求英语书面表达,词数150左右

Teachers and classmates ,good morning. My name is zhang bin , 15years old, come from beijing. I 'm very pleasure join in the green travel summer camp activity. what is more,this activity is very meaningful to me , because my favorite course in class is biology. Therefore, I think that I would not only enjoy canadian fresh air and blue sky,but acquire more biological knowlege as well. at last ,I wish every body will have a good time and enjoy this exprience . thanks very much.