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    Mick Polly，an owner of a toy store，lives with his teenage daughter Carolina in Kentucky．He is known as the Bike Man．Over the past five years，Mick has built hundreds of bikes for needy kids．

    One day in 2012，a 13﹣year﹣old boy with a broken bike walked by Mick's house．"I was working in my garage（车库），and he asked if I could fix it，"says Mick，now 53．

    The boy's bike had a broken wheel．Mick sent a post（帖子） on Facebook，asking his friends if they had the needed part．One friend saw the post and gave away two used bikes．Mick took parts from each to build a new set of wheels for the boy．

    Soon after，Mick repaired a bike for the boy's brother and fixed one for his sister．Word spread，and during the year，he had fixed up lots of bikes for local kids whose parents were not able to afford new ones．

    "People are throwing away bikes day and night，"says Mick．

    Mick puts the bikes and bike parts in his garage．"I take off the good tires or the handlebars or the seats and use them，"he says．

    Up to now，the bike man has repaired hundreds of bikes and given away nearly 700newly repaired bikes．They're free，but the kids must agree to two things：They have to learn how to put waste things to good use and they have to try their best to study in school．

    If a kid's grades are low，Mick requires a teacher's note"saying that you're doing your best，"Mick says．Mick also hopes the bikes will get kids off the sofa．"When I was growing up，we all rode our bikes，"he says．"Hopefully these kids can get some exercise．"

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Doctors SayMost Heart Disease Preventable

               Heart disease is the number one killer,worldwide, of men and women over the age of 60. But people of all ages die ofheart attacks each year. And while death rates have declined in the U．S. and many western European countries, they are on the risein the developing world.____ .

          No one would have guessed that Barbara Tengwould have a heart attack. She was not overweight. She did not smoke orexercise. “In 2004，the week after Iturned 49 ，when I was on abusiness trip in Chicago，Ihad a major heart attack，”shesaid.____. She now exercisesdaily, and monitors her heart health.

 Dr. Patrice Nickens, who is with the NationalHeart, Lung and Blood Institute, thinks that heart disease is 82 percentpreventable. “____，” she said.“Men are also facing the same problem, and thekey to staying healthy is knowing your numbers.”

 “Your weight, your blood cholesterol, bloodsugar and your blood pressure are important numbers that can help you takeaction and reduce your risk，”she said.

____.

    “And the steps to take are simple：don't smoke, maintain a healthy weight, exercise, know yournumbers and talk to your physician and control these risks，” she said.

 African­Americans are at higher­than­averagerisk for heart disease and stroke；peopledon't even know they have it, which increases the risk. Medstar WashingtonHospital Center is trying to reach this population.____. For example, helping the peoplemonitor their blood pressure. If people realize they are at risk for heartdisease, they'll make lifestyle changes: lose weight, exercise, eat the rightfoods and keep in touch with a doctor.

a．A healthy lifestyle can prevent heart disease

b．So we must cure heart disease

c．It is the leading cause of death for women

d．With the right training, they can play an important role incommunity health

e．And that changed her life

f．Lack of exercise causes heart attacks

g．Yet most heart disease is preventable