双极黑子

When the sunspots disappeared something on the sun changed 太阳黑子消失时,太阳表面的变化导致 that cooled the Earth down. 地球温度降低 But it wasn't that the solar output changed. 改变的并不是太阳的输出量 No matter

发表于:2018-12-07 / 阅读(154) / 评论(0) 分类 太阳科普

But the sun is much more than a giant lightbulb. 但是太阳不只是个巨大的灯泡 There are other forces at work in the sun. 其内部还有其他的力量正在运作 Forces that change over minutes and over years. 这些力量可能在数分钟

发表于:2018-12-07 / 阅读(135) / 评论(0) 分类 太阳科普

RACHEL MARTIN, HOST: We try not to obsess about this too much, but we really do get to work very early around here. We don't get a whole lot of sunlight, especially in the winter months. So when you look around the newsroom, you see these special lam

发表于:2018-12-17 / 阅读(116) / 评论(0) 分类 2017年NPR美国国家公共电台11月

Next, the U.S. Army is on a mission to recruit 80,000 new soldiers by next year. It's easier said than done. Many people don't meet the military's requirements to join. Weight, age, drug use, medical conditions, criminal records, they can all keep so

发表于:2018-12-20 / 阅读(117) / 评论(0) 分类 CNN美国有线新闻2017年12月

Sunspots 太阳黑子 Is every part of the sun equally hot? 太阳的各个部分都一样热吗? No, they aren't. Some parts are colder than other parts. 不是的。有些地方比其他地方冷。 How do we know that fact? 我们是如何知道这

发表于:2019-01-10 / 阅读(140) / 评论(0) 分类 与美国小学生一起学英文第10册

Voice 1 Hello. Im Rachel Hobson. Voice 2 And Im Mike Procter. 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. Voice 3 I was in the tent

发表于:2019-02-14 / 阅读(125) / 评论(0) 分类 环球英语 Spotlight
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