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(126) / 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(649) / 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(279) / 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(128) / 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(105) / 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(216) / 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(147) / 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(105) / 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(87) / 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(67) / 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(90) / 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(89) / 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(96) / 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(79) / 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(80) / 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(91) / 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(80) / 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(91) / 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(127) / 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(83) / 评论(0) 分类 TED演讲教育篇
学英语单词
a posteriori comparisons
a Triton of the minnows
advanced function presentation data stream
advising charge
ampelopsin
anterior sacral plexus
arrive on
atomic dipole
atticism
Aulosteges
balance chart
bhusa
biasion
camall
carbonium-ion polymerization
Cassano delle Murge
chirrie
cobaltic sulfatopurpureo salt
color velocity gaging
cookieholics
crime statistics
cyanouracil
demi-lancers
demotists
development anatomy
developmental expense
diagonal mark
diddies
doctorspeaks
electronic countermeasures malfunction
encysted stage
express paid by post
exterior eruption
external environment
eyeglasses
FCL to LCL Delivery
Ferroknebelite
ficinoes
Filaria palpebralis
film hybrids
free growing
gadolinium oxychloride
garlow
gastronomical
gd-vii virus
glaucochroite
globular-chain crystal
hand-knitteds
Hill and Adamson
Hoa Binh, Tinh
hoising
icteruss
iekozid
ill-humo(u)red
intermediate block check
laetmogonids
lenser
m. tibialis posterior
machine aided translation
Malombe, L.
mikelson
musselss
noncontiguousness
overflame
peerle
Pescari
planker
plastiform
plunger cylinder
polymitosis(beadle 1933)
positive afterpotential
predicate calculus with identity
primitive ependymal layer
rainshaft
ram blowout preventer
range of cutter spindle speed
resident compiler
running balance
rutherfordium
Satureia
serial-killing
Sheets in New Worbook
Streptothrix putridogenes
stroboscopic effect
subscriptively
Succoth-benoth
surface heat exchanger
thermoelectric photometry
tigges
toasted skin syndrome
trierarchies
tuning-fork transducer
Ufford
untrackable
vapo(u)r diffusion pump
vertical solution
voting element
wet-dry
whirl nozzle
Wilsoniella
winds