极圆盘式(反射望远镜)

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(223) / 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(224) / 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(358) / 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(301) / 评论(0) 分类 儿童英语小故事

A:How's work today? 今天工作如何? B:It's been a crazy day today.First, I was 1-hour late,you know,the traffic is really bad,Then I got yelled by my boss. 今天可真疯狂。我先是迟到了一

发表于:2019-01-03 / 阅读(170) / 评论(0) 分类 英语抢先学

dial [5daiEl]vt. 拨(电话号码) redial重拨 dialogue[5daiElC^] (美 dialog) n. 对话 diamond [5daiEmEnd]n. 钻石,金刚石;纸牌中的方块 diary[5daiEri] n. 日记;日记

发表于:2019-01-09 / 阅读(297) / 评论(0) 分类 英文语法词汇

[00:02.71] [00:06.33]Listen to This [00:09.68]Write the number [00:12.85]1.This computer isn't working. [00:17.24]You should turn it on first! [00:20.87]2.I want to use the Internet. [00:25.15]You should ask your parents to help you. [00:29.55]3.Is t

发表于:2019-01-09 / 阅读(376) / 评论(0) 分类 北师大版小学英语六年级上

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(268) / 评论(0) 分类 Weekender

[0:0]discourage disgust disk dismiss [0:46.4036]disorder display disposal dispose

发表于:2019-01-16 / 阅读(245) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

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(241) / 评论(0) 分类 英语新闻

Well, that's not exactly the story, because the problem was that Parliament delayed and delayed releasing that data, 呵呵,但我讲述的并不是很完整的故事。因为问题在于,议会不断地拖延公布这些信息, and then they t

发表于:2019-02-13 / 阅读(210) / 评论(0) 分类 TED演讲国际问题篇

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(199) / 评论(0) 分类 环球英语 Spotlight

ROBERT SIEGEL, HOST: These days, there's very little you can't find on the World Wide Web, but we have a story now about one important piece of the Web's own history that has gone missing, and no search engine will find it. NPR's Geoff Brumfiel repor

发表于:2019-02-16 / 阅读(238) / 评论(0) 分类 英语语言学习

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(209) / 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(192) / 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(172) / 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(200) / 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(261) / 评论(0) 分类 英语新闻

PC:个人计算机Personal Computer CPU:中央处理器Central Processing Unit CPU Fan:中央处理器的散热器(Fan) MB:主机板MotherBoard RAM:内存Random Access Memory,以PC-代号划分规格,如PC-133,PC-1066,PC-2700 HDD:硬

发表于:2019-02-18 / 阅读(254) / 评论(0) 分类 实用英语

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(229) / 评论(0) 分类 环球英语 Spotlight
学英语单词
accessory nerveinjury
Adams' position
address transformation
alla breves
ambient water quality
amyl carbamate
ascending node time
athri
auditory duct
beach break
betke
biological response modifiers
bovine growth hormone
carcinoma in situ of endometrium
circus act
cocksmanship
cole albert porters
composite duct
contract
Convention on International Combined Transport of Goods
copyingpress
couch potato
cowleeches
cutter-creaser
Datadian
deracialises
diaschistite
dicasteries
disbound
disdained
earthstars
egg transfer
embrapa
encranial
evaluation strategy
exttaction water
float centering
fluid capacitor
fluorescein-labeled
fore-body waterlines
friction height
girella
greased lightning
hemathlophorus formosanus
hostellers
hot spring scenic spot
hydrogel
hypocellular
ilmenite crystal structure
insularizing
Jarjavay's ligaments
Kamyshlov
katsaps
labour-sharing
lactyl-para-phenetiden
liquefacients
low pressure rubber hose
magnetic traveling crane
mawby
McBurney's sign
measham
methylycaconitine
Montreal Metropolitan Community
multi-slide forming machine
neuroelectrical
Nicholas Brothers
nonlinear computing element
object sensation
Offer Subject Open
oneironosus
optical orientation device
osteameba
p'o lo m?n tui
phaserotation relay
pictute
pini
podzol soils
point contact semiconducting diode
port elevator
product-market scope
raw dogging
rectovestibular fistula
reference direction of motion
reverse-current circuit breaker
rhythmic structure
rohrs
seek legal advice
silicon sulfide
single-sided single-density diskette
sisyphus
small-cabin system
soda biscuits
sodcasts
spectrazonal system
surface temperatur
surprise surprise
tape unit
theory of analytic functions
thoumi
trf (tuned radio-frequency)
Unpenji-san
yawe