一、篇章连贯：可以通过文章内容的内在联系来表现篇章的连贯性。
 
1、具体到一般： 表现形式为先举例具体的事例进行分析、说明，进而得出论证或结论，在段末往往以主题句的形式表现出来。
2、一般到具体：表现为在文章段首以主题句的形式出现，然后通过具体的叙述、说明、举例使主题句变得具体、明白、易懂。   

  二、 常用句型

  １、 开头
        
         It's well known to us that...
        Recently,... has been brought to popular attention/has become the focus of public concern.
         One of the universal issues we are faced with / that cause increasing concern is that...
         People's view/opinions /ideas on ... vary from person to person.Some people think that ... they hold this opinion because...  However,others hold that...

2、主要论述方法
        
         A is to B what C is to D
         According to ..., but there is no evidence whatsoever to show...
         The example cited,while suggestive of these trends,is insufficient to warrant their truth because there is no reason to belivev that the data drawn form... is representative of...
         As it stands, this argument suffers from three critical flaws.

 3、结尾
         In my opinion,it is more advisable to do ... than to do
         Taking into account all these factors,we may reasonably come to the conclusion that...
         It is time to take the advice of ... and to put special emphasis on the improvement of...
         We should solve the problems that we are confronted/faced with
         It is high time that we put an end to... Otherwise,...