假設你是紅星中學高三學生李華。你在學校網站上看到國際部將舉辦"低碳生活方式"推廣活動，正在招募活動宣傳大使，請你用英語給相關負責人寫一封自薦信，內容包括：
1．說明對低碳生活的認識；
2．介紹個人優勢。
提示詞：'宣傳大使 ambassador
注意：1．詞數100左右；
2．開頭和結尾已給出，不計入總詞數。
Dear Sir or Madam，
                                                                                                                                                    
Sincerely，
Li Hua

【考點】提綱作文．

【答案】Dear Sir or Madam，
   I am Li Hua，a senior student in Hongxing Middle School.Knowing on the school website that the International Department is recruiting an ambassador for a promotion activity of "low-carbon lifestyle" ，I am writing to apply to be one.
   In my view，with the aim of achieving carbon neutrality，the low carbon lifestyle can contribute to the sustainable development of our earth.I think every individual should raise the awareness of environmental protection and live a green life by saving water，electricity and sorting waste.
   I think I am qualified for this position.As president of the Students' Union，I am thought highly of by my teachers and classmates for communication skills and work efficiency.Besides，I practice what I advocate，like refusing to use disposable chopsticks，which shows my better understanding of the low carbon life.
   I would appreciate it if you could give me an opportunity.Looking forward to your reply.
Yours，
Li Hua