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
学英语单词
2-methyl-1-butanol
accepted cheque
accessory thyroid glands
advanced digital recording
alesky
amyl acetate
An Binh
aquila heliaca
auger-type grain elevator
automated system development metho-dology
Blundeston
bogywoman
bores
bring suit against
budgetary resourses
calycate
capacity of networks
car-jack
cementing materials in rocks
Chillingham
Chrysippan
clound burst treatment forming
coffee bag
colloid stabilizer
comprehensive pumping system
concentrator assembly
conidial type
cop killers
custrons
dart off
drive sb. hard
ductile gouging
Dunbaria henryi
end-toothed disc
equilibrium of static equilibrium
Etacin
ethoxy methane
extrasensitive clay
family plannings
FASTBUS protocol FASTBUS
Figeac
flag an account
galvanocautery knife
geaney
genus Ziziphus
guaza
hiddenites
iron-powder core
Jahweh
kid-friendly
lacunary
latration
legibilities
Lesperon
magia
mahallas
marrelized finish
minimax decision rules
mossparks
Mother Teresa
myroxin
natural frequency of sucker-rod string
natural pasture
natural-current method
nonpolycyclic
normal mode solution
obtested
oscillator conche
ougi no sabaki (japan)
overstacking
Pars supraclavicularis
particular function
pattern interference
pipe-layer
piss-hole
preclear
product accumulation
PSED
pseudocercospora cladophora
qnx
rack washer
replica mirror
rhenium carbonyl
Rojal
shared array
slipcastings
speckle holography
Spiraea bella
style yourself
take an account of
tardive dyskinesia
tension set
titanolivine
Turam method
warrants bond
wartberg
wetten
whistlings
white horse nettle
winter form
writeprint
zootique