苯二马来酰亚胺

万物简史第478期:生命在前进(20)

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(149) / 评论(0)

万物简史

SSS 2011-03-29

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(120) / 评论(0)

Scientific American(三)月

英文书摘精选有趣的事实,短嘴鳄可以再长牙齿

Fun Fact: Alligators Can Regrow Teeth 有趣的事实：短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(94) / 评论(0)

初学者听力文摘精选

英语听力文摘 English Digest 600、科学家如何预测火山喷发？

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(94) / 评论(0)

英语听力文摘 English Digest

Societe Generale chairman resigns

Societe Generale chairman resigns 法国兴业银行行长辞职 Societe Generale's chairman Daniel Bouton has announced his resignation, saying the personal attacks against him risked harming the bank. Mr Bouton has faced increasing criticism ever since a ro

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英语新闻

SSS 2008-04-17

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(138) / 评论(0)

Scientific American(四)月

SSS 2009-11-13

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(141) / 评论(0)

Scientific American(十一)月

Lonely bug

Lonely bug NB: This is not an accurate word-for-word transcript Dima:Hello and welcome to this edition of 6 Minute English with me, Dima Kostenko Rebecca: and me, Rebecca Byrne. Dima:Today we'll have some useful words and phrases used in science and

发表于:2019-01-10 / 阅读(138) / 评论(0)

六分钟英语

VOA标准英语2011--Libyans Optimistic on Democracy, Challenges Loom

Libyans Optimistic on Democracy, Challenges Loom In the first blush of enthusiasm after the nine-month struggle to oust Moammar Gadhafi, many Libyans are optimistic that the country will be able to move toward democracy with little payback for the ir

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VOA标准英语2011年(十一月)

VOA标准英语2013--Detroit Government Retirees Struggle to Keep Benefits

Detroit Government Retirees Struggle to Keep Benefits Don Taylor spent 26 years of his life as a police officer in Detroit, the city where he was born and raised. It was a dangerous job, but one he is fond of. It also provided a dependable paycheck,

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VOA标准英语2013年(四月)

Finance Ministers Optimistic Following IMF Talks on Global E

发表于:2019-01-19 / 阅读(155) / 评论(0)

VOA2004（上）--各类新闻

英语语法：69 Metaphors and Similes

Hi! This is Stever Robbins, host of the Get-it-Done Guys Quick and Dirty Tips to Work Less and Do More. Grammar Girl is working on her book this week and since I do a lot of public speaking, she asked me to talk about how to use similes and metaphors

发表于:2019-01-30 / 阅读(199) / 评论(0)

英语语法 Grammar Girl

2007年VOA标准英语-Analysts Generally Give Liberia's Johnson-Sirle

By Nico Colombant Dakar 16 January 2007 One year into the term of Liberia's post-war President Ellen Johnson-Sirleaf, many foreign analysts and aid workers are joining Liberians in giving her good marks for a job well done. But they also point to se

发表于:2019-01-31 / 阅读(176) / 评论(0)

2007年VOA标准英语（一月）

学个词Learn a Word 第310期 Limited

今天我们要学的词是，limited。 Limited, 是有限的意思。拉美裔移民在维吉尼亚州的王子威廉姆斯县罢工一天，The one-day work boycott appeared to have a limited effect on businesses in the county. 但似乎并没有对

发表于:2019-02-03 / 阅读(131) / 评论(0)

英语单词荟萃

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(268) / 评论(0)

英语新闻

学个词Learn a Word 第866期 Timing

今天我们要学的词是timing。 Timing, 时机。中文里说，赶得早不如赶得巧。英文里说, Timing is everything. 时机决定一切。The timing of his marriage proposal was perfect, 他求婚的时机恰到好处。目前就业市场

发表于:2019-02-07 / 阅读(122) / 评论(0)

英语单词荟萃

影视歌曲：Dima Bilan-Believe Me

I guess that this is where weve come to If you dont want to' then you dont have to believe me But I will be there when you go down Just so you know now Youre on your own now' believe me Yo' I dont wanna be the one to blame You like fun and games' kee

发表于:2019-02-08 / 阅读(91) / 评论(0)

英乐时空

Ginger whingers

Ginger whingers NB: This is not an accurate （精确的） word-for-word transcript6 Minute English ? Dima: Hi, welcome to 6 Minute English with me, Dima KostenkoRebecca: and me, Rebecca Byrne. Hi. Dima: Rebecca, can I begin by asking you a very very

发表于:2019-02-08 / 阅读(431) / 评论(0)

六分钟英语

2006年VOA标准英语-UN Secretary-General Expects Resolution on Leba

By Barbara Schoetzau New York 10 August 2006 The United States and France are continuing intense negotiations to agree on a joint resolution to present to the U.N. Security Council, aimed at a truce between Israel and Hezbollah in Lebanon. Secretary

发表于:2019-02-12 / 阅读(204) / 评论(0)

2006年VOA标准英语（八月）

学个词Learn a Word 第790期 Optimistic

今天我们要学的词是optimistic。 Optimistic乐观的。美国第二季度国内生产总值公布后，President Barack Obama said he is 'guardedly optimistic' about the direction of the U.S. economy, 美国总统奥巴马表示，他对美国经

发表于:2019-02-18 / 阅读(113) / 评论(0)

英语单词荟萃

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address control inhibition