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与美国小学生一起学英文第7册 第7期:电池

时间:2018-04-17 01:19:14

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(单词翻译)

   Battery1 电池

  A battery is a box of electricity. 电池是一盒电。
  It stores chemical energy and this chemical energy changes into electricity. 它能储存可以转化为电能的化学能。
  Can you name the things that need batteries2? 你能列举出需要电池的物品吗?
  A clock may need a battery. 钟表可能会用到电池。
  A car needs a battery to start its engine. 汽车需要电池来发动引擎。
  Many things around us are useless without batteries. 我们身边的很多东西没有电池就一无是处。
  Do you know that batteries were very huge a long time ago? 你知道很久以前电池的体积很大吗?
  People couldn't carry batteries because they were too heavy. 人们携带不了电池,因为它们太笨重了。
  So, scientists developed small batteries. 因此,科学家研制出了小型电池。
  Now, we can carry them everywhere. 如今,我们去哪里都能带上它们。

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1 battery guozO     
n.电池;一批;金属物件;群;【律】殴打
参考例句:
  • He is charging a storage battery.他在为蓄电池充电。
  • The battery has run down.电池用完了。
2 batteries 2876a3dbad0a29a8197f63137712afe6     
n.电池;(蓄)电池(组)( battery的名词复数 );一系列;排炮;层架式鸡笼
参考例句:
  • to replace the batteries 更换电池
  • He is certain that this TV set will operate on batteries. 他肯定这个电视机可以用电池。 来自《简明英汉词典》

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