60秒英语自我介绍,请各位大神看看有没有错的地方.

60秒英语自我介绍,请各位大神看看有没有错的地方.
Hello,everyone,my name is xxx,i come from xxx school.Today,i'm very honored to stand here and take part in the game.Before that ,i have never take part in games like this,so i think most of people don't know me ,let me introduce you something about myself.
I'm fourteen years old,if you look me short and thin,you are wrong.My body is strong,and my grade of PE is very good.I don't like reading very much,but i like reading some beautiful and esoteric articles.You may think my favourite subject is Chinese,but Math is my favourite subject,because i think math can make my brain get better,and when i solve a hard math exercise,i always feel very happy.
i have two hobbies.On the weekend,i like to play computer games and play badminton.Playing computer games doesn't affect my study,it is just an entertainment for me.Most students in our class like playing basketball,but i like paying badminton,i can get lots of happiness from it,and I'm very good at it ,too.
That's all for my self-introduction,i hope i can get good grade.
请各位大神看看这篇文章有没有错的地方.