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
artificial dielectric
autonomous potentials
balenciagas
balmaseda
Belenus
bird-dogs
blackfellers
Bodenwerder
botraille
burnable absorber
C. E. D.
cabinlift
Calcimar
cannabidiolic acid
cast ewe
centineo
cinnamyl cinnamate
Cirat
clausocalanus furcatus
compound extract
Congo franc
containment annulus
continuous muller
cordesman
corrector loop
cristine
critical volumn
crossword puzzle
crowstons
cruisegoer
cylindrical grinder with wide grinding wheel
dc cable
dealigning
Dhofar
diploma of graduation
Doctyl
drosses
eleemosynar
embedment depth
end burner
end-of-excerpt
Esenguly
extra-hard cold work
feigl
field discharge protection
folliculosebaceous cystic hamartoma
foredoomed
Frankfort on the Main
globosities
gluceth
go to great ends
goldleaf electrometer
ground power
hardening modulus
Hoya multiflora
hypochordal arch
I-FI
immediate execution mode
in bonded system
interphase exchange coefficient
introitus vaginarum
Iranianise
kangaroo system
learning counseling
Li Shizhen
lithophyl
malonyl urea
methylacryloyl-
nonallegorical
partial double hull boat
pearlite (perlite)
peppernel
preparative layer chromatography
quartz exhalite
ratio of the circumference of a circle to its diameter
rector
regional degeneration
removal of impurities from station circuit
rod cluster control changing fixture
runaway chain reaction
scare-fly
scrimpings
sculptural relief
self respect
sergeancies
sharklet
sinusoidal projection
sporas
spring for rocker shaft
start-stop pattern
susanas
switching signal
taking me out
threshing time
Titov Seamount
Toundourou
tunnelway
unselfconsciously
versus analysis
visualisers
waterperries
wide angled lens