Unit 3单元话题阅读理解专项练习(名校最新真题)（2022广东罗定邦中学高一期中）If you think that running marathons (马拉松) will help you live a long and healthy life, new research may come as a shock. According to a recent scientific study, people who do a very strenuous workout are as likely to die as people who do no exercise at all.Scientists in Denmark have been studying 1,000 joggers(慢跑者)and non-joggers for 12 years. The death rates from the sample group indicate that people who jog at a proper pace two or three times a
