Do you know how important it is to have breakfast? A studyof 2,000 teenagers in the US showed that eating breakfast daily is helpful toyoung people. According to the study, teenagers who eat breakfast weigh around5 pounds less than teenagers who do not. Although they take in more calories (卡路里) in the morning, theyare more active during the day because they have more energy. This means theyburn more calories than non-breakfast eaters. The breakfast does not evenhave to be very healthy, as eating anything is better than nothing.
The study also showed that eating breakfastkeeps teenagers feeling full for longer, so they will not eat too many snacks (零食) later in the day. Thisis good news as most popular snacks, like sweets and potato chips , are usuallyunhealthy and full of calories. Another big advantage of eatingbreakfast is that it helps teenagers do better at school. This is because itgives 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 breakfastdaily put on less weight and also perform better at work.
Whatever your age is, take time to havebreakfast every day.
46. The underlined sentence in Paragraph1 means that ____A_____.
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 wholeday
The breakfast does not even have to bevery healthy, as eating anything is better than nothing. 早餐甚至不用一定是非常健康，即使吃任何东西都好过不吃
A. 青少年应该吃点什么当早餐。
B. 早餐帮助青少年在学校做得更好。
C. 早餐必须健康并富含很多卡路里。
D. 能量让青少年一整天都充满活力。
答案A最符合划线句子的句意。
47. Having breakfast daily makes the teenagers _____A____.
A. eat fewer snacks B. put on more weight
C. relax themselves D. burn less calories
题意为：每日吃早餐让青少年-------
A：吃更少的零食 B：增加更多的体重
C: 放松他们自己 D:燃烧更少的卡路里
故答案A符合文意
48. We can probably read this passage in a (an) _____B____.
A. story book 故事书 B. health magazine 健康杂志
C. movie poster 电影海报 D. instruction book 说明书
本文主旨是关于早餐与健康方面的论述，故选B。