Then a strange thing happened. 然后一件怪事发生了。 The house whirled around two or three times and rose slowly through the air. 这屋子旋转了几次,慢慢地升上空中。 Dorothy felt as if she were going up in a balloon. 多萝茜觉

发表于:2018-12-30 / 阅读(28) / 评论(0) 分类 绿野仙踪.The.Wizard.Of.Oz

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Think about flying and you no doubt think about air--the wind in your face, the wind at your back, the wind beneath your wings. Now physicists note that li

发表于:2019-01-08 / 阅读(67) / 评论(0) 分类 Scientific American(十二)月

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

Northland has had heavy rain and strong winds for the past 24 hours with flooding in some areas. About 200mm of rain fell last night and it is still raining. Some farm land is flooded. Some roads and schools are closed and the police said that people

发表于:2019-02-17 / 阅读(53) / 评论(0) 分类 新西兰英语

What we do know is that because heat from the Sun is unevenly distributed, differences in air pressure arise on the planet. Air can't abide this, so it rushes around trying to equalize things everywhere. Wind is simply the air's way of trying to keep

发表于:2019-02-25 / 阅读(45) / 评论(0) 分类 万物简史