The phrase "crop rotation" (Para. 3) probably means_____.

• A、growing high-yielding crops
  
  

• B、seasonal growing of crops
  
  

• C、planting soil-enriching crops
  
  

• D、regular changing of crops
  
  

Task 2

21.Milk is rich in_____.

22.Milk and honey help_____.

23.Honey helps the absorption_____.

24.Your body may bend or move easily if you_____.

25.Drinking honey milk regularly can prevent_____.

A.proteins and calcium

　　B.fat and sugar

　　C.cough and cold

　　D.your body look and feel young

　　E.drink milk and honey

　　F.of calcium

Parents are responsible for their children's self-esteem.

• A、True
  
  

• B、False
  
  

• C、Not Given