[化] 自由基引发催化作用

VOA慢速英语 2007 1030b

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: Researchers at Ohio State University studied exercise-induced asthma among top athletes at the school. Ohio State football players practice earlier this year.

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VOA慢速英语2007年（十）月

英文流行歌曲：Justin Timberlake 《Not A Bad Thing》

出自贾老板Justin Timberlake（贾斯汀汀布莱克）的专辑The 20/20 Experience(2 of 2)。歌名可以意译为《爱我就对了》 Not A Bad ThingJustin Timberlake [Verse 1] Said all I want from you is to see you tomorrow 不用怀疑无论晨

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流行英文歌曲

雅思听力场景词汇:化学词汇

雅思听力场景词汇:化学词汇在雅思听力考试场景中，化学相关的场景的词汇较为生涩，平时生活中可能也运用得比较少，以下的词汇供大家参考喔。 molecule 分子 particle 粒子 ion 离子 particle

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雅思英语

9-15 为什么水果和蔬菜是健康的首选？

Why Fruit and Vegetables Are the Tops for Good Health? They used to say an apple a day keeps the doctor away. And according to the Department of Health, years of research shows that eating fruit and v

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英语沙龙2004全年合辑下

英语访谈对话 141 Wind Surfing

Todd: OK, let's talk about hobbies. What do you like to do in your free time? Roe: You mean other than seducing ladies? Todd: Yeah, well, we might actually have women listen to this. Roe: Just joking. Just joking OK. I like windsurfing. That's my num

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英语访谈对话

原版英语对话1000个:141 Wind Surfing

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原版英语对话1000个

美国习惯用语: Lesson 244 - free and easy / free-for-all

我们今天再来给大家讲解两个以free这个字为主的习惯用语。首先我们要讲的是：Free and easy. 大家都知道，free是自由，或者是不用花钱就得到的。大家也可

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美国习惯用语

英文歌曲：Justin Timberlake 《Not A Bad Thing》

出自贾老板Justin Timberlake（贾斯汀汀布莱克）的专辑《The 20/20 Experience(2 of 2)》，歌名由Justin贴吧吧主蓝田kanon意译为《爱我就对了》，专辑版含有一首隐藏曲目《Pair Of Wings》翻译为《比翼》。

发表于:2019-01-11 / 阅读(53) / 评论(0)

舞曲狂欢

2007年VOA标准英语-Writer, Former Dutch Politician Ayaan Hirsi Ali

By Carolyn Weaver New York, NY 30 January 2007 watch Ayaan Hirsi Ali part 2 report In 1992, Somali-born feminist Ayaan Hirsi Ali was forced by her family into an unwanted marriage. On her way to live with her new husband in Canada, she claimed polit

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2007年VOA标准英语（一月）

VOA标准英语2013--World Press Freedom Declines

World Press Freedom Declines Just one out of six people across the globe enjoyed a free press last year. Freedom House President David Kramer says the global decline in press freedom is a huge concern. A free press is critical to any country's democr

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VOA标准英语2013年(五月)

王强口语第二册 Dictation 019

Lesson Nineteen 听力部分 Dictation: Please prepare your paper and pen. There are really __________ for _____ wine ______-_______________ a good corkscrew, ____, _______________, __________ the ____ of _______. The ______________ that most America

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王强口语第二册

TED演讲:我们的大脑是如何交流的?(5)

And we believe that these responses in higher-order areas are induced or become similar across listeners 我们认为，听众这些相似的大脑高层次区块反应， because of the meaning conveyed by the speaker, and not by words or sound. 是由

发表于:2019-01-18 / 阅读(85) / 评论(0)

TED演讲科学篇

2007年VOA标准英语-Shakespeare in Central Park Opens 50th Season i

By Carolyn Weaver New York City 03 July 2007 Free outdoor performances of Shakespeare plays in Central Park have been a New York City summer tradition since 1957. This year, Public Theater producers have taken love as their theme, opening the season

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2007年VOA标准英语（七月）

VOA标准英语2008年-Tobacco Use Rises Among Women

By Carol Pearson Washington 07 May 2008 The World Health Organization expects the number of women who smoke to triple over the next generation, if current trends continue. As a result, it expects more than 200 million women to die from tobacco induce

发表于:2019-01-19 / 阅读(91) / 评论(0)

VOA标准英语2008年（五月）

微笑的方式-付出,也许无需有所得(2)

Ways to smile 微笑的方式 Give and maybe don't receive. 付出，也许无需有所得 College is a perfect time to get involved in volunteering for a cause. 大学是个为了一个目标参加志愿活动的绝佳时间。 No matter what your p

发表于:2019-01-22 / 阅读(83) / 评论(0)

英语听力广播—Listening

60秒科学:Pill May Change Attraction

Pill May Change Attraction In a study in the journal Trends in Ecology and Evolution, researchers note that the birth control pill may change a woman's choice in whom she finds attractive. Cynthia Graber reports Some people like to think theres somet

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60秒科学

让人无语的“电脑失忆症”

让人无语的电脑失忆症各种电子设备用久了，我们好像都习惯了打拼音、选汉字。真正要拿笔写字的时候就会出现提笔忘字的情况，有关专家把这种现象叫做电脑失写症。你有电脑失写症吗？

发表于:2019-02-02 / 阅读(100) / 评论(0)

实用英语

经济学人238:科技出版业好书来了

Science and technology 科学技术 Scientific publishing 科技出版业 Brought to book 好书来了 Academic journals face a radical shake-up 学术期刊面临彻底改变 IF THERE is any endeavour whose fruits should be freely available, that en

发表于:2019-02-05 / 阅读(91) / 评论(0)

经济学人科技系列

Single migrant women face high abortion risk

BEIJING, Sept. 26 (Xinhuanet) -- Young unmarried migrant women are facing a high risk of induced abortions in China and experts urged that they have better access to reproductive health education. Among the 8 to 10 million induced abortions performed

发表于:2019-02-07 / 阅读(84) / 评论(0)

英语新闻

Obama: Republicans Want 'Radical Vision' for America

In remarks in Washington on Tuesday, President Barack Obama denounced a $3.5-trillion Republican budget plan, saying it would harm middle class Americans and set back the nation's economic recovery. Mr. Obama's speech sharpened his message to voters

发表于:2019-02-18 / 阅读(81) / 评论(0)

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学英语单词

a basket of currencies

a peg to hang something on

alternating-charge characteristic