Unit 4 Electricity 课件.ppt
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Unit 4 Electricity
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Reading
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electricity  n. 电        electrician  n. 电工
There is a problem with the electricity in Tom’s
 flat . An electrician has come to deal with it .
    electric   a. 电的
  electric storm
  electric shock
   electrical a. 电气科学的
electrical apparatus      电器
electrical engineer       
Words and expressions in Reading A
What do you know about:
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change    v/n. 变化
We can’t see electricity , but we can change
 it into energy .
Great changes have taken place in Shenzhen
 since 1980.
  changeable   a.
The weather is changeable on top of the mountain .
   n. 找头；（找回的）零钱
Here is your change.
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 energy   n.            
 Young people usually have more energy
  than the old.
   年轻人通常比老年人有活力。
 
energetic     a.
 1. He is an energetic boy; he enjoys sports.
 
 2."The more the young students worked,
   the more energetic they became."
  这些年青学生们越干越有劲。

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a
b
a
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