【GRE写作】Argument 精选真题范文(十五)

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「Question No. 51」

Humans arrived in the Kaliko Islands about 7,000 years ago, and within

3,000 years most of the large mammal species that had lived in the forests of

the Kaliko Islands had become extinct. Yet humans cannot have been a factor in

the species' extinctions, because there is no evidence that the humans had any

significant contact with the mammals. Further, archaeologists have discovered

numerous sites where the bones of fish had been discarded, but they found no

such areas containing the bones of large mammals, so the humans cannot have

hunted the mammals. Therefore, some climate change or other environmental factor

must have caused the species' extinctions.

Write a response in which you examine the stated and/or unstated

assumptions of the argument. Be sure to explain how the argument depends on

these assumptions and what the implications are for the argument if the

assumptions prove unwarranted.

Introduction

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Body

(以两个逻辑疑点为例，学习段落的行文结构/分析步骤和措辞技巧。)

逻辑点思路1(常见逻辑疑点：它因问题)：

First of all, since humans may have done activities that deprived the

mammals of their food or reduce the food supply or that destroyed the mammals’

habitats, ← 句型技法：用原因状语从句引出对于“它因”的陈述。humans’ significant contact with the mammals

may not be the cause of the mammals’ extinction as the author suggests. For

example, humans may have cut down trees, which may have been the mammals’ source

of food, ← 用定语从句建立人类活动对于哺乳动物食物源的影响。and meanwhile built housing on the

grasslands, which may have been the mammals’ habitats ←

用定语从句建立人类活动对于哺乳动物栖息地的影响。. As a result, the mammals had become extinct because of

the loss of food supply and habitats.

关注点：措辞技巧

逻辑点思路2(常见逻辑疑点：偷换概念：打猎等同于产生丢弃的骨头 / 它因问题：没有丢弃的骨头的原因不是没有狩猎。)：

The author also assumes that hunting would have surely produced discarded

bones and that, otherwise, no hunting would have taken place. ←

写作步骤：上来就直接说明作者的assumption是什么。However, it is likely that the reason of that no

large mammals’ bones had been found is mammals’ bones had been made to be tools

and ornaments. ← 写作步骤：然后分析作者assumption的错误。如果理解为它因问题，那么就在此举出典型的/在常识上最有可能的其它原因。For

example, the large ones may have been made weapons and the small ones may have

been made jewelries.← 写作步骤：就着上一步的分析进一步展开，比如举例进一步诠释。Therefore, although there are

no discarded mammals’ bones, humans may still have hunted the mammals. ←

写作步骤：得出关于这一个逻辑疑点的小总结。

关注点：行文结构/分析步骤

逻辑点思路3、4、5

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Conclusion

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