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
adaptive flight control system
alleged cofession
amplitude stability
anti red eye
antizombie
automatic centrifuge
back-pedaling
backstop tong
biopannings
bream b. (whangarei b.)
Bromley-Davenport
burd-alone
burner with stand
cerebellar syndrome
colo(u)r temperature scale
conserves
Coptotermes formosunus
course management
covalences
d-tex
dambos
deflection wedge
deltoid branch
delusion
die casting molding
dihydroheterocodeine
diuretic property
double helical heater
downcasts
driving resistance
drum rinser
elaiosome
ermahgerd
extension dividers
F.1262
fissure of retreat
flexure test
Fluorokine
flushing of ewe
for a minute
good neighbourly and friendly relations
have the wrong end of the stick
historical linguisticss
hor propagation
hypoharmonic function
Ilchester
imitation butter oil
Inspector Knacker
intermetatarsal joints
Iyasagan
Jeneffe
juic i er
Ka-ching!
kitchen cake
laid-in effect
Land of the Rising Sun
magnetoelectric detonator
menu builder
mianoes
mixed class
Myopan
n-aries
narw
noncontractual claims
nonhospitalised
norm-referenced measurement
Nutall's technique
p cells
Pantothenase
passenger space
petticoatless
pharmaceutical history
photoelectric material
principal inertia axis
pseudo-astatic governor
Qatabanian
Rabaul
rabbinism
ratio of net income to outstanding common stock
rocking mirror
rough-and-tumbled
scimiters
self-images
spamidol
submicroscopic deletion
surface absorption
surface endurance limit
sync interval
taiwanin
takeoff point
tastebuds
the Coriolis effect
three-quarter veneer crown
throttle dash pot
toll office
turbo-generators
tussur silk
unit time
ureterocoeles
vacuum distillation range
value of distribution
Zurvan