二、中間段

中間段是文章的正文，其作用是從不同的層面對文章主題進行具體和詳實的解釋和論證。

1、中間段的一般特征

① 篇幅一般比開頭段和結尾段長。

② 每段有相應的主題句。

③包含定義、解釋、描寫，說明主題思想的擴展句可以采用實例、數(shù)據或個人經歷等寫作手段。

④不同種類的段落采用不同的擴展手段。

中間段的常用核心句型：

1．Although the popular belief is that…, a current （new / recent） study （survey / poll / investigation） indicates （shows / demonstrates） that….

2．Common sense tells us that….

3．The increase （change / failure / success） in…mainly （largely / partly） results from （arises from / is because of）….

4．The increase （change / failure / success） in…is due to （owing to / attributable to） the fact that….

5．Many people would claim that….

6．One may attribute （ascribe / owe） the increase （decrease / change ） to…, but…is not by itself an adequate explanation.

7．One of the reasons given for…is that….

8．What is also worth noticing is that….

9．There are many （different / several /a number of / a variety of）causes （reasons） for this dramatic （marked / significant） growth （change / decline / increase） in…. First,…. Second,…. Finally,….

10．There is no evidence to suggest that….

11．Why are （is / do / did）…? For one thing,…. For another,….

12．Another reason why I dispute the above statement is that….

13．It gives rise to （lead to / bring /create） a host of problems （consequences）.

14．There are numerous reasons why…, and I shall here explore only a few of the most important ones.

15．It will exert （have / produce） profound （far-reaching / remarkable / considerable / beneficial / favorable / undesirable / disastrous） effect （influence） on….