Self-introduction: I'm a classmate of Class XX, Grade Two, and I'm X years old this year. I hold the post of XX in my class. I am a child of XX, and I usually like to do XX (write about my favorite things, such as making friends, planting flowers and trees, etc. I also have many hobbies, such as (write some of your hobbies, such as reading, sports activities, participating in useful activities, etc. ) I have my own dreams, too. I want to be XX when I grow up. Finally, introduce: this is an ordinary me. Would you like to make friends with me?
This is basically the case, you can refer to it, I hope it will help you!