[天] 白矮星

I Regain Confidence By Li Jun (李军青岛海洋大学) (2001年11月下旬,在上海举行的第七届21世纪爱立信杯英语演讲比赛华东地区比赛中获得第一名) 专家点评:本演讲语言较流畅,从具体事件人手,将主

发表于:2018-11-29 / 阅读(123) / 评论(0) 分类 英语演讲

1. M: Did you go to the match on Saturday? [00:02.69]W: No,I listened to the commentary instead. [00:05.43]It sounded pretty exciting,I must say. [00:08.33]Q: What are they talking about? [00:11.52]2. M: Two six two four three double four.Charles Far

发表于:2018-11-29 / 阅读(188) / 评论(0) 分类 决胜四级听力必备

[00:02.41]Unit 1 School life [00:06.83] Self-assessment [00:09.30]Let's act. Snow White and the Seven Dwarfs (I) [00:18.63]Mirror! Mirror! [00:20.68] Magic mirror! [00:22.80]Good morning, dear Queen! [00:25.47]Am I beautiful? [00:27.52]Yes, you are.

发表于:2018-12-13 / 阅读(102) / 评论(0) 分类 新路径小学英语六年级上册(一起)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Most plants capture sunlight. And the results are usually green. Because in photosynthesis, plant chlorophyll uses wavelengths of blue and our sun's ab

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(四)月

For astronomers who study the large-scale structure of the universe, dwarf galaxies have proven quite vexing. Because the leading model of cosmology has been unable to account for their relative lack of substance. Now scientists writing in the journa

发表于:2018-12-24 / 阅读(68) / 评论(0) 分类 Scientific American(一)月

Nion: She's pretty. Beith: And who's this? Is this an errant apprentice or captive①? SnowWhite: The man is helping me. Gus: We should kill them both. Duir: He's caused us nothing but trouble. Gus: Skewer him and leave her to rot②. I don't like ki

发表于:2018-12-28 / 阅读(50) / 评论(0) 分类 跟着美剧练发音

Why Dwarf Galaxies Lack Star Power In a study in the journal Nature, researchers show that the relative lack of star density in dwarf galaxies need not conflict with standard cosmological models if you include the blast effects of supernovae. Karen H

发表于:2019-01-02 / 阅读(96) / 评论(0) 分类 60秒科学

US Space Agency Expands Search for Distant Planets Able to Support Life The search for worlds orbiting distant stars will intensify in the coming weeks when the American space agency NASA launches a spacecraft. Scientists hope the spacecraft will enl

发表于:2019-01-03 / 阅读(59) / 评论(0) 分类 2018年VOA慢速英语(四)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. To many who stare up at the heavens, the stars may seem simply uncountable. Of course that's not the attitude of astronomers. But they've made a discov

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. If we want to learn more about our planet and other planets in the universe, we can get some help from stars that are long dead and gone. Thats what U.

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? You could think of it as the real dancing with the stars. Two white dwarf stars have been found twirling around each other to make a complete orbit in less than every 13

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(七)月

优秀英语演讲稿范文---我重树信心 I received a devastating blow to my self-confidence in the first interview of my college years. I applied to be a host in our Student Acting Troupe and felt confident that I would be accepted. But one of

发表于:2019-01-08 / 阅读(64) / 评论(0) 分类 英语演讲

By David McAlary Washington 10 January 2006 Before you continue thinking about our Milky Way galaxy as a peaceful, spiral disk of stars slowly rotating through the heavens, consider this: It is hungri

发表于:2019-01-11 / 阅读(139) / 评论(0) 分类 2006年VOA标准英语(一月)

One of the puzzles about our galaxy is that we know that it's had stars forming continuously for about the last ten billion years. But at the rate/ it's eating up its gas now, it's forming new stars, it should burn out that gas soon, should run out o

发表于:2019-01-22 / 阅读(61) / 评论(0) 分类 自然百科2011年

The enigma of the white dwarf has been resolved. Scientists have discovered how the vast majority of the stars, including our own sun, would end their days, as the white dwarfs gently fading into the darkness of the universe. But not all stars go so

发表于:2019-01-23 / 阅读(101) / 评论(0) 分类 探索与发现2015年

> 43 存在于恒星与行星间的黑色物质 DATE=5-2-01 TITLE=SCIENCE REPORT - Dark Matter BYLINE=Jill Moss (Start at 58

发表于:2019-01-30 / 阅读(67) / 评论(0) 分类 科技之光

Science and technology 科学技术 Table-top astrophysics 桌面上的天体物理学 How to build a multiverse 怎样构建多元宇宙 Small models of cosmic phenomena are shedding light on the real thing 微小模型逐步揭开宇宙中各种现象

发表于:2019-02-02 / 阅读(42) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Table-top astrophysics 桌面上的天体物理学 How to build a multiverse 怎样建立一个多元宇宙 Small models of cosmic phenomena are shedding light on the real thing 宇宙现象的一些小模型反映了

发表于:2019-02-02 / 阅读(125) / 评论(0) 分类 经济学人科技系列

Some Habitable Zone Exoplanets May Get X-Rayed Out X射线可能照射到一些可居住外行星区域 As astronomers hunt for habitable, Earth-like worlds, one popular place to look is around M stars, a type of red dwarf. Couple reasons for that: 当

发表于:2019-02-14 / 阅读(56) / 评论(0) 分类 2018年科学美国人4月

Webersat 韦伯卫星美国小型无线电照相卫星 West Ford 西福特美国广播通信试验卫星 Westar(West Star) 西联星美国国内通信卫星 White Cloud 白云美国海洋监测卫星 W

发表于:2019-03-02 / 阅读(115) / 评论(0) 分类 英文语法词汇
学英语单词
achroous
aerodynamic card
Afyon
alkali telluride photo cathode
anti-immigrant
bartas
bickerings
BMH
body with cord
bolting jumbo
bosshart
brine cock
burying vessel
cadinan
Charpak-Massonet current distribution system
chills and fever
Cokies
compactgrain
congressional committees
cooktove
craigies
craneman's house
creep activation energy
cygnus columbianuss columbianuss
decelerotor
degree of turbocharging
diplo-albuminuria
dorsosacral position
double-checkings
efferent vessel
eigensystems
eimeriosis
ELHILL
exilim
extra linguistic
extrusion grade
fast powder
fixed-head t square
fleadhs
fluid gauge
formal party
Gualou Xiebai Baijiu Tang
heritiera macrophyllas
hot concoct
hypnosis
inrounding
inverted bucket trap
ipecacuanhin
joint motion
justification by faith
labelled element
large ballast undercutting cleaners
lee distance
Lemoine hexagons
lettewys
Magnae Cartae
marriage statistics
microdetection
mill gondola
mitrinermine
molecular organic geochemistry
more attractive
most vital
mountebank
musculi lumbricales pedis
Neillia gracilis
Nova Siri
overactive odontogenesis
overshaken
p'o ch?n tzu
partition functions
pennine chains
perfect delay convention
peritectic change
plate produced from coils
precise interruption
procedure of trial production of new products
publishing house
putridae epixylophytia
realistic type
record room
rice(bran)oil
routine access
runway end
Sark lark
scrap baling maching
sheep' shank
silky tamarin
smelter injury
specific risk
steering cutout manifold
stoping area
sudanophobic unit
Tanch'ǒn
trithiocarbonic acid
ulcerate
Ulster Scots
uranolepidite
Wapno
wintermyer
yevtushenkoes
youthfulness