过碘酸希夫反应

新概念英语第一册Lesson 15 Your passport, please

Lesson 15 Your passports, please. 请出示你们的护照。 Listen to the tape then answer this question. Is there a problem with the Customs officer? 听录音，然后回答问题。海关官员有

发表于:2018-11-28 / 阅读(183) / 评论(0)

新概念英语第一册

TED演讲：气味背后的科学(2)

Now, while the smell wafts over you, let me tell you the history of an idea. 现在，趁着香味还萦绕在你们周围，我来为你们介绍一个想法形成的过程。 Everything that you're smelling in here is made up of atoms that come fro

发表于:2018-12-19 / 阅读(93) / 评论(0)

TED演讲教育篇

趣味青春英语电台第160期:On the rocks

Idiom: On the rocks 事情处于一个相对困难的状态中 Hit the book: Insufficient Insurance Cash flow Jeopardy Periodic Recipient Frankly Installment

发表于:2018-12-27 / 阅读(124) / 评论(0)

趣味青春英语

地道英语在线听-Blast from the Past 过去回忆的唤醒

Helen: Hello, this is Real English from BBC Learning English, Im Helen. Jean: 大家好，我是董征。欢迎收听地道英语。 Helen: In Real English, we look at words and phrases that you might not find in your dictionary. Jean: 和汉语一样，英语语言里也是有好

发表于:2019-01-02 / 阅读(112) / 评论(0)

地道英语在线听

SCIENCE IN THE NEWS - Killer Virus Brought Back From the Pas

SCIENCE IN THE NEWS - Killer Virus Brought Back From the Past, With the Hope to Avoid a New One By Cynthia Kirk and Caty Weaver Broadcast: Tuesday, October 18, 2005 (MUSIC) VOICE ONE: This is SCIENCE

发表于:2019-01-02 / 阅读(115) / 评论(0)

科技之光

VOA慢速英语2018 一万年前的英国人是黑皮肤蓝眼睛

Tests Suggest 10,000-Year-Old Brit Had Dark Skin, Blue Eyes Genetic material from a 10,000-year-old skeleton suggests the oldest-known Briton had dark skin and blue eyes. 根据一具1万年前的骨骼中提取的遗传物质表明，人们所知最古

发表于:2019-01-03 / 阅读(172) / 评论(0)

2018年VOA慢速英语(二)月

70.Senior Class

During the doctor's periodic visit to my elderly mother, I told him that Mother would be celebrating her 98th birthday in few days. Delighted by the news, he bent down and gave her a kiss for the occa

发表于:2019-01-03 / 阅读(92) / 评论(0)

英汉幽默故事选读

纯正地道美语第95期(外教讲解):Talking About a Pas

Daily Life - Talking About a Past Event (C0095) A: Mike! Hey, how are you, man! Long time no see! B: Hey, Pat! Yeah, I havent seen you in ages! How are you? A: Im doing great! Its funny running into you like this. Just last week I ran into Matt as we

发表于:2019-01-06 / 阅读(89) / 评论(0)

纯正地道美语

Rights Group Challenges US Security Policy on Airline Passen

Rights Group Challenges US Security Policy on Airline Passenger Lists Jim Malone A leading U.S. civil liberties group has filed a legal challenge to a program that seeks to bar people with suspected l

发表于:2019-01-07 / 阅读(132) / 评论(0)

VOA2004（上）--各类新闻

THIS IS AMERICA - Artistic Expression in Reaction to 9/11

THIS IS AMERICA - Artistic Expression in Reaction to 9/11 By Jerilyn Watson Broadcast: Monday, September 06, 2004 WRITER:

发表于:2019-01-07 / 阅读(178) / 评论(0)

This is America

CNN 2012-03-16

Wanted to slice out little time,we wish everyone a happy pie day on this March 14th.413 Ok.let's go ahead to get today's headlines. Two primaries two caucuses,110 delegates,that's what was the stake yesterday in the race for the Republican presidenti

发表于:2019-01-08 / 阅读(111) / 评论(0)

CNN2012年(三)月

学个词Learn a Word 第524期 knee-jerk reaction

今天我们要学的词是knee-jerk reaction。 Knee-jerk reaction, 膝跳反应，意思是本能的第一反应。 Investors' knee-jerk reaction to the market downturn led to a sell-off, 投资人对市场下滑作出的本能反应造成股价暴跌

发表于:2019-01-09 / 阅读(149) / 评论(0)

英语单词荟萃

VOA慢速英语2010年-Economics Report - Greek Lawmakers Pas

This is the VOA Special English Economics Report. Greece's debt crisis has shaken investors in the United States and worldwide. They worry that it could spread far beyond Greece. On Thursday, a day after huge protests in Athens, the Greek parliament

发表于:2019-01-12 / 阅读(137) / 评论(0)

2010年VOA慢速英语(五)月

每日一词【524】knee-jerk reaction：膝跳反应

发表于:2019-01-16 / 阅读(179) / 评论(0)

英语每日一词

万物简史第148期:基本物质(20)

For most of us, the periodic table is a thing of beauty in the abstract, but for chemists it established an immediate orderliness and clarity that can hardly be overstated. Without a doubt, the Periodic Table of the Chemical Elements is the most eleg

发表于:2019-01-29 / 阅读(88) / 评论(0)

万物简史

这个七夕特别的情书给特别的你

Idea 1: Write a small but romantic love letter (about 5 lines in length or less). Then, get your local newspaper and circle all the words you need (in order) to include in your letter. Then leave the paper with a special note on top telling him to pu

发表于:2019-02-04 / 阅读(138) / 评论(0)

英语美文

Senior Class

发表于:2019-02-04 / 阅读(89) / 评论(0)

趣味英语

商务礼节美语第170期:Faux Pas 失礼(上)

中国雇员Kathy忧心忡忡地去找美国同事Mark请教。 K: Hey Mark...do you mind if I ask you a couple of questions? Mark: No problem, I've got time. K: Great! Well, I'm going to Seattle for half a year. I'm attending a course at a universit

发表于:2019-02-04 / 阅读(142) / 评论(0)

商务礼节美语

商务礼节美语第171期:Faux Pas 失礼(下)

中国雇员Kathy要去美国考察，她找美国同事Mark了解美国文化，以免在待人接物的时候在礼节方面闹笑话。 K: If I'm using public transport...should I give up my seat if I see elderly people? M: Yes. I think that's pro

发表于:2019-02-04 / 阅读(132) / 评论(0)

商务礼节美语

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(202) / 评论(0)

实用英语

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学英语单词

a zoomorphic deity

accustomedness

air atimization

Anthony's capsule staining

barrier synchronization

behaviour model