众文网1.求篇字数1000左右的英语论文
Computer Science Computer science (or computing science) is the study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems. It is frequently described as the systematic study of algorithmic processes that describe and transform information. According to Peter J. Denning, the fundamental question underlying computer science is, "What can be (efficiently) automated?" Computer science has many sub-fields; some, such as computer graphics, emphasize the computation of specific results, while others, such as computational complexity theory, study the properties of computational problems. Still others focus on the challenges in implementing computations. For example, programming language theory studies approaches to describing computations, while computer programming applies specific programming languages to solve specific computational problems, and human-computer interaction focuses on the challenges in making computers and computations useful, usable, and universally accessible to people.The general public sometimes confuses computer science with vocational areas that deal with computers (such as information technology), or think that it relates to their own experience of computers, which typically involves activities such as gaming, web-browsing, and word-processing. However, the focus of computer science is more on understanding the properties of the programs used to implement software such as games and web-browsers, and using that understanding to create new programs or improve existing ones.History The early foundations of what would become computer science predate the invention of the modern digital computer. Machines for calculating fixed numerical tasks, such as the abacus, have existed since antiquity. Wilhelm Schickard built the first mechanical calculator in 1623. Charles Babbage designed a difference engine in Victorian times helped by Ada Lovelace. Around 1900, punch-card machines were introduced. However, all of these machines were constrained to perform a single task, or at best some subset of all possible tasks.During the 1940s, as newer and more powerful computing machines were developed, the term computer came to refer to the machines rather than their human predecessors. As it became clear that computers could be used for more than just mathematical calculations, the field of computer science broadened to study computation in general. Computer science began to be established as a distinct academic discipline in the 1950s and early 1960s, with the creation of the first computer science departments and degree programs. Since practical computers became available, many applications of computing have become distinct areas of study in their own right.Although many initially believed it impossible that computers themselves could actually be a scientific field of study, in the late fifties it gradually became accepted among the greater academic population. It is the now well-known IBM brand that formed part of the computer science revolution during this time. IBM (short for International Business Machines) released the IBM 704 and later the IBM 709 computers, which were widely used during the exploration period of such devices. "Still, working with the IBM [computer] was frustrating。
if you had misplaced as much as one letter in one instruction, the program would crash, and you would have to start the whole process over again". During the late 1950s, the computer science discipline was very much in its developmental stages, and such issues were commonplace.Time has seen significant improvements in the usability and effectiveness of computer science technology. Modern society has seen a significant shift from computers being used solely by experts or professionals to a more widespread user base.Major Achievements Despite its relatively short history as a formal academic discipline, computer science has made a number of fundamental contributions to science and society. These include:Started the "digital revolution", which includes the current Information Age and the Internet. A formal definition of computation and computability, and proof that there are computationally unsolvable and intractable problems. The concept of a programming language, a tool for the precise expression of methodological information at various levels of abstraction. In cryptography, breaking the Enigma machine was an important factor contributing to the Allied victory in World War II. Scientific computing 。
2.写一篇英语800字小论文
In modern society, we tend to become more and more aware of our living environment or physical environment, because we is not clean as before. So many people now choose their house as to its environment but not its location and expenses to afford it. As we all know, the environment pollution is more and more serious during these years, what we could do is to make great efforts in protecting environment gradually. As to government pollution, as to common people. We also try to protect it and make it remain clean. Although we have managed to protect the environment to a certain extent. It is still a very long way to go. The phoenix Mountain is a place of interest. Every day, it welcome a great many visitors. Years ago, a few people didn`t care about environment protection there. For example, waste paper, plastic bags and tins carelessly disposed could be seen everywhere. A few visitors not only killed animals, caught birds, but also picked up flowers and dug trees. What`s more, some of them set fire for cooking in the woods. People showed a real concern over the problem . And fortunately, measures have been taken to deal with the problem. As a result, the environment there has changed. For example, the visitors take away their rubbish. They do not hunt any more. Besides, people protect trees and all kinds of plants. Futhermore, all the tourists bring their food for lnch by themselves in order not to cause fire. Now ,it is more beautiful than before. We must sing high praise for the good deeds. man and environment the world we live in is becoming more and more intolerable because of environmental destruction. bird flu and sars are two typical examples that environmental destruction may threaten our life. besides, forest destruction , water and air pollution result in decrease of planting land and unpleasant weather. serious as the problem seems, we can come up with some measures to deal with it. first of all, the authorities should adopt the policy of “sustainable development”, and laws concerning environmental protection should be put into effect and enforced strictly just as our government has been doing. what' s more, every citizen should realize the seriousness of the problem and make concerted efforts to protect our environment. in addition, planting trees helps improve and beautify the environment.。
