二、中间段：
在具体展开原因时，可以从主次的角度来展开：
mainly owing to the fact that ...and partly due to the fact that ...(主要原因是...次要原因是...)
例如，这次题目二就可以直接套用：
The activity organized by the campus is the most meaningful for me mainly owing to the fact that it can strengthen our body and partly due to the fact that it makes me realize the spirit of teamwork.(由学校组织的体育比赛对我来讲是非常有意义的，主要原因是由于它有助于增强我们的身体素质，次要原因是由于它让我们意识到了团队精神。)
作文中能写出这样的句子，无疑属于高分亮点句。