Be played twice

Q21. How does the lie detector work?

1. 
   It detects whether one's emotional state is stable.
   
2. 
   It detects one‘s brain activity level.
   
3. 
   It detects body behavior during one's verbal response.
   
4. 
   It analyses one's verbal response word by word.
   

Q22. Lie detectors can't be used as evidence in a court of law because

1. 
   Lights often cause lie detectors to malfunction.
   
2. 
   They are based on too many verbal and non-verbal clues.
   
3. 
   Polygraph tests are often inaccurate.
   
4. 
   There may be many causes of certain body behavior.
   

Q23. Why does the author mention the paralyzed patients?

1. 
   To demonstrate how a paralyzed patient smiles
   
2. 
   To show the relation between true emotions and body behavior
   
3. 
   To examine how they were paralyzed
   
4. 
   To show the importance of happiness from recovery
   

Q24. The author uses politicians to exemplify that they can

1. 
   Have emotions.
   
2. 
   Imitate actors.
   
3. 
   Detect other people's lives.
   
4. 
   Mask their true feelings.
   

For questions 25-29, decide if the following statements agree with the information given in the text. Mark your answers on the answer sheet.

25. 
    Everybody can notice the liar if they observe a person carefully.
    

A) True B) False C) No Information

25.