[有机化学] 杂环化合物化学

Review Exercise E: Two- and Three-Word Set Phrases CD 3 Track63 You should be pretty familiar with the idea of a set phrase by now. The next step is when you havemore components that link together to form a new thinga three-word set phrase. Combine t

发表于:2018-12-03 / 阅读(79) / 评论(0) 分类 标准美语发音的13个秘诀 CD3

Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w

发表于:2018-12-07 / 阅读(103) / 评论(0) 分类 英语语法 Grammar Girl

Some components of a thriving friendship are honesty,naturalness,thoughtfulness,some common interest.--- Ralph Waldo Emerson, American poet and essayist. 确保友谊长青的要素是:诚实,朴实,自然,体贴和某些共同的兴趣。---拉

发表于:2018-12-20 / 阅读(65) / 评论(0) 分类 Daily English-2016.06

发表于:2018-12-25 / 阅读(90) / 评论(0) 分类 洋话连篇

Intonation can indicate completely different meanings for otherwise similar words or phrases. For example, an English teacher teaches English, but an English teacher is from England; French class is where you study French, but French class is Gallic

发表于:2018-12-27 / 阅读(57) / 评论(0) 分类 美式英语正音训练

Narrator: Exercise 3.8. Dictation 1: Air pollution / is probably the modern world's greatest threat. / Water can be filtered, / land can be cleared, / but filthy air can only be filtered / by the nose and lungs. / It is estimated / that living in a b

发表于:2018-12-30 / 阅读(107) / 评论(0) 分类 202 Useful Exercises for IELTS

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

发表于:2019-01-03 / 阅读(96) / 评论(0) 分类 2014年VOA慢速英语(八)月

The early Earths oceans were home to a lot of interesting chemistry. Now scientists have found that amino acids thought to be present way back when could have been cooked into other compounds vital for lifean idea you should take with a grain of salt

发表于:2019-01-08 / 阅读(54) / 评论(0) 分类 Scientific American(九)月

AGRICULTURE REPORT - Scientists Find Compound in Smoke that Helps Seeds Grow By Mario Ritter Broadcast: Tuesday, July 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. A di

发表于:2019-01-11 / 阅读(99) / 评论(0) 分类 农业与发展

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

发表于:2019-01-13 / 阅读(74) / 评论(0) 分类 VOA标准英语2010年(八)月

The United Nation's World Food Program says rogue members of Somalia's extremist al-Shabab group attempted to raid its compound late Sunday in the Somali town of Wajid, about 300 kilometers northwest of Mogadishu. World Food Program spokesman, Peter

发表于:2019-01-14 / 阅读(129) / 评论(0) 分类 VOA标准英语2009年(八月)

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(117) / 评论(0) 分类 2016年Scientific American(十)月

台湾籍旅美老师今天交给我们的句子是: Eventually, most of these more intense, obsessive components of new love settle down into a deeper, calmer form of love associated with attachment and bonding. 这种令人窒息的爱终将逐渐缓

发表于:2019-01-20 / 阅读(52) / 评论(0) 分类 留美老师带你每日说英文

What do these five words have in common: hotdog, fireworks, well-being, waistline, sunset and ice cream? They could all describe a fun holiday celebration. For example: My holiday was wonderful! I went to a friends party and we laughed, ate and had a

发表于:2019-01-21 / 阅读(146) / 评论(0) 分类 2018年VOA慢速英语(十二)月

By Elizabeth Carlassare. Todays topic is compound interest. Albert Einstein is often quoted as having said something to the effect that compound interest is the greatest wonder of the universe. Its an urban legend, but it packs some punch! In todays

发表于:2019-01-30 / 阅读(132) / 评论(0) 分类 货币英语

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

发表于:2019-02-03 / 阅读(77) / 评论(0) 分类 VOA标准英语2009年(十月)

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(84) / 评论(0) 分类 2007年VOA常速英语(十月)

A Japanese and a pair of American scientists captured this year's Nobel chemistry prize for discovering a glowing green protein in jellyfish that can be used to spot the beginning of diseases like cancer. Lisa Bryant has more on the prestigious awar

发表于:2019-02-06 / 阅读(72) / 评论(0) 分类 VOA标准英语2008年(十月)

ISLAMABAD, Feb. 25 (Xinhua) -- The living compound of the former al-Qaida chief Osama bin Laden in Pakistan's northwest city of Abbottabad is being demolished, said one local media report. Local Urdu TV channel Express said that the front part of bin

发表于:2019-02-18 / 阅读(86) / 评论(0) 分类 英语新闻

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(106) / 评论(0) 分类 TED演讲教育篇
学英语单词
A friend in need is a friend in deed
acetonitrite
acnielsen
altitude acquisition technique
anteclassical
arents
association of shareholders
ballet del teatro lirico nacional
Baltic Marine Biologists
beadus
billeted
Bingham
bow kites
briar tooth
catholicates
catug
channel effective transmission bandwidth
Chippewa County
crystal fundamental
Czernina
Daconil
de-alcoholize
deformation resistance curve
desamidase
direct data channel
effect amplifier
encapsulted torpedo
ergastoplasmic
falkler
Fitero
fixsenia watarii
floating potential instrumentation
gadding machine
genus malaclemyss
globe pepper
grabage shoot
gray mercy
haphazard selection
heavy feeder
high energy region
high line boat
HKMLM
honeycomb board
index of consumption
industrial programming language
input characteristic
jig-mill
Linards
Lindau-von Hippel disease
little grebe
long run prediction
lord privy seals
low birth weight
lunar atmosphere
manic depression
marginal degree of utility
marginal points
mechanical force
mediating technology
military expenditures
Moisy
monothecous
mouttet
non-crystallizing rubber
normative behavior
ogiss
operating-systems
overblown
phase-shifting type
pneumarthrosis
potyvirus leek yellow stripe virus
prestaining
price flexbility policies
prometric
proteus anguinuss
resined
sealifts
senior advisor
shunt-resonant circuit
single phase automatic reclosing
skin popping
solution polymerized styrene-butadiene rubber
Space Invaders
space-saver dial
spurt loss
staggered brush arrangement
SUBERGORGIIDAE
supertrees
teargassing
teeth cutter
thermosetting sand
Thruxton
transmittance
triadaxis
two streams
underwater electroacoustics
unresonants
ununiformity
vagus nerve nucleus
volta couple
white charlock
your telegram