1 . Teenagers’ fitness is now a major concern，and physical exercise is very important. It reduces stress and improves fitness. Exercise makes your body strong，and helps you to keep the right body weight. Sports scientist Dr. Helen Lopez offers the following advice to teenagers：“First，you need to find out your present level of fitness. Then you can design a programme that will help you become healthier.”

Dr. Lopez suggests that there are three levels of fitness that need a change of lifestyle.“Overweight”means that the person gets very little exercise and often has a serious weight problem. “Inactive” means that the person does not join in many physical activities，but is not seriously overweight.“Active”refers to people who take part in sports and other physical activities，but do not have a high fitness level.

According to Dr. Lopez，overweight teenagers should work out to keep healthy.“Ride a bike，play volleyball or basketball for a while，and go for a twenty­minute walk each day. All these will help to burn calories.”Inactive teenagers should do similar activities, but add some bending and stretching exercises, such as push­ups and sit­ups, starting with twenty of each a day.“Inactive people can take a little more exercise than overweight people because their bodies are stronger，”Dr. Lopez said. The same rule applies to active teenagers.

Dr. Lopez suggests one hour a week or more on running and other forms of intensive exercise，together with fifteen minutes a day spent on stretching and bending activities.“These are really important in order to prevent injuries,” Dr. Lopez said. Some weight­training and other body­strengthening exercises could also be planned in the programme in order to increase the person’s strength.

1. What can we learn from the passage?

A．Active people always have a high fitness level.

B．Overweight people always take more exercise.

C．Keeping fit means changing teenagers’ lifestyle.

D．Inactive teenagers are not seriously overweight.

2. Which of the following is NOT mentioned in the text?

A．Physical exercise can make the teenagers grow taller.

B．Physical exercise can help teenagers become healthier.

C．Physical exercise can help to burn up calories.

D．Physical exercise can increase teenagers’ strength.

3. In order to prevent injuries you should do some ________．

A．walking exercises	B．streching and bending
C．riding	D．weight­training

4. What is the best title for the passage?

A．Doing Exercise

B．Teenagers’ Fitness

C．Different Lifestyles

D．Overweight Teenagers

2 . 请根据上下文内容，将文中划线部分译成汉语或者英语，并将答案转写到答题卡上。

Exercise has a range of health benefits. However, some people believe that     1     if some exercise is good, more is always better, so they tend to exercise for a long time without stopping. For example, some people go jogging for several hours at a time because of the step-counting smartphone apps.     2     还有些人周末连续锻炼数个小时 to make up for their lack of exercise during the weekdays. Habits like these put stress on the body, and if maintained over the long term,     3     they can be a serious health risk.

Generally speaking, aerobic routines that last over 100 minutes have a certain health risk. On the other hand,     4     they should not be shorter than 10 minutes. If you do exercise for only a few minutes, you may not be working out long enough to see any benefits from it. When you exercise, aim for the daily average of 30 to 60 minutes.     5     这将会防止你受伤. Moreover, it will ensure that the exercise you do has a positive effect on your physical health.

4 . Sometimes it may seem difficult to improve our health. If so, the following health habits may help you.

    1    

Research shows that eating a meal in the morning resulrs in less body fat and less chance of overeating. Eating breakfast can help people feel better physically and mentally throughout the day. But you should remember that no single food gives you all the nutrients(营养物) you need, so eating a variety of foods in the morning is important to good health.

    2    

Sleep is important to good health and emotional well-being. Poor sleep can influence our memory and learning. It can influence our memory and learning. It can also cause traffic accidents! Students show that people who don’t get enough sleep seem to get into more accidents. So get enough sleep and stay safe!

Take a walk every day

Walking is an easy way to add exercise to our lives. Instead of meeting friends for a meal, meet them for a walk. As you walk, you will see the beautiful world around you. Once you try, you’ll find that adding a walk into your daily life is very easy.

    3    

Since they are relaxing activities, hobbies are usually enjoyable. They help people to relax and rest. They bring us joy. The joy may help people live healthier and recover faster from illness, A hobby could be running, reading or making something with your hands. Everyone could get a little more joy in their lives!

A. Have a hobby.
B. Get enough sleep.
C. Keep a healthy diet.
D. Eat breakfast every morning.

5 . Nowadays teenagers live very busy lives and often forget to think about their diets and exercise.

Healthy eating along with regular exercise is the only way to become fit.     1    从长期看节食并没有用 ，yet about 19% of the teenagers say they have tried dieting and skipping meals to control their weight.     2    . If you skip meals, you don’t get enough energy and then you may feel tired. 50% of your calories should come from rice, bread, vegetables and fruit.     3    你也需要每天喝6至8杯水to improve your skin and give you health hair. If you can take in the correct number of calories and exercise regularly, you will keep fit, feel great and have more energy.

    4    Exercise can help to make you look good, feel good and be healthy. Walking and riding your bike count, and so do school sports. When you exercise, your body produces some chemicals that make you feel peaceful and relaxed and increase your ability to concentrate when you study. These chemicals can even help you sleep better at night.

    5    A good amount of sleep every night is also important for your health As a matter of fact, loss of sleep can make you look tired, and even cause you to gain weight.

If you follow the suggestions above, you will look and feel much better in no time at all.