(B)
A marathon is a running event (赛事) with a distance of 42.195 km. It takes people a lot of time and energy to finish (结束). Why do people run a marathon? Here are some posts.

() 5. What is marathon?
A. A running event.
B. A sports meet.
C. A swimming club.
D. A running club.
() 6. According to Lisa, running a marathon is a good way to .
A. exercise
B. meet new people
C. travel
D. climb mountains
() 7. Why do people like the Midnight Sun Marathon?
A. People love mountains in Norway.
B. People run at night with the sun still in the sky.
C. People in Norway are kind and polite.
D. Norway has snow-capped mountains.
() 8. According to Leo, running a marathon can .
A. let people play
B. be easy for old people
C. help feel something new
D. help old people keep fit
() 9. What is the main idea of the passage?
A. People run a marathon for different reasons.
B. People can run a marathon at any age.
C. There are different marathons around the world.
D. There are only two reasons why we run a marathon.

5-9: ACBCA

【分析】本题为英语阅读理解题，需结合短文内容逐一分析各题目。先通读短文，明确Lisa和Leo关于马拉松的不同观点，再针对每个问题定位原文信息，选出正确答案。
【解析】5. 根据短文第一段“A marathon is a running event (赛事) with a distance of 42.195 km.”可知，马拉松是一项跑步赛事，对应选项A；6. Lisa的内容第一句提到“Some people run a marathon to travel.”，说明她认为跑马拉松是旅行的好方式，对应选项C；7. Lisa介绍午夜太阳马拉松时明确说明“People run at night with the sun still in the sky!”，这是该马拉松的独特之处，也是人们喜欢它的原因，对应选项B；8. Leo的内容第一句“Some people enjoy something new by running a marathon.”表明跑马拉松能让人体验新事物，对应选项C；9. 短文通过Lisa和Leo的分享，列举了人们跑马拉松的不同原因，主旨是人们跑马拉松有不同理由，对应选项A。
【答案】5-9: ACBCA
【知识点】英语阅读理解、细节理解、主旨大意
【点评】本题围绕马拉松展开，通过两个角色的分享考查学生对短文细节的提取和主旨的归纳，题型常规，需学生仔细阅读原文定位信息。
【难度系数】0.6