外网状层

Seeking Our Outer Space Home One hundred years ago, walking on the moon was only a dream -- it is almost impossible to imagine what might happen in the next 1)millennium. We know that one day we will

发表于:2018-11-28 / 阅读(217) / 评论(0) 分类 疯狂英语2004年

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(173) / 评论(0) 分类 听一分钟英文-O

auricular, adj 耳(状)的;听觉的 【例】an auricular tube [医]听诊器 【源】源自拉丁语 auricula耳 【区】particular(adj 特殊的),一起记。你们不觉得耳朵是最特殊的器官吗? 【参】aural(adj 听觉的

发表于:2018-12-04 / 阅读(167) / 评论(0) 分类 不择手段背单词

Grandfathers eyebrows raised in surprise as he watched his grandchildren and Rachel Cunningham climb onto the stage. They stood beside the podium. I hope this interruption is important, James Alden said. Its about Marks paper, Henry said. Mark sat up

发表于:2018-12-06 / 阅读(139) / 评论(0) 分类 59 The Outer Space Mystery

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(128) / 评论(0) 分类 Scientific American(四)月

M: Excuse me! W: May I help you? M: Yes, I'd like to send this book to France. W: Let me weight it first. That'll be 14 dollars. M: Can it go in an envelop? W: Of course, it's 4 dollars now. M: Do I need stamps? W: No, you don't. We use computers no

发表于:2018-12-26 / 阅读(101) / 评论(0) 分类 想聊就聊

Topics: Famous Americans-Charles and Ray Eames; The Black Fives Leagues and The Negro Baseball Leagues; inner and outer versus inside and outside; severely versus seriously Words: architecture fellowship experimental design form fitting plywood splin

发表于:2018-12-26 / 阅读(115) / 评论(0) 分类 美语听力 English Cafe

Healing Elbows And Eyeballs A scratch to the surface of your eye heals quite rapidly, often in a matter of minutes. But a surface scratch on your elbow takes days rather than minutes to heal. The reason for these different rates of healing is directl

发表于:2018-12-27 / 阅读(101) / 评论(0) 分类 英语时差8,16

Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? 有件事情我们总觉得理所当然:室温下把一些冰块放入水中,

发表于:2018-12-28 / 阅读(154) / 评论(0) 分类 初学者听力文摘精选

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(209) / 评论(0) 分类 英语课程学习计划和讲义

How Does Ice Cool Drinks? Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? Heat is a measure of molecular activity: the faster a

发表于:2018-12-31 / 阅读(92) / 评论(0) 分类 英语听力文摘 English Digest

Outer space is fascinating. Throughout history, human beings have looked up at the stars and wondered just what was out there. In this episode, Harp and Maura chat about a variety of topics relating to outer space. Would you like to take a trip to Ma

发表于:2019-01-01 / 阅读(136) / 评论(0) 分类 英语博客-北美风情

Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the

发表于:2019-01-02 / 阅读(209) / 评论(0) 分类 60秒科学

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson (Start at 1'04

发表于:2019-01-02 / 阅读(210) / 评论(0) 分类 科技之光

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 Scientific American(十)月

New Treatment Potential Found in Popular TB Drug Scientists say new insights into a common tuberculosis drug will make it possible to shorten the treatment period for patients infected with TB. The drug pyrazinamide is widely used in combination with

发表于:2019-01-14 / 阅读(178) / 评论(0) 分类 VOA标准英语2011年(八月)

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(168) / 评论(0) 分类 纯正英语一分钟

By Lisa Schlein Geneva 12 February 2008 Russia is warning of a new arms race if a treaty banning the deployment of weapons in outer space is not achieved. Russia and China have jointly presented a draft treaty to the U.N. Conference on Disarmament th

发表于:2019-02-01 / 阅读(132) / 评论(0) 分类 VOA常速英语2008年(二月)

一个句子中难免出现一两个生字。在这种情况下,不必马上查字典,只要根据上下文的关系,就可能猜测生字的意思了。 下面这些例子,值得大家参考: ⒈利用括号内的解释,如: ① The po

发表于:2019-02-05 / 阅读(167) / 评论(0) 分类 英文语法词汇

M: Excuse me! W: May I help you? M: Yes, I'd like to send this book to France. W: Let me weight it first. That'll be 14 dollars. M: Can it go in an envelop? W: Of course, it's 4 dollars now. M: Do I need stamps? W: No, you don't. We use computers now

发表于:2019-02-21 / 阅读(108) / 评论(0) 分类 英语口语
学英语单词
accumulative rain gauge
acupuncture of a point
adverse witnesses
aggravator
antigassing
antiparliamental
armor-clad switch
automatic fire mechanism
bales
bignonia chamberlaymii sims
borrowed current capital
bring something in
caisson base
capacity of returns
caprylic acid isoamyl ester
carrieth
cesium-vapor lamp
clawpiece
cluff bow
coastal area
combining library option function
completely self-protecting transformer
comportable
cough plate
creatureship
defaict
Eberhardtia
elect-ion
erroneous measurement
ethnographer, ethnographist
eurybathyal organism
external female pseudohermaphrodism
F-1358
false friend
first-ranks
free votes
fresh fruit or vegetables
fried shredded beef with onion
glazed tile facing
gluckstein
greenlets
high-frequency generator
hook bolt lock
hybrid enzyme
immersed water test
immuno-oncology
indiscriminatingly
inner circle
kainites
knorry
LCD types
Lindisfarne Gospels
logical development
LTU
Markham L.
Marshūn
Monochamus urussovi
neucleomorph
neurapophysis (pl.neurapophyses)
night curtain
non-neutrality of technology
null pickup
optimum burst correction code
osip mandelstams
past illness
postganglia
preamplifiers
prime liability on bill of exchange
reflectly
regio interscapularis
regulating device
reship
revved
rhizoma et radix cynanchi stauntoni
Salmo-calcitonin
shock-induced
short gyri of the insula
single-wedge compensator
Sivinskiy Rayon
sonechka
span wire storwage padeye
spinnin
ST_fish-reptiles-insects-and-other-animals_sea-fish
stairmastering
startle display
steptococcus sanguinis canis
stretched out
Strongyloides vulgaris
sulfated amyl oleate
Swissers
tar-board
ten-day reports
the silver streak
thecitis
top-seller
trichloro ester
triungulin stage
unamiability
variety preservation
woche
Wrangel Island
zoologer