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.
