2010年英语四级议论文作文类型

5.因果分析型议论文
　　特点：描述某种原因或现象以揭示其必然后果，或披露结果以追溯其各种原因。
　　写作常用套语 和谐英语学习网
　　There are several reasons for…
　　There are many factors that account for /contribute to /responsible for …,but the following are the typical ones.
　　There are a number of serious effects on…Perhaps the most potential consequence is …
　　Taking into account all the relevant factors, /Judging from all the evidence offered, we may come to the conclusion that...
　　Therefore, it can be inferred that…
　　Accordingly, I recommend that…