Dear Miss Jiang,
尊敬的蒋老师：您好！
I am writing to share my ideas about our English class.
我写信是想和你谈谈我对英语课的想法。
Now, our main material in the class is the textbook, which is reasonable.
现在我们上课用的主要材料是课本，这是合理的。
But I think we can get some other resources, such as English magazines, songs, movies and so on.
但是我认为我们可以获取一些其他资源，比如英语杂志，歌曲，电影等等。
We can learn the basic knowledge from out textbook, and get some more from other materials.

我们可以从课本上学到基本的知识，同时从其他材料获取更多知识。
In addition, those materials are more authentic and practical, which will be useful to our learning.
另外，那些材料更真实和实用，这对于我们的学习会有好处的。
Besides, by doing so, we can get more fun from learning and develop our interest to English.
此外，通过这样做我们可以从学习中获得更多乐趣从而培养我们对英语的兴趣。
Please take good consideration of my advice. Thank you!
请您认真考虑我的建议，谢谢！
Sincerely yours Bella
贝拉