时间:2018-12-30 作者:英语课 分类:托福听力短文


英语课

(woman) Most people think of astronomers 2 as people who spend their time in cold observatories 3 peering through telescopes every night. In fact, a typical astronomer 1 spends most of his or her time analyzing 4 data and may only be at the telescope a few weeks of the year. Some astronomers work on purely 5 theoretical problems and never use a telescope at all.


You might not know how rarely images are viewed directly through telescopes. The most common way to observe the skies is to photograph them. The process is very simple. First, a photographic plate is coated with a light-sensitive material. The plate is positioned so that the image received by the telescope is recorded on it. Then the image can be developed, enlarged, and published so that many people can study it.


Because most astronomical 6 objects are very remote, the light we receive from them is rather feeble. But by using a telescope as a camera, long time exposures can be made. In this way, objects can be photographed that are a hundred times too faint to be seen by just looking through a telescope.



n.天文学家
  • A new star attracted the notice of the astronomer.新发现的一颗星引起了那位天文学家的注意。
  • He is reputed to have been a good astronomer.他以一个优秀的天文学者闻名于世。
n.天文学者,天文学家( astronomer的名词复数 )
  • Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
  • Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪,为什么只有土星有光环。 来自《简明英汉词典》
n.天文台,气象台( observatory的名词复数 )
  • John Heilbron, The Sun in the Church: Cathedrals as Solar Observatories, 3-23. 约翰.海耳布隆,《教会里的太阳:教堂即太阳观测台》,第3-23页。 来自互联网
  • Meteorologists use satellites, land observatories and historical data to provide information about the weather. 气象学家使用卫星、上天文台和历史资料来提供有关天气的信息。 来自互联网
v.分析;分析( analyze的现在分词 );分解;解释;对…进行心理分析n.分析
  • Analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据,暴露出的问题甚至更大。 来自辞典例句
  • He undoubtedly was not far off the mark in analyzing its predictions. 当然,他对其预测所作的分析倒也八九不离十。 来自辞典例句
adv.纯粹地,完全地
  • I helped him purely and simply out of friendship.我帮他纯粹是出于友情。
  • This disproves the theory that children are purely imitative.这证明认为儿童只会单纯地模仿的理论是站不住脚的。
adj.天文学的,(数字)极大的
  • He was an expert on ancient Chinese astronomical literature.他是研究中国古代天文学文献的专家。
  • Houses in the village are selling for astronomical prices.乡村的房价正在飙升。
学英语单词
ability identification
aerobics-exercise
Alcolea del Pinar
anomaly of character
anti-apartheidism
antiestrogenic
at the drop of a hat
axial coil
Baasmo
be abhorrent to
bilge plug
biopattern
blast furnace top
blazing stars
bread beetle
breade
brittlestars
calycanthuss
cannon-shot gravel
case studies
cetrelia olivetorum
Clut-foot
CofB
constant output pump
copperclad steel wire
curatorship
departments of chemistry
depolarization current
diamondwise
dissolutions
electron oscillograph
equable
estate by intestacy
Event study
extender index
fan shengzhi
floor type sensitive drill press
fog target
full duplex facilities
gateline
gerontocrat
gingerest
Gogh, Vincent van
groom
half-a-mile
high-rise structure
Hollandsch IJssel
hot rolled steel bar
hylobates klossi
i-nocked
in july
internal cylindrical honing machine
ionized donor
k?pen's climate classification
kaiserswerths
keeping pace
Kirchweyhe
koranization
kundrymycin
Kunovat
last respects
Liliopsida
line-by-line analysis
load structure
long oil
Macaranga rosuliflora
MacDonnell
Madhuban
MaxDB
mess-mates
microcapillary hematocrit method
not fit to be touched with the end of a bargend pole
novmir
orbital vein
overtaken vessel
patience of a saint
quick-release harness
restriction efficiency
rotor field spider
screen-packed bed
smell round
stenomelania tortuosa
streptococcus vaccine
switch turn-off
synchronous mode
take-off the line
tea trees
teleologically
telephone network numbering plan
television acoustics
the how and the why
thirring model
trespassers
trunk presentation
turret fuse box
unconditional operations
value of division of level
Wallhausen
waste grinding machine
willany
wood