36. Which of the following is people' s natural response to pain? 

• A、They tend to feel worried and frightened.
  
  

• B、 They want to make sure it won't last long.
  
  

• C、They prefer to forget the bad memories. 
  
  

• D、They try to find out what may cause pain.

56

47. Where is the passage most probably taken from?

• A、A novel.
  
  

• B、 A tourist guide.
  
  

• C、. A product catalog.
  
  

• D、A biography.