71-year-old Guan Jingxue, a native of Benxi, Liaoning Province, started running in a playground near a factory with the aim of     1     (增强他的免疫系统) years ago. At the time, few people in China went     2     (jog) in groups to keep fit. It was then that Guan found that members of a running group often     3     (gather) in the playground for training, and he finally joined them. At the first six months, he found it difficult to     4     (跟上) the others. However, with his effort over a long time he slowly felt quite comfortable with the pace (步调) of their training. Every day he     5     (提醒) himself that he     6     (应该) keep on. After years of training he could finish long-distance running at a fast speed.

Three years earlier, Guan went to Beijing to take care of his granddaughter, where he joined Yuandadu Marathon Club. Being a runner, he spent little on     7     (装备). He just pressed on to improve himself and began to     8     (报名) for the     9     (每年的) Beijing Marathon. In the 2019 Beijing Marathon, Guan     10     (惊人地) finished second among those over 65.

Thanks to some of my doctor’s t    1     I began to take exercise a year ago. I’m not the exercising kind of person and have a busy life, so I wasn’t sure if I would be able to fit exercise into schedule     2     (定期地). However, I drew up a detailed training plan and successfully exercised three times a week for a whole year. At last, I became     3     (amaze) at the results. I started off with walks, and now I am c    4     of running five kilometres w    5     an hour. I’m now feeling so much fitter and even the doctor says that my efforts have put me       6     (健康状况良好). I’m excited that my hard work has     7     (奏效).

However, the reason why I am writing this is not primarily because of the physical health     8    (益处). Instead, I want to explain the very positive effect that exercise has had on my mind. A quick look online shows that it is widely accepted that exercise is good for both your body and mind. For example, exercise can increase blood f    9     and o    10     to the brain, and     11     (预防疾病) effectively. Meanwhile, it can also     12     (缓解疼痛) or stress, and develop confidence.