GRE写作的论证方法

　　一、演绎推理论证法

将一个具体的事例运用到一个一般性原则从而得出结论。

论点:Demand for this product wii go up。

论据:The price of the product is sliding.

推理依据:Whenever prices of a product go down , demand for it rises.

　　二、定义法

界定一个概念的'关键内涵;或者认定某个事物符合某个定义，从而得出结论。例如:

论点:Radical feminists are not good citizens.

论据:Radical feminists lack family values.

推理依据:Family values characterize the good citizes.

　　三、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 groups depression.

　　四、归纳推理论证法

从若干个具体事例中推出共性的一般结论。如:

论点:Everyone likes the movie.

论据:I know three people who like the movie.