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
标签: 听力文摘 斑马
学英语单词
163
acidhouse
acute hoarseness
Akeley, Carl Ethan
all-fighter
aujourd'hui
B-Shares
back(-)country
baldachins
bit of drill
blue buck
bottomed
bump-in-tail instability
Bustinza
castaway
Central Sulawesi
champagne socialists
cloud density
commodore 1541
convex cross section
Dagenham
dark lantern caucus
DIX connector plug
dummy coupler
equivalent-circuit technique
exponential decay time constant
Farfugium kaempferi Benth.
fides Punica
flat finisher
foreset beds
four-color display
Gaussian region
geochelone elephantopus
germophobe
gift-givings
handhole plate gasket
high-speed photographic optical system
hour wheel cutter
i-steled
ICP-AES
INCSEA
inferior cervical cardiac branches
intercondylar fracture
isolation transformator
jet well
Kafr al Jarā'idah
kallikrein
laddic
latynn
lead base solder alloy
lethargizing
levelling of dye
magnetic disk adapter
manual setter
masseter reflex
Megamonoporites
mendocino
Mile High Club
molman
multiterminal interface
murdermonger
network ferrite
new light
null indicating oscilloscope
Nämdö
opian
optimisations
pancakey
pelyco-
petalled
phyllosticta conjac hara
pro tempore
pro-R group
program management control table
radiation protection assessment
Railway Technical Research Institute
ranicipitid
rephosphorylation
rock permeability
royalty bidding
s single screw thread
saw their way clear to doing
septic exanthem
shear deformation theory
skiba
slavin
solar air power plant
spring loaded regulator
steering swivel
stunties
symmetric list processor
tear sth pieces
tharn
top-down method
tractor kerosene
transrectus incision
Ulmus davidiana var. japonica
undifferentiated cell
vowel diagram
wei dynasties
Wing and a prayer
wool extract