dear teacher ,
   i am writing to you to express my thanks for your help in learning english and speaking english.
   during these days in your class, i have learned much from you and it is very helpful to me. firstly, you let me know what is the west thinking pattern—straight thinking pattern. and, i think, it is very important to understand the west’s thoughts. as you know, this can help me with my examination and interaction with foreigners. secondly, i have got enough confidence in speaking in english from your class and it took  me a long time to gain this confidence. now, i always  express my ideas in english as possible as i can. it’s great to do that. the last not the least, i find that learning english is not an boring thing as before  and i’m interested in studying english which was just a necessary task to pass examinations. reading, listening or speaking all become interesting and i really enjoy it.
   above all, i want to say thanks again to you. and thank you for your time.
good luck！ 

亲爱的老师，

   我写此信向您表示感谢，感谢您在学习英语和说英语方面的帮助。

   在你们班的这几天，我从你们那里学到了很多，对我很有帮助。首先，你让我知道了西方思维模式是什么？。我认为，理解西方的思想是非常重要的。你知道，这可以帮助我的考试和与外国人的互动。其次，我有足够的信心在英语口语从您的类和我花了很长时间才能获得这个信心。现在，我总是尽可能地用英语表达我的想法。那样做太好了。最后，我发现学习英语并不像以前那样枯燥乏味，我对学习英语很感兴趣，学习英语只是通过考试的必要任务。阅读，听力或口语都变得有趣，我真的很喜欢它。

   最重要的是，我想再次感谢你。谢谢你的时间。

祝你好运！