise can delay diabetes in people at risk. However, the American study is said to be the first to show these effects among people in several (6)racial or (7)ethnic groups. VOICE TWO: A person has diabetes when high levels of the sugar called (8)glucose are found in the blood. Glucose levels increase when the body lacks or cannot use the (9)hormone (10)insulin. The (11)pancreas is the organ of the body that produces insulin. The insulin helps glucose enter cells all over the body so that it can be used as fuel. Without insulin, glucose levels increase. This results in the disease diabetes. In the United States, diabetes affects more than sixteen-million people. It is the leading cause of (12)kidney failure and new cases of blindness among (13)adults. It also is a major cause of heart disease and (14)stroke. About fifteen-million Americans have type two diabetes or adult onset di