写男孩的英语作文可以根据不同的主题和细节来展开。以下是一个关于男孩的英语作文示例，涵盖了基本信息和性格特点：

A Kind and Smart Boy

I have a good friend who is a boy. His name is John. He is 12 years old and lives in a small town near my house. John is a kind and smart boy. He is always ready to help others, especially those in need.

One day, I saw John bringing food to some homeless dogs and cats. He has a big heart and cares about animals very much. I also heard that he is very good at his studies. He gets excellent grades in all his subjects, including English.

John is not only smart but also very polite. He always says "hello" and "thank you" to everyone he meets. He has many friends at school and they all like him. They often play games and study together after school.

I admire John very much. He is a role model for me and I hope to be like him when I grow up.

这个作文提供了关于男孩的基本信息，如名字、年龄和住址，并描述了他的性格特点，如善良、聪明和礼貌。同时，通过举例说明了他如何帮助他人和在学校中的表现，使作文更加生动和具体。你可以根据自己的需要调整作文内容，添加更多细节来丰富文章。