Task 2

21. Some form of ideal society is       

22.Books written by J. Verne are       

23.People enjoy       

24 Works of modern science fiction have       

25.Writers find it difficult       

A. a recurrent theme

B. to keep ahead of scientific advances

C. reading books of science fiction

D. political implications

E. a current theme

F. read worldwide

What is the literal meaning of the word“television”?

• A、Medium of the masses.
  
  

• B、Sight from a distance.
  
  

• C、Airwave transmission.
  
  

• D、Vehicle for communication.
  
  

Which of the following is NOT mentioned in the passage as a function of electronics in television transmissions?

• A、The conversion of an image into electronic impulses.
  
  

• B、The sending of impulses through a wire cable.
  
  

• C、The changing of one image into another image.
  
  

• D、The feeding of impulses into a receiver.