Very small pieces of plastic, called microfibers, are polluting rivers and oceans. The source of these microfibers may surprise you: your clothes. Clothes worn for outdoor activities and exercise are often made of synthetic material, like polyester o

发表于:2019-01-02 / 阅读(42) / 评论(0) 分类 2017年VOA慢速英语(四)月

As Brazil geared up for the World Cup, 230 miles above Earth, astronauts had their own microgravity kick-about. 巴西世界杯开幕之际,宇航员们在几乎没有重力的230英里高空踢起了足球。 U.S. astronauts Reid Wiseman and Steve

发表于:2019-01-09 / 阅读(48) / 评论(0) 分类 英语新闻

Worms Get Ready to Fly in Space 蠕虫准备在太空中飞行 Humans are well-equipped for life on Earth. But in space, it is a different story. Low or zero gravity changes how the blood flows and causes motion sickness, muscle loss and tiredness. W

发表于:2019-01-12 / 阅读(27) / 评论(0) 分类 2015年VOA慢速英语(三)月

Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system

发表于:2019-01-14 / 阅读(34) / 评论(0) 分类 VOA标准英语2013年(四月)

China successfully launched its first microgravity satellite, the SJ-10, at the Jiuquan Satellite Launch Center in Gansu province Wednesday at 1:38 am. 周三凌晨1时38分,我国首颗微重力科学实验卫星实践十号在甘肃酒泉卫星发射

发表于:2019-02-03 / 阅读(33) / 评论(0) 分类 英语新闻

BEIJING, Jan. 28 (Xinhua) -- China lacks quality environment assessment agencies, according to a government report issued on Monday. The Ministry of Environmental Protection (MEP) publicized a report after a three-year survey into the country's envir

发表于:2019-02-07 / 阅读(70) / 评论(0) 分类 英语新闻