Dear Sir or Madam:

(第一段先表明寫信的目的)

I am very pleased to write this recommendation for Zhang San (張三）one of my favorite students, so as to support his application for admission into the master program.

(第二段寫你們認(rèn)識(shí)的過(guò)程，或你對(duì)他的看法，主要想表達(dá)的意思是，你和他很熟，說(shuō)的都是真的）

The first time I met Zhang was in the course of the Pyrotechnic and Propellant. Zhang always sat in the frontrow and actively discussed with me after class, he exhibited a keenly whetted mind during discussions, the attitude and ability help him to get an A grade for scoresof 94. At the end of the course, I served as his supervisorin the Curriculum Design of the Pyrotechnic and Propellant. He impressed me in the process of the Curriculum Design, he could make a good schedule, keptin touch with me, communicated and gave a summarization every day. He summarized the advantages and disadvantages of all airbags existed in the course, made many experiments, and finally put forward a new formula. He and their group also proposed a method to reduce the traffic accident by adding sensors to identify the driver’s facial expressions during driving, then the sensors will trig the airbag or alarm before the accident.

（第三段是總結(jié)，一是對(duì)學(xué)生評(píng)價(jià)的總結(jié)，二是再次表明你的意圖）

In my experience with Zhang San I was impressed with not only his extraordinary intelligence but also his ambitions and persistence, he maybe not a genius, but is the hardest one. I am sure that Zhang will be an outstanding student in the future. Thus, I would like to support him firmly in his quest recommendation into account when considering his application. I would greatly appreciate it you decide to accept him as he wishes. Please do not hesitate to contact me if I can be of further assistance.

Best Regards!

某某（你的大名）