目前学校正在讨论是否应变单一的教学体制为立体式教学――除单一课本授课外、采用多媒体及网络教学。请写一封信给学校报社说明你对此的看法。内容应涉及传统教学方法的局限性，立体教学优越性和局限性，二者互为补充。

范文：

A letter to the University Newspaper on ChangingTeaching System

Dec, 23, 2006

Dear Sirs,

I’m sending you this letter to offer my opinionsregarding whether we should change traditionallyunitaryteaching system into a tri-dimensional one,which has recently become a heated issue in your paper.

In my view, both traditional teaching and tri-dimensional one have their advantages anddisadvantages. While traditional teaching does have such limit as restricting students’ vision, itoffers a face-to-face communication between teachers and students that no other teachingcan provide. Similarly, while tri-dimensional teaching offers a more convenient way ofstudying, it will somehow make students more passive simply because they have noopportunity to speak out.

Personally I think it would be better to integrate these two teaching methods so as to fullyutilize their advantages and avoid their disadvantages.