发表于:2018-12-08 / 阅读(156) / 评论(0) 分类 赖世雄中级美国英语

By Nancy Steinbach Broadcast: October 1, 2003 This is Faith Lapidus with the VOA Special English Health Report. Scientists in Iceland say they have identified the first gene linked to common forms of

发表于:2018-12-15 / 阅读(64) / 评论(0) 分类 VOA2003(下)-环境与健康

Charles Jackson worries that his family will be saddened when Alzheimer's begins to take its toll on him This is Dave Isay, creator of StoryCorps, the project that records the stories of everyday Americans. StoryCorps airs each Friday on NPR's morni

发表于:2018-12-19 / 阅读(30) / 评论(0) 分类 2007年NPR美国国家公共电台

By Melinda Smith Washington, DC 14 September 2006 watch Alzheimer report Researchers say it may soon be possible to scientifically diagnose Alzheimer's disease, without having to wait for autopsy confirmation after the patient has died. Clinical tri

发表于:2019-01-06 / 阅读(90) / 评论(0) 分类 2006年VOA标准英语(九月)

ARI SHAPIRO, HOST: For the first time, scientists have altered the DNA in human embryos to make a fundamental discovery about early human development. Scientists say this proves that modifying genes and human embryos can reveal powerful insights into

发表于:2019-01-16 / 阅读(42) / 评论(0) 分类 2017年NPR美国国家公共电台9月

为何人类爱吃肉 对多数人类来说,肉的味道非常美妙。众多的美食中,为何我们对它情有独钟呢? It is no less remarkable for people today, even those of us whose tastes run more to sirloin. Because if you look at wh

发表于:2019-02-18 / 阅读(78) / 评论(0) 分类 阅读空间