想要作文得高分?8大GRE写作实用论证法分享
下面GRE作文栏目为大家介绍一些新GRE写作的论证方法,大家可以通过这些论证方法,来总结遇到不同类型的新GRE作文题目的时候的写作思路,表现出高超的逻辑推理技巧。
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.
(说明:由论据“the price of the product is sliding ”推出论点“Demand for this product will go up”,这个过程是否有效取决于推理依据“whenever prices of a product go down , demand for it rises”是否成立。下面每一种论证方法都是如此)
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 group's 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.
推理依据:Three eaxmples are enough.
五、列举特征式论证法
指出某事物发生或者生存的征候或者迹象。例如:
论点:The child has chickenpox.
论据:The child has red spots.
推理依据:These spots are signs of chickenpox.
六、类比论证法
用我们已知的、熟悉的事物同未知的。不熟悉的事物加以比较,并用前者的情况解释者 的情况。分为三种:纵向类比(过去的事物同现在的、同一类事物的类比)、横向类比(同一 时期、同一事物之间的类比)、比喻式类比(不同类别事物之间的类比)。例如:
1.纵向类比(Historical analogy)
论点:Many people will die of SARS.
论据:Many people died of the Black Death.
推理依据:SARS and Black Death are similar.
2.横向类比(Literal analogy)
论点:China should have its fighter carriers.
论据:A neighboring country has a powerful carrier fleet.
推理依据:The two countries are similar enough to draw such a comparison.
3.比喻式类比(Metaphorical analogy)
论点:Reading a difficult book should take time.
论据:Digesting a large metal takes time.
推理依据:Reading and eating are sufficiently alike to be compared.
七、引用权威论证法
引用公认的权威,或者论证自己就是权威从而对自己的观点加以论证。例如:
论点:China's economy will grow 8 poercent this year.
论据:Professors and scientists say so.
推理依据:These experts are reliable.
八、诉诸尝试法
利用人们的常识【包括:普遍的价值观念、人的普遍动机、生活常识】进行论证。例如:
1.诉诸普遍性的价值观念。
论点:The university curriculum should be multicultural.
论据:A multicultural curriculum will contribute to equality and acceptance.
推理依据:You value equality and acceptance.
只是一个详细的结构上的分析说明,在具体运用时,我们经常讲推理依据和论据放在了一起,但只要合理即可。论据可以自己编造,也可以是大众的例子,关键在于自己怎么样建立论点和论据之间的桥梁。上面的这些技巧,可能我们只用到某种或某几种,但我们必须得会至少一种。
掌握上面所说的论证方法,无论什么样的新GRE作文都可以轻松那些。新GRE作文虽然属于写作创作,但是对于论证问题来说,也是需要一定的套路的,掌握这些方法,就可以掌握新GRE写作高分的秘籍。
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