november 30, 2003to whom it may concern:i have worked with pei yi for one and a half years since he began the principal fund project in 2002. i think he has developed a mature character as a young academic research worker. pei yi is a very diligent student in our lab. he is almost the last one leaving the lab every day. to acquaint himself with the work more quickly, he chose my graduate course: electron physics. though he has an excellent scholastic aptitude, i was afraid that the course was a little difficult for an undergraduate student. as things went by, i found my worry was quite unnecessary. he studied relevant courses such as quantum mechanics by himself and got the highest score for my course. an intelligent young man with hard-working spirit can always live a fruitful and effective life.im deeply impressed by his ability to work independently. i was very busy last year for official work, and have little time to guide him. however every time i see him, he was working or reading in the lab. he told me that he learned by himself through reading the academic journal and learned from other groups in our laboratory. in addition, he has a strong desire for good quality of academic work. he attended every seminar and had a successful corporation with researchers from other groups.a flexible and adaptable people can do any work assigned to him, so does mr. pei. during the period of his principal fund research, he established the suitable model for field emission, and finished the simulation of space charge effect. he also made prominent progress on calculation of field-enhancement factor and wrote two papers. one paper is accepted by series of the first principal fund papers and another paper is to be submitted to an international journal. this is also a demonstration of his science and english ability.sincerely yoursgangming zhangprofessor of physicselectronicsdepartment of electronicspeking universitybeijing 100871, p. r. chinaphone: (8610)6275 1773e-mail: zgminpku.edu.cn(english teacher)chinese international school, singaporetelephone: 86-email:december 5, 2012re: chen yifanto whom it may concern,this reference letter is tendered on behalf of yifan chen, who has earned a highly favorable reference from me, due to his outstanding performance at chinese international school. i have known yifan for over two years as a student in my english class. he has demonstrated proficiency in all aspects of her english class and has achieved success in our school academically, and also has shown excellent personal growth and intellectual curiosity during his time here.yifans dedication to developing his language skills and his desire to acquire knowledge in a variety of fields has led him to be an asset to every classroom situation. he has an intense thirst for knowledge, the spirit of enrnest study and a positive attitude with independent thinking towards learning to explore. he usually focuses attention on training the basic knowledge and accumulating bit by bit. he often has interaction with teachers to discuss problems, expressed own views aggressively. i firmly believeyifans excellent english proficiency will suit him well for studying abroad.i find yifan chen is an excellent team player, and a natural leader. i often divide the class into several groups, asking them to do team assignments. yifan can cooperate effectively with all members of his team, and knows how to identify and utilize everyones specialbest regards1to whom it may concern,mentor2dear colleagues:i have known ms. zhang since 2003, when she was admitted as a master of science candidate into the school. as her research adviser, i directed her research and found her a promising youth radiating with intelligence and creativity. during her first year, she got a very good record in major courses and earned good scores major and general gpa 3.3. she particularly enjoyed challenging areas of studies such as quantum chemistry and theory of electrochemistry.materials project for his degree thesis theoretical study of electronic structures of several representative metal element in the hydrotalcite slabs. to make the theory model meet the actual materials, she faced down many practical problems, such as building reasonable module of inorganic materials, and calculation techniques. working hard and independently, she cracked the problems one by one, and came up with a thesis that was characterized by academic excellence. during her m.s. period, she had three papers published in international journals.judging by her outstanding performance while she studied with me, i am convinced that ms. zhang has acquired the knowledge and intellectual sophistication on the basis of which she can undertake world-class training. i therefore lend her my enthusiastic support and would app