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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abrading machine
actual voltage ratio
aesthetic perception
allotment garden
aloe officinalis forsk.
alopecia capitis totalis
aorta dorsalis
bangwa
Basutoland
Bidadari, Tg.
bisdimethyl arsenic oxide
blanking clearance
cansule cell
ceratostyle
Chranak
chylolus urine
compass north
counter reignition
cyamopses
Cyathula
dandily
debt claim
defensive yang being obstructed
derezzed
dot leader
drop meter
exchange of information
F-sharp minor
fixed interval (fi) schedule
flail chopper
fluorescent dye
folding s tress
following pointer
fork up the roots
free distance
furfurals
genus sceloporuss
geometrical boundary condition
glyoxyloyl
griefsome
hacker's handbook
hall electrode
hand handbook
heliodoruss
hemlock
imparled
in-turned
intra-ocular foreign body forceps
jamless
Khilafat
Korido
legacy tax
leisure travelers
ligameata plantare breve
long terminal repeat
macro-clastic rock
macrogram
main unit
microangiology
midnight noise
motive steam strainer
muhammad ghori
network data
nonfelids
nonresiny
oliveira-martins
ordered enumerated type
over-extended
path unit
peak unit
perturbation
Petalolithus
PGBK
pirate valley
processing node
pseudo-intellectual
radio and telephone control
reflection modulated optic fiber sensor
reshine
RFID inlay
ronaldsways
semishrubby
sharovari
shillaly
spirit
spruce beetle
squamulate
Stanhoscope
starter cut-off
steerings
stevvoned
sulfuric chlorohydrin
surplus or deficit of annual receipts
take to your bosom
tantes
Towon
tubular-rivet
two-body type calorimeter
vibration resonance
warm washing water
wedgeshaped oophorectomy
weeks from monday