na. 空中屈折
[网络] 天文折射；大气折射；天文蒙气差

Beckham Unwrapped

Beckham Unwrapped You know you've made it when you're 1)baited by world leaders, copied by 2)doyens of fashion and adored by fans worldwide, throw in a celebrity romance, marriage and children, the dr

发表于:2018-11-28 / 阅读(265) / 评论(0)

疯狂英语2004年

VOA标准英语2012--Rare Astronomical Event to Occur June 5-6

Rare Astronomical Event to Occur June 5-6 Skywatchers on all seven continents will get a chance to witness an astronomical rarity on June 5 or 6, the transit of the planet Venus. It is likely the last time anyone alive today will have a chance to vie

发表于:2018-12-16 / 阅读(130) / 评论(0)

VOA标准英语2012年(六月)

SSS 2011-09-23

This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? Out in space, NASA's Kepler mission keeps watch on more than 150,000 stars. The telescope's job is to see if those stars dim ever so slightlybecause of the presence of an

发表于:2018-12-24 / 阅读(162) / 评论(0)

Scientific American(九)月

学个词 Learn a Word-VOA英语教学 3197 astronomical

今天我们要学的词是 astronomical. astronomical 的意思是高昂的、天文数字的。 In Silicon Valley, housing prices and rents are astronomical, and the rates a corporate housing provider can charge are sky-high as well. 硅谷的房价和

发表于:2018-12-30 / 阅读(110) / 评论(0)

英语单词荟萃

英语听力文摘 English Digest 531、为何天空不是统一的蓝色？

The Blurry World Underwater When you open your eyes underwater, things look blurry, but with goggles, everything looks perfectly clear. Why cant we landlubbers focus underwater without goggles? First, we need to explore how our eyes focus when were h

发表于:2018-12-31 / 阅读(158) / 评论(0)

英语听力文摘 English Digest

让我们来一次虚拟的太空行走吧(有声)

1983年４月７日，美国＂挑战者＂号航天飞机在太空飞行期间，两名航天员在太空自由自在地飘飞行走了3个多小时．这是人类首次不系绳索自由地在太空行走．航天员为何能在太空行走呢？原

发表于:2019-01-02 / 阅读(148) / 评论(0)

60秒科学

VOA慢速英语20060826a

IN THE NEWS - Pluto and Dark Matter Both Star in a Busy Week for AstronomersBy Brianna Blake Broadcast: Saturday, August 26, 2006 This is IN THE NEWS in VOA Special English. Pluto compared to other so

发表于:2019-01-02 / 阅读(126) / 评论(0)

2006年慢速英语（八）月

Seeing an Eclipse Is Good! Being Eclipsed Is Not

Hello and welcome to Words and Their Stories from VOA Learning English. On this program we explore the origin and usage of common expressions in American English. We always give examples or dialogues using the expressions. Sometimes we even use the w

发表于:2019-01-02 / 阅读(137) / 评论(0)

2017年VOA慢速英语(八)月

SSS 2009-01-05

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? We residents of the Milky Way should have a little extra skip in our step today. Turns out our home galaxy is much bigger and moving a lot faster than we previously th

发表于:2019-01-08 / 阅读(174) / 评论(0)

Scientific American(一)月

SSS 2010-05-13

Twelve men have walked on the moon. And now you can, too. Virtually, that is. Because planetary researchers are enlisting everyday citizens in scientific exploration of the surface of the moon. At the Web site moonzoo.org, you can check out new high-

发表于:2019-01-08 / 阅读(144) / 评论(0)

Scientific American(五)月

科学家发现8个或有生命存在的行星

Eight new planets have been discovered in the 'Goldilocks' zone of their stars, orbiting at a distance where oceans and life could exist. 科学家已经发现了8个新的可能有海洋和生命的行星。它们位于这些行星的恒星的适居带

发表于:2019-01-08 / 阅读(121) / 评论(0)

英语新闻

科学家称发现太阳系新行星

Is There a Ninth Planet in Our Solar System? 科学家称发现太阳系新行星 Scientists said they have found evidence of a giant planet far out in our solar system. In a statement, the California Institute of Technology Caltech -- said this plan

发表于:2019-01-12 / 阅读(292) / 评论(0)

2016年VOA慢速英语(一)月

趣味青春英语电台第171期:Out and about

Idiom: Out and about 溜达，转一转 Hit the book: Obscure Attempt Commonplace Sheer Sustain Astronomical

发表于:2019-01-22 / 阅读(178) / 评论(0)

趣味青春英语

经济学人: 海洋生物的隐身斗篷 (2)

The deep ocean has other sources of light than astronomical bodies, though. 除了天体，深海还有其他光源。 Three-quarters of marine organisms off the coast of California produce their own, and that is probably true in most oceans, 加利福

发表于:2019-01-26 / 阅读(170) / 评论(0)

经济学人科技系列

让我们冷静的看看玉林狗肉节

Tens of thousands of dogs are set to be killed and eaten at this year's Yulin Dog Meat Festival held in southern China in June 2016. Despite protests to boycott the annual event by human rights activists, up to 15,000 animals are expected to be slaug

发表于:2019-02-02 / 阅读(146) / 评论(0)

英语新闻

科学家宣布再次探测到引力波

Four months after the historic first-ever detection of gravitational waves, scientists said they have directly detected another gravitational wave washing over the Earth. 在引力波历史性的首次检测到四个月之后，科学家们近日表示

发表于:2019-02-02 / 阅读(162) / 评论(0)

英语新闻

日全食、春分、超级月亮一次看个够

Friday, March 20, will see an astronomical triple play when a rare total solar eclipse occurs on the same day as the vernal equinox, and a supermoon makes an appearance.本周五（3月20日）将上演天文现象三合一：春分当天发生日全食

发表于:2019-02-05 / 阅读(199) / 评论(0)

阅读空间

全球生活成本最高的20个城市

The company published this map showing the cost of living in nearly 500 cities around the world. Red dots indicate expensive cities and green less expensive. 这张显示全球500座城市生活成本的地图，红点表示昂贵，绿色表示便宜。

发表于:2019-02-08 / 阅读(149) / 评论(0)

英语新闻

经济学人333:心理太不公平啦!

Science and technology 科学技术 Psychology 心理 Snot fair! 太不公平啦！ Exactly when is something perceived as not fair? 究竟在什么情况下人们会觉得不公平？ AS THE bankster phenomenon has so eloquently illustrated, Homo sa

发表于:2019-02-16 / 阅读(124) / 评论(0)

经济学人科技系列

经济学人:货币的半衰期 (2)

To make the numbers easier to grasp, they have provided an alternative way to express them. 为了让大家更好理解这些数据，他们提供了另一种表述方式。 They calculate how long it would take for prices to double, if inflation per

发表于:2019-02-17 / 阅读(139) / 评论(0)

经济学人财经系列

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学英语单词

Amphicarpaea trisperma

anti knock

assurely

autonomy of nationality

auxiliary vacuum chamber