Task 1

16. Paragraph     ①     

17. Paragraph     ②     

18. Paragraph     ③     

19. Paragraph     ④     

20. Paragraph     ⑤     

A. Lightening Causes Puzzles to People

B. Types of Lightning

C. Causes of Lightning

D. Differences Between Thunder and Thunderstorm

E. Frequencies of Thunderstorms Occurring in the World and the U. S.

F. Shock Waves as Thunder

Henry Manley had no idea at all why George Strong wanted to see him.

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

The electric motors produced by Henry Manley's company are cheaper than those made in Japan.

• A、True
  
  

• B、False
  
  

• C、Not Given