极性反应

A new study has found that the Arctic's iconic polar bears are finding it harder to hunt for food due to melting sea ice caused by climate change, putting the species at a growing risk of extinction. Researchers from the United States Geological Surv

发表于:2018-12-24 / 阅读(179) / 评论(0) 分类 2018CRI中国国际广播电台

When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bea

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 2016年Scientific American(十)月

Seventy-nine degrees north latitude is near the top, at the cold edge of the world. In the winter, when temperatures plunge below freezing, there is complete darkness at noon. During summer, the sun shines at midnight, there is no place to hide. Dang

发表于:2018-12-30 / 阅读(296) / 评论(0) 分类 国家地理2007年

She worries a lot. She worries about polar bears. They are big, white bears. They live in the north. They need snow. They need ice. They need cold weather. There is too much pollution. Pollution heats up the Earth. Heat melts the ice. The ice is the

发表于:2018-12-31 / 阅读(246) / 评论(0) 分类 儿童英语小故事

Alisha Ryu In Iraq, the nomination of a former exile with close ties to the United States to become the country's interim prime minister on June 30, has met with with mixed reactions from Iraqis. Most

发表于:2019-01-03 / 阅读(208) / 评论(0) 分类 VOA2004(上)--国际时事

THIS IS AMERICA - Artistic Expression in Reaction to 9/11 By Jerilyn Watson Broadcast: Monday, September 06, 2004 WRITER:

发表于:2019-01-07 / 阅读(245) / 评论(0) 分类 This is America

今天我们要学的词是knee-jerk reaction。 Knee-jerk reaction, 膝跳反应,意思是本能的第一反应。 Investors' knee-jerk reaction to the market downturn led to a sell-off, 投资人对市场下滑作出的本能反应造成股价暴跌

发表于:2019-01-09 / 阅读(210) / 评论(0) 分类 英语单词荟萃

By Michael Bowman Washington 19 February 2008 Reaction from around the world to the retirement of Cuban President Fidel Castro has been mixed and cautious. From Washington, VOA's Michael Bowman reports. Fidel Castro's retirement formally ends the rul

发表于:2019-01-09 / 阅读(143) / 评论(0) 分类 VOA常速英语2008年(二月)

Kenyan Reaction to Kenyatta Victory Decidedly Mixed Kenya's Independent Electoral and Boundaries Commission says Uhuru Kenyatta secured a slim majority - 50.07 percent of the vote. That eliminated the need for a runoff against his main rival, Raila O

发表于:2019-01-14 / 阅读(187) / 评论(0) 分类 VOA标准英语2013年(三月)

BBC Learning English Weekender Polar Explorer Amber: Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to an interview with explorer, Rosie Stancer. In March, Rosie sets off on her latest expedition walki

发表于:2019-01-16 / 阅读(213) / 评论(0) 分类 Weekender

今天我们要学的词是knee-jerk reaction。 Knee-jerk reaction, 膝跳反应,意思是本能的第一反应。 Investors' knee-jerk reaction to the market downturn led to a sell-off, 投资人对市场下滑作出的本能反应造成股价暴跌

发表于:2019-01-16 / 阅读(242) / 评论(0) 分类 英语每日一词

Russias Reaction Against Gay Rights Starts in St Petersburg MOSCOW Russia has become the worldwide target of gay activists for its new law banning gay propaganda. St. Petersburg is the birthplace of Russias reaction against gay rights. In St. Petersb

发表于:2019-02-01 / 阅读(186) / 评论(0) 分类 VOA常速英语2013年(九月)

STOCKHOLM, May 8 (Xinhua) -- The 2012 Swedish Polar Music Prize was awarded to the American singer-songwriter Paul Simon and the Chinese American cellist Yo-Yo Ma, the prize committee said in a statement on Tuesday. For five decades, Paul Simon has b

发表于:2019-02-09 / 阅读(179) / 评论(0) 分类 英语新闻

Voice 1 Thank you for joining us for todays Spotlight. Im Rebekah Schipper. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Sib

发表于:2019-02-14 / 阅读(143) / 评论(0) 分类 环球英语 Spotlight

The dogsled skimmed silently over the frozentundra. The seal hunter ran alongside it. Sometimeshe cracked his whip against the ice. The snowdrifts looked like giant white sculptures asthe sun slipped behind the frozen hills. Then a fullorange moon ro

发表于:2019-02-17 / 阅读(147) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

The dogs were barking wildly at two smallcreatures playing in the moonlight. Polar bear babies! cried Annie. One roly-poly cub leaped onto the other. Then theyboth rolled through the snow. Hi, little bears! Annie called. The cubs jumped up and shook

发表于:2019-02-17 / 阅读(138) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

The cubs whimpered louder. They want to go to her, but they're afraid of theice, whispered Jack. Annie petted the cubs. Don't be afraid, she told them. You'll get back toyour mother.The big polar bear growled. She paced back andforth, sniffing the ai

发表于:2019-02-17 / 阅读(133) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack, you can get up now, said Annie. Jack opened his eyes. Annie was standing over him. She still had her mask on. We're on safe ground, she said. Jack felt as if he'd been dreaming. He lookedaround. They had reached the tundra at the edge ofthe fro

发表于:2019-02-17 / 阅读(155) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

BEIJING, June 21 (Xinhua) -- China will launch a new icebreaker for use during an upcoming 2013 polar expedition, a senior oceanic official said on Tuesday. Both the new icebreaker and Xuelong (Snow Dragon), an icebreaker that operated in Antarctica,

发表于:2019-02-18 / 阅读(192) / 评论(0) 分类 英语新闻

Voice 1 Hello, Im Marina Santee. Voice 2 And Im Ruby Jones. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 A tall man stands s

发表于:2019-02-21 / 阅读(174) / 评论(0) 分类 环球英语 Spotlight
学英语单词
accessory thymic nodules
accustome
action-man
angiologist
apicoposterior segmental bronchus
application cylinder
arm bushing
attribute authority
Bacillus fusiformis
barometric mean temperature
basic time-sharing operation
Blacknam
blast trauma
blow buddy
bonded section
Brymbo
cardioprotective
cavetto molding
ceiling temperature in polymerization
charged particle excited x-ray fluorescence spectrometry
coby
countercharges
crazy quilts
customer station set
cylindricule
decoud
definers
derest
deviation of the vertical
Dogdyke
electro-active
end-fire
esthetic
estimation of fatigue life
Fabre
feoh
Fusocandona
ganesan
geographical wages difference
gorvitz
halfdone
hardware deficiency
have no bowels
I am what I am
immiscible liquids
invertile
Kissamou, Kolpos
langemarck
largitions
liver stain
luminies
macromolecular compound
maematopota formosana
mole crab
monocular vision
MUNIN
muston
niaiserie
nonnationalistic
Now we shan't be longer.
open circuit admittance
original net rate to head office
panoply
Pelotas, Estero de
post-sputnik
primary distillation tower
print titles
projection course
propyl isorhodanide
psychological isolation
Quercus imbricaria
radius (pl. radii)
rearrangement peak
robbery-homicide
rope mangle
s.a.f.e
scientific-atlanta
searge
Shade-endurance
Smiltene
soda plot
spacer etch
squick
ST_sports_motor-racing
staggered spot-welding
steam dredger
Sudhebh, Doi
symmetric computer
Tarumovskiy Rayon
tonsillowilliasis
tube pyrolysis furnace
tubulovillous
unit acceleration force curve
unmoralizing
vacillation cycle
vanilla bean
vrikshasan
webpage
xiphiine
yobi-
Zanha