写作要点：
1.表示写信意图；
2.陈述应征目的；
3.说明应征条件（性格、能力等）。
写作要求：
1.邮件词数不少于100；
2.开头和结尾部分已写好，不计入总词数；
3.可根据情况增加细节，使行文连贯
4.不能使用真实姓名和学校名称。
’m writing to apply for the position as a student volunteer.
I really want to obtain this precious opportunity because, by offering my service, I will be able to improve my organizational ability, communication skills as well as my confidence in speaking English in public.
As an outgoing girl, I get along well with my classmates. Besides, I have such a good command of English that I am elected as assistant to my English teacher. Successfully, I have lent a helping hand to her in several English activities of my class, which have been appreciated by both teachers and classmates.
I am sure that I can perfectly live up to your expectations. I will be grateful if you could give me a kind consideration.