大学4级英语作文多少分【一】
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.
大学4级英语作文多少分【二】
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：
大学4级英语作文多少分【三】
“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。
大学4级英语作文多少分【四】
低于结束语一至二行，从信纸中间偏右的地方开始，在结束语的正下方，在签完名字的下面还要有用打字机打出的名字，以便识别。职务、职称可打在名字的下面。当然，写给亲朋好友的信，就不必再打了。
大学4级英语作文多少分【五】
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。
大学4级英语作文多少分【六】
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。
大学4级英语作文多少分【七】
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。
