Question

7．Do you know how important it is to have breakfast？A study of 2，000 teenagers in the US showed that eating breakfast daily is helpful to young people．
    According to the study，teenagers who eat breakfast weigh around 5 pounds less than teenagers who do not．Although they take in more calories （卡路里） in the morning，they are more active during the day because they have more energy．This means they burn more calories than non-breakfast eaters．The breakfast does not even have to be very healthy，as eating anything is better than nothing．
    The study also showed that eating breakfast keeps teenagers feeling full for longer，so they will not eat too many snacks （零食） later in the day．This is goo d news as most popular snacks，like sweets and potato chip s，are usually unhealthy and full of calories．
    Another big advantage of eating breakfast is that it helps teenagers do better at school．This is because it gives them more energy to keep their attention in class．
    What's more，a study in the UK showed that adults （成年人） who eat breakfast daily put on less weight and also perform better at work．
    Whatever your age is，take time to have breakfast every day．
48．The underlined sentence in Paragraph 2 means thatA．
A．teenagers should eat something for breakfast
B．breakfast helps teenagers do better at school
C．breakfast must be healthy with lots of calories
D．the energy makes teenagers active the whole day
49．Having breakfast daily makes the teenagersA．
A．eat fewer snacks              
B．pat on more weight
C．relax themselves              
D．burn less calories
50．The passage is mainly aboutC．
A．the importance of snacks             
B．how the adults perform at work
C．the advantages of having breakfast    
D．losing weight without breakfast
51．We can probably read this passage in a （an）B
A．story book                   
B．health magazine
C．movie poster                
D．instruction book．

Answer 1

分析 本文讲述吃早餐对于青少年的重要性．吃早餐不但不会发胖，还提供给青少年足够的能量使他们在课堂上集中注意力．然而，青少年们常吃的一些零食不仅没有营养，反而会使人发胖．

解答 48-51：AACB
48题答案：A 细节题．根据第二段 The breakfast does not even have to be very healthy，as eating anything is better than nothing这句话的意思是：不是吃早饭一定会让你健康，但是吃总比不吃好．言外之意，就是青少年应该吃早餐．故选A．
49题答案：A 细节题．根据第三段The study also showed that eating breakfast keeps teenagers feeling full for longer，so they will not eat too many snacks （零食） later in the day．"研究还显示吃早餐使得青少年饱腹感更持久，所以白天时就不会吃太多零食．"故选A．
50题答案：C 主旨题．根据第一段Do you know how important it is to have breakfast．本文主要讲述吃早餐的好处和必要性．故选C．
51题答案：B 细节题．根据第一段Do you know how important it is to have breakfast．本文介绍的是吃早餐的好处，和人们的健康有关，由此可以推断选B．

点评 题目涉及多道细节理解题，做题时结合原文和题目有针对 性找出相关语句进行仔细分析，结合选项选出正确答案．推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案．