Dear Admission Committee:
Miss Pan Bei requested a letter of recommendation from me to support her application for graduate program at your university. As her teacher, I am pleased to comply with her request.
I first got to know Miss Pan when she enrolled at university and I was the assistant director of her class at that time. Being a professor for several years, I noticed that due to the lack of self-learning ability, it is really challenging for students, even those performing excellent in senior school, to keep up with the college speed. However, as a diligent girl without any solid background in Computer Science before college, she adapted quickly to the especially competitive environment in our department. At the end of the first year, she earned the 5th rank in her class, while ranking 1st among the girls. I was fairly impressed by her self-learning technique and exceptional efforts. Hence, I believe, goal-oriented, not afraid of inchoateness and with persistence, she has the quality to make achievements.
What distinguished her among her classmates, I think, was that she went far beyond acquiring excellent scores in the exams and instead got her range of knowledge enlarged. In spring, 2006, Miss Pan took the course I taught named Algebraic Structures and Combinatorial Mathematics. This inquisitive and assiduous young woman was sometimes the last to leave after my class, raising novel questions related to the subject. I found that she understood the knowledge in depth and detail. Furthermore, I still remember during the spring vocation in May, due to the break-down of my mail box, I missed her mails to discussing some questions. But the following week during the course time, she asked me directly. Her zeal for knowledge and the spirit to explore answers really leave me a deep impression. Finally, she was among the few students who got almost full marks in every test in class which showed her exceeding grasp of every chapter. Thus, I gave her 98/100 for the excellent performance in my course.
In summary, I have every reason to believe that Miss. Pan will make outstanding performance at your university as a graduate. I would appreciate greatly if you give her a favorable consideration. Please feel free to contact me directly if more assistance is needed. Faithfully yours,
Wanling Qu, Professor
Department of Computer Science and technology Peking University
Email: qwku.edu.cn
万里长城是世界古代建筑的奇迹。早在春秋时期,楚国就修筑了长数百千米的非封闭性城墙,叫作方城。战国时,燕、赵、魏、韩、秦等都在边界筑起了长城。秦始皇统一天下后,把燕、赵、秦原有的北方长城连接起来,筑成西起临洮东至辽东的长城,长万余里。今山西大同北部,甘肃岷县城西等地均有秦长城遗址。
西汉沿河西走廊一带向西增筑朔方长城和河西长城,经玉门关延伸到今新疆境内,以保护河西走廊。北魏时西部柔然人满为患,又兴筑长城以防柔然人南侵。北齐也多次修筑长城。隋代为防御突厥、吐谷浑,数度修筑长城。明朝建立后,大将徐达曾18次在居庸关修筑长城。明长城西起甘肃嘉峪关,东至鸭绿江,这就是今天我们见到的万里长城。
明长城主体是城墙。山西东面至山海关一段,断面下宽上狭,平均底宽6米,高逾6.5米,外砌整齐条石和特大城砖,内部夯土。城墙顶部用三、四层砖铺砌,最上一层是方砖,用石灰勾缝,十分平正坚实,连野草也难以生根,平均宽5米,可容5马
并骑10人并进。墙顶两侧还砌有砖墙,内侧砌成约高1.5米的矮墙,外侧砌成约高1.5米的垛墙,每一垛牙上面有了望孔,下面有一射击眼。城墙上有排水沟、吐水嘴等设施,在关口和险要的地方还设有凸出的罗城。
修筑长城的工程浩大,筑长城所用土方如所来筑一道厚1米、高5米的墙,可绕地球一周有余。筑长城一般就地取材,大型城砖和石灰是就地烧制的。在高山峻岭,则开采石料,用石砌筑。在沙漠中,用红柳枝条和芦苇与砂石层层相间铺砌,可砌到6.5米以上。在黄土地区,大都取土垒筑,在重要地段的城墙一般用砖砌和条石镶砌
我的家乡在江南,是一个鱼米之乡。
我的家乡有一个美丽的旅游胜地,名叫香湖岛。春天的香湖岛是一个生机勃勃的地方,夏天的香湖岛是一个热闹非凡的地方,秋天的香湖岛是一个落叶缤纷的地方,冬天的香湖岛是一个白雪飘飘的地方。这就是香湖岛一年四季的情景。
我家乡的香湖岛,春天的香湖岛一片五彩缤纷,那到处鸟语花香、生机勃勃的。夏天的香湖岛那里面一片人山人海,到处都是游客,游客多的.都快要堵塞交通了。我们在这些游客之间穿梭,我差一点点被游客拥挤的都喘不过气来了。那里的九曲桥上也都挤满了人,我们连上也上不去,更别说在上面欣赏美丽的香湖岛景色了,我们只好耐心的等待旅客散去后才能再上去欣赏美丽的风景了。在一个小亭子里,看到了四个小凳子,但是好做了八个人呢,其中有四个妇女,一个妇女抱着一个小孩子,四个妇女一共抱了四个小孩子,只有这一个地方不是那么拥挤的。
在我们先进来走不久的地方有很多大大小小、各种颜色很美丽的荷花。有红色的,像被红色的染料染过一样;有黄色的,像被黄色的油漆漆过一样;还有白色的荷花,像冬天里的雪一样雪白。秋天的香湖岛哪里面一片黄色的情景,遍地都是黄色的落叶,,像是给地上铺盖了一层黄色的地毯。冬天的香湖岛那里一片白色的情景,一片白色的大雪,像是给香湖岛铺上了一层白色的棉絮。在我们离开的道路旁边有很多小的蘑菇形状的垃圾桶。
我们离开的大门旁边有一块非常大的石头,上面雕刻了三个大字:“香湖岛”并且涂上了非常鲜艳的红颜色,非常醒目耀眼。我恋恋不舍的离开了这美丽的香湖岛。每天晚上,我都会梦到,我么以前去美丽的香湖岛游玩的情景,真美丽啊!
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