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Having an exercise plan is important, but you should always ask your doctor for advice before starting it. Keep in mind that you can have too much of a good thing: overexercising and exercising in a wrong way can hurt (傷害)your body. The following suggestions can help you avoid(避免) this.

Warm up before exercise. This helps to prepare your body for activities. It's especially important in the morning.

Cool down after exercise. Rather than stop immediately, do a few light activities to avoid aches and pains later.

Exercise with your limits(極限). Build up slowly. Never try to exercise when you feel painful. If you don't listen to your body, you will hurt yourself.

Avoid being thirsty. Water is important to keep your normal temperature during exercise and prevent(預防) tiredness.

Wear sports shoes. These shoes can keep your feet safe and prevent you from being hurt.

1.Before you start your exercise plan, you should________.

A. make up these suggestions

B. ask your doctor for advice

C. find your health problems

D. have a careful health exam

2. ________is especially important before exercise in the morning.

A. Warming up our body

B. Cooling our body down

C. Drinking enough water

D. Putting on sports shoes

3. The writer gives us______ suggestions in the passage.

A.three B.four C.five D.six

4.This passage mainly(主要) tells us________ .

A. to warm up before exercise

B. how to keep healthy

C. how to exercise in a right way

D. not to exercise too much

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