[解析]
Dear Ms Chen,
I'm Li Hua,a student from Class2,Grade 3.I'm writing to apply for the position as a student volunteer.(意图)
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.(目的)
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 the assistant to my English teacher.【高分句型】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.(条件)【高分句型】
I am sure that I can perfectly live up to your expectations.I will be grateful if you could give me a kind consideration.
Looking forward to your reply.
Yours truly,
Li Hua