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英语听力文摘 English Digest 628、太空中进餐!

时间:2013-05-10 08:58来源:互联网 提供网友:mapleleaf   字体: [ ]
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 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, shrimp1 cocktail2, 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 texture3 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 trickier4. 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.

 


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1 shrimp krFyz     
n.虾,小虾;矮小的人
参考例句:
  • 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。
2 cocktail Jw8zNt     
n.鸡尾酒;餐前开胃小吃;混合物
参考例句:
  • 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。
3 texture kpmwQ     
n.(织物)质地;(材料)构造;结构;肌理
参考例句:
  • 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。
4 trickier 8f11f8d26b8de2fe0f7a88a0d6c7708f     
adj.狡猾的( tricky的比较级 );(形势、工作等)复杂的;机警的;微妙的
参考例句:
  • 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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