篇1：
Dear Colleagues：
As a teacher in Department of Biology, Nankai University, a leading university in China, I am very pleased to take this opportunity to recommend one of my favorite students to your PhD program.
In September, xxxx, Miss x was my students in General Biology, the first professional course they take in the field. She likes it very much. I teach her in an open and interactive manner, she is active and passionate about answering class questions. Miss x is bright, energetic and enthusiastic girl who loves speaking out her own ideas. She never escapes from those points of which she is skeptical. Apart from that, she often puts forward her ideas upon questions and exchanges all of her innovate ideas with me after class.
Upon ending of General Biology course, I asked my students to write an essay upon their understanding of biology. I discovered Miss x’s essay was so impressive and persuasive; her careful essay comes from dozens of references to Biology literatures. In essay Miss x stretched out her creative thinking upon status quo of biological research and branches in the field of biology. All of this speaks to her creative and logical and scientific thinking capability. I am gladly to say that Miss x has a clear understanding about General Biology, that comprehension has been reflected fully in her essay. Therefore Miss x got a full point for her essay in her class, and other students took it as model essay for granted.
I believe Miss x’s industriousness, passion and dedication will make her an ideal candidate you are seeking for your program, so I highly recommend her without any hesitation to you. And I will greatly appreciate it if you could accept her into your program.
Sincerely yours,
Prof. xxx
篇2：
尊敬的先生或女士：
您好，我叫xx，xxx公司的总经理。得知我公司优秀员工想要出国深造，我感到非常高兴和无比欣慰。在我看来这样一个上进的年轻人应该接受良好的教育拥有更辉煌的未来。因此，我很荣幸向贵校强烈推荐这位优秀的人才。
曾在大四的时候来我公司报告实习。他利于闲暇时间大量阅读参考有关业务的书籍，虚心向其他员工请教。渐渐地，他开始精通各项业务，并取得一定成绩。对此他并没有满足更没有骄傲自大。相反，遇到难题，他仍然虚心与同事交流讨论直到找出解决方案为止。鉴于他在实习期的出色表现，我公司招收他为正式员工(通常我公司不予考虑应届毕业生)。
现在，做为我公司的一名业务精英，工作更加认真，负责，努力。为所有同事树立了榜样。付出就有获得，他因此被评为本公司优秀员工，并享有高额奖金。
虽然从某种程度上来说，如此优秀的员工即将踏上留学之途了肯定是我公司的损失，但是考虑到他的前途，我依然毫不犹豫的支持他远赴贵校深造。真诚期望贵校能同样支持他，给他一个提升自己实现梦想的机会。谢谢。
此致
敬礼!
xxx
xxxx年xx月xx日