Heavy air on this Moment of Science. Here's an oxiny question: does air weigh anything? At first it might seem preplexing, on the one hand, air just seems floating, I mean, to say something is as light as air is to say its weighlessness, is isn't? Bu

发表于:2018-12-27 / 阅读(46) / 评论(0) 分类 英语时差8,16

I will finish my middle school life soon, before I graduate, I need to take part in a very important test and it will decide which high school I will be in. I am so nervous now, I want to do my best and go to the ideal high school. My mother told me

发表于:2019-01-06 / 阅读(62) / 评论(0) 分类 英语作文

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Shirley Griffith. VOICE TWO: A NOAA satellite image of Hurricane Katrina, taken on August 29, 2005 And Im Steve Ember. Powerful storms are called hurricanes when they form over the At

发表于:2019-01-11 / 阅读(39) / 评论(0) 分类 VOA慢速英语2007年(九)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Bob Doughty. VOICE TWO: And Im Barbara Klein. Our subject today: severe ocean storms. (MUSIC) VOICE ONE: September is usually the worst month for hurricanes in the Atlantic Ocean. At

发表于:2019-01-11 / 阅读(49) / 评论(0) 分类 VOA慢速英语2008(十)月

A workboat pulls boom into place alongside the Pacific Responder oil skimming vessel in the Gulf of Mexico near the coast of Louisiana, 14 Jul 2010 BP has restarted a pressure test on a leaking oil well in the Gulf of Mexico to prepare for an effort

发表于:2019-01-13 / 阅读(45) / 评论(0) 分类 VOA标准英语2010年(七)月

A: Have you been feeling OK lately? B: My coach wants you to check my blood pressure. A: Has anyone ever told you that you had high blood pressure? B: I dont have any symptoms of high blood pressure. A: People with high blood pressure seldom know the

发表于:2019-01-15 / 阅读(59) / 评论(0) 分类 英语情景对话-健康