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.
“Father and son” is a very famous comic book, I know about it from one of my neighbor by accident. At first I laught at the ugly images of the characters, but I am surprised by the contents at last. The book talks about lots of funny scenes and the daily life between a father and his son. The son is quite naughty and always makes some a little trouble for his dad. But sometimes the boy is lovely and does some moving things. It shows us the amusing stories and the love between the father and son at the same time. However the most impressed thing is that the author who finished these funny and soothing pictures, lived in German’s wartime. Knowing of that special social background, I realize the optimistic spirit from this book. It became one of my collecting, I would never been losing interest with it and I even read it times by times for encouraging myself when I am in sadness.
《父与子》是一本十分有名的漫画故事书,我偶然间从邻居那里看到这本书。起初我觉得书中丑丑的人物十分好笑,可最后它的内容给我个惊喜。这本书展示的是关于一对父子之间日常生活的有趣的.情景画面,书中的男孩十分的调皮,总是给父亲找点小麻烦做些小恶作剧,然而有时儿子又十分的可爱,也会做些令人感动的事。这本书在讲述有趣的故事的同时也让我们看到了这对父子之间温馨的爱意。然而最令我影响深刻的是完成这部幽默又抚慰人心的作品的作者竟然生活在战争时期的德国。在了解这本作品完成的特殊社会背景后,我才到书中作者透露出的乐观精神。现在这本书成为我收藏书籍之一,书中的故事永远不会让我觉得无趣,甚至在我遇上伤心事时候,我常常拿出来看看鼓励自己。
如果一封信写完了,突然又想起遗漏的事情,这时用p.s.表示,再写上遗漏的话即可,要长话短说。通常在信末签名下面几行的左方,应于正文齐头。
注意:在正式的信函中,应避免使用附言。
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:
如果信件里面有附件,可在信纸的左下角,注上encl:或enc:,例如:encl:2 photos(内附两张照片。如果福建附件不止一项,应写成encl:或encs。
我们有时可看到在称呼与正文之间有re:或subject:(事由字样。一般在信纸的中间,也可与“称呼”对齐。还应在底下加横线,以引起读信人的注意,使收信人便于在读信之前就可了解信中的主要内容。事由一般在公务信函中使用,也可以省略。
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。
是写信人对收信人的称呼用语。位置在信内地址下方一、二行的地方,从该行的顶格写起,在称呼后面一般用逗号(英国式,也可以用冒号(美国式。
(1写给亲人、亲戚和关系密切的朋友时,用dear或my dear再加上表示亲属关系的称呼或直称其名(这里指名字,不是姓氏。例如:my dear father,dear tom等。
(2写给公务上的信函用dear madam,dear sir或gentleman(gentlemen。注意:dear纯属公务上往来的客气形式。gentlemen总是以复数形式出现,前不加dear,是dear sir的复数形式。
(3写给收信人的信,也可用头衔、职位、职称、学位等再加姓氏或姓氏和名字。例如:dear prof. tim scales, dear dr.john smith。
i have never been to troy, but david maule made me feel as if i were standing on the high wall of troy, watching the fierce war. thanks to this british author, who adapted the famous homer’s poem into a lively story, i found it easier to understand this story. though the story happened over 3000 years ago in a remote place, i was deeply fascinated by it.
the mysterious plot is one of the reasons why i loved the story of troy so much, yet i am more interested in the human heroes of the war.
hector was the eldest son of king of troy, priam. he was not only a real hero of trojan, but was regarded the highest moral hero in greek classic by later historians. the war started because of the mischief of his brother, paris, whom he didn’t appreciate. however, since hector was the commander of the trojan army, he was obliged to fight with all force. it was really a tragedy that such a valiant man died in the duel with another great warrior, achilles.
it is natural to see death in a war. as a famous chinese parable says, “a life can be as slight as a piece of feather, or as weighty as mount tai.” sometimes, one’s glory walks hand in hand with one’s doom. achilles was such a typical person. his personal charm made the story of troy more attractive. he was so crucial because his every appearance in a war encouraged his fellow soldiers and terrified the enemies. actually, achilles was half-god who was almost invincible in people’s mind. that’s why his name was memorized long after his death.
besides the two great men, the wisdom of odysseus also proved him to be a great hero. he didn’t want to attend the war because he was happily married and had a lovely son. however, since his country was allied to mycenae, he had to take the command given by the king of mycenae. i’m quite sure that the story of the wooden horse is widely known, however, few people know who thought of the brilliant idea, that’s why i admired odysseus so much because he was the person who got the idea. thanks to the horse, the ten-year war came to an end at last. if you want to know how the wooden horse worked, just read the book.
the ancient greeks believed that the gods and goddesses also played important roles in the origin, process and ending of the whole story.
the story of the golden apple was such an example. when eris, the goddess of argument and disagreement, threw out the golden apple to a wedding ceremony on mount olympus, a dispute happened. hera, the queen of gods, athena, the goddess of wisdom, and aphrodite, the goddess of love and beauty, were all involved in the argument for the apple. none of them was willing to give way, so they turned to paris for a final judgment. tempted by aphrodite’s beauty and promise, paris handed the apple to her. to keep her word, aphrodite helped him to get helen, the most beautiful woman in the world, as his wife. that was the cause of the war.
paris’s choice obviously annoyed the other two goddesses. so during the war, they helped the greek alliance army while some other gods, such as apollo and aphrodite, guarded troy. when paris dueled with helen’s former husband menelaus, aphrodite saved paris when he was about to be finished off.
after the duel between those two people, there was a truce between the greek alliance and troy. however, both hera and athena were not happy to see it. hera pursued her husband zeus:“ now, will you send athena to make the troyjans break the peace?”(page 22 then with zeus’s permission, athena went down to start the war again and finally she brought the greeks to success.
from the whole story, we can see that in ancient greeks’ view, gods sometimes played a much more important role in their life. however, with the rapid development of science, we have learned that the greek gods never existed. this is why a recent movie of troy has not mentioned a single god. everything happened due to men’s ambition, love, loyalty or jealousy. with those emotion and people’s effort, we human beings can accomplish wonders and be master of the world.
god are of less importance than they used to be. nonetheless, the gods and goddesses made the story of troy more mysterious and marvelous.
i have learnt from the book more than the wonderful story of history, love and war. i believe that human can determine their destiny by their own. i highly recommend this book to my friends.
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