B
①The healthy eating habit along with regular exercise is the best way to become fit. If you have the correct(正确的) number of calories and exercise regularly, you will lose weight, keep fit, and feel great too.
②During your teenage years(青少年时期), it is important to give your body the energy it needs. It’s good for your growth. If you don’t have 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 fruits. 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.
③Exercise is something that can help to make you look good, feel good and be healthy. Doctors suggest that teenagers should spend at least 30 minutes exercising a day, five times a week. That is easy to do! You can walk or ride your bike to school, and do sport at school. However, teenagers often don’t do that, saying they have no time left after their studies. In fact, doing exercise can help them sleep better at night and pay more attention to their studies.
④Boys and girls, follow the suggestions above, and make your new year’s eating and exercising plans.
(
A
)16. If you have healthy eating habits along with regular exercise, you won’t
.
A. feel terrible B. keep healthy C. lose weight D. feel good
(
C
)17. How long do doctors suggest the teenagers should spend at least exercising a week?
A. Half an hour. B. One hour. C. 2.5 hours. D. 6 hours.
(
A
)18. Which is NOT right according to Paragraph 2?
A. People will feel tired when they get less water.
B. Teenagers’ growth needs enough energy.
C. Water is also important to keep us healthy.
D. Calories come from rice, bread, vegetables and fruits.
(
B
)19. What’s the structure of this passage?

(
C
)20. What’s the best title of the passage?
A. How to eat food B. How to exercise
C. How to keep healthy D. How to lose weight