无机化合物

Life Grows in the Soil of Time by Thomas Mann What I believe, what I value most, is transitoriness. But is not transitoriness - the perishableness of life - something very sad? No! It is the very soul of existence. It imparts value, dignity, interest

发表于:2018-11-30 / 阅读(103) / 评论(0) 分类 英语励志美文精华

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(86) / 评论(0) 分类 英语语法 Grammar Girl

Rice had seen the same thing in Iceland, one of the few places on Earth with similarities to Mars. It too is extremely cold, and most of the water is frozen into glaciers. And also like Mars, buried u

发表于:2018-12-07 / 阅读(60) / 评论(0) 分类 火星生命

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(53) / 评论(0) 分类 美式英语正音训练

本讲为2006年下半年新的教学内容,请对照讲义听声音! Students(researcher/scholar) of Nature are not satisfied with guessing, but they observe, day after day, the changes which tak

发表于:2018-12-30 / 阅读(71) / 评论(0) 分类 自考英语(一)78讲

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(94) / 评论(0) 分类 农业与发展

Young Technology Expert Works to Stop Car Thefts Kenya is East Africas largest economy. Its capital Nairobi is growing quickly. But so is the citys crime rate -- the Nairobi Metropolitan Crime Observatory says thieves steal an average of 10 cars each

发表于:2019-01-12 / 阅读(52) / 评论(0) 分类 2014年VOA慢速英语(十一)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(124) / 评论(0) 分类 VOA标准英语2009年(八月)

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种,每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

发表于:2019-01-17 / 阅读(98) / 评论(0) 分类 TED演讲教育篇

Premier Li Keqiang says China should consider science and technology as a primary productive force. Scientific and technological innovation to a large extent determines the future of China's development strategy. In history, we have missed several te

发表于:2019-01-20 / 阅读(69) / 评论(0) 分类 英语新闻

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(141) / 评论(0) 分类 2018年VOA慢速英语(十二)月

-Sheldon:Leonard, excellent. I want to show you something. excellent:太好了 Leonard太好了,我想让你看点东西。 -Leonard:Can it wait? I need to talk to you. 能等一会吗,我们得谈谈。 -Sheldon:Just look. I've designed

发表于:2019-01-28 / 阅读(178) / 评论(0) 分类 生活大爆炸第一季

Sprigg submitted a paper to Nature, but it was turned down. 斯普里格给《自然》杂志写了一篇论文,但是没有被采用。 He read it instead at the next annual meeting of the Australian and New Zealand Association for the Advancement

发表于:2019-01-29 / 阅读(66) / 评论(0) 分类 万物简史

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

发表于:2019-01-29 / 阅读(59) / 评论(0) 分类 万物简史

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(128) / 评论(0) 分类 货币英语

Despite pledges in the last year to fight pollution, Beijing saw barely any improvement in air quality in 2013. The Beijing Environmental Protection Bureau says the intensity of major air pollutants remained much the same in 2013 as they were in the

发表于:2019-02-05 / 阅读(74) / 评论(0) 分类 CCTV9英语新闻2014年01月

Dropping your smartphone when taking a selfie could soon be less risky, says specialist glass maker Corning. 专业玻璃制造商康宁日前表示,自拍的时候不慎掉落手机可能不再会碎屏了。 Shattered or cracked screens are the n

发表于:2019-02-05 / 阅读(61) / 评论(0) 分类 英语新闻

Finally, and perhaps a little unexpectedly, readings can be thrown out by seemingly unrelated external factorssuch as the diets of those whose bones are being tested. One recent case involved the long-running debate over whether syphilis originated i

发表于:2019-02-17 / 阅读(62) / 评论(0) 分类 万物简史

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(80) / 评论(0) 分类 英语新闻

Israeli(以色列) researchers say they have developed a powerful bait that effectively attracts and kills malaria-infected mosquitoes but is completely harmless to humans and other animals. The toxic sugar bait developed by scientists at Hebrew Univ

发表于:2019-02-25 / 阅读(110) / 评论(0) 分类 英语新闻
学英语单词
ace it
Acer leiopodum
affiliated society
American hop
analysts
Androsace zayulensis
annuler
antennal neuron
Archibald prize
bacterial membrane
besport
blocking relay
body-ring
broken circle
c-type
caprimulgidaes
Carya tomentosa
cattle actinomycosis
cavum hyaloideum
chloroacrolein
chorea syndrome
chronic hepatic encephalopathy
cmyc
codebook coding
concave grating spectrometer
condylar fracture
cupro fibre
curvature vorticity
De Sauty's method
deflocculator
Dorila
dye-dilution
ecobuoy
edge-defined film-fed growth
Emissy
endoecism
ethyl sulfonamide
extraneous nonterminal
flank on
flat deck poultry cage
foliated talc
gulancha
Heilong
hexyne
hollow flint glass
honeworts
Huatong
hydroxyskatol
ingratiate hiself with
job vacancy
Kordofan
Kotoko
local shear
localized
lone signal unit
lonithermies
lump-sum pension
macrophoma magnoliae
marcerized cotton
mid-months
Modal fibre
monoclinic pyroxene
mound-birds
neuro-patterns
off one's game
oncoapoptosis
one flew over the cuckoo's nest
oxygen resuscitator
pack tilting device
Palairos
pancreaticjejunostomy
pelvimetry
poitrel
predrag
price fixing agreement
pumpkin vines
quench-fire
scalping screen
security operations
selection examination
sequesterer
short-driven bolt
sister species
skyscraper sheaf
SMSI
solid-state scintillation counter
spermatozoicide
split fractions
stack tree
stopper ladle
subdivision rules
subscleral
system source
teaming up
transfix
turn something over to somebody
undecidable ring
wavy water surface
whale-watch
whaps
yamanashi
zone letter