yesterday i read a book the name of the book is《dr bethune》.
dr bethune was a famous doctor from canada. in 1938 he came to china. at that time china was at war with japan. he worked as a doctor in the chinese army and saved many soldiers’ lives. he worked very hard and became sick. dr bethune died in 1939. he was only 49 years old. he was a good man and we remember him today.
i think the book is very very good!
written by wu qingxiang
mar. 31
how to do research
——reading after a science paper
these days i am busy preparing my dissertation which is about web usage mining . i read some english papers and learnt much from them . and now i want to say something about a paper titled “web usage mining:discovery and applications of usage patterns from web data”.
this is the first english paper i read about dissertation and gave me great help .
this paper is a review about web usage mining. it introduced web usage mining in detail . although it is a little old for it was published in its contents are very useful today . it is organized according to the sequence of web usage mining and the six main parts are introduction which tells me what is web usage mining the sources and abstraction of web data the three steps of web usage mining taxonomy and project survey websift overview privacy issues . the third and fourth parts are most important . it had a list of existing project about web usage mining which i saw many times in other papers but this paper is the one creating this list . besides it has been referred for more then twenty times . as we all know that the higher the referred number is the more important the paper is so i consider this paper to be an important and successful one in this region.
in my opinion the success of this paper dues to three reasons . the first reason is the profound computer knowledge owned by the authors . web usage mining relates to many subjects such as artificial intelligence ontology semantic analysis but the most basic knowledge is computer science . the four authors are all professors of department of computer science and engineering in university of minnesota . for myself i am not major in computer science and i am not very good at computers so i feel a little difficult to understand technologies used in this region.
second they had read a large number of papers before they wrote this paper . there are fifty nine references listed after main contents . “stand on the shoulders of giants” this sentence tell us a truth : one can never successful all by oneself . and what’s more learn from others can save a lot of time and energy especially for us new learner . how to learn from others is a skill all of us should master but learning doesn’t mean copy or plagiary . other people’s knowledge and production is just our foundation upon this foundation we must have our own thoughts and creation. there are many remarks in this paper where referred other’s production.
third the authors had the experience of developing a web usage mining project . they don’t just engage in idle theorizing so their comprehension on this issue is greatly profound. they know what we may meet in a real project development and they know how to resolve them . after reading this paper i also read some other papers written in chinese . some of them are not based on real project and can not give useful resolution . websift is the name of system they developed which can be used to data mining and analysis .
i wrote this article not only because it gave me much help in preparing my dissertation but also because it tells me how to study and how to do research . honesty and preciseness are two essential making a researcher must have . hard-working is the necessary condition leading to success . this is just the beginning of my dissertation i should learn from these four authors both their knowledge and their attitude to study.
其中在一般的社交信中,信内收信人的地址通常省略,但是在公务信函中不能。将收信人的姓名、地址等写在信头日期下方的左角上,要求与对信头的要求一样,不必再写日期。例如:
Dear Mercy,
亲爱的梅斯,
How is everything going! Last time you said you are anxious now because you find it hard to learn English well. Don’t worry. I think you have to improve your English step by step. And I will right behind you. In my view, you should develop you interest on English first. According to my experience, I think watching English movie, listen to some wonderful English songs and talk in English on the Internet would be helpful. Secondly, you have to prepare lessons before class that will help you understand what the teacher says in the class. I know you feel bored in the class, but you have force yourself to be concentrated. A few days later you will feel it a little easy to learn English. The left steps I will tell next time. By the way, we have not seen each other since your family move to Hunan a year ago. Have you ever thought about going back to visit me and learn English together in the coming Summer vacation. Looking forward to your reply.
过得可好。上次你说你现在很焦虑因为你觉得很难学好英语。别担心。我觉得要提高英语你得一步步来。我会帮你的。在我看来,首先应该要培养你对英语的兴趣。根据我的经验,我认为看英文电影,听美妙的英文歌曲以及在互联网上与他人用英语交流会有很大的帮助。其次,你要预习,这样可以让你理解老师在课堂上说的东西。我知道你觉得上英语课很无聊,但你必须强迫自己聚精会神的听。一段时间后,你会感觉到学习英语变得容易些了。剩下的步骤下一次我会告诉你的。顺便提一下,自从一年前你们家搬到湖南后我们就没见过面。你有没有想过暑假的时候回来看看我,我们可以一起学习英语。期待你的回复。
Best wishes,
Li
信头是指发信人的姓名(单位名称、地址和日期,一般写在信纸的右上角。一般公函或商业信函的信纸上都印有单位或公司的名称、地址、电话号码等,因此就只需在信头下面的右边写上写信日期就可以了。
英文地址的写法与中文完全不同,地址的名称按从小到大的顺序:第一行写门牌号码和街名;第二行写县、市、省、州、邮编、国名;然后再写日期。标点符号一般在每一行的末尾都不用,但在每一行的之间,该用的还要用,例如在写日期的时候。
其中日期的写法,如1997年7月30日,英文为:july 30,1997(最为普遍;july 30th,1997;30th july,1997等。1997不可写成97。
位置在下面称呼语隔一行,是信的核心部分。因此要求正文层次分明、简单易懂。和中文信不同的\'是,正文中一般不用hello!(你好!
正文有缩进式和齐头式两种。每段书信第一行的第一个字母稍微向右缩进些,通常以五个字母为宜,每段第二行从左面顶格写起,这就是缩进式。
但美国人写信各段落往往不用缩进式,用齐头式,即每一行都从左面顶格写起。商务信件大都采用齐头式的写法。
当新学期来临时,许多学生对新生活表现得很兴奋。在大学,新生快乐地享受着自由。在接下来的四年里,他们希望过着高中描绘的\'美好生活。但事实是,大学生活中有很多东西要学。
First, the major knowledge occupies the most important role. As a student, learning knowledge is their job, while many students focus on playing cellphone in the class, or just sleep. They lose interest in studying when they come to the free environment. Mastering the professional skill helps them to be competitive. The sad thing is that most of them can't realize it.
首先,专业知识占据着最重要的角色。作为一名学生,学习知识是他们的工作,而很多学生在课堂上玩手机,或者睡觉。当他们来到自由的环境后对学习失去了兴趣。掌握专业技能帮助他们提高竞争力,可悲的是,大多数人没有意识到这一点。
Second, as there is much free time, they can make use of it and gain the valuable experience. Students can join some clubs to develop more interest, or find part-time jobs. It is better than to stay in the dorm and play computer games all the time.
第二,由于空闲时间多,他们可以充分利用好这些时间,并从中获得宝贵的经验。学生可以参加一些活动来发展更多的兴趣爱好,或找份兼职工作。比呆在宿舍玩电脑游戏好多了。
A lot of students feel lost in the campus, because they don't plan campus life well. The things you learn will make you different in the future.
很多学生因为没有计划好校园生活在所以迷失了。所学到的东西会让你在未来有所作为。
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