时间:2019-01-10 作者:英语课 分类:北师大版高中英语模块7(选修)


英语课

[00:01.51]Einstein had already become world- famous

[00:04.21]when a young ex-lawyer,

[00:06.06]returning from the First World War,

[00:08.04]started work at the Mount Wilson Observatory 1

[00:10.39]in California.Using the most high-powered

[00:13.50]telescope of the time,he began the long slow

[00:16.57]process of exploring our galaxy 2.

[00:19.48]Edwin Huble was about to make astronomy's

[00:22.03]greatest breakthrough of the century.

[00:24.43]He discovered nebulae

[00:26.67]which were in fact galaxies 3 like our won,

[00:29.28]millions of light years away from us,

[00:31.96]which proved that the universe was vastly

[00:34.16]larger than had previously 4 been thought.

[00:36.91]Then,Hubble proved that the universe

[00:39.05]is actually expanding,

[00:40.95]and that the futher away galaxies are,

[00:42.93]the faster they move.

[00:45.50]In 1929,another far-reaching finding

[00:48.43]was made by the son of a Scottish shepherd.

[00:51.18]Before he went on holiday,

[00:52.98]Alexander Fleming left a dish

[00:54.77]with bacteria in it near the window

[00:56.93]of his laboratory.When he came back,

[00:59.14]he was just about to throw the dish away

[01:01.41]when he noticed something our of the ordinary.

[01:04.28]He double-checked and saw a blue mould

[01:06.52]in the dish around

[01:07.78]which the bacteria had been destroyed.

[01:10.76]This blue moud was in fact the natural

[01:13.41]form of pencicillin which Fleming realized

[01:15.85]was an effective way of killing 5 bacteria.

[01:17.72]



n.天文台,气象台,瞭望台,观测台
  • Guy's house was close to the observatory.盖伊的房子离天文台很近。
  • Officials from Greenwich Observatory have the clock checked twice a day.格林威治天文台的职员们每天对大钟检查两次。
n.星系;银河系;一群(杰出或著名的人物)
  • The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。
  • The company has a galaxy of talent.该公司拥有一批优秀的人才。
星系( galaxy的名词复数 ); 银河系; 一群(杰出或著名的人物)
  • Quasars are the highly energetic cores of distant galaxies. 类星体是遥远星系的极为活跃的核心体。
  • We still don't know how many galaxies there are in the universe. 我们还不知道宇宙中有多少个星系。
adv.以前,先前(地)
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
n.巨额利润;突然赚大钱,发大财
  • Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
  • Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。
标签:
学英语单词
acera
ADACC
antitubercular agent
APRS (automatic production record system)
balance lug
ball cage
banks is.
baryta coated paper
begartered
benzer
bhattacharya
bill of lading freight
bloemspruits
boring machines
breckon
carbon dioxide refrigerating machine
churchill downss
cleaning cell
Cnephia
common mode input
convergency of symptom
country rock alteration
cut price offer
cystoscopic(examination)
D and D
Dahomey
decentralization of purchasing
delitos
dicolic
digestibleness
double head latch needle
Dover Castle
electronic time relay
facia
fern allies
flat iron
fleet streets
fraternal birth order effect
galumphing
gear driven pump
gross line
hughied
hybrid vigour
hydrated electron dosimetry
ICAM Definition Method
individual study
infeoffment
insulated value
justificatory
Kanniyakumari
knokke (knocke)
kokodo
largeend
lead by the nose
mallenders and sallenders
measure of area
method of reverse osmosis
Mohawk Valley
multi-drum winch
Nefretete
normal activity
onie
ozerov
panic grasses
parity drive
persevere in
platen
positive conditioned stimuli
pressure calibration
progressive wave motion
prolonge
pulse-free signal
quadrature hybrid
radiation measurement assembly
Radix motoria
read noise
red-graier
redioimmunoelectrophoresis
relay characteristics
rest-home
rototranslational
Salix opsimantha
scan image
scaningmgcroscop
screen-gri
scroll sheet liner
seable
sennin
spanne
strongly monotonic function
subsistence theory of wages
Sunipia bicolor
surrebutted
tea makers
Tenebrionoidea
thermometer correction
time fuse
travers-tile
tropical plant
undergeneralizing
working fluid heater efficiency
xylota formosana