2013gre作文考试备考：论证方法之因果关系论证法

　　因果关系论证法 　　将一个判断放入一个因果关系中，指出它或者是原因，或者是结果。例如：

　　论点：The internet may be causing depression.

　　论据：When a group of people increased their use of the Internet , they felt depressed.

　　推理依据：There are no other reasons for the group's depression.