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
agent provocateur
Agoo
aharon
air standard cycle
all-weather working shed
amphicarpogenous
atherothromboses
average cost of factor
azbel kaner resonance
background returns
Bagre
benthamic
benzo chrome brown g
black card
butvar
caesarian deliveries
calcium peroxide
calyx end
chord packing
clasp hook
clean-cutting method
coagulase factors
confession
conjunctival tubules
counter-current principe
cramesy
cultural body
cylinder dried
data-set transmit-timing (dt)
different sizes
diffuse interface
dim gray
driving seats
ecks
ego-
engineering vessel
flue gas purifier
Frosinone, Prov.di
glimpsable
Greeker
heart-strings
herpetophobia
heterodisomic
high modulus glass fibre
holding-backs
hydrogen-like H-like electron state
indium tricyanide
individual risk
karmin
kengsengmycin
Kharlovka
kribs
linear spectral model
lispe vittipennis
lithographic crayon
macrolens
metroendometritis
microoperations
misprogramming
multilines
nonreloadable
nuptial chamber
oral-lamp
photonic switch
pivoted detent
pneumatic pile extractor
predentaries
psamathophilus
pseudostar
putnas
Pyridenal
r magnitude
Rami sinus maxillaris
re-direct
recoursary
Rescinnal
route setting
Schmidt's orthogonalization
sclafani
seahog
second reading
secondary aliphatic amine
sex plus
sheely
six pointer
sluggish precipitation
snootiness
spongioblastomas
subsurface investigation
taipei physical education college
Talotayakha
three nutrients compound fertilizer
top kip
toxin filter apparatus
Tuckernuck I.
tung chiang
V-RAM (video RAM)
ventricular assist device
wage claim
xanthopsy
Yahuinlla
zukal