四、閱讀測驗
Many people run for sport or exercise. But what if you are not a “bom” runner or jogger? You may still want a sport that is inexpensive and easy to do. Why not try walking? Walking is something that almost any normal, healthy person can do. It requires no special equipment. Walking can give you many of the same benefits as jogging or running; it will just take longer. Jogging and running make your heart and lungs work harder than walking. They also put more stress on your legs and feet than walking does.
The problem with walking as a kind of exercise is that most people do not take it seriously. But there is a big difference between serious walking and the kind of walking that most of us do. Walking, like jogging, should have a steady and continuous motion.
If you are going to get your exercise by walking, you need to have your own walking program. After all, runners and joggers set goals for themselves. Walkers need goals, too.
Set a definite course to walk. Start by walking about 15-30 minutes a day. Build up your time and distance slowly. Try increasing your walking speed little by little.
If jogging or running is your sport, follow the same advice. Start off slowly. Spend most of the first few days just walking. Then start walking and running on the same day. Run or jog a short distance, then walk for a while, then run, then walk. Follow that pattern for 15-30 minutes a day. Slowly make each ran longer and each walk shorter. Later on, you can increase your distance，speed, and exercise time.
【題組】50. What is the purpose of the last paragraph?
(A) To give people advice on how to start a running program.
(B) To tell people how to develop a walking program for exercise.
(C) To introduce a new exercise program.
(D) To build up an inexpensive sports program for busy people.
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