英文論文的Introduction部分很重要：
Introduction部分應該包含以下三個部分
1. 問題的背景介紹
在這部分，你應該清晰地說明你研究的問題的背景是什麼。 最好給出近年來該問題在學術領域的發展情況。 但，也不能過長，簡潔爲主。最要控制在一頁內。對於一般15頁的學術論文，該部分佔一半的篇幅已經足夠。
2. 問題本身
如果沒有問題存在的意義，那就沒必要寫論文了，因爲完全沒理由看這樣的文章。因此，應該告訴審稿人爲什麼他應該看你寫的東西。 一句簡單的話像“到目前爲止，還沒有人研究過這樣的問題...”或“以上提到的方法不適合這種情況....”，有時這就足夠表明你想表達的原因。經驗表明，幾行就足以說明這部分了。
3. 提出的方法
現在，寫到這裏，你應該列出你論文的貢獻點。寫清楚你的創新點。因爲關於這個問題可能有成千上萬的人提出了方法，你不可能希望審稿人知道所有的方法。因此，突出你自己方法與別人方法不一樣的地方很重要。這也是你花時間的地方，但是我建議避免過多的細節描述。
以下兩部分可以結合具體情況決定是否添加：
4. 實驗結論
這一部分不是很好添加。我認爲這部分只有當你有一個強有力的結論時才添加。如你決定把這部分包括到Introduction中去，你應該儘量保持簡潔，儘量添加相應的其他部分的引用，並與Introduction中的其他部分區分開來。
5. 相關工作
我的建議是把這部分放在論文的結束，除非有更好的理由這樣做。舉一個把相關工作放在Introduction中的例子，這篇文章包括了相當多的相關工作，並且你想立刻說明你的方法與其他人的不同。...
6. 論文概要
我個人認爲，對於長文，這部分很有用。否則就是浪費紙張。
兩個額外的Tips：
保持每小部分的獨立性。
保持簡潔。刪除那些沒必要的廢話。
原文地址：http://www.win.tue.nl/~setalle/introduction.html
A Recipe for Writing an Introduction
An Introduction should contain the following three parts:1. Background.
In this part you have to make clear what the context is. Ideally, you should give an idea of the state-of-the art of the field the report is about. But keep it short: in my opinion this part should be less than a page long. Half a page should suffice in case of a normal 15-pages article.
2. The Problem.
If there was no problem, there would be no reason for writing a report, and definitely no reason for reading it. So, please tell the reviewer why she should proceed reading. A simple sentence like "So far no-one has investigated the link..." or "The above-mentioned solutions don't apply to the case ...", can sometimes be enough to clarify the point you want to get at. Experience shows that for this part a few lines are often sufficient.
3. The Proposed Solution.
Now - and only now! - you may outline the contribution of the report. Here you have to make sure you point out what are the novel aspects of your work. There are probably zillions of articles out there on that very subject: you can't expect the reviewer to know them all; so make his life easier and clearly highlight what is the difference between your method and the others. You can take your time here, but I suggest to avoid getting into too much detail.
4. An anticipation of the conclusions
This is very difficult to do properly. I think that this part should be there only in reports that have a strong position-statement nature. If you decide to include this into the introduction, you might want to (a) keep it as short as possible, (b) refer as much as possible to the concluding section, and (c) keep it well separated from the rest of the introduction.
5. Related work
My suggestion is to postpone this part to the end of the paper, unless there are good reasons for doing otherwise. For instance, one good reason for not following this suggestion is the presence in the literature of a very prominent related work, in which case you might want to give immediately an idea of what are the differences between your work and the prominent one. In general, though, I find it much easier to have a related works section at the end of the report: one reads it when he has already a good idea of the technical contribution. In this case, include in the introduction a line saying "Related works are discussed in Section ...".
6. The outline (plan of the paper)
Personally, I find it useful only for long reports, otherwise I think it is a waste of paper. But this is my very personal opinion.
Two Extra Tips
Keep the parts well separated.
Introductions in which parts 1&2&3 are not clearly separated from each other are usually very annoying, and are certainly much more demanding to the reviewer in terms concentration and energy. Use "itemize", if possible: it helps.
Keep it short.
Removing everything that is not really necessary is often a very effective strategy for improving an introduction.