3.写毕业论文时怎样把摘要翻译为英文
With the national economic development, polymeric materials have been around us everywhere, polymer materials products have become the youngest material. It not only throughout various industries, and has access to all the family, its production has more than metal materials trends, will be the most active material pillar. PVC polyvinyl chloride, is one of the polymers, but also the world's largest plastic products, cheap, widely used, is the modern society indispensable polymer materials, and has a very good development prospect.。
4.英语论文范文
How to improve your English in full detail (my experience) The Third Edition To be good at English is not particularly easy but not terribly hard either.Before you start to learn sentences, or new words, the first and also the most important step is the "pronunciation". To pronounce perfectly you should buy a tape to assist you to learn and practise. This is the fundamental step to learn English, ignore or pay no attention to this step; you will not learn proper English and you will find the later steps more and more difficult. If you are solid and accurate in pronunciation, you will find the later steps much easier and you will stand firmly on the right track.After mastering the pronunciation perfectly, it is the time to accumulate new words and useful expressions. Of course start from the simplest words like “hello, hi, you, me, he, him, his, her”, etc。
. and expressions like “how are you, how old are you, how do you do”, etc。
. It is essential to write the words on a piece of paper so that you remember them well. Actually everyone had done these at his/her primary school.*************Now let me tell you how I learnt English in China. ******************* Speaking:In China, you won't have enough chances to speak English. What I did was in the morning I got up early and read aloud the texts in the textbooks. The initial aim was to achieve the same speed as the tape, and then being able to read aloud the texts with the same style as the English announcer in the tape. By doing this, it helps you to consolidate your pronunciation and grammar.Listening:Nowadays it is much easier to learn English in China because you can watch some TV channels in English. The more channels in English the better because you can choose your preferred programmes and it helps you to learn English with interests of your own, hence ideal for listening and expression/words accumulations.Writing:It is also very useful to write diaries. On writing diaries, it is not useful if you just write it without the care of grammar and spelling. When you finish you should always read your diaries again to check for errors and refine your sentences (e.g. remove repetitive words, use better expressions, and sort out the structure of the sentences).Reading:It is also very important to read story books in English, starting from thin ones with not many new words. Read as many thin books as you possibly can. Little by Little you will want to read thicker books, and your reading ability will get even better.Putting four elements together:I have to emphasise that when you do all these reading, listening, writing and speaking; you should join them together as a whole, apply the new words you learn from watching TV, reading books to your writing and speaking.The enhancement of learning comes from getting hold of the possible opportunities to speak English (in China or abroad):In China, you should try to go to local English corner to practise your oral English. If you are abroad then you should make a lot of English or international friends so you always have the opportunity to speak English.On Spoken English, attitude is very important. You need to be very keen and you must not be shy. Never be afraid to make mistakes. Always think that a talk in English with some one will help you significantly.You can think in this way: since my parents have paid so much to support me to study abroad, the money is partly spent on the international environment for learning English; therefore I ought to try my best to take every opportunity to practise my English. My English has risen to a higher level in the last 2 years, because I talk in English most of the time. Having some international friends is particularly useful indeed. Summing up the activities:I have also been watching TV too. The real improvement lies in staying with international friends long enough and watching a lot of TV such as news, football, dramas, documentaries etc。
. Writing diaries also helps me to remember good words, good expressions and practise sentence structuring.*****Now, I have finished talking about how to learn and improve General English.It is the time to switch to "Your Major in English" ******************************* Knowing general English on its own is not going to be sufficient for most people. Skills are as important as mastering another language. General English helps people to communicate with each other in their lives. Technical English helps you to take on challenges to change the world for the highest, to earn money for your living for the lower.Some people who have a degree in English go abroad to learn something different but heavily based on the language such as Media study, 。
5.毕业论文摘要英文翻译
Since our reform and opening to the world, china has been make great strides forward and change greatly in all fields such as economy, culture and politics .when its comes to culture,the strides are showed on the rise of female's educational level and The ratio of female in universities and colleges.even the ratio reach up to 50%.we know that the graduated students is one of the main part of job hunters.The inequalities between the sexes were mirrored in social life ,especially in obtaining employment .
