Everyone knows that exercise is important. We all need to exercise. Doctors say it is good for us. It makes your heart and body strong. Children who often exercise are more alert（灵活）. That means they do better in tests and schoolwork than those who don’t exercise.

   They are many ways to exercise. You can walk, run, swim, skate, or play ball games. Make sure you exercise in the following ways: You have to like what you are doing. Exercise enough--- but not too much. It’s best to exercise twice a week. Thirty minutes each time is enough. Try all kinds of sports until you find one, two or even three sports that feel right for you.

   You can exercise at fitness centers. They have a lot of equipment（设备）there. The equipment will help exercise your arms, legs and other parts of your body to make you healthy. Some people buy equipment for their homes. But it’s very expensive.

1.the underline word “fitness centers” in the passage means _____.

A. 商务中心     B. 健身中心 

C. 医疗中心     D. 购物中心

2.The sport “_____” is not told in the passage.

A. playing soccer     B. skateboarding 

C. walking          D. running

3.The doctors say that exercise can make your heart and body _____.

A. ill     B. happy   C. strong     D. health

4.About “exercise”, which statement of the following is NOT right?

A. Thirty minutes’ exercise each time is enough.

B. You have to exercise too much every day.

C. You needn’t do all kinds of sports to keep healthy.

D. You have to like the sports that you are doing.

5.It’s best to exercise _____.

A. at fitness centers    B. in groups

C. in the morning      D. twice a week

Now more and more people get to know the importance of doing sports. It can bring fun?????? us and it can also make us ???? .

????? what should we do?

First, we should choose (选择) our favorite ones from ???? kinds of sports. The sports must be right for us.

Second, we must warm up (热身) before ????? .

Third, ????? a beginner, you had better have an exercise plan. For example, ????? are you going to exercise each time? How many ????? a week? If you’re a ????? of sports, it’s important to know this.

Last but not least, you had better not exercise if you feel ?????? , or it will be very dangerous.

1.A. for????????????? B. to????????????? C. with????????????? D. on

2.A. health????????????? B. healthy????????????? C. warm????????????? D. healthily

3.A. Or????????????? B. And????????????? C. But????????????? D. So

4.A. same????????????? B. the same????????????? C. difference????????????? D. different

5.A. exercise????????????? B. exercising????????????? C. to exercise????????????? D. exercises

6.A. as????????????? B. than????????????? C. then????????????? D. so

7.A. how often????????????? B. how many????????????? C. how much????????????? D. how long

8.A. times????????????? B. time????????????? C. people????????????? ? D. players

9.A. love????????????? B. loving C. loves????????????? D. lover

10.A. fine????????????? B. fit????????????? C. ill????????????? D. well

The keys to reaching or staying at a healthy weight are regular exercise and good eating habits. Teens should get 60 minutes or more of physical activity a day. Note the word “activity”. As long as you’re getting your body moving, it doesn’t have to mean doing difficult exercise or going to the sports hall every day. All that matters is that each week you get the right balance of activity, including aerobics (有氧运动), strength building, and flexibility (柔韧) exercise. Make exercise a habit by arranging some time every day.
On days when you have soccer practice or an aerobics class, you may have no trouble exercising for an hour or more. But most of us are busy, and 60 minutes a day for exercise seems like a lot of time. The good news is that it’s OK to divide it into shorter exercise breaks throughout the day.
Just as you might have a healthy snack to stop yourself from getting hungry, exercise snacks can keep energy levels high. So get up 15 minutes early and do some stretching (伸展) activity. Walk fast or run slowly for 15 minutes after lunch. Do the same thing after school — or walk or bike home. Add to that taking the stairs, PE class, and walking between classes during the day, and you’ve probably reached your 60 minutes.
Here are five simple ways to make an exercise lifestyle change:
【小题1】The writer thinks many people probably misunderstand the word“activity” to be “_______”.  

The keys to reaching or staying at a healthy weight are regular exercise and good eating habits. Teens should get 60 minutes or more of physical activity a day. Note the word “activity”. As long as you’re getting your body moving, it doesn’t have to mean doing difficult exercise or going to the sports hall every day. All that matters is that each week you get the right balance of activity, including aerobics (有氧运动), strength building, and flexibility (柔韧) exercise. Make exercise a habit by arranging some time every day.

On days when you have soccer practice or an aerobics class, you may have no trouble exercising for an hour or more. But most of us are busy, and 60 minutes a day for exercise seems like a lot of time. The good news is that it’s OK to divide it into shorter exercise breaks throughout the day.

Just as you might have a healthy snack to stop yourself from getting hungry, exercise snacks can keep energy levels high. So get up 15 minutes early and do some stretching (伸展) activity. Walk fast or run slowly for 15 minutes after lunch. Do the same thing after school — or walk or bike home. Add to that taking the stairs, PE class, and walking between classes during the day, and you’ve probably reached your 60 minutes.

Here are five simple ways to make an exercise lifestyle change:

1.The writer thinks many people probably misunderstand the word“activity” to be “_______”.  

2.When exercising, the most important fact is ________.

3.The author advises dividing activity into shorter exercise breaks because ___.

4.What’s the best title for this passage?