Dear Sir or Madam:

Thank you for taking your time to read my letter. with the coming of the Fortune Global Forum, I’d like very much to be a volunteer as a citizen of Nan Chang.

All our citizens are hosts for this special event. Above all , I promise I should be devoted to serving our foreign guests from all over the world. Besides, I have a rich knowledge about Chinese history, so I will not only serve but also be a carrier for our wonderful culture. What’s more, English as an international language will play an important role in communication  during the forum, and I major in English and am good at it. I can express myself fluently and clearly in English.

To sum up, I believe I can be a qualified volunteer. I will value it and do all I can if I could be accepted to be one.

题目分析：这是一篇提纲类书面表达，文章的要点也基本上都给出来了，而且很具体，考生要把要点解释清楚，不能有遗漏。在写作的过程中，要注意使用高级词汇和高级句型，如强调句，倒装句等，让文章更上档次。同时在列举措施的时候要使用合适的连接词如：First，second， Besides, What’s more等，让文章看起来很有条理，也很流畅。本篇文章在写作时不要啰嗦，力求简洁。

【亮点说明】所给范文语言简洁，运用了一些词组：Above all 首要的是, be devoted to doing致力于，not only … but also…，不但…而且…，play an important role in在…方面起着重要的作用，major in主修，To sum up总之, 句式上的亮点：I will value it and do all I can if I could be accepted to be one. 这句话用了定语从句。

还有范文还使用了Besides, What’s more,这样的关联词使文章更加顺畅。