The inequalities between is obvious, most of company would like to choose male instead of female when meeting the same condition interviewee, and female often given lower salary compare with male when doing the same work in the same company according to sex determination. It is worthwhile to note that female are more likely restricted and aggression in gender inequality in obtaining employment.gender inequality effect female's development and future, neglect social integration, harm social cooperation of genders, which lead to consequence seriously such as the lack of coordination between male and female, sound development and the normal operation . the root cause of these problems include sexual discrimination, employing units exist prejudice and angular impression involved in different vocations and some personal reasons from students as professional choice and mental qualities.in order to resolve these problems, we need the public change those angular impressions, employing units
broad vision with development. Meanwhile, as students, who need build health personality and learn more useful knowledge.
The paper will analyze and discuss
the phenomenon of gender inequality of universities and college students in china ,and
conclude some effective Issues and Countermeasures
6.英文论文怎么写introduction
通常introduction不要太长，占总字数的10%左右即可。
以下截自Wordvice的英文写作资源页面[Introduction]The Introduction consists of an opening line. This openingline can be a generalization about life that pertains to your topic. It can alsobe a quotation. Another segway into the introduction is to start it with alittle anecdote (or story). By "breaking the ice" so to speak withthe reader, you are luring him or her into the rest of your essay, making itaccessible and intriguing. Once you have "introduced" theIntroductory paragraph with a generalization, quotation, or anecdote, you canwrite vaguely for a few sentences or simply jump into the crust of theargument. When you feel you are ready to introduce the specific focus of theessay, then you write the thesis statement. The thesis statement shouldgenerally come at the end of the Introductory Paragraph. If you are writingabout a particular book, author, or event, you should name it (in entirety) inthe thesis statement. You should also list your argument with its supportingevidence in this sentence. Essentially, the thesis statement is your taglinefor the essay and the final sentence of the Introduction.
7.英语毕业论文范文“how to improve the ability of english reading ”
Some people think that reading is a verysimple matter. You move your eyes along the line, and the author's message appears somehow in your mind. When a person is highly skilled as a reader, it does seem that something like that takes place. However, the actual reading process is quite complicated. Try to think back when you were first learning to read, or observe a young child learning to read. It is a very difficult, complex, sometimes, painful process. Reduced to its simplest elements, we might say that comprehension is a part of the communication process of getting the thoughts that were in the author's mind into the reader's, but how does one reader can get the idea clearly? It depends on the reading ability of the reader's. How can the readers make improvements in reading? There are many skills to improve one's ability of reading comprehension. One of the most important skills in reading is the knowledge of word .The number of the words you know determines the difficulty and complexity of the material you can read and understand. If you have an extremely limited reading vocabulary, you will be able to read only very simple material. Obviously, vocabulary forms a stumbling block for the poor reader. The more words you memorize, the faster you read the article. So, it is necessary to memorize words as much as you can. By the way, it should be realized that approximately half of all written English material is composed of the 300 commonest words. Certain words then have a very high occurrence and are used over and over again. Since the English vocabulary is so vast, you cannot hope to master vocabulary only by learning your lessons in the classroom. Reading of course involves much more than simply knowing the dictionary meaning of individual words. When coping with unknown vocabulary. You have to develop strategies, which will allow you either to discover the meaning of the words or at least to proceed further with the text in spite of not knowing the meanings of some new words. One of the efficient ways is guessing the unknown vocabulary. Guessing the meaning of words is a shortcut in reading. While reading in our own language, we usually have an unconscious habit of making logical inference as to the meaning of words based on the context. You can use the context to get the meaning and to help you develop the comprehension skills. To be a good reader, deducing the meaning of unfamiliar lexical items through contextual lines is necessary. In order to improve reading ability. It's essential to memorize words and master the ways of guessing the meaning of words, besides, when reading, you should catch the phrases as a unit of meaning and view the sentences as a unit of meaning. Sentences are the basic building blocks for writing something that will be read. A sentence, as a larger unit of meaning, is always about something--its subject--and always has a statement about the subject. The form of a sentence may be vary, but the subject and the statement about it are always there. The idea conveyed by a sentence will always come to you as a whole. So being familiar with various sentence patterns and being able to have a good sense of what is conveyed by a sentence, even a very long one with some clauses inside, will be helpful for a more mature and efficient reading. So do the paragraph and passage. But the paragraph and passage are more complex than the sentence. A paragraph has sentences that are connected with each other in some logical ways and a passage is the connection of the paragraphs.。