na. 北极熊
[网络] 北极熊的采血点;爱上北极熊;梁伟灏

[00:02.49]Words to Learn 学单词 [00:06.74]morning早上 afternoon下午 night晚上 [00:12.30]breakfast早饭 lunch午餐 dinner正餐 [00:17.61]get up起床 go to bed睡觉 [00:21.31]eat吃 sleep睡 always总是 usually通常 [00:29.68]often经常

发表于:2018-12-13 / 阅读(235) / 评论(0) 分类 北师大版小学英语四年级

Megan loved bears more than anything else in the whole world. She had a polar bear, a grizzly bear, a panda bear, and even a koala bear. She had other animals too, but it was only the bears that got to sleep in Megans bed at night. Each night before

发表于:2018-12-18 / 阅读(94) / 评论(0) 分类 Children’s Stories-儿童故事集

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(162) / 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

Polar Bears Must Work Harder On Faster Sea Ice Treadmill奔跑吧!北极熊 Polar bears live on floating rafts of sea ice, hunting for seals. But in the Arctic Ocean north of Alaska, the cold polar wind constantly blows that ice from east to west. Wh

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 2017年Scientific American(四)月

Climate Change Fires Up Polar Bear Treadmill 气候变化害苦了北极熊 Polar Bears spend most of their time roaming the sea ice in search of seals. And seals spend most of their time underneath that ice, avoiding the top predator. But climate ch

发表于:2018-12-24 / 阅读(188) / 评论(0) 分类 2017年Scientific American(八)月

Researchers at Penn State University and the University of Buffalo have completed the most in depth bear DNA study to date. The project has revealed a lot about genetic relationships between bears, and also the unlikely romances that pepper their his

发表于:2018-12-28 / 阅读(108) / 评论(0) 分类 初学者听力文摘精选

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(223) / 评论(0) 分类 儿童英语小故事

The Polar Bear's Dinner by Chris Rose So, Im a polar bear, right? Got that? A polar bear. Not one of those brown bears that live in forests and on mountains. One of those big white ones, you know, surely. Where do I live? On an iceberg of course, not

发表于:2019-01-02 / 阅读(204) / 评论(0) 分类 原版英文故事与诗歌

By David McAlary Washington 27 December 2006 The United States is proposing to declare polar bears a threatened species because of their shrinking Arctic ice habitat. As we hear from VOA's David McAlary, analysts say the move is an unusual admission

发表于:2019-01-12 / 阅读(168) / 评论(0) 分类 2006年VOA标准英语(十二月)

By Paul Sisco Washington 16 May 2008 The United States Government, Wednesday [May 14] officially added polar bears to the list of threatened animals under the Endangered Species Act. Bush administration scientists decided the species is at risk of be

发表于:2019-01-13 / 阅读(110) / 评论(0) 分类 VOA标准英语2008年(五月)

New Movie Boosts Campaign to Save Polar Bears Polar bears are in trouble. Scientists say only 20,000 remain, and their long term survival could be at risk. The new IMAX movie, To the Arctic, is narrated by actress Meryl Streep. The movie tells the st

发表于:2019-01-13 / 阅读(150) / 评论(0) 分类 VOA标准英语2012年(五月)

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(192) / 评论(0) 分类 Weekender

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

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(123) / 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(125) / 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》
学英语单词
aemilia
Alplily
atomic number 85s
backwater slope
band of tolerance
be angry at
benzo(f)quinoline
bisearch
Bogomil, Bogomile
bombs incendiary
borne on
calculation model
canal of cervix of uterus
canvas bed
carries me
catsharks
CEMF(counter-electromotive force)
Cha La
chalazal chamber
chomecephalic
circular drilling fluid cleaner
circulate
Conda
cubic tonnage
cyclosizer
D.Crim.
deductibilities
dicyclohexyl maleate
electron-coupled circuit
ettie
felonepe
focos
formal lecture
freshwater mussels
fuel assembly transfer station
goeduck
Gorlin's syndrome
gringas
grokked
harmonic figuration
have excellent taste in
helium leak-check
high-speed electron
hit up someone
how you doin'
hysteromyomectomy
immediate control
Independent Labour Party
interregional unconformity
Jotunheim Mountains
Juncus kingii
kosuke
Kutchan-toge
lapse provision
laser oscillator-amplifier
leading principal minor
least cost routing
lesser duty
LISP program
logical omniscience
Loxomma
messed with you
metal to metal bonds
mid-value of class interval
Miodarone
mittelstands
native oranges
Nebitype
New Ringgold
noise filter
nonarteritic
not room enough to swing a cat
NRSEs
odd-lot
off standard product
oscillatory power surge
outer shafting
persuading
postal machine
proliferators
puncta vasculosa
scalar-density
sensitive relay valve
sharpsburg
shatterproof glass
solution transfer
statutory declaration
stope drift
suction mold
surface of revolution of tractrix
system of measurement units
time development
to reinforce
took a view of
torpedo rack
transposition theory
unsurprisable
up stakes
wasserstein
willenbring
woollen card
Yomadu