Dear Mr Li,
I'm your student, Li Hua. I'm now studying in an ideal high school. After entering high school, I think the way to learn English is very different from junior high school. When I started learning English, I felt that high school English was much more difficult than junior high school, and almost lost confidence. I once heard you say, learning English can improve people's accomplishment.
After I was in high school, I realized the importance of learning english. I study English every day, for example, every Wednesday, I will have an English listening training. Every day when the class is over, I will ask my teachers and classmates for more learning methods. After a long term of hard work, I have made great progress in English and become more and more interested in english!
Yours,
Li Hua
译文：
亲爱的李先生：
我是您的学生，李华。我现在在理想的高中学校读书。 进入高中后，我觉得学英语的方式和初中有很大不同。 我开始学英语的时候，觉得高中英语比初中英语难很多，几乎丧失信心。我曾经听您说过，学习英语能提高人的修养。
我在读高中后，认识到了学习英语的重要性。我每天都在学习英语，例如，每到周三，我都会进行一次英语听力训练。每天下课的时候，我都会向老师和同学请教更多的学习方法。 经过长达一个学期的努力后，我现在在英语上取得很大的进步，对英语越来越感兴趣啦!
真诚的，
李华