问题补充：
How to Become Fit?
Healthy eating habit along with regular exercise is the only way to become fit. If you have the correct number of calories and exercise regularly, you will lose weight, keep fit, and feel great, too.
During your teenage years, it is important to give your body the energy it needs. If you skip (跳过) meals, you won’t get enough calories, and then you will feel tired. By the way, calorie is just another word for energy. About 50% of your calories should come from rice, bread, vegetables and fruit. You also need to drink a lot of water, 6 to 8 glasses a day. Water helps keep your system clean. Drinking enough water will make your skin better and make you healthy.
Exercise is something that can help to make you look good, feel good and be healthy. Experts suggest that teenagers spend at least 30 minutes exercising, five times a week. That is easy to do! You can walk or ride your bike to school, and do sports at school. However, teenagers often give up sports, saying they have no time left after their studies. In fact, doing exercise can help them sleep better at night and increase their ability to focus on their study.
If you follow the suggestions above, you will look and feel much better and become fit.
【小题1】 What’s the main idea of this passage? A．How to eat food. B．How to exercise.C．How to lose weight.D．How to keep fit.【小题2】The underlined word “calories” means in this passage.A．营养B．能量C．强壮D．锻炼【小题3】Teenagers spend at least minutes exercising a week according to this passage.A．150B．50C．30D．5【小题4】 If you , you will become fit.A．exercise regularlyB．drink lots of water C．eat rice, bread, vegetables and fruitD．have a healthy eating habit along with regular exercise【小题5】Why do teenagers give up sports in school according to this passage?
Because they .A．are lazy B．feel greatC．are busy with their studies D．don’t like sportsD
答案：
(答案→)D
解析：
【小题1】根据How to Become Fit?如何变得健康？及下文描述可知选D如何保持健康。
【小题1】根据If you have the correct number of及下文you will lose weight, 可知选B为最佳答案。
【小题1】根据Experts suggest that teenagers spend at least 30 minutes exercising, five times a week.30*5=150故选A。
【小题1】根据Healthy eating habit along with regular exercise is the only way to become fit. 可知选D。
【小题1】根据teenagers often give up sports, saying they have no time left after their studies.可知是学生忙于学习，故选C。
