提交到turnitin查重系统中有很大部分是essay。本站整理了一些如何写essay的系列文章。这篇文章主要是讲解如何写好类比型或者分类型的论文（Classification Essay）。
就像名称所说，这一类的Essay是要给几项事物或概念分类。分类要有逻辑，有规律可循，对于各个类别要给出具体的例子。
例：Write an essay discussing any three types of “网红” in China.
这一类的文章主要注意以下几点：
1. 这篇文章的论点是什么，论点应该要怎样展开叙述？
2. 分类的方式要遵循一个统一的原则，并且要解释为什么按照这个原则分类。
3. 在叙述论点或文章内容的时候要问自己是否有足够的例子或证据证明每一个论点，它们分别是什么，最好自己建一个像下图一样的表把它们记录下来。
4. 最后，结论是否起到总结全文的作用，是否让读者了解这篇文章的主要走向和中心思想。
In a classification essay, we organize things into categories and give examples of things that fit into each category. For example, if you choose to write about types of computers (PCs and servers), each of your developmental paragraphs will define the characteristics of a different computer type.
Classification criteria:
Before writing, it is necessary to decide on the classification criteria. We should think according to what properties we are going to classify things. The criteria must be discriminating and the emerging classes should be non-overlapping.
In the sample essay about types of computers, the computers are classified according to their functions and capabilities, as:
Sample essay analysis
| topic: 5 types of computers | criteria: their functions | and capabilities |
| 1. PC | general use by a single person | desktop: permanent
laptop: portable |
| 2. Workstation | used for 3D graphics, game development | powerful microprocessor, additional memory and enhanced capabilities |
| 3. Server | used to provide services to other computers | have powerful processors, lots of memory and large hard drives |
| 4. Main frame | used in business | enables hundreds of people to work together |
| 5. Super computer | used for jobs that take massive amounts of calculating | very powerful |
Organization:
The introduction of a classification essay is quite straightforward. In the thesis statement, you mention that there are (number) types of (something) according to their (properties).
In the developmental paragraphs, you need to define each type you mentioned in the thesis. You may also need to show the similarities and/or differences of these types. Giving examples would enable your readers to understand better.
Language:
The common transitions used while classifying are the first kind / type / group, the second kind / type / group, the third kind / type / group.
