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
accounts receivable register
adenocarcinoma of testis
adret slope
alyxia yunkuniana tsinag
amplitude corrector
angulus superior pyramidis ossis temporalis
automatic holding device
average occupied amount of current capital
bank nominee
battery filler
begash
Berkane
beta-unstable isotope
bookkeeping machine operator
bopping
brentsville
Bristol onion
bromal
bulb with goliath screw cap
by owner
calling plan
catalog showroom
cement-formation interface
cerithidea rhizophorarum rhizophorarum
cerography
Chamaepericlymenum canadense
Chegar, Bukit
Clidanacum
clipping pasture
conservation law
control system equipment
copper(ii) hydrogen arsenate
Cornish literature
counter-insult
crime of children
diamond-ring effect
draft excluders
echinodol
electroformed
electronic game
ethanedioic acid
fluorinating agent
frauenfelds
GLC-MS
guaguanco
Générac
haidusek
high-temperature fixed point
HTR absorber rod
imprisonment in the first division
integrated voice channel
isostructurality
jump space
korie
Kushalino
loudness balance
Maleatis
menges
microdons
mid-position contact
misopeida
Moroccanised
mouth-friend
multiple online
multitransmitter
Myxal
Nodi lymphatici linguales
non-degenerative type
organizo
osteoacusis
out of pity for
phenocopied
phononless
plum pudding
posterior ring
processed cheese spread
pujos blancos
pulingly
radiotelephone procedure
refrigerant pump
reprehensively
reverse side of a bill of lading
sample can
seam-slag cleaner
settle a problem
shuttle filler
side velocity
Sorisdale
strip a still
tannin extract
tenuipine
ther
track joist
tradebid
trichocephaliasis
two-dogs
un hyphenated
vertical feed mechanism
VIDOC
viscosity printing
whiteness index
Whittaker-Shannon sampling theorem