磁太阳日变

科学家改进空间天气预报准确性

Scientists Improve Space Weather Forecast Accuracy 科学家改进空间天气预报准确性 At one time, scientists thought the space between Earth and Sun was a vacuum . But we now know that the su

发表于:2018-11-29 / 阅读(208) / 评论(0)

VOA2005（下）--环境科学探索

语言小贴士:In Two Minds

1. If you are in two minds, this means: a) you can't decide b) you have made a decision c) you have a headache 2. Nina can't decide between going out for a walk and what? Today on Language Snacks we take a look at the expression in two minds. Let's

发表于:2018-12-07 / 阅读(313) / 评论(0)

语言小点心

太阳科普第15期

The key difference of course is that a sunspot's 最关键的不同点在于太阳黑子 an awful lot bigger and so the total energy, 大得多，所以太阳磁场内 or the amount of energy in the magnetic field 所含的总能量大得惊人 on th

发表于:2018-12-07 / 阅读(226) / 评论(0)

太阳科普

太阳科普第14期

It sits a million miles away from the Earth 它位于距地球一百万里处的 at the Lagrangian point 拉格朗日点 where the gravitational pull from the Earth and the sun is equal. 此处地球和太阳的引力相等 Fixed in space it has an u

发表于:2018-12-07 / 阅读(172) / 评论(0)

太阳科普

SSS 2008-08-26

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(173) / 评论(0)

Scientific American(八)月

第74期: kneel, lap, magnetic, nasty, zero

说一口流利的英语，从简单的单词开始。听听，读读，背背，今天你的词汇量又增加了5个。单词/词义中英例句单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(221) / 评论(0)

每日攻克5词

太阳科普第16期

The auroras dancing displays of celestial light 在天空中熠熠生辉的极光 are caused by particles from the solar storm smashing 是太阳风暴夹带的微粒 through the magnetic field at the poles. 撞击地球两极磁场的结果 When the

发表于:2019-01-02 / 阅读(199) / 评论(0)

太阳科普

VOA慢速英语2011--NASA’s Aquarius Satellite Will Help Sc

EXPLORATIONS - NASAs Aquarius Satellite Will Help Scientists Learn About Salt Levels in the Sea STEVE EMBER: Im Steve Ember. DOUG JOHNSON: And Im Doug Johnson with EXPLORATIONS in VOA Special English. Today we tell about an American space agency proj

发表于:2019-01-12 / 阅读(137) / 评论(0)

2011年VOA慢速英语(六)月

VOA慢速英语2015 卫星关注太阳风暴并向地球发送警报

Satellite Will Watch Sun Storms, Send Warnings to Earth 卫星关注太阳风暴并向地球发送警报 A new satellite is travelling 1.5 million kilometers over a 110-day period to enter an orbit of the sun. It is called DSCOVR -- the Deep Space Cl

发表于:2019-01-12 / 阅读(155) / 评论(0)

2015年VOA慢速英语(三)月

VOA慢速英语2014 如何抵御太阳风暴发表

How to Weather a Solar Storm 如何抵御太阳风暴发表 Powerful winds from the sun affect the earths atmosphere. These solar winds cause the beautiful aurora borealis, also known as the northern lights. These winds are also responsible for many

发表于:2019-01-12 / 阅读(189) / 评论(0)

2014年VOA慢速英语(十)月

2007年VOA标准英语-NASA Mission to Seek Polar Lights' Energy Sourc

By David McAlary Washington 18 February 2007 The U.S. space agency NASA has launched five satellites - the most ever from one rocket - to locate the source of energy in Earth's magnetic field that triggers the colorful, dancing auroras over the north

发表于:2019-01-12 / 阅读(167) / 评论(0)

2007年VOA标准英语（二月）

英语听力：自然百科地球力场 Earth's Force Field—1

The solar system is a hostile place. Earth is under attack from deadly cosmic radiation. Life here is only possible, because it's protected by the magnetosphere, an invisible force field that cocoons the planet. But new evidence reveals that this vit

发表于:2019-01-22 / 阅读(128) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—2

Radiation causes damage at the most fundamental level. It mutates the blueprint of life, DNA. Earth's magnetosphere is our crucial defense. It's so fundamental to our evolution and continued existence that the race is on to understand why it's changi

发表于:2019-01-22 / 阅读(121) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—16

During its magnetic cycle, the Sun undergoes periodic changes in activity. Every 11 years, it enters solar maximum. This 11 years cycle of solar activity has peaks where theres lots of solar storms. And right now where the sun is taking a little napp

发表于:2019-01-22 / 阅读(172) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—3

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

发表于:2019-01-22 / 阅读(140) / 评论(0)

自然百科2011年

Magnetic Bubbles Detected at Edge of Solar System

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(170) / 评论(0)

英语新闻

音乐咖啡厅:Kate Voegele - Forever and almost always

相关介绍： Kate Voegele来自美国俄亥俄州的一位年轻创作型歌手，她会唱歌、会写歌、特别擅长弹吉他、还会弹钢琴。在03和04年，她发行了自己的两张demo，制作人都是大名鼎鼎的--Michael Seifert和Marshall Altman。她于2006年10月签约加入MySpace唱片公司，之后旋即创

发表于:2019-02-08 / 阅读(353) / 评论(0)

音乐咖啡厅

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-7

Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for the satellites that roam above our heads. Fortunately, the earth is protected from this radiation by

发表于:2019-02-15 / 阅读(270) / 评论(0)

自然百科2012年

GRE试题一(2)

16. UPBRAlD : REPROACH :: (A) dote : like (B) lal: : stray (C) vex : please (D) earn : desire (E) recast : explain Directions: Each passage in this group is followed by questions based on its content.

发表于:2019-02-21 / 阅读(251) / 评论(0)

实用英语

英语听力—环球英语 1155 Northern Lights

Voice 1 Welcome to Spotlight. Im Rena Dam. Voice 2 And Im Ryan Geertsma. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Picture a dark black sky. Suddenl

发表于:2019-02-21 / 阅读(139) / 评论(0)

环球英语 Spotlight

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学英语单词

absorption-dispersion pair

achloropsia

active logic

aeriating

aerodrome flight information service (afis)

air traffic situation display (atsd)