阅读下列文段，完成表格。
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. Teenagers (青少年) can jog and people in their seventies or eighties can jog, too. They can jog anywhere. People jog around college campuses (校园), around houses, and in parks.
Jogging doesn't need any special (特别的) training. Do some warm-up exercises and then you are ready to start.
Jogging is good for health. It’s good for lungs and the heart. It is easy and convenient.
Sport
Jogging
History
Became popular (81) years ago
Participant (参与者)
People of any (82)
Place
Anywhere, around college campuses, houses and in (83)
Adcantages (优点)
Good for (84) and the heart, (85) and convenient
20/ twenty
网友回答
(答案→)20/ twenty
解析：
试题分析:
【小题1】细节理解题，根据文中语句“Jogging became popular about twenty years ago and now it is a favorite way of keeping fit for lots of people.”理解可知。慢跑有20年的发展历史了。
【小题2】细节理解题，根据文中语句“People of any age like to do it.”理解可知。这项活动适合任何年龄阶段。
【小题3】细节理解题，根据文中语句“They can jog anywhere. People jog around college campuses (校园), around houses, and in parks.”理解可知。慢跑可以在任何地方进行。
【小题4】细节理解题，根据文中语句“Jogging is good for health. It’s good for lungs and the heart.”理解可知。慢跑对肺部和心脏都有好处。
【小题5】细节理解题，根据文中语句“t is easy and convenient.”理解可知。慢跑简单又方便。