蟹状星云
词型变化:名词复数形式 : crab nebulas

I Do a Lot of Office Fishing by Richard Salmon Some years ago, I started to look at the stars through high-powered binoculars and began reading books written by astronomers for people like me. I became an entranced stargazer for a while. The men who

发表于:2018-11-30 / 阅读(203) / 评论(0) 分类 英语励志美文精华

Lesson 32 Galileo reborn 伽利略的复生 First listen and then answer the following question. 听录音,然后回答以下问题。 What has modified out traditional view of Galileo in recent times? In his own lifetime Galileo was the centre of v

发表于:2018-12-08 / 阅读(727) / 评论(0) 分类 新概念英语第四册

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发表于:2019-01-02 / 阅读(334) / 评论(0) 分类 科技之光

This is Scientific American's 60-Second Science. I'm Steve Mursky. Got a minute? Orbiting around stars far far away is sand. Astronomers have found sandy particles circling a pair of stars about 2,400 light years from us. And they think they might be

发表于:2019-01-08 / 阅读(197) / 评论(0) 分类 Scientific American(三)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 Scientific American(七)月

反射星云是靠反射附近恒星的光线而发光的,呈蓝色。反射星云的光度较暗弱,较容易观测到的例子是围绕着金牛座M45七姊妹星团的反射星云,在透明度高及无月的晚上,利用望远镜便可看到

发表于:2019-01-08 / 阅读(277) / 评论(0) 分类 托福英语

shrimp crab 不管是英文还是中文,人们往往用动物的名称来形容人,例如骂人的时候说某人像猪,像狗,或者赞扬某人鹤立鸡群等。美国人有时把人形容为像

发表于:2019-01-11 / 阅读(204) / 评论(0) 分类 美国习惯用语

Walk straight,said a mother crab to her daughter,stop dragging yourself sideways all the time. Mother,replied the daughter,just show me how.If you walk straight yourself I will copy you. Don't expect people to do things you would not do

发表于:2019-01-11 / 阅读(154) / 评论(0) 分类 趣味英语

The Aeneid by Virgil 《埃涅阿斯纪》维吉尔 Mark first read the Aeneid while he was studying Latin in high school, and he recountedthe story of Aeneass quest and his desire to build a city that, he said, quoting the text in English, knows no

发表于:2019-01-17 / 阅读(143) / 评论(0) 分类 阅读空间

Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing industrial zone within our galaxy where the elements from which our world is made or manufactured. Wh

发表于:2019-01-22 / 阅读(127) / 评论(0) 分类 自然百科2011年

Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing industrial zone within our galaxy where the elements from which our world is made or manufactured. Wh

发表于:2019-01-22 / 阅读(146) / 评论(0) 分类 自然百科2011年

Could these be the neutron stars predicted by Z? astronomers nicknamed them pulsars and immediately set their telescopes searching for further clues about them, just a year later, they found one, in the perfect place to put Z's theory to the test.In

发表于:2019-01-23 / 阅读(153) / 评论(0) 分类 探索与发现2015年

The reason we can be reasonably confident that such an event won't happen in our corner of the galaxy, Thorstensen said, is that it takes a particular kind of star to make a supernova in the first place. 索尔斯坦森说,有理由相信,这种事

发表于:2019-01-29 / 阅读(163) / 评论(0) 分类 万物简史

The Aeneid by Virgil 《埃涅阿斯纪》维吉尔 Mark first read the Aeneid while he was studying Latin in high school, and he recounted the story of Aeneass quest and his desire to build a city that, he said, quoting the text in English, knows no

发表于:2019-02-01 / 阅读(179) / 评论(0) 分类 阅读空间

Chinas space program has become the first to land a spacecraft on the so-called dark side of the moon. The landing on Thursday brought the country closer to its goal of becoming a space power. The China National Space Administration said the landing

发表于:2019-02-06 / 阅读(150) / 评论(0) 分类 2019年VOA慢速英语(一)月

编者按: 我的存在有何意义?我也好,我的民族也好,我的世界也好,我们的存在能起什么作用呢? 我生命的旅程向何处延伸,这个问题真的重要吗?是谁主宰着整个宇宙,他在想些什么呢?

发表于:2019-02-11 / 阅读(151) / 评论(0) 分类 英语名篇背诵

Shortly after Copernicus, in the 1580s, an Italian friar, Giordano Bruno, 哥白尼死后不久,在十六世纪80年代,意大利修道士焦尔达诺布鲁诺提出, suggested the stars were suns that likely had their own planets and that the

发表于:2019-02-13 / 阅读(192) / 评论(0) 分类 TED演讲教育篇

How old is the Earth? 地球的年龄有多大? Well, by counting the number of isotopes in a sample of rock that's undergone radioactive decay, 通过对岩石样品中正经历着放射衰变的同位素计数, geologists have estimated the Ear

发表于:2019-02-13 / 阅读(156) / 评论(0) 分类 TED演讲教育篇

It looks like a hand of God reaching out into the cosmos, but NASA says the display is caused by a young and powerful pulsar. Taken by NASA's Chandra X-ray observatory from it's orbiting 360 miles above the Earth, the recently released photo of Pulsa

发表于:2019-02-16 / 阅读(191) / 评论(0) 分类 实用英语

Now as we pull away from this world -- we're going to keep pulling away from the star now. 现在,我们将视线从这个世界里移出来--我们从这个星球移出来了 One of the things that always frustrated me a little bit about astronomy

发表于:2019-02-21 / 阅读(143) / 评论(0) 分类 TED演讲教育篇
学英语单词
a shipyard
abdormal delivery forceps
adrenotrophin
antidotical
automobile battery
barrelage
beta-serolysin
body of caecum
Castellanella evansi
caudaside
centreless grinder
cleystaff
coho oscillator
computer self-learning
crib weir
cutaneous horn of penis
dedolomitisations
degenerative reaction of facial nerve
dental lisp
design factors
double-ruff
East Granby
electrothemal meter
embarrass with
explosive oscillation
external vocal sac
farm capital construction
feedingstuff
field overlay
filthy
fore-and-aft distance between two ships
germaines
glass eye
Gornji Milanovac
grey model
Grossenaspe
healthy participant effect
heggle
height of fundamental triangle
hobilar
horseload
Háifoss
in the years to come
inserted chaser die
intercontinental baseline
Le God
mammalians
monostrophics
morphiomaniac
musculus cricoarytenoides posterior
nadai
naked cluster
natural restriction
necromass
nimbrin
of doing
on the film
operation period
palatine vein
panlobular
para-methoxyamphetamine
partially ordered product
paste reactor
pithomyces graminicola
Plasmodi equium
preluder
preventing collisions
primatological psychology
promo code
prostigmine
pseudo gravity
radio-frequency chart
retention of class
reverse lock magnet
rotating bath
rubble outerskin
senses of movement
shirt collar ironing machine
shoe leathers
simple plastic flow
size queen
sizing treatment
SLAI
sliver
specific gravity cell
square wave voltage generator
stable flow
strike a set
tendre
the best of five
ties-in
trig list
trimercuric orthophosphate
twist-foot
uniaxial anisotropy constant
vapor engine
vegetal pole
vein graphite
water lift
whoreship
xperiments
Zadornov