PETS3公共英语三级写作讲义（8） 

　　1. 原因分析段落:

　　开头方法(1) : 因果兼顾

　　What has brought about this debate? Personally, I believe that three primary reasons may account for this. To begin with, as a result of ___, _____. So ___. In addition, ___ in order to ___, Then ___. Finally, coupled with ___ is ___ that contributes to ___

　　开头方法(2) 无果有因

　　There are many reasons for it, the most important of which, I would propose, is _____. Additionally, ___ is a contributing factor accounting for ______. Finally, ____ can be traced to _____.

　　开头方法(3)因果取舍

　　When it comes to the issue of _________, some people are more likely to ascribe its emergence to _______. However, it is not the primary reason at all. Rather, _______.

　　Whenever the debate of _______ is raised, some people are prone to attribute its expansion to _____. Nevertheless, it is nothing more than a tip of the gigantic iceberg. As a matter of fact, __________.