幂零自同态

NPR 2009-03-27

From NPR news in Washington. I'm Jack Speer. A key Senate committee has sighed off on President Obama's budget blueprint setting the stage for debate on the 3.6 trillion dollars spending package some time next week. Approval by the Senate Budget Com

发表于:2018-12-02 / 阅读(99) / 评论(0)

2009年NPR美国国家公共电台3月

SSS 2009-12-29

Could there be a substance that both gives us the munchies and can help combat obesity? There may indeed be, according to research published in the Proceedings of the National Academy of Sciences. The Monell Center in Pennsylvania partnered with Kyus

发表于:2018-12-02 / 阅读(70) / 评论(0)

Scientific American(十二)月

经济学人12:锻炼也会上瘾奔跑的奥秘

Science and technology. 科技。 Exercise and addiction. 锻炼也会上瘾。 Fun run. 奔跑的奥秘。 People, it seems, have evolved to be addicted to exercise. 人类似乎在进化过程中对锻炼上瘾了。 AS THE legions of gym bunnies a

发表于:2018-12-31 / 阅读(131) / 评论(0)

经济学人科技系列

什么是GRE阅读中的视角

谈到视角，很多同学可能会问，当我谈论视角的时候，我在说什么。看以下GRE考试中的一句话： The large number of physiological and behavioral similarities between birds and mammals, which have separate evolutionary h

发表于:2019-01-03 / 阅读(78) / 评论(0)

GRE英语

全球堵车

Rob: Hello, I'm Rob, welcome to 6 Minute English. I'm joined today by Jennifer. Jennifer: Hi there, Rob. Rob: Thanks for joining me. Now, this year the BBC is looking into the future, in key areas of science, politics, education and our personal life

发表于:2019-01-07 / 阅读(120) / 评论(0)

六分钟英语

CNN 2010-11-04

CARL AZUZ, CNN STUDENT NEWS ANCHOR: There's an old saying: It's not what you know, it's who you know. It might also be how you act. We're gonna make sense of that in just a bit. I'm Carl Azuz. Welcome to CNN Student News! First Up: Midterm Elections

发表于:2019-01-08 / 阅读(65) / 评论(0)

CNN2010年(十一)月

CNN 2011-02-06

Fridays are awesome! Just like the students and teachers at Ron Clark Academy, where I had the privilege of speaking yesterday. I'm Carl Azuz, bringing you 10 minutes of headlines, leaving out the commercials. Let's go ahead and get started. The fina

发表于:2019-01-08 / 阅读(96) / 评论(0)

CNN2011年(二)月

NPR 2009-08-02

Iran's state-run television station says three American tourists have been arrested after entering the country from northern Iraq without permission. The State Department is looking into the reports, as NPR's Allison Keyes reports. The three were re

发表于:2019-01-08 / 阅读(84) / 评论(0)

2009年NPR美国国家公共电台8月

VOA标准英语2011--Potent Antibodies Offer New AIDS Vaccine

Potent Antibodies Offer New AIDS Vaccine Design Researchers say powerful antibodies may hold clues to developing an effective AIDS vaccine. The antibodies were isolated from individuals already infected with HIV. Dr. Wayne Koff says the goal is to fi

发表于:2019-01-14 / 阅读(77) / 评论(0)

VOA标准英语2011年(八月)

经济学人52:广场上的旁观者

Books and Arts; Book Review;Revolution in Egypt;Square eyes 文艺；书评；埃及的革命;广场上的旁观者 Cairo: My City, Our Revolution. By Ahdaf Soueif. 开罗：我的城市，我们的革命。作者：AHDAF SOUEIF。 The big themes of

发表于:2019-01-26 / 阅读(62) / 评论(0)

经济学人文艺系列

英语博客：ESL Podcast 731 - Hints and Innuendo

Roberta: You know, my birthday is coming up. John: Yeah, I know. What are you getting at? Roberta: Nothing. I was just thinking that its kind of an important birthday, a major birthday. John: Yes, I know. Spit it out. What are you driving at? Roberta

发表于:2019-01-28 / 阅读(61) / 评论(0)

地道美语播客

omg美语：1017 OMG!美语 Willy Nilly!

1) Holy moly！太神奇了，我的天！ 2) willy-nilly 随意地,杂乱地 3) dilly dally 磨蹭 OMG冷笑话:子曾经曰过，有整理强迫症的少年上辈子都是折翼的天使，你伤不起。

发表于:2019-02-03 / 阅读(84) / 评论(0)

OMG美语

生活百态：为什么转圈时会头晕

What makes people dizzy when they spin? Rolling down a hill or spinning around in endless circles causes dizziness or vertigo because hair-like sensory nerve cells in our ears send wrong messages to our brain. The motions of our bodies are detected b

发表于:2019-02-13 / 阅读(79) / 评论(0)

阅读空间

学个词 Learn a Word-VOA英语教学 2894 potent

今天我们要学的词是potent。Potent形容词，意思是有效的、强有力的。Fentanyl, a super potent synthetic drug at the center of a new overdose crisis in America, is presenting huge challenges for law enforcement officials. 处在美

发表于:2019-02-16 / 阅读(52) / 评论(0)

英语单词荟萃

经济学人341:锻炼也会上瘾奔跑的奥秘

Science and technology 科学技术 Exercise and addiction 锻炼也会上瘾 Fun run 奔跑的奥秘 People, it seems, have evolved to be addicted to exercise 人类似乎在进化过程中对锻炼上瘾了 AS THE legions of gym bunnies and jogging

发表于:2019-02-16 / 阅读(108) / 评论(0)

经济学人科技系列

NASA ready to launch shuttle Endeavour

BEIJING, May 16 (Xinhuanet) -- NASA has readied the space shuttle Endeavour for its liftoff set for Monday, media reported Monday. Good weather looks 70 percent likely for Monday's scheduled launch of Endeavour, the next-to-last U.S. space shuttle mi

发表于:2019-02-18 / 阅读(70) / 评论(0)

英语新闻

英语歌曲:布鲁斯 Gucci Mane - Bingo

饶舌:Gucci Mane - Bingo 相关介绍：来自亚特兰大的Radric Gucci Mane Davis，在发行了个人首张专辑《Trap House》四年之后，人气日渐高涨。 Bricks, Photo Shoot, Shirt Off and Stoopid and the Make the Trap Say Aye remix等

发表于:2019-02-18 / 阅读(94) / 评论(0)

节奏布鲁斯

经济学人268:干细胞的应用特效医学

Science and technology 科学技术 The uses of stem cells 干细胞的应用 Potent medicine 特效医学 Stem cells may transform the development of new drugs 干细胞可能改写新药发展 PLURIPOTENT is a long word that means able to do many t

发表于:2019-02-24 / 阅读(91) / 评论(0)

经济学人科技系列

谚语欣赏

Bacchus has drowned more men than Nepture. 酒神淹死的人比海神多。 Bad news has wings. 坏事传千里。 Bad workmen often blame their tools. 拙匠常怪工具差。 Bare words, no bargain. 空言不能成交易。 Barking dogs seldom bit

发表于:2019-02-26 / 阅读(69) / 评论(0)

实用英语

与同事友好相处助长寿

Getting along with your work colleagues could actually help you live longer, new research has shown. A study of 820 men and women showed those with good peer-to-peer relationships had a lower risk of mortality than those did not chime with their co-w

发表于:2019-03-02 / 阅读(93) / 评论(0)

实用英语

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学英语单词

automatic low frequency load shed- ding device

ballot-box stuffing

bisulfite addition compound

Boris Spassky

Brackett limit