Opening
I am writing to recommend myself as a qualified candidate for the job of (the position that you are applying) that you have advertised (in newspaper, on web site...).
Body
1.Your concise CV (Curriculum vitae) + your portfolio if applicable,
usually including three parts:
1)Educational Background (keep concise)
2)Professional Experiences (keep concise)
3)Interests & Skills
2.Personalities
3.Personal statement (keep concise)
Ending
Attached please find my CV that outlines in details. I am looking forward to hearing from you at your earliest convenience. Any favourable consideration of my application, particularly a personal interview, will be highly appreciated.
就這么簡單！
但是要注意用詞的禮貌和尊重。不要像和朋友講話那么隨便。
信寫好了，其實也能提高你的口語能力。