聚光色素

Algae naturally produce oil, when its process start with oil turned into bio fuels, an alternative energy source. This is just one snag. Harvesting the oil from algae-float water is prohibitively expensive. But researchers have come up with an effort

发表于:2018-12-24 / 阅读(99) / 评论(0) 分类 Scientific American(一)月

This is scientific Americans 60 second science, I am Sophie Bushwick. got a minute. Tens of millions of years ago, cephalopods were hiding from their enemies in clouds of ink. And it turns out that cuttlefish today produce ink thats almost identical.

发表于:2018-12-24 / 阅读(94) / 评论(0) 分类 Scientific American(五)月

(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex

发表于:2018-12-30 / 阅读(108) / 评论(0) 分类 托福听力短文

Broadcast: May 12, 2003 By Jill Moss This is the VOA Special English Development Report. Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels

发表于:2019-01-02 / 阅读(140) / 评论(0) 分类 VOA2003(上)-社会广角

发表于:2019-01-03 / 阅读(138) / 评论(0) 分类 医务英语

Now, heres something you dont see every day: scientists cure color-blind monkeys. According to a report published online in the journal Nature, researchers have used gene therapy to allow color-blind squirrel monkeys to look at their fruit in a whole

发表于:2019-01-08 / 阅读(134) / 评论(0) 分类 Scientific American(九)月

Imagine Van Gogh's paintings of yellow sunflowers. Now imagine the flowers brown. Eh, not so good. Sadly, we may someday see what that would look like. Because the bright yellow paints on the canvas are slowly turning muddy. Now, an international tea

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 Scientific American(二)月

Hi, its Kasey-Dee Gardner for Why? Tell Me Why? This week we received a question about baby eye color. The question was why are most babies born with blue eyes?. And I wasnt sure that was a true statement, but it is in fact a true statement. Actually

发表于:2019-01-09 / 阅读(105) / 评论(0) 分类 自然百科2009年

By Matt Steinglass Hanoi 20 September 2006 Black bear cubs An animal rights organization has reached an agreement with Vietnam's government to build a bear sanctuary near Hanoi. The refuge will house bears rescued from farms where their bile is harv

发表于:2019-01-11 / 阅读(171) / 评论(0) 分类 2006年VOA标准英语(九月)

Sea Life Color Codes Food to Evade Danger The ocean glows with undersea life which makes its own light. These animals living on the ocean floor, beyond the reach of sunlight, have evolved this bioluminescence for camouflage, to find mates or to repel

发表于:2019-01-13 / 阅读(125) / 评论(0) 分类 VOA标准英语2012年(九月)

The local food movement is growing in the United States. Restaurant owners and families look to nearby farms for fruits, vegetables and meat. Now small forest owners want to join the local food party. They're promoting edible mushrooms, berries, and

发表于:2019-01-13 / 阅读(107) / 评论(0) 分类 VOA标准英语2010年(十二)月

Kinetic artist Carlos Cruz-Diez was born and raised in Caracas, Venezuela, but has spent half of his 87 years in Paris. There he developed a worldwide following for works that challenge how we see color. His illusion-filled pieces are now on display

发表于:2019-01-14 / 阅读(121) / 评论(0) 分类 VOA标准英语2011年(二月)

AILSA CHANG, HOST: Sea salt has been harvested for more than a thousand years on the Atlantic coast of France. The industry declined in the mid-20th century. But with foodies looking for ever-fancier ingredients, NPR's Eleanor Beardsley reports the s

发表于:2019-01-16 / 阅读(98) / 评论(0) 分类 2017年NPR美国国家公共电台8月

Huang Jiefu, director of the China Organ Transplant Development Foundation, has told an international symposium on transplants in Hong Kong that persistent reports of organ harvesting taking place in China are simply not true. The rumor about organ h

发表于:2019-01-19 / 阅读(106) / 评论(0) 分类 2016CRI中国国际广播电台

It may seem hard to believe that such an unusual looking animal has remained hidden for so long. 世界上存在如此相貌罕见而不为人知的动物,这似乎有点难以置信。 But scientists have only just discovered a new species of elep

发表于:2019-02-05 / 阅读(118) / 评论(0) 分类 英语新闻

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

发表于:2019-02-06 / 阅读(118) / 评论(0) 分类 阅读空间

Hilary Duff - Come Clean Come Clean Hilary Duff Let's go back Back to the beginning Back to when the earth, the sun, the stars all aligned 'Cause perfect didn't feel so perfect Trying to fit a square into a circle Was no life I defy Let the rain fall

发表于:2019-02-08 / 阅读(119) / 评论(0) 分类 好听的英文歌曲

WASHINGTON, Nov. 14 (Xinhua) -- Nearly a fifth of all Americans 12 years or older have hearing loss so severe that it may make communication difficult, according to a new study led by Johns Hopkins University researchers and published Monday in the A

发表于:2019-02-18 / 阅读(133) / 评论(0) 分类 英语新闻

Q: What is the saddest truth about life? 生活中令人沮丧的真相是什么? 获得9.5k好评的答案@Dushyant Bhati Half the world's starving; the other half is trying to lose weight. 世界上有一半的人正在挨饿,另一半的人却在

发表于:2019-02-18 / 阅读(117) / 评论(0) 分类 阅读空间

In modern times, most people choose to use electrical devices, like refrigerators, to keep drinks cool. But summer visitors at Rockywold-Deephaven Camps in New Hampshire cool their drinks the old-fashioned way - using large blocks of ice in wooden bo

发表于:2019-02-19 / 阅读(96) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
ABBP-1
accelerated reader
aid kit
air-core coil
airgaps
ambisinister
aweary
bending moment curve
benesches
bestrew with
bilateral spore
blood-relationship
broches
Bulkley pressure viscometer
CD-ROM changer
chrome coating
citizenly
cleft sternum
congratulated
corydalis
D. P. C.
DADL
dejectedness
deposit tank
draft figures
Dubovo(Dubau)
employee incentive fee
etc., et cetera
extra long staple
Ferreira Gomes
findspots
fisherboy
gers
grenadillas
gurcharans
hand-land
heavy lift derrick
high purity metal
horizontal cut and fill stoping
hybos major
hygral shrinkage
in the face of the world
inguinofemoral
lifethat
Lipschutz ulcer
low expansion alloy
marble-cake federalism
Marian Lake
Maunoir, L.
metavoltine
minimum-delay wavelet
murray gell-manns
Neutral period
non regenerative oven
numbed
nylon cord rubber belt
objective circumstance
on-line community
operation license
parapoxvirus seal parapoxvirus
parastatal
Pedionomidae
phase errors of the colour subcarrier
phosphorus absorption
pig farming
polar activation
prepapillary
pyro-acetic
pyromanic
red heart rot
reinflame
reinserted carrier
retracted type obstetric delivery bed
running belay
seger-cone
session level pacing
shovel tests
simulated experiment
slow scan television
sludge paddock
spring catch
standard Euro-currency rates
submaxillary lymph nodes
suction capacity
superficies solo cedit
tatlers
tax-saving
technology advances
toiletroll
trousers
tryto
twid
twinkleberry
two-storey faces
twoparts
undischarged counter
Weatherby brow
well collimated beam
whsmn.
working armchair and file cabinet
zoneleveler
Zygonemataceae