1. I like playing soccer with my friends during recess. （我喜欢在课间与朋友们一起踢足球。）

2. We practice running and jumping in our physical education class. （我们在体育课上练习跑步和跳跃。）

3. My favorite sport is basketball. （我最喜欢的运动是篮球。）

4. Sports is a school of life. （运动是人生的必修课。）

5. Win or lose, we are the best. （无论输赢，我们都是最棒的。）

6. Win in a sports game is a matter of practice and hard work. （在体育比赛中获胜是训练和努力工作的结果。）

7. When autumn comes, our school will hold the sports meeting. I will be very excited about the big event. （当秋天来临的时候，我们学校将会举行运动会。我会对这次大型活动感到非常兴奋。）

8. I like sports so much. When I was very small, my father took me to watch the basketball match, and it inspired many students to be active. （我非常喜欢运动。当我还很小的时候，我父亲带我去看了篮球比赛，这激发了众多学生变得活跃。）

9. The school’s annual sports meeting is about to start. This sports meeting has made us look forward to playing our sports strengths. （学校年度运动会即将开始。这次运动会让我们期待展示我们的体育实力。）

10. Last week we had the school sports meet on our school sports ground. All my classmates took active parts in it. Sometimes we watched the sports games closely. Sometimes we gave loud cheers to the sports members. （上周我们在学校操场上举行了运动会。我所有的同学都积极参与。有时我们密切观看比赛，有时我们为运动员大声欢呼。）

希望这些句子能帮助三年级的学生更好地参与和描述运动会。