——读《金冠的秘密》有感
前几天,我读了一则故事。其内容是,古希腊的一位科学家叫阿基米徳,他在一次洗澡时发现了水的浮力原理。据此,他解开了金冠的秘密。原理是:拿两只大小都相等的罐子,把金冠和一个与它同样重的金块,分别放入装满水的罐子里。水从罐子溢出时,用两个盘子接着,再把两盘水称一下。若放金冠的罐子溢出的水多,说明金冠不是纯金的。这个故事给我的启示是:处处留心皆学问。
世界上的万事万物,都有它自身存在和运行的规律。这些规律有许多我们并不知道。要认识世界,掌握规律,学到知识,就要去留心观察。如果不留心,知识永远不会自动跑到我们的头脑中来。有一次,我家的窗户上结了冰。爸爸问我是怎么回事。我随口说道:“不就是热胀冷缩嘛!”爸爸告诉我要注意观察。经过一次次的观察思考,我才发现了其中的秘密。原来,暧空气遇到冷玻璃形成了水珠,晚上气温下降就结了冰。
我们许多人都洗过澡,为什么阿基米德洗澡的时候,就知道怎么解开金冠的迷呢?阿基米德并不比我们多长一个脑袋,也不多长一只胳膊。他发现水的浮力,是因为他留心观察,才得出结论。如果不留心,他洗一万次澡也不会知道什么是水的浮力。有的同学可能会说:“书本上学到的知识我们没有留心观察,不也掌握了,你说的处处留心皆学问不全对。”其实,书本上的知识也是前人留心观察的结果。就说我们学的地球引力吧,它就是牛顿留心观察发现的。有一次,牛顿坐在苹果树下看书,一只苹果掉在了他的头上,他想为什么苹果不往上掉呢?他留心了这个问题,才知道了地球的引力。
没有一项发明是睡觉睡出来的。我想:一个人只要勤于观察、 勤于思考、勤于试验,不怕失败,就一定能取得成功。
写这种没有约束的“自由”的读后感,不少人比写的读后感要生动、实在,原因就在于“自由”二字,如果你在考试作文时,也保持这种轻松自由的心态,恐怕写出来的作文要多得不少分。仅从这一点分析,经常写一些“自由”的读后感,是不是可以减少你在考试时的紧张的不正常的心理压力,使作文写得更好呢?
在“读”与“感”的关系中,“读”是“感”的前提、基础;“感”是“读”的延伸或者说结果。必须先“读”而后“感”,不“读”则无“感”。因此,要写读后感首先要读懂原文,要准确把握原文的基本内容,正确理解原文的中心思想和关键语句的含义,深入体会作者的写作目的和文中表达的思想感情。
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
写读后感最重要的一点是要读出所读书籍或者文章的“眼睛”,它是你展开来写的基础、中心和出发点,这个问题我们已经在上一讲里说过了,这里就不多讲了。其次,写读后感,有它一定的规矩,有的书上把它归纳为“引、议、联、结”,四个字,想公式一样。对于这些规矩我们不可以不学,考试时只要内容有创意,套用这种公式未尝不可;但我们也不要受其所限,写成千篇一律的“八股文”,也可尝试在结构上有自己的创意,有自己的个性。但不管怎样,读后感也离不开“读”——对原文的引述、概括、评价等等,离不开“感”——自己的感想。只要把这两个字表达好了,就是好的读后感。
关于读后感的一般写法,我们来学习《中考作文辅导》下册的相关章节。
November 24, 1998
Dear Mr. Bao:
尊敬的包先生:
By this letter I am resigning my position as Quality Engineer, effective immediately.
我写信目的是通知您我要辞去质量工程师的职位,并且立即生效。
Recent circumstances incompatible1 with my personal beliefs and styles require that I change my employment.
最近公司发生的一些事情有悖我个人的理念及风格,驱使我更换工作。
I appreciate the opportunity to work and learn at ABC Company.
能有机会在ABC公司工作学习,我感到不胜感激。
Sincerely,
Li Da Hua
My favourite swimmer is Sun Yang.He swims very fast.He took part in the last Olympic Games.He is my hero.
He is 21 years oid.He is very tall.He is 198cm tall.He is cute.I love him.
He is good at swingming very much, He has had all-round success in his study olypic games.
November **, ****
To Whom It May Concern:
This is to confirm that Mr. Li Dashui has worked as a full-time system analyst in the NY University since Jun 1994(or This letter is to verify that Mr. Li Dashui worked as an chemist from July 1993 to Sept. 1994. Mr. Lis main duties and responsibilities are as follows:
Design, develop and install various computer hardware, software and network systems for banks.
Determine and analyze the requirements of each system project into related componets solved through the application of computer technology.
Write specifications for computer programs, and test and implement programs for network systems and control systems.
Supervise computer programmers and other system analysts for paticular system projects.
Mr. Li has mainly taken part in the following projects:
The first engineering design of city general business computer network system.
Upgrading banks system for IBM AS/400 E45 to IBM AS/400 320, IBM AS/400 530.
The design development and test of city general business computer network system.
The design and development network and database systems for the Golden Credit Card Project.
Mr. Li is well experienced with IBM AS/400 system analysis, TCP/IP protocol, SNA protocol and LAN; proficient in RPGIII, VB, C/C++ and DB2, and skilled in UNIX, Informix, Client/Server etc.
Mr. Li is a hard-working and talented analyst, and is highly respected member in our company. If you need further information, please feel free to contact me. Sincerely yours, Singature, Zhang Jianguo
Senior Engineer and Technical Manage Company Name, Address, Tex Fax
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