Dear Professor:
I understand that XXX is applying for admission to your Postgraduate Master’s Program, and has requested that I write this letter of recommendation for her.
I have known XXX as a resourceful and goal-oriented individual ever since she attended my Instrumental Analysis course(score:84) in her fourth academic semester. She often raised thought-provoking questions during the course lectures. Thus,it is natural that I like discussing with this young girl and enjoy becoming more familiar with her and her aspirations. In her sixth academic semester, she took my course of Electrochemical Analysis(score:89).The more I get to know her, the more I find she is talented at chemistry. With her outstanding talent and solid background in chemistry, she also did quite well in most of her other courses during her undergraduate study. I feel strongly that XXX’s unusual talents and abilities will stand her in good stead for a quality chemistry education, and your university will provide the best opportunities for her.
While at XXX University, XXX had excellent performances in all subjects of her studies and demonstrated great potential, but she is more than a knowledgable bookworm;she is an outstanding leader. She is not only the President of the Student Union in the College of Chemistry, but also the Minister of Commonweal Department of Students’ Association Union of XXX University. She is adept in speech and debate, which give her great capabilities for expression, abstract reasoning， and cooperation. She also took part in and organised many extracurricular activities, such as “Dream Fly” Party of College of Chemistry and Chemical Knowledge Contest of XXX University.
We at XXX University see an optimistic, highly independent， and easy-going character in XXX, with highly unusual determination. She is not to be defeated by any difficulties. She believes that , with hard work, she can achieve anything she wants. I think her confidence in herself is well grounded in her track record.
Judging by what I know of her, I think XXX is fully qualified to pursue a Master’s degree in your program. Therefore，I recommend her with much enthusiasm and I shall greatly appreciate your favorably consideration for her application for admission.
Sincerely.
拓展：英文求职信的语气句子
1、I think that I should probably make a good bookkeeper for you. 我想我可能成为贵公司的好簿记号。
2、I am confident that my experience and references will show you that I can fulfill the particular requirements of your bookkeeping position. 我想信我的经验和推荐人可以告诉您，我能够符合贵公司簿记员一职的特定需要。
3、I recently completed a course in filing at the Crosby School of Business. I am competent not only to install a filing system that will fulfill the needs of your organization, but I am also well qualified to operate it efficiently. 最近我在克洛斯比商业补习班读完一门档案处理的课程，我自信不仅可以设置一套档案人类系统符合您的要求，而且可以有效地操作。
4、I feel quite certain that as a result of the course in filing which I completed at the Crosby School of Business, I can install and operate efficiently a filing system for your organization. 我相信在克洛斯比商业实习班修完一门课后，我能够替贵公司设置并且操作一套档案分类系统。
第一句显得语气太弱，写信的人有点羞怯的样子。第二句有特殊风格，第三句太过自信，第四句，作者表示谦虚。从很多的求职信范本里面，我们都很难发现到有语气恶劣的。除非你的不是求职信而是恶搞信。