时间:2018-12-31 作者:英语课 分类:英语听力文摘 English Digest


英语课

 


 In the 1960s, during the earliest space flights, no one knew exactly how weightlessness would affect eating and drinking.


 
  Would food fly off a plate? Would astronauts have digestive problems, with no gravity to help things along the digestive system? The first astronauts ate rather unappealing food pastes squeezed directly into the mouth from toothpaste-like tubes. Yuck!

  Today, astronauts eat a variety of foods like steak, shrimp 1 cocktail 2, strawberries and butterscotch pudding. Each food is made as appetizing and simple to prepare as possible. Steak, for example, is cooked here on earth and sealed into a reheatable pack. Strawberries are freeze dried, keeping their shape and texture 3 when they’re rehydrated. It’s easy to get water in space, because the fuel cells that supply electricity for spacecraft produce water as a byproduct.
 
  Containers of food have to be taped, magnetized, or velcroed to trays, and astronauts usually dine with foot restraints on-unless they feel like floating around! There’s usually enough liquid surface tension to keep food in its container, but bump a plate or fork, and watch your dinner drift away!
 
  Liquids are even trickier 4. Juice won’t pour out of a container, but simply stays inside. If you shook it out, little globs of juice would fly everywhere! That’s why liquids are squirted directly into the mouth or sucked in with a straw from a sealed container. Once food is in the mouth, there’s no problem swallowing or digesting.

 



n.虾,小虾;矮小的人
  • When the shrimp farm is built it will block the stream.一旦养虾场建起来,将会截断这条河流。
  • When it comes to seafood,I like shrimp the best.说到海鲜,我最喜欢虾。
n.鸡尾酒;餐前开胃小吃;混合物
  • We invited some foreign friends for a cocktail party.我们邀请了一些外国朋友参加鸡尾酒会。
  • At a cocktail party in Hollywood,I was introduced to Charlie Chaplin.在好莱坞的一次鸡尾酒会上,人家把我介绍给查理·卓别林。
n.(织物)质地;(材料)构造;结构;肌理
  • We could feel the smooth texture of silk.我们能感觉出丝绸的光滑质地。
  • Her skin has a fine texture.她的皮肤细腻。
adj.狡猾的( tricky的比较级 );(形势、工作等)复杂的;机警的;微妙的
  • This is the general rule, but some cases are trickier than others. 以上是一般规则,但某些案例会比别的案例更为棘手。 来自互联网
  • The lower the numbers go, the trickier the problems get. 武器的数量越低,问题就越复杂。 来自互联网
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学英语单词
aeluropsis
air-operated gauge
andrew
anons
anticone
arc gravity dam
army-navy
bag of antlers
baykal range (baykalskiy khrebet)
blackout technique
borofsky
bours
brisil
browes
burn-up control
cam shaft pump
capacitance coupled
carbonylamines
carboxyisopropylcysteine
check up on sb
chordoblastoma
clock count
close stool
completed (qualifier)
complex picture information system
consolidation press
COSIRA
customs boarding officer
cut off adjustment
Damar, Gunung
de face
decreaseth
dichroite (cordierite)
doordarshan
elements
eupatocunoxin
family jassidaes
fluff girl
fnas
genus selenarctoss
gettas
glassons
h.e
high grader
high speed steel power hacksaw blade
hydraulic formula
incubatory
instantaneous fading
irradiated fuel
Jarrett
kidney duct
lodgeings
mortar combine
mpn
multilevel circuit
nervi lacrimalis
north plattes
on-lending to
output from decision assisting models
partial cecectomy
patagium (pl.patagia)
Phacocypris
pile core
pit car oil
polishing,buffing
postdeflection accelerating electrode
praseolite (prasiolite)
presbytess
pro-gens
pull-spring
PUSE
pyroantimonates
quinological
RAHTG
ratione materiae
reconductored
repopulators
RF shift
Rigsdag
Rio Tinto process
splined spanner
spotter
steering capacity
stick your nose into
strand parenchyma
Thalictrum filamentosum
tisar
tortula yunnanensis chun
total air defense
total pressure drop
trapezoidal-shaped belt
tubuli dentales
tungsten oxychloride
turn of capital
two parts
unlorded
urethralgia
valve breakdown
Varlamovo
vesicosigmoid
wild relatives
wing top