[网络] 单个微粒；单一粒子；单一微粒

TED演讲:摩尔有多大(1)

OK, today we're going to talk about the mole. 今天我们来谈一下摩尔。 Now, I know what you're thinking: I know what a mole is, 我知道你现在在想：我知道摩尔是什么， it's a small furry creature that digs holes in the ground

发表于:2018-12-18 / 阅读(193) / 评论(0)

TED演讲教育篇

纯正英语一分钟-Being single

Being single has its advantages and disadvantages. I think its better to stay single when youre young. You need to live and have fun. You also need the freedom to do what you want, when you want. Being single in your twenties gives you lots of time t

发表于:2018-12-26 / 阅读(196) / 评论(0)

纯正英语一分钟

美国英语听力80篇3 Lesson41

[00:07.21]NASA's Stardust spacecraft has successfully deployed a device that will collect extremely small particles in space. [00:16.95]The particles are called dust. [00:19.72]They form a stream of particles that flows through our solar system. [00:

发表于:2018-12-26 / 阅读(147) / 评论(0)

美国英语听力80篇

第23期: single, ring, pretty, smart, pool

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 single [ 5siN^l ] She buys a single ne

发表于:2018-12-30 / 阅读(200) / 评论(0)

每日攻克5词

4-13 都市杀手

Big City Killer If the cigarettes don't get 1 you the traffic pollution will. Up to a fifth of all lung cancer deaths in cities are caused by tiny particles of pollution, most of them from vehicle exh

发表于:2018-12-30 / 阅读(194) / 评论(0)

英语沙龙2004全年合辑上

中国的空气污染

Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme we're talking about a serious problem that has been affecting some of the big cities in China: that's air pollution. Finn:

发表于:2019-01-07 / 阅读(176) / 评论(0)

六分钟英语

SSS 2008-04-10

This is Scientific American's 60-Second Science, I'm Steve Mirsky, got a minute? Every Star Trek fan knows theres matter and antimatter, but why is there apparently so much more matter than antimatter？Scientific American's JR Minkel: Two recent exp

发表于:2019-01-08 / 阅读(230) / 评论(0)

Scientific American(四)月

2005年NPR美国国家公共电台七月-The 'Times' Fascination with the Single M

And now a question we're all pondering: Whats on the mind of an unmarried man? Day to Day contributor Brian Unger is single, but even he doesnt have a clue, still he says the New York Times is searching for an answer. On Friday, gawker.com, a website

发表于:2019-01-08 / 阅读(303) / 评论(0)

2005年NPR美国国家公共电台

SCIENCE IN THE NEWS - Snow

SCIENCE IN THE NEWS - December 10, 2002: Snow By George Grow VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recent dev

发表于:2019-01-08 / 阅读(253) / 评论(0)

科技之光

VOA慢速英语2011-SCIENCE IN THE NEWS - Let It Snow!

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell you everything you wanted to know about snow. (MUSIC) FAITH LAPIDUS: Winter has returned to northern parts of t

发表于:2019-01-11 / 阅读(179) / 评论(0)

2011年VOA慢速英语(一)月

VOA标准英语2011--Study: Upper-Atmosphere Particles Slow P

Study: Upper-Atmosphere Particles Slow Pace of Global Warming A recent study finds tiny particles suspended high in Earths atmosphere are having a greater impact on global climate than previously believed. The airborne particles, known as aerosols, a

发表于:2019-01-14 / 阅读(165) / 评论(0)

VOA标准英语2011年(八月)

VOA慢速英语20060110b

SCIENCE IN THE NEWS - Winter Cold: Everything You Ever Wanted to Know About SnowBy George Grow Broadcast: Tuesday, January 10, 2006 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob D

发表于:2019-01-16 / 阅读(204) / 评论(0)

2006年慢速英语（一）月

英语歌曲:格莱美年度歌曲-Single Ladies

格莱美年度歌曲：Single Ladies 这首歌的MV一经发布就引发了全美对当中舞步的模仿热潮，在2009年MTV音乐录影带大奖上，《Single Ladies (Put A Ring On It)》一举拿下年度最佳录影带、最佳舞蹈设计、最

发表于:2019-01-31 / 阅读(216) / 评论(0)

流行英文歌曲

每日一词【563】single out：选出，挑出

今天我们要学的词是single out。 Single out, 是选出，挑出的意思。 He was singled out as the person who started the fight, 据说这场架是由他挑起的。 He claimed that he was singled out for criticism because of his race, 他声

发表于:2019-02-02 / 阅读(190) / 评论(0)

英语每日一词

Official cars ordered off roads during hazardous pollution

BEIJING, Jan. 29 (Xinhua) -- Thirty percent of official cars in Beijing should not be used when there is extremely bad pollution, traffic authorities confirmed Tuesday. The order was implemented on Monday evening to help combat the fourth round of he

发表于:2019-02-04 / 阅读(302) / 评论(0)

英语新闻

英文歌曲:Single Girls

Single Girls Laura Jansen I think you'd like my new hair I cut it when you weren't there that pieces of us everywhere were falling down My bed is now a girl's bed Pink flowers under my head and pillows on your side instead of you Cause that's what si

发表于:2019-02-08 / 阅读(219) / 评论(0)

好听的英文歌曲

音乐咖啡厅:Laura Jansen - Single girls

音乐咖啡厅:Laura Jansen - Single girls 相关介绍：很显然对这些铺天盖地的独立音乐已经没什么好评论的了，不过这种欢快的调调真是百听不厌。这妮子在myspace上人气还满高的，非小清新系的甜美

发表于:2019-02-08 / 阅读(288) / 评论(0)

音乐咖啡厅

东京奥运会开幕式上，会有一场人造流星雨

If you thought Russia's recent efforts to prevent rain in the sky from dampening holiday spirits represented the ultimate in scientific stage management, you ain't seen nothing yet. 如果你认为俄罗斯最近为了阻止雨水毁掉节日氛围的努

发表于:2019-02-09 / 阅读(190) / 评论(0)

实用英语

【英语时差8,16】打喷嚏-下

Once stimulated, these muscles go to work and cause us to forcefully expel air from the mouth and nose. Or, in other words, we sneeze. Because the nose lining tends to swell when we lie down, making it even more sensitive to sneeze-causing particles,

发表于:2019-02-23 / 阅读(434) / 评论(0)

英语时差8，16

万物简史第367期:进入对流层(8)

Certainly there is no shortage of energy in the world above our heads. One thunderstorm, it has been calculated, can contain an amount of energy equivalent to four days' use of electricity for the whole United States. In the right conditions, storm c

发表于:2019-02-25 / 阅读(177) / 评论(0)

万物简史

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学英语单词

angular testing machine

anneile

apheliotropism

Atherinomorus