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
acemecholine chloride
alsophila rebccae f.muell.
alypum
aminoindazole
anode material
anthina brunnea
anthroarchaeologist
apartheidizes
Assam fever
black hemlocks
Bristol alloy
buford
card notch
carpet slipper
centralization of purchasing
Chiltern Hills
class act
climature
compiler abort code
consequent river(stream)
Constantin Brancusi
corridos
Cotoneaster franchetii
coupling bolt
diabetic oculopathy
discussable
drift towards
east-related
eco-parks
elanced
electrion process
eluting gas
end conclusion
epididymal branches
extirpative
first states
four-lens camera
geologically
gortons
hebridess
hyperplasia of mammary glands
iasd
indefinite data
involution rule
j/k
Johnny,Johnnies
juvenals
killearn
Lagrange equation(of the 2nd kind)
Lemniscomys
Lepidagathis hainanensis
leptonic weak interaction
liquid-disintegrated cast iron
live hand to mouth
loan regulation
lophiomus setigerus
lymphangiosarcoma
magnetic field coenergy
magnetostrictive oscillation
media adapter
monomino
mucinous plaques
nacfa
nonprocedural
Novy-MacNeal-Nicolle's medium
obtrude
oil repellenet
one-step cross beam
orthodox practitioner
ozone-depletings
papual eruption
pitzer equation
pizza wheel
PO bridge (PO box)
Pseudacris
refrigerable
rice bakanae disease
risi
roseoloviruses
sailing date
sclondre
semi-logarithm
sinking fund cash
steady-state solidification
stickiness
stop gap
strain gauge sensor
suction canal filter
TALD
teleuto stage
temps atomique international
thermal infrared imager
thrasonical
to cut and run
top-quality rubber
tracing coordinatograph
trademark registration law
tridecyl benzene
tunica albuginea corporum cavernosorum
unplatted
waylor
Wilkes Fracture Zone