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
affectional preference minorities
argentaffine grannles
arsey
asphalt pavement
astrosclereid
batcha
best-evidence rule
bills of lading
birchy
blue phone line
cellular ceramics
cheeseball
Colburn, Irving Wightman
constant damping locus
container's lock
contradicts
counter-clerk
cunnanes
dacryostegma
dense in itself
drawbridge coupler
eburneous
electrometers
electronic countermeasure (ecm)
emeraldines
epinephrine inhalation
exercise a claim
flux-cutting law
folding hatch cover
folkcraft
forcipiger flavissmus
fractional-horsepower asynchronous motor
funneled pipe
gentle manners
ground penetrating radar
high-speed-rail
Hilliard's lupus
housing centre
IAATM
idiopathic myocardiopathy
impotency
inserted coloumn
intracanalicular fibroma
Irula
Jewniverse
Johari window
kirinensis
laforgue
leakoff-type shaft seat
long-vowel mark
lophosteon
low pressure fan
Manakau
manganese ion
Marmarica
monopsonists
monster.com
N-truss
naphthene-base crude (petroleum)
Noorden treatment
offset disk harrow
operation vehicle for contact wire
optical journal reader
oregon moonstone
orleans-born
out-of-hours trading
parsva
Percutanous
philosophorum
phosphorial
phosphoryl
prefiring action
prehjistoric
premium
presbyopia lenses
preshow
propazolamide
rolling-ball planimeter
scientific empiricism
seedling blight
sphenomorphus indicus
spinach with poached egg
spring capacity
stupre
substantialised
superconducting microscope
systematics of isotope abundance
T-bandages
tea-chests
Tomb of the Unknown Soldier
total government revenue
tower portal of bridge
trispectra
turrid
unit green area
usui
vertical incidence transmission
vervet monkey disease
VF selective calling
waffling on
whale-watch