问题补充：
Doing exercise can help people keep healthy. Do you often jog(慢跑)? Jogging became popular about twenty years ago and now it is a favorite way of keeping fit for lots of people. People of any age like to do it. Children can jog and old people can jog, too. They can jog anywhere. People jog around college(大学), around houses, and in parks.
Jogging doesn’t need any training. Do some warm-up exercises(热身练习) and then you are ready to start.
Jogging is good for health. It is good for lungs and the heart. It is easy and convenient(方便的).
根据短文内容，完成下面的表格。（每空词数不限）
Sport
jogging
History
became popular 【小题1】ago
Participant(参与者)
people 【小题2】like to do it
Place
anywhere, around college and houses and in 【小题3】.
Advantage(优点)
good for lungs and the 【小题4】, 【小题5】and convenient.
about twenty years
答案：
(答案→)about twenty years
解析：本文内容为，做运动可以保持健康。其中，慢跑从前开始流行，至今是人们最喜爱的保健的方式。慢跑这项运动不分老少，不分地点，也不需要任何训练。只要做一些热身练习就可以开始了。慢跑对肺和心脏有好处。它既简单又方便。
【小题1】根据原文第一段Jogging became popular about twenty years ago 可知慢跑的历史是从前开始的。因此填twenty years ago。
【小题2】根据原文第一段 People of any age like to do it. Children can jog and old people can jog, too. 可知任意年龄的人都适宜慢跑。因此填 of any age。
【小题3】根据原文第一段People jog around college(大学), around houses, and in parks. 可知 除了学校，房子里 还有公园。所以填parks。
【小题4】根据原文最后一段 It is good for lungs and the heart. 可以得知慢跑对肺和心脏好。所以填heart。
【小题5】根据原文最后一段 It is easy and convenient(方便的). 慢跑时简单方便的。所以填easy。
