调和极线

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(173) / 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(163) / 评论(0) 分类 2016年Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Why do some chords sound sweet but others make you wince? Well it appears our earsor at least the ears of 250 Minnesota undergradsprefer chords containing harm

发表于:2018-12-24 / 阅读(176) / 评论(0) 分类 Scientific American(五)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(284) / 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(236) / 评论(0) 分类 儿童英语小故事

Students who listened to different chords rated as more pleasing the ones that westerners think of as harmonious, the individual notes of which have definite mathematical relationships 【英文文本】 Why do some chords sound sweet but others make

发表于:2019-01-02 / 阅读(167) / 评论(0) 分类 60秒科学

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(118) / 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(161) / 评论(0) 分类 VOA标准英语2012年(五月)

Polar Scientist Charts Melting Caused by Climate Change Michael Gooseff follows water to the end of the earth. The Pennsylvania State University hydrologist works in remote regions of the Arctic and Antarctic, where ice and frozen ground are thawing.

发表于:2019-01-14 / 阅读(115) / 评论(0) 分类 VOA标准英语2011年(八月)

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(203) / 评论(0) 分类 Weekender

Vocalist Catherine Russell is always searching for that next great melody. She's found more than a dozen of them to sing on her latest album, Inside This Heart Of Mine. Catherine Russell is a perfectionist when it comes to choosing her material. Her

发表于:2019-02-06 / 阅读(169) / 评论(0) 分类 VOA标准英语2010年(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(169) / 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(135) / 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(140) / 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(127) / 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(129) / 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(145) / 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(133) / 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(178) / 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(165) / 评论(0) 分类 环球英语 Spotlight
学英语单词
action drive
Alcubierre drive
always a bridesmaid, never a bride
antiselena
astronuclear
at arms length
audience profile
back and fill
basic personal allowance
bayhar
bellin
biopelmicrite
Bizhe
braugher
brick-red
cation active
Chandler Springs
cheirokinesthetic center
chemically precipitated powder
comyns
controlled airdrome
Costain, Thomas Bertram
dealer purchases
diagnostic capabilities
dithane Z-78
Dodgson
drive offs
e-fora
electronic signatures act
entity-relationships
erythropoietic protoporphyrin
exhaustive estimator
FADF
fatigue study
flosses
fue
gigglefest
gradus
Hato, Bocht van
head fold
heterochronic restitution
hexacanth embryo
high tension cell
huckaback
in the Bush
inaccurately
integral of generalized energy
isostrophanthoside
leros
machine all over
male blade
malignant melaria
membrane eigenvalue
midrash
minimum descent altitude (mda)
Nepeta taxkorganica
neutral estuary
noisy withdrawal
non-polar organic reaction
nonfragranced
opercula
orthomelic
palptibia
Panamanian flag
paraphrenia hebetica
partial parasite
petrossov
photo-etched slow wave structure
questio
ray divergence
recoll
Renata
Ribes alpestre
roly
rubbericebottle
scapulated
schisms
semiadoption
seratonin
serens
single state
SMI-S
songster
Southern Rhodesian
Spatium subarachnoideum
subordinated notes
susceptance
Sučany
take a whiff or two
talking path
Tardieu's spots
tenntuss
tetralonia taihorensis
the department of justice
time-varying linear filter
turbine overspeed testing pit
ulvite (ulv?spinel)
undignifies
volumetrical ratio
wear property
Zenobia
zone blanking