阅读理解。
     Persons who have a well-balanced diet generally have a good appetite at mealtime. How is your
 appetite? Do you ever find that you are too tired to eat a nourishing (有营养的) breakfast  in the
 morning?  If you do, you are probably not getting enough sleep. Try going to bed earlier at night and see if
 your breakfast appetite is improved.
      Do you sometimes find that you are not hungry for lunch at school? Perhaps it is because you eat the
 same kinds of food for lunch every day. Try varying (变换) the foods you eat for lunch. You will probably
  find that your appetite improves greatly.
      Do you sometimes find that you are not hungry at dinnertime in the evening, even when your mother
 has got ready a favorite dish of yours for you? There could be several reasons for this. You may not be
 getting enough exercise after school. There is nothing like exercise and activity to improve the appetite.
 Perhaps you are eating snack foods that take away the appetite. Have you ever noticed that eating a piece
  of fruit or drinking a glass of milk? Try to avoid (避免) eating candy for snacks.
1. The word "appetite" means _____ .
    A. a feeling of eating        
    B. a wish for food
    C. feeling hungry          
    D. a wish to drink
2. A nourishing breakfast is a _____ one.
    A. healthy  
    B. common  
    C. pleasant  
    D. tasteful
3. "Try varying the foods you eat for lunch" means  _____ .
    A. you should prepare the same food for lunch
    B. you should eat different foods for lunch
    C. you should try to eat more food for lunch
    D. you should try to cook better food for lunch
4. "Your appetite improves greatly" means your appetite  _____  .
    A. becomes better        
    B. becomes worse
    C. becomes smaller        
    D. becomes larger
5. You would likely lose your appetite if you eat _____ before dinner.
    A. biscuits                  
    B . watermelon
    C. sweets                  
    D. milk snack