Dear sir/madam:

Hello,my name is Li Hua.I am 15 years old.I would like to be a volunteer.I am good at English.

I have a lot of hobbies,such as reading books,singing,playing the piano and so on.I usually deal with children,so I am good at talking.

I want to help the children learn English.

Best wishes!

Yours

Li Hua                                                                            

题目分析：这是一篇给材料作文。本文所给材料比较详细，我们要做的就是用正确的英语把这些内容表达出来。动笔前要认真阅读材料，不可遗漏要点，并适当发挥。根据材料内容可知本文主要是一般现在时态，主语是第一人称，注意时态与时间状语的搭配及主谓一致问题。写作中适当使用连词，注意上下文联系紧密，符合逻辑关系。

【亮点说明】这篇短文使用了大量的固定句式和短语，为文章增色不少。如：I would like to be a volunteer.I am good at English.such as reading books,and so on.deal with,I want to help the children learn English.等，学习中注意总结，牢记一些固定句式及短语，写作时就可以适当引用，使文章的表达更有逻辑性，更富有条理。