二三事，即兴

"小朋友们，今天我们要讲一个关于二三事的故事。"教室里响起了一阵欢快的笑声，李老师发话道，这声笑声很耳熟，是昨天二年级的考试作弊事件。"二年级的时候，我们班有个叫小明的小朋友，他 always study late， never go to school on time. When exams came, he always left school early， didn't do his homework， and even played video games all day long. His parents were worried about his academic performance， but they never spoke about it.三年级的时候，小明的情况发生了变化，他总是认真地复习，按时做作业，还经常和同学打打闹闹，他的成绩从年级前十位提高到了年级前十。"这节课，我们不仅听到了这个有趣的故事，还通过小明的故事，让我们看到了二三事之间的不同。"