成片永冻层

SCIENCE IN THE NEWS - Looking Inside the Brains of 'Lucid Dreamers' FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we tell how warmer weather in the Arctic could speed up c

发表于:2018-12-01 / 阅读(774) / 评论(0) 分类 2011年VOA慢速英语(十二)月

[00:00.00][s],[ ][ ] [00:38.61]sea/sheet/chicken [00:42.66]Exercise One: Word Conparison [00:47.62]Listen to the following words from your tape and repeat. [00:52.98]sip ship sane shane watched washed [01:01.23]lass lash least leashed chin [01:09.09]

发表于:2018-12-03 / 阅读(248) / 评论(0) 分类 掌握英语发音

现在完成进行时(The Present Perfect Continuous Tense)表示由过去某时持续到现在的动作,由have(has)been+现在分词构成: It has been raining for three hours. 一连下了三个钟头的雨。 She has been working the whole mo

发表于:2018-12-18 / 阅读(145) / 评论(0) 分类 英文语法词汇

过去完成进行时(The Past Perfect Continuous Tense):表示过去某时前一直在进行的动作,由had been+现在分词构成: I asked him what he had been doing. 我问他一盲在干什么。 He had been working all day and was very

发表于:2018-12-18 / 阅读(125) / 评论(0) 分类 英文语法词汇

If the world continues on a business-as-usual path, the Intergovernmental Panel on Climate Change predicts that there is a fifty-fifty chance the temperature will exceed 5 degrees by the end of this century. This increase may not sound like much, but

发表于:2018-12-18 / 阅读(115) / 评论(0) 分类 TED演讲教育篇

[00:10.06]Gehrig continued to improve as a player. [00:14.05]By 1924, pitchers for opposing teams were having bad dreams about Lou Gchrig and Babe Ruth. [00:23.04]Ruth hit sixty home runs that year. [00:26.36]Gchrig hit forty seven and won the Americ

发表于:2018-12-26 / 阅读(182) / 评论(0) 分类 美国英语听力80篇

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(182) / 评论(0) 分类 火星生命

Melting Arctic Could be Major Source of Greenhouse Gases The melting arctic permafrost could release methane-producing microbes with the potential to accelerate climate change, according to a new study published in Nature. Lead author Janet Jansson,

发表于:2019-01-04 / 阅读(137) / 评论(0) 分类 VOA标准英语2011年(十一月)

北极冰带的融化将加速全球变暖进程 DATE=2/16/01 TITLE=SPECIAL ENGLISH ENVIRONMENT REPORT - Arctic Permafrost Melting BYLINE=Cynthia Kirk (Start at 59

发表于:2019-01-04 / 阅读(122) / 评论(0) 分类 自然探索

The New York governors communications chief is resigning over the political scandal overshadowing the states top office. In a statement today Peter Hoffman says that given the recent developments, he had to quit. Governor David Paterson is under pres

发表于:2019-01-08 / 阅读(149) / 评论(0) 分类 2010年NPR美国国家公共电台3月

[ti:UNIT 2 On the Train Lesson 16] [0:00.641]Unit 2 [0:03.070]On the Train [0:05.053]Lesson 16 [0:07.484]Unit Review [0:09.731]Ⅰ. [0:11.044]Building Your Vocabulary [0:14.048]A. [0:14.982]Fill in the blank with the proper word. [0:17.959]The first

发表于:2019-01-09 / 阅读(236) / 评论(0) 分类 河北教育初中英语(初中起点)七年级下册

By Frank Ling Washington 07 August 2006 New research shows that global warming might be worse than expected because of melting permafrost, permanently frozen soil, which can release the greenhouse gas, carbon dioxide. Computer models predict higher

发表于:2019-01-11 / 阅读(166) / 评论(0) 分类 2006年VOA标准英语(八月)

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(108) / 评论(0) 分类 VOA标准英语2011年(八月)

SCOTT SIMON, HOST: Most native villages in the western part of Alaska are built on permafrost. That's a thick layer of frozen soil. And with climate change, the permafrost has started to thaw. In one town, this means their cemetery is melting. People

