As we all know, life lies in movement. My favourite sport is running, because it keeps me fit and cheers me up easily. Last month, I took part in the school running race. I wanted to give up halfway, but my classmates cheered for me loudly. Finally, I finished the race. From running, I learn to stick to things. Sports bring us health and joy. Let's take exercise together!（段评：本段以运动为主题,通过学校跑步比赛的经历传达坚持的意义,主题积极健康,符合记叙文的情感导向。但存在以下不足:一是情节平铺直叙,缺乏细节张力,如比赛中的身体感受(腿像灌铅、呼吸急促)、同学加油的具体场景(谁喊的、声音如何)均未体现；二是心理变化刻画模糊,从"想放弃"到"坚持完成"的转变缺乏内心挣扎的描写；三是主题升华较生硬,"学会坚持"的感悟未与具体细节结合,显得空洞。修改版：常言道:生命在于运动。我最爱的运动是跑步,它总能让我在挥洒汗水中收获活力与快乐。上个月的校运会跑步比赛上,跑到中途时我的双腿像灌了铅,喉咙干得冒火,几乎要停下脚步。这时,跑道边的班长挥舞着班级旗帜大喊:"别放弃！我们在你身后！"同学们的加油声像暖流涌进心里,我咬着牙一步步往前挪,最终冲过了终点线。这次经历让我明白,坚持不是口号,是累到极致时还能迈出的那一步。运动带给我们的不仅是健康,更是面对困难的勇气。让我们一起动起来吧！）