【答案解析】Dear Sir or Madam, I am writing this letter concerning the sports training scheme offered by your organization. I am currently a student in Tsinghua University. With only 7 classes each week, I have plenty of time to participate in sports training. I am interested in learning swimming. Swimming is my favorite sport because it can help me keep in shape efficiently and relax easily after a long day of study. Whenever I see water. I feel calm. Swimming in the pool makes me feel like a free fish. Thank you for reading this letter and I am looking forward to your reply. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Sincerely Yours, 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Li Ming