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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2-butanone oxime
accessory pancreatic duct
Addisonian termination
adulterine castle
aircraft rountine maintenance
alpheus obesomanus
alternative hypothesis testing
anisotropine methylbromide
Anshan Iron and Steel Company
bactrocera kandiensis drew et hancock
Balbiani's body
barometer scale
beanianum
blade cascade loss
Bulgary
charigs
Chicksaw
churchperson
class structures
colo(u)r developing agent
combustible fuel air mixture
concorded
connecting rod top end bearing
consumer psychology
currysauce
dabb lizards
descriptive phonetics
disfigurative
display performance
distance of towing attachment in front of rear of vehicle
dithiooxamide
diverted river
domette bandage
dropsonde observation
drumline
electric radiat heater
emaculation machine
eucyclotoma albomacula
extinction ratio of transmitter
facet syndrome
farm laborers
flat strip steel
forenotices
fuel pump deliver line
genus anthoceross
guard tent
gunperson
half-cupped fracture
hazardous materials
heterphoria
himalayan rhubarbs
holding brake
How's life?
hylephobia
hyssopus officinaliss
ingot sampling
insurance conditions
kamata saki (gamoda-misaki )
lienyunkang
low base drag nozzle
Mary Wollstonecraft
Matthews, (James) Brander
Matthodorm
media cultivation effect
medicalizations
memory fluid
Microsoft Live
milfoil
misquoted
myosome
necronectomy
nesa glass
non symmetrical network
object of procedure
official-use
peer-groups
persons subject to withholding
poddinger
profile designing
Randolph's test
rebounded upon
return back
sailor caps
saintliker
sanky-pankies
saststsosrsnsesys-s
shorebounds
sleeper seat
sodium methanearsenate
sound environment test chamber
Susubona
tentmaking
test data memorandum
the alimentary canal
thrombosis of internal jugular vein
tracking & data relay satellite (tdrs)
uncoated paper
unit class
unlikability
variable displacement device
whistle beef
xestia enyachangae