雅思分类词汇大全：学科

English英语 Japanese日语 Chinese语文 mathematics数学 science理科 gymnastics体育 history历史 algebra代数 geometry几何 geography地理 biology生物 chemistry化学 physics物理 physical geography地球物理 literature文学 sociolo

英语听力：新概念英语第四册单词MP3 Lesson 18

aquaplane n. 驾浪滑水板 ashore adv. 上岸 beaver n. 海狸 belly n. 腹部 butt v. 碰撞 crack n. 重击 dolphin n. 海豚科动物 ensue v. 接着发生 equilibrium n. 平衡 for dear life 拼命地 formation n. 队形 indignity n. 侮辱 int

60秒科学:Murchison Meteorite's Chemical Bonanza

Murchison Meteorite's Chemical Bonanza The 1969 Murchison meteorite was known to harbor complex organic compounds, but a new analysis in Proceedings of the National Academy of Sciences finds that it may also contain millions of chemicals and shed lig

VOA慢速英语2014 Remember Your Chemistry Classes?

As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

VOA慢速英语2013 美国参议院委员会批准对叙利亚使用武力

US Senate Committee Approves Use of Force in Syria 美国参议院委员会批准对叙利亚使用武力 From VOA Learning English, this is In The News. 这里是美国之音慢速英语新闻报道。 This week, a United States Senate committee vot

VOA标准英语2010年-Oberlin Conservatory of Music Gives Di

Having the opportunity to take on a diverse range of classes such as economics and chemistry along with her music studies is the perfect combination for Diane. Marsha James | Washington DC 10 August 2010 Oberlin Conservatory of Music Student Diane Ly

科学美国人60秒 SSS 2016-1-1

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

科学美国人60秒 SSS 2013-10-11

This years prize is about taking the chemical experiment to the cyberspace. Staffan Normark, Permanent Secretary of the Royal Swedish Academy of Sciences at a press conference at 5:45 am US Eastern Time this morning. The Royal Swedish Academy of Scie

科学美国人60秒 SSS 2013-10-09

This year's prize is about taken thechemicaless experiment to Siberia space.Stafharn Cormack,permanent secondary thewell Swedish academy of sciences,and press conference at 5:45AM US eastern timethis morning.The lord Swedish acedemy of sciences has d

NPR边听边练134：塞浦路斯柳暗花明

主餐一道：泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议： 1、完整听一遍，掌握

pbs高端访谈:危险化学品六价铬污染美国饮水系统

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

万物简史 第142期:基本物质(14)

No one knew about his principle, because Avogadro himself was a retiring fellow, he worked alone, corresponded very little with fellow scientists, published few papers, and attended no meetings but also it was because there were no meetings to attend

万物简史 第132期:基本物质(4)

Although chemistry had come a long way in the century that separated Newton and Boyle from Scheele and Priestley and Henry Cavendish, it still had a long way to go. Right up to the closing years of the eighteenth century (and in Priestley's case a li

精美英文欣赏:What is Your Recovery Rate?你的恢复速率

沉湎过去,就无法与今天同行,明天因而也成了一个遥遥的无期。 沉湎过去，就无法让我们的每天过得精彩，痛苦因而成了一个咒语无法摆脱。 What is Your Recovery Rate? What is your recovery rate? How lon

VOA标准英语2009年-3 Scientists Share Nobel Chemistry Prize f

By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom

雅思分类词汇：环境资源相关(二十五)

学科SUBJECTDISCIPLINES 科目Subjects 声学Acoustics 农业生态学Agriculturalecology 农业经济学Agriculturaleconomics 农业工程Agriculturalengineering 农业林学Agroforestry 分析化学

经济学人292:天体化学 空中的大试管

Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel

英文歌曲:Chemical Rush

Chemical Rush Brian Mcfadden Chess game, Im the pawn Youre the queen, Im the throne Take me out tonight Make your move, pick and choose Anywhere Im gonna lose Give it to me black or white Feel it coming on Like a pulse in my head Sending chills right

AP美联社一分钟新闻(2010-08-03)

This is AP news minute. The Environmental Protection Agency says BP has cut its use of chemical dispersants in the Gulf of Mexico by nearly three quarters since May. That statement comes a day after Congressman Ed Markey released a letter saying BP c

双语有声阅读：化学的历史

The History of Chemistry Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But chemical knowdedge is as old as history, being almost entirely concerned