阅读下面短文，并根据短文后的要求答题。
Walking is a popular form of exercise. It is an easy activity and offers a good way
to improve physical fitness. Walking also gives many of the same benefits as other kinds
of exercise.
Regular, brisk walks help a person's body work better. Walking builds a stronger heart
and healthier lungs. The heart pumps blood through the body. It gets more rest between
beats. Walking also seems to help protect the heart from heart diseases. The lungs work
better because they take in and use oxygen more effectively. Walking can help , too. A
quick fifteen-minute walk buns as many calories as jogging the same distance in half the
time. Walking causes very few injuries. So there is also a lower "dropout" rate among
walkers than among runners. People are more likely to continue a walking program. This
gives a better chance for success.
Walking offers some mental benefits, too. It seems to make people feel better. Many
walkers say they sleep better at night when they take regular walks. Others say they have
a better attitude about life.
Walking offers many of the same physical and mental benefits as other forms of
exercise, but walking offers some special advantages, too.
★Almost everyone can walk. There are no special lessons of coaching. To become a
serious walker, a person only needs to walk faster, farther and more often.
★People can walk almost anywhere. There are no special playing fields or courts for
walking. Sidewalks, streets, parks, fields and malls are excellent places for walking.
★People can walk almost anytime. A person doesn't need a team or a partner for
walking. There is no "season" for walking. Most walkers walk in all kinds of weather.
★Walking doesn't cost anything. There are no special fees for walking. Good walking
shoes and comfortable clothes are only equipment that a walker needs.
Walking offers a form of exercise within the reach of nearly everyone. With a little
time and effort, people can rediscover a valuable form of exercise and improve their
fitness.
1. What's the best title of the passage? (within 10 words)
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2. Which sentence in the passage can be replaced by the following one?
Comparing with running, more people can continue walking as a form of exercise.
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3. Please fill in the blank in the 2nd paragraph with proper words or phrases. (within 10
words)
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4. Among the special advantages of walking, which one do you think is the most important?
Why (within 30 words)
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5. Translate the underlined sentence into Chinese.
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