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刘文勇GRE写作Argument题库 Day 91

所属教程:GRE百日百句百题:写作题库全解析

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2022年05月15日

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Day 91 Three years ago, because of flooding at the Western Palean Wildlife Preserve, 100 lions and 100 western gazelles were moved to the East Palean Preserve

Three years ago, because of flooding at the Western Palean Wildlife Preserve, 100 lions and 100 western gazelles were moved to the East Palean Preserve, an area that is home to most of the same species that are found in the western preserve, though in larger numbers, and to the eastern gazelle, a close relative of the western gazelle. The only difference in climate is that the eastern preserve typically has slightly less rainfall. Unfortunately, after three years in the eastern preserve, the imported western gazelle population has been virtually eliminated. Since the slight reduction in rainfall cannot be the cause of the virtual elimination of western gazelle, their disappearance must have been caused by the larger number of predators in the eastern preserve.

Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.

五问:

(1)“Three years ago, because of flooding at the Western Palean Wildlife Preserve, 100 lions and 100 western gazelles were moved to the East Palean Preserve, an area that is home to most of the same species that are found in the western preserve, though in larger numbers, and to the eastern gazelle, a close relative of the western gazelle. The only difference in climate is that the eastern preserve typically has slightly less rainfall. Unfortunately, after three years in the eastern preserve, the imported western gazelle population has been virtually eliminated”是事实,“ their disappearance must have been caused by the larger number of predators in the eastern preserve”是结论,值得反驳吗?

(2)原文中所提及的气候差异真的不是瞪羚减少的原因吗?原文中是否给出了足够的证据来说明这一点?比如瞪羚对于天气变化不敏感等。

(3)东部和西部的两种瞪羚之间是什么关系?是否可能是竞争者的关系?原文给出了足够的信息来说明这一点吗?西部瞪羚的数目减少是否可能是因为难以竞争过本土的东部瞪羚?

(4)原文所提及的因素共有两个,其一是天气状况,其二是捕食者的数量,你能否想出其他可能会影响瞪羚种群的因素?(比如疾病等。)说说其他因素可能会如何影响瞪羚的数量?如果不讨论这些因素,对原文的论述将会加强还是削弱呢?

(5)狮子和瞪羚之间是什么关系?是否就是捕食者与猎物之间的关系?迁徙到东部的动物中有 100 lions and 100 western gazelles,因此讨论的时候,是否也应将狮子列入统一的讨论范围?


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