This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(106) / 评论(0) 分类 Scientific American(四)月

Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the

发表于:2019-01-13 / 阅读(114) / 评论(0) 分类 VOA标准英语2012年(六月)

Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont

发表于:2019-02-02 / 阅读(52) / 评论(0) 分类 VOA标准英语2010年(二月)

When Helen Clark left Parliament, the Labour Party announced there would be a by-election in Mt Albert to find a replacement MP. Russell Norman, co-leader of the Green Party, and John Boscawen of the ACT Party both want to be the MP for Mt Albert. Th

发表于:2019-02-05 / 阅读(40) / 评论(0) 分类 新西兰英语

Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re

发表于:2019-02-21 / 阅读(64) / 评论(0) 分类 环球英语 Spotlight

今天我们要学的词是commemorate。Commemorate动词,意思是庆祝、纪念。 U.S. President Donald Trump said it is so foolish for American cities to be removing statues commemorating Confederate generals and soldiers who fought on the lo

发表于:2019-02-24 / 阅读(92) / 评论(0) 分类 英语单词荟萃