美国化学学会

Boadcast: Jan 21, 2003 By George Grow This is Sarah Long. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recent developments in science. Today, we tel

发表于:2018-12-07 / 阅读(177) / 评论(0) 分类 VOA2003(上)-健康资讯

Society is changing rapidly. As a result, more and more people are suffering from stress. Those who are stressed out are often nervous, angry or ill. People must, therefore, learn to deal with this

发表于:2018-12-08 / 阅读(485) / 评论(0) 分类 赖世雄初级美国英语

STEVE INSKEEP, HOST: And I'm Steve Inskeep with the History of Our Time. At this unsettled and unsettling moment, we're asking what big trends are driving our history. RACHEL MARTIN, HOST: Presidential adviser Michael Anton talked of rising nationali

发表于:2018-12-18 / 阅读(200) / 评论(0) 分类 2017年NPR美国国家公共电台6月

Hi, I'm Carl Azuz, we welcome you to ourSeptember 11th 2013 edition of CNN student news. This is the anniversary of thetragic day of American history when members of al-Qaeda terrorists grouphijacked 4 passage planes of United States, they flow two o

发表于:2018-12-19 / 阅读(175) / 评论(0) 分类 CNN2013年(九)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber, this will just take a minute. For generations, nearly all medical research was done on men. And the assumption was that whats true for men is true for women. Now of course we know tha

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 Scientific American(五)月

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,掌握大意。 2、继续听,特

发表于:2018-12-26 / 阅读(121) / 评论(0) 分类 NPR边听边练

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(208) / 评论(0) 分类 Scientific American(八)月

Youre not under arrest, despite the fact that you probably have some drugs in your pocket. Because theres a good chance your paper money contains trace amounts of cocaine. According to a study presented August 16th at the American Chemical Societys n

发表于:2019-01-08 / 阅读(190) / 评论(0) 分类 Scientific American(八)月

Separated by Civilization: Trans-Atlantic Impasse (1) The war in Iraq has made the Atlantic seem wider. But really it has had the effect of a magnifying glass, bringing older and more fundamental differences between Europe and the United States into

发表于:2019-01-08 / 阅读(165) / 评论(0) 分类 英语阅读理解

Big thanks, big blues, into the students' hammert high to get a start today. Yesterday, we have explained a little bit about the United Nations' general assembly. Its annual meeting is happening this week in New York city. Ladies and representatives

发表于:2019-01-11 / 阅读(200) / 评论(0) 分类 美联社新闻一分钟2013(十月)

AMERICAN MOSAIC - Jumping, Climbing and Running: Nothing Stands in the Way of Parkour Also: The Environmental Film Festival in Washington. And music by the British band the Chemical Brothers. Transcript of radio broadcast: 20 March 2008 HOST: Welcom

发表于:2019-01-11 / 阅读(152) / 评论(0) 分类 VOA慢速英语2008年(三)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. This week, we will tell about an American study of the brain disorder schizophrenia. We tell about cars that use hydrogen as fuel. And,

发表于:2019-01-11 / 阅读(265) / 评论(0) 分类 VOA慢速英语2008(十)月

Comment Could Settle Syria Crisis or Make it Worse 克里的偶然言论或将解决叙利亚危机 From VOA Learning English, this is In the News. 这里是美国之音慢速英语新闻报道。 What seemed like an unplanned comment about Syria's c

发表于:2019-01-12 / 阅读(152) / 评论(0) 分类 2013年VOA慢速英语(九)月

It's, in short, how we learn what we know about other people and about the world. 简而言之,那就是我们如何了解到,我们对于其他人的认知,以及我们对于全世界的认知。 But we live in a 100-percent media-saturated so

发表于:2019-01-18 / 阅读(162) / 评论(0) 分类 TED演讲国际问题篇

Part II Listening Comprehension (30 minutes) Section A Directions:In this section,you will hear 8 short conversations and 2 long conversations.At the end of each conversation,one or more questions will be asked about what was said.Both the conversati

发表于:2019-01-25 / 阅读(230) / 评论(0) 分类 英语六级听力练习集锦

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

发表于:2019-01-27 / 阅读(233) / 评论(0) 分类 PBS访谈环境系列

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: A new report from the American Cancer Society finds breast cancer is now as common among black women in the U.S. as it is among white women. The data published this week shows the rate of breast cancer a

发表于:2019-01-27 / 阅读(156) / 评论(0) 分类 PBS访谈健康系列

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

发表于:2019-01-29 / 阅读(155) / 评论(0) 分类 万物简史

AGRICULTURE REPORT – July 30, 2002: Chemicals on Organic Food By George Grow (Photo -Scott Bauer) This is the VOA Special English AGRICULTURE REPORT. Farmers who grow organic food do not use chemica

发表于:2019-01-30 / 阅读(201) / 评论(0) 分类 农业与发展

Syrian, American Doctors Skype in Chemical Weapons 'Situation Room' FORT WAYNE, INDIANA A group of Syrian-American doctors had anticipated a major chemical weapons attack in Syria and was planning for ways to help the victims. But they were unprepare

发表于:2019-02-01 / 阅读(140) / 评论(0) 分类 VOA常速英语2013年(九月)
学英语单词
adenopoda
afflicters
air recirculation
air-driven hydraulic jack
analog input module
antilanguage
argie bargie
aromatic carboxylic acids ester liquid crystals
back blade
Bantadjé
bearance
bel(b)
Belait
beyond ... vision
binary silica optical fibre
built-up hob
Casparian dot s
cell adhesion molecules
CNSWTG
counterquestion
coupon tax
cut-and-fill structure
dibutyryl cyclic adenosine monophosphate
diminish
doubled double string
duckfucker
electrotherapist
episio
episodic movement
fiborinogen
fibre active connector
filho
free programmable word processing equipment
fumigation certificate
glowless
groutings
Horcasitas
huperzia squarrosa
hydroperoxidase(Theorell)
hyperbolic flow equation
igneously
ixodes spinipalpiss
Juilly
juvenile rift
Kolga-Jaani
kwh
kypes
light-section microscope
lithoautotroph
m-g main component
magniloquency
manam
media impression
methyl orange test paper
minimainframe
moisture free basis
myotome
niladic
non-sensitizing
nylon coating
operational flight trainer
OS/2
outer pericycle
oxcarts
pass someone by
Pedicularis megalochila
pending page queue
penobscot b.
Petromyzontidae
phyllosticta ambrosiodis thuman
pnl.
point of symmetry
powdered anthracite
power shot
prethink
procacity
ring-shaped valve seats
Romannobridge
salary administration
Saprosma henryi
senile hemangioma
sentry-duties
sequential decision function
short-circuits
steelit (altered mordenite)
strongylium albopilosum
submicrotubule
telolecithal egg
thalictrum squarrosum steph.
the bermuda triangle
tiddling
transmission loss of leaky coaxial cable
Tussaphed
twice-daily
unmask false evidence
vacuum leak
Viburnum burmanicum
Vinh Tan
Westphalians
wheel drill
Windows window
wonkery