古生物

How Neanderthals Fought Disease Every year people are encouraged to get their annual flu shots. Signs are posted at drug stores and clinics. Get your shots here. Modern preventive medicine has saved millions of lives. But you may be surprised to hear

发表于:2018-12-31 / 阅读(31) / 评论(0) 分类 英语听力文摘 English Digest

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium. The mosquitoes do have immune sy

发表于:2019-01-08 / 阅读(52) / 评论(0) 分类 Scientific American(三)月

This Superbug is Too Strong for Antibiotics 美国发现超级细菌 抗生素均无效! Doctors have identified a powerful bacteria that cannot be killed with antibiotics. 医生已鉴定出一种无法被抗生素杀死的强大细菌。 The bacter

发表于:2019-01-12 / 阅读(29) / 评论(0) 分类 2016年VOA慢速英语(六)月

Scientists say they have discovered a new gene among bacteria that are highly resistant to even the most powerful antibiotics. Experts say the superbug, originally found in India and other parts of South Asia, is showing up in patients in Europe and

发表于:2019-01-13 / 阅读(41) / 评论(0) 分类 VOA标准英语2010年(八)月

主餐一道:泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握

发表于:2019-01-22 / 阅读(28) / 评论(0) 分类 NPR边听边练

Indian health officials have rejected a new medical study warning of widespread drug-resistant bacteria in the country's capital. But the co-author of the study says Delhi is in denial, and warns the bacteria can spread easily around the world, possi

发表于:2019-02-18 / 阅读(60) / 评论(0) 分类 英语新闻