极性基体复合体

VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: Crabeater seals lying on the ice in Paradise Bay, Antarctica, in a 2005 photo And I'm Faith Lapidus. This week, an American study shows a link between air pol

发表于:2018-12-07 / 阅读(121) / 评论(0) 分类 VOA慢速英语2007年(二)月

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(161) / 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(157) / 评论(0) 分类 2016年Scientific American(十)月

Unit 27 Eat at least half your daily calories in complex carbohydrates. Unit 27 日常摄取的卡路里中至少要有一半是复合碳水化合物 Breads,pasta,cereal,beans and vegetables are complex carbohydrates that your body needs. Its the hig

发表于:2018-12-26 / 阅读(105) / 评论(0) 分类 减肥瘦身英语口语话题

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(279) / 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(222) / 评论(0) 分类 儿童英语小故事

basal cell layer 基底层 Behcet's syndrome 口眼生殖器综合征 bullae 大疱 bullae formation, vesiculation 水疱形成 bullous epidermal necrolysis 大疱性表皮坏死松解症 Candida albi

发表于:2019-01-03 / 阅读(181) / 评论(0) 分类 医务英语

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(191) / 评论(0) 分类 Weekender

Our story is about a girl named Iris. 我们的故事是关于虹膜女孩的。 Iris is very sensitive. So much that she is always in tears. 虹膜很敏感,以至于总是以泪洗面。 She cries when she's sad, when she's happy, and even tears

发表于:2019-01-17 / 阅读(128) / 评论(0) 分类 TED演讲教育篇

By Barry Unger Washington, DC 09 June 2006 watch Cancer report A pair of studies has discovered a connection between younger black women and a more aggressive form of breast cancer. The disease is affecting black women in both Africa and the United

发表于:2019-01-31 / 阅读(229) / 评论(0) 分类 2006年VOA标准英语(六月)

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(159) / 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(128) / 评论(0) 分类 环球英语 Spotlight

Hold your hand out and try to keep it perfectly still. After a moment, it will probably begin to shake. Hold that same hand out just before you give a major presentation to your new boss, and youll notice that those normal small tremors increase subs

发表于:2019-02-15 / 阅读(153) / 评论(0) 分类 英语时差8,16

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(136) / 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(122) / 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(124) / 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(138) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Now only the moon shone on the snow. Jack looked around for the polar bear. She was gone. Where'd she go? asked Annie. I don't know, said Jack. He looked over thetundra. There was no sign of the giant bear or hercubs. Maybe she's not interested in sc

发表于:2019-02-17 / 阅读(128) / 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(165) / 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(156) / 评论(0) 分类 环球英语 Spotlight
学英语单词
'course
a cut of motton
aenigmatites
afternoonish
agglaciation
alanson
anastomotic branch with lacrimal artery
arthritis sicca
asymptotic perturbation theory
ateles
average noise level
bakeprofen
baranies
belates
cevian
claustrophile
colourfilter
commodity in warehouse
construction phase
control transfer switch
corpora psalloides
cylinder tractive force
dam construction
degree of intensive farming
demon hunter
Dieu
dioramas
down l.
Dubingiai
embondaged
endocrine systems
excoriations
family cinclidaes
family hominidaes
flat cathode ray tube
guaiacum wood
hagenbach
Haridol-D
heptaopancreas
high technologies
high-speed anti-radiation missile
hydrohalloysite
inter-modal
internal copy group
irie
john winthrop
jordes
knurled thumb screw
liberatio
long-throws
mass-killings
master timing frequency
matara
mechanical impedance
Meterazine
method of docking
minimum cycle time
nonfatal
ocellularia neopertusariiformis
octodontid
oil-immersed water cooling
omnivority
OQL
overthrowest
pachyonychia
parasaissetia nigra
pediculate
penicillium rolfsii
performance capture
Phyllophorina kotoshoensis
pipe operator
platinates
Pneumoneces
portable applications standards committee
postion
practise medicine
prepontine
proselytism
psoriasis annularis
renocystograph
rolands'cement
Sanpolini's nerve
Semilovo
siddhanta
single echo
sinnets
slipper flower
slopped
snitched
spectre
spermatogonial cells
The sauce is better than the fish.
trumpet arch
unscored
uvulotomy
vasoinert
vided
Wadlew
worldcare
xors
Zackary
zinacanteco