Do you know how important it is to have breakfast? A study of 2,000 teenagers in the US sh

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 good news as most popular snacks, like sweets and potato chips, 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.
【小题1】The underlined sentence in Paragraph 2 means that .A．teenagers should eat something for breakfastB．breakfast helps teenagers do better at schoolC．breakfast must be healthy with lots of caloriesD．the energy makes teenagers active the whole day【小题2】Having breakfast daily makes the teenagers .A．eat fewer snacksB．pat on more weightC．relax themselvesD．burn less calories【小题3】The passage is mainly about .A．the importance of snacksB．how the adults perform at workC．the advantages of having breakfastD．losing weight without breakfast【小题4】We can probably read this passage in a (an) .A．story bookB．health magazineC．movie posterD．instruction bookA

(答案→)A 解析：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。【小题1】句意理解题。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。【小题2】细节理解题。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. “研究还显示吃早餐是的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。【小题3】主旨大意题。本文主要讲述吃早餐的好处和必要性。故选C。【小题4】推理判断题。题意是：这篇文章很可能出自于哪？A.故事书；B.健康杂志；C.电影海报；D说明书。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。

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