My(Our) school Sports，学校的体育活动是多项，所以应该为sports，而不是sport。
There are many sports in our school.When we have a P.E. lesson,we will have sports.For example：play badminton,play basketball,play table tennis,run and so on.My favourite sport is playing …Because …I like having sports,and I often have sports,because I think it's interesting and it's good for my health.Do you like having sports?What are the sports in your school?

下面是一篇学校运动会的英语作文。
Every year, we have Sports Meeting. It is one of the biggest activities for us. Now it is coming soon. Everyone is getting ready for this.

Sports Meeting is interesting and exciting. I like it very much. There are many matches. I never joined the matches until last year. Last year , I went to join one thousand and five hundred metre race. It is too long for me to run it fast. So I am the last one of that group. This year , I am going to join eight hundred metre race. It is shorter than last year but it is more difficult. Everybody in this race will run faster, but if I run fast I can not get the destination. Because it is too tired for me to finish it. From liuxuepaper.com.

On the afternoon of November 18, we had the opening ceremony of the Fourth Dongzhou Middle School Sports Festival. Each class gave a wonderful performance. The next day, we had an exciting sports meeting. Many players were in it. All the others just watched them. Some were busy writing articles about it. The boys and girls 1500 metres races were the most exciting games. The relay races were exciting, too. Everyone cheered for the competitions. They did their best. When they scored for their own class, everyone was so excited that they jumped to their feet. The sports meeting didn’t end until four in the afternoon. We were tired but we are very happy.