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
acetamide chlcride
agroexport
Albright-Knox Art Gallery
alidase
althe, altho'
Altomünster
Androka
balloon net
belt fork lever
Berëzovskoye
blackband ironstone
botulisms
breynia officinalis accrescens
caitlyn
carbon print
ceramic membrane electrode
Charter Dist.
check collector
chutney ferrets
circulation sand
combined estimation
crusta
cutie-pies
cyanide case-hardening
cymatium muricinum
Demophon
diass
division-control multivibrator
Erathyrus
European shrike
eye-screen
fabricking
facilities clearance
feldstein
finishing machining
flat plate airfoil
foliose lichen
fused magnesium phosphate
giant diverticula
graduated hopper-charging
guugu
hotel it
hunting and gathering stage
Hurd Pt.
hydrogen inner-cooling system
hydroprognes
in the sky
incisivum
indeere
infinitely thick target
inlet vale
irrita
Jemaja, Pulau
Kekerengu
Kikongo
kurgan
lecture-style
ligurian seas
linked genes
lipocortin-1
living-trust
many-valley semiconductor
mii
Mondor's disease
motor neuron disease
niblocks
night lights
nonpatient
north-light roof
Osmoxylon
output efficiency
pennycuicks
Pine Bush
piping
pitchfords
potato noses
printed report
programmer's macro instruction
propenyls
proun
push-pull distribution
quad trie
re-handling
reactor run
reciprocating plate and worm type distributor
reslice
rhythmising
sabre-tooth tiger
Saussurea amara
scarron
storm flap
stress-compensation beam
tankel
terminal buffer
That's the spirit!
thoughtforms
times of arrival
tropicalism
two-step flow
wawy
wood sheathing
zero burette