鉴于B节短文写作部分题型较复杂，考生把握起来更加困难，本章将进一步分析这一部分作文的写作模式。虽然硕士研究生入学考试英语作文部分有着严格的命题要求，题材范围非常广泛，而且自采用图表（画）式作文后，提纲要求也产生了一些变化，但是，通过认真分析和研究历年试题可以发现，不管作文的命题形式如何变化，提纲要求如何变化，总的命题思路并没有发生重大变化。从这一点出发，我们就可以从中找到一些规律，并按照这些规律，摸索出考研英语作文(议论文写作部分)的写作模式。有了这些写作模式，再加上熟悉和掌握一些相应的常用句型，考生就能够提高作文得分。
英语作文(应用文除外，下同)大多可以采用“三段式”模式，具体可描述为：
开始段： 引言句＋扩展句＋主旨句
中间段： 主题句＋过渡词１＋要点１＋论据１
＋过渡词２＋要点２＋论据２
＋过渡词３＋要点３＋论据３
结束段： 过渡词＋总结句＋扩展句
这一基本模式可以根据不同的题目内容和命题方式演化为下面这些具体的考研英语作文的写作模式，如：
开始段： 谈某一个问题
中间段： 分析原因或可能产生的后果
结束段： 提出解决方案或建议
1现象解释模式
这一模式主要适用于现象解释型作文的写作。如1993年（关于电视广告），1995年（关于希望工程），2002年（关于文化的融合），2003年（关于子女教育问题），2005(关于赡养老人问题)等试题都可以按照这一模式来写。其他可套用这一写作模式的话题还有：出国留学热、学外语热、工人下岗、盗版、独生子女、人口增长等。
现象解释模式可以具体描述为：开始段介绍现象的普及程度。中间段解释产生这种现象的原因或意义。解释原因可以从社会和个人两个方面入手；若是谈这种现象的意义，也可着重谈其与社会及个人的关系。结束段表明态度或提出建议。
1) 介绍现象普及程度的句型
Nowadays/Recently, there has been a growing/widespread concern among the general public over.
Nowadays/Recently, it becomes increasingly common for people/us to see/find.
Nowadays/Recently, an increasing number of people become extremely concerned over.
Nowadays/Recently, much attention/emphasis has been put/placed on.
Recent years have witnessed/experienced an increasing number/amount of.
Recently the phenomenon ofhas aroused public/worldwide attention.
Recently the phenomenon of/rise inhas aroused general/international concern.
2) 解释原因的句型
There may be a combination of factors which contribute to/are responsible for/explain.
The widespreadofmay be due to/attributed to.
There may be several possible reasons forwhich will be demonstrated below.
There may bea number of
a combination of
a variety ofreasons for thisdramatic
significant
markeddecline/change in
as illustrated below.
A combination/number of factors may contribute to/account for.
Its no easy/simple task to offer the reasons for this phenomenon which involves more than one complicated factor.
The explanation for this phenomenon involves many complicated factors.
The mainly stems from
is chiefly caused by
is largely due toseveral possible factors.
We may attribute theto.
3) 解释另一原因的句型
Among all the important/convincing reasons for, one should be emphasized.
One of the most common/popular reasons foris that.
Of course, theis not by itself an adequate explanation for.
Of course, thedoes not in itself explain/account for.
4) 表明态度或提出建议的句型
As the issue plays such an important part in both society and our life, due/more attention should be paid to it.
As the issue has a farreaching influence on both society and our life, due/more attention should be paid to it.
Despite the advantages of, there are also some disadvantages that cannot be ignored.
Whatever the reason, does have much influence on our life.
5) 常用词汇和短语
concern, attention, emphasis, development, growth, account for, due to, explain, contribute to, attribute to, change, increase, rise, decline 等。
参考范文1：
Advertisements on TVToday, it has become increasingly common for people to see advertisements on TV. Whenever we turn on our television, we will see various kinds of advertisements. When we are absorbed in a wonderful TV program, advertisements will interrupt at any time and will be very annoying.
There may be two main reasons for the increasing number of ads on TV. To begin with, in a competitive economy, a variety of products are similar to each other in quality and price. As consumers have more choices, with increasing brands of the same product, manufacturers want to convince consumers that their products are better. Secondly, when a new product is available on the market, the manufacturer would like to inform consumers and to tell them how good their products are. Some consumers are interested in this kind of service because they wish to get firsthand information of new products so they can choose the one they like best. All these have led to the sharp increase in advertisements on TV.
It cannot be denied that advertisements have much influence on our life. However, ads also have some bad influences. For instance, they may lead us to buy what we do not really want. Some ads do not tell the truth. So sometimes consumers may feel being cheated when they buy a product whose quality does not live up to what is advertised. So, in my opinion, consumers should hold a rational attitude toward advertisement on TV.
参考范文2：
Project HopeIn recent years, there has been a widespread concern about Project Hopes campaign which is now being conducted in our country. The project aims at providing underprivileged children with tuition fees, setting up new primary schools, and supplying poorly equipped schools with better facilities so that schoolagers in remote rural areas may have the opportunity to receive education.
The reasons that much concern is placed upon Project Hope may be demonstrated below. In the first place, Project Hope brings hope to thousands of children who have dropped out of school because of financial difficulties. As we all know, schooling is important and will contribute a great deal to the development of the economy in rural areas. As a developing country, China is not likely to invest large amounts of money in education. It needs help from the whole society. Whats more, with more and more children having access to education, the intelligence level in the country as a whole will increase and thus will benefit the countrys modernization.
As the project has a farreaching influence on our society, much attention should be paid to it. More work should be done by the government to make greater contribution to the project, and the public should also be encouraged to finance the project.