时间:2019-01-22 作者:英语课 分类:自然百科2008年


英语课

 Since the US space program began in 1958, NASA has achieved much in the realm of space exploration. From lunar landings to voyages into the depth of our solar system, NASA has built a storied history.


 
        In the early days, space was a men's world. All that changed on June 18, 1983, when Sally Ride became the first American woman to rocket toward the heavens aboard the space shuttle Challenger. A Doctor of Physics, she was recruited by NASA as one of six female astronaut candidates for the shuttle program. While her first job was as a mission control communicator to orbiting shuttles, Sally Ride soon found herself in orbit during 1983's STS-7 mission. And although the Russian space program had sent women into space as early as 1963, Ride's journey into space was a first ever for the US. Aboard the shuttle Challenger, she served as a mission specialist, helping 1 deploy 2 two satellites and perform scientific experiments over six days. Shortly after her return, Ride reflected on what her journey into space meant.
 
      “That I was asked at a press conference just before our flight what I thought about being the first US woman astronaut, I was quoted to say that it was no big deal. What the astronaut meant to say was that, technically 3, as far as NASA's concerned it, was no big deal. On another level, the United States' sending a woman into space was a very important event for at least 53% of the population and I'm very proud of that.”
 
      Sally Ride re-adventured into space once more in 1984. And since that time others have become trailblazers as well. Physician-turned astronaut, Mae Jemison became the first African American woman in space during shuttle Endeavour's 1992 mission. During orbit, she performed experiments involving life sciences, material sciences, and bone cell research. In 1990, Astronaut Eileen Collins became the first female shuttle pilot aboard Discovery. Collins commanded two space shuttle missions including the important return to flight mission in July 2005, the first after the 2003 Columbia disaster. Since Sally Ride’s momentous 4 flight into space, the ranks of female astronauts have grown. And in a male-dominated field, they hold a special position as role models for young women everywhere who dream of reaching the stars.   
 

n.食物的一份&adj.帮助人的,辅助的
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
v.(军)散开成战斗队形,布置,展开
  • The infantry began to deploy at dawn.步兵黎明时开始进入战斗位置。
  • The president said he had no intention of deploying ground troops.总统称并不打算部署地面部队。
adv.专门地,技术上地
  • Technically it is the most advanced equipment ever.从技术上说,这是最先进的设备。
  • The tomato is technically a fruit,although it is eaten as a vegetable.严格地说,西红柿是一种水果,尽管它是当作蔬菜吃的。
adj.重要的,重大的
  • I am deeply honoured to be invited to this momentous occasion.能应邀出席如此重要的场合,我深感荣幸。
  • The momentous news was that war had begun.重大的新闻是战争已经开始。
学英语单词
a part
aapo
aclatonium napadisilate
antalkaline
Aria R.
arilode
aschistite
Bermuda plan
biological signal processor
bottle house
captive chain calibration
cell coat
Certizne
clerids
constant variance
corrugated galvanized iron
critical force
crop growth
crotonbetaine
direct drive position
drill rocker
eastern gray squirrels
fault striation
feasible direction algorithm
fleur-de-lys
foxhunter
glibutimine
Gravel Gertie
hage
hairclip
hand-operated screed
hereditary obesity
hesperideans
Hornillos
horse boy
instruction execution sequence
internal carotid artery
K.Kt., KKt
knmg
Kocher's operation
kugoo
laryngeal mirror
low purine diet
Madhya Pradesh
make account of
McCulloch County
metal lubricant
Methodistical
microsporangiate
molecular docking
moonrocks
multijurisdiction
multilayer PCB
nighttime visual range
no-address instruction
nucellar beak
Oelsnitz
opposide
osteochondrogenic cell
pasa doble
paulsons
Paynes Creek
peripheral jet hovercraft
permutoid reaction
picucule
Piroplasmia
poggi
preferential path
prognes
pronunciation guides
psychic censor
pumping lift
relative isotopic mass
render account
reserve for amortization allowance
reticulated vein
Ryobu Shinto
scare the daylights out of someone
scorpaenoid fish
seamen's competency certificate
see one's way clear to do something
shackly
shot blast chamber
slowed-down
soft petroleum ointment
standard error
studmares
superior central nucleus
suprafacial
surdomute
surplus load
syncretizes
syndrome of deficient cold of bladder
synthetic magnesia
thyratron motor
toxicodendrol poisoning
track time
tropicomyia alocasiae
tryptophanyl-tRNA synthetase
two-compartment test
w-type compressor
windo