发表于:2019-01-16 / 阅读(126) / 评论(0) 分类 2017年NPR美国国家公共电台12月

DAVID GREENE, HOST: Come with us on a journey inside the Earth. Well, inside a special layer in the Earth. A quarter of the Northern Hemisphere is covered with what's called permafrost, and for the first time in centuries, the permafrost is beginning

发表于:2019-01-16 / 阅读(145) / 评论(0) 分类 2018年NPR美国国家公共电台1月

Key Sentences(重点句子) 146.The connection was bad. 通话情况很糟。 147.There was a lot of echo and I couldn't hear well. 回音太多,我听不清楚。 148.I'll connect you agian. 我再为您接通一次。 149.I've just

发表于:2019-02-07 / 阅读(135) / 评论(0) 分类 实用英语

Anthrax Outbreak In Russia Thought To Be Result Of Thawing Permafrost STEVE INSKEEP, HOST: Russia is fighting a mysterious outbreak of disease. Dozens of people are hospitalized due to anthrax. Yes, anthrax, the bacterial infection so deadly that cer

发表于:2019-02-13 / 阅读(130) / 评论(0) 分类 2016年NPR美国国家公共电台8月

The chains of habit are generally too small to be felt until they are too strong to be broken. - Samuel Johnson Editors note: This is a guest post from Mary Jaksch of Goodlife Zen. Have you ever had problems establishing a new habit? Maybe I should a

发表于:2019-02-14 / 阅读(179) / 评论(0) 分类 阅读空间

Have you ever thought why there are very few great people? I think there is probably only one great person out of 10,000 at best, and most probably much less than that. But why? Most people want to be great, right? Why are there only very few of them

发表于:2019-02-18 / 阅读(151) / 评论(0) 分类 英语美文

Key Sentences(重点句子) 146.The connection was bad. 通话情况很糟。 147.There was a lot of echo and I couldn't hear well. 回音太多,我听不清楚。 148.I'll connect you agian. 我再为您接通一次。 149.I've just

发表于:2019-03-11 / 阅读(248) / 评论(0) 分类 实用英语
学英语单词
absus
Aguiar, R.
alcohol acids
algebraic extension field
amyloid neuropathy
anaerobism
antihydrophobics
artist's model
bacilloscopies
backward lobe
base emitter cut off current
biligram
biomagnetics
blood transfusion
Caedmon
Casayr, Ras
cessement
chessum
chronoscope
cieluv colour difference
class b ip address
coagulopathy
cockerpoo
common projectile
convertible paper money
Curculigo orchioides Gaertn.
cylinder-heads
death in line of duty
diddlies
direct access capability
dyreson
eigenvalue of maximum
electron beam density
epicranial
Federal Bench
fine-powder bed
flashin
for refining lead kettle
fractionating crystallization
full-sibs
grandfield
gypsum for cement
IDP (integrated data processing)
Indian Council of Agricultural Research
insaniate
interocular
Keenapusan I.
key-fruit
ladysmith
Laem Ngop
Malansac
mean time between replacement
Meliosma flexuosa
microgliacyte
minister-without-portfolio
mountain clubmoss
national guards
nationwide toll dialing
neovessels
northstars
Orleanist
paddlewheel streamer
palagonitic ash
Pantherism
paradigm of programming
payment credit
plot combine
pole vaut
potyvirus cowpea aphid-borne mosaic virus
predations
preferabilities
proximal onlap
put this show on the road
pyrimetamine
quasi-particle representation
query-level interface
raisa
ratification of treaties
real-time control machine
removing carbon
rimadyl
robusta
rynk
Saxo, Grammaticus
scirpusin
seizure
shaunta
sisyrinchium iridifolium
slager
spermatozoa insemination methods
spine of ischium
sulfur isotope
surface colonry
tape perforator
Tarcoola
tetrapody
uterogobulin
vey-
water baffle
well-kept
wiches
Zimandu Nou