My Brother

I have a brother. He is four years older than me. Now he is fifteen years old and is a student of Grade Nine. He is tall and handsome. His classmates like playing with him. He is very kind and helpful. He often helps me with my homework and gives me advice. We often play sports together, like basketball and football. He is a good athlete and loves to compete. In short, my brother is a wonderful person and I am very proud of him.

这篇作文描述了一个哥哥的形象，包括他的年龄、外貌、性格特点以及你们之间的互动和活动。你可以根据自己的实际情况进行修改和扩展，使作文更加个性化和生动。