二、詞匯與語法知識: 共15小題; 每題2分, 共30分。從每小題的四個選擇項中, 選出最佳的一項。

6. If you smoke too often, your lungs will be even (   ). 

• A、good
  
  

• B、 worse
  
  

• C、poor
  
  

• D、well
  
  

54. (   )

42. The Polar Bears like to swim all the year round, for (   ). 

• A、they can remain young
  
  

• B、it is an easy way to keep the body warm in winter
  
  

• C、they find it enjoyable and interesting
  
  

• D、they might meet fewer troubles in life