我上大学原因英语作文【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.
我上大学原因英语作文【二】
（一）图像的解释
图像通常指image，icon，picture和它们的衍生词。在人类文明的历史上，图像先于文字产生，象形文字就是从图形变化来的，先有图再有字。自然界是人所面对的对象，图像是对自然的模仿，也是人类认识自然的方式。文字是图像的抽象化，是人类认识自然和交流信息的高级形态。人类对图像的接受是一种视觉的和饥渴，通过图像来识别很多东西，同时也可满足自己的一种审美要求。
图像输入策略是用来激励学习者学习语言的兴趣的，而兴趣又是基于理解之上的。否则，学习者的学习动机就不会被激发，从而导致对自己缺乏自信，甚至产生焦灼感。因此，教师在输入时，要尽可能选择学习者感兴趣的并能使他们自然灵活掌握的策进行图像输入，指有助于学生感性地理解语言材料的各种工具和方法，包括直观教具（用于课堂教学的视觉形象材料，如黑板、道具、实物等）和电化教学设备（利用光、聲、电原理设计的各种现代化视听工具，如幻灯、图影、录音机、录像机等）。这两类直观手段都能摆脱课堂教学时空的束缚，将各种生活情景生动活泼地展现在学生眼前，从而有利于学生感知和思维。它能提供大量真实逼真的语言交际情景，使教师传递的语言信息更具形象性、层次性、连贯性和逻辑性，有助于学生按逻辑顺序思维，加速对外语信息的理解和吸收；有助于学生对外语材料的感知、理解、吸收和内化，有助于强化学生的注意力，引导学生对知识的整理和归纳。学生在此状态下，兴趣浓，积极主动性高，注意力集中，思维敏捷，想象活跃，加速了语言输入的过程。
（二）创设运用语言情景
图像输入主要是用来创设情景的。学生在特定的情境中，其主动参与意识会更强。通过创设情景，学生一开始就进入口语合作的氛围，激发学生说话的兴趣，给学生提供语言交流的平台，使学生在情景中运用课文的套句、语汇，两人或多人一组进行表演。教师要将情景与日常生活结合起来，努力给学生创造一个心理自由和心理安全的环境，让他们抛开害羞、怯懦等不良情绪，积极主动地参与，充满隋感地倾诉。成功的外语课堂教学应在课内创设更多情景，让学生有机会运用自己所学的语言材料。那么如何创设语言情景呢？扩充教学手段，丰富课堂内容，提供学习示范是关键。可利用多种手段或媒体，如挂图、投影图片、录像、声音模拟等图像输入来创设语言情景。学生置身于这种情景之中，在教师的启发下便会情不自禁地想用所学的语言来表达自己的感受、看法、设想或者是疑问。这种疑问可以是关于语言情景方面的，也可以是关于语言表达遇到的各种障碍，或者是自己创设的由感而知的与主题有关的感受及设想，由此与主题相关的诸多内容也逐渐地丰富起来，学生应尽可能全面地用语言倾诉出来。
我上大学原因英语作文【三】
(1 模版1
Different people have different views on_____.Some people think that_____,whereas others aegue that __________.
As far as I am concerned, I agree with the opinion that ___________.For one thing,I firmly believe that ___________.For another,_____________.Just think of________,who/which_______.
Taking all these factors into consideration,we may safely come to the conclusion that______.Only if_______can we _______,just as the saying goes,________________.
(2模版2
In recent years there have been many reports of ________.It turns a new chapter of _________in China,and will have far-reaching effects in the forthcoming years.
The biggest benefit,in my eyes,is that_______.In addition,_______.Finally,______________.
Apart from the benefits mentioned above,we should also face several unavoidable challenges.In the first place,_____________.In the second place,________.What’s more,_______________.In summary,we should_______________.
(3模版3
Nowadays more and more ______are commonly and widely used in everyday life,ranging from __________to_____________.
The popularity of _______will have a great influence on ______.On the one hand,_________.On the other hand,__________.
To conclude,____________are just like a double-edged sword.With them we may________.However,one point should be kept in mind that we should make sensible use,always being a master instead of slaving of them.
