2021年4月23日GRE逻辑预测分享 熟悉逻辑思路应对复杂难题

2021年4月23日场次GRE逻辑阅读预测发布，本篇预测包含对4月23日GRE阅读中逻辑阅读题目的内容盘点以及逻辑链分析，帮助大家理顺思路做好逻辑烧脑难题，一起来看！

2021年4月23日GRE其他题型预测：作文/短阅读/长阅读/填空/等价/数学 请走这里

逻辑阅读

For more than fifty years, many evolutionary biologists posited that early fish such as Eusthenopteron developed limbs as a result of the need to drag themselves across short distances when their watery habitats dried up during periods of drought. However, new fossil evidence suggests that this hypothesis is incorrect. Fossilized remains of Acanthostega, a primitive fish, reveal that even though the animal had rudimentary limbs, it could not walk on land. Acanthostega lacked ankles, which means that its limbs couldn’t support its weight; furthermore, its ribs were too short to prevent the organism’s chest cavity from collapsing once the animal left water.

1. Which of the following would most strengthen the author’s argument?

A. The fossilized remains of the Acanthostega are the earliest known evidence of early fish.

B. The modem descendants of Acanthostega are not able to drag themselves across short distances on land.

C. Biologists have found that some aquatic species can successfully drag themselves across land even though these species do not possess ankles.

D. Any animal with a collapsed chest cavity is not able to survive long enough to travel even a short distance across land.

E. Some evolutionary biologists believe that the new fossils are not from Acanthostega.

答案：D

原文大意：许多生物学家假设很久以前的鱼长出四肢是为了在陆地上移动很小的距离，但是作者认为最新化石表明即使有四肢也无法在陆地上移动，一是因为没有脚踝不能支持身体重量，二是因为肋骨太短不能防止上岸后胸腔塌陷。

解析：题干要求选出最可以支持作者结论的选项。我们可以发现作者的观点和第二个原因之间有逻辑漏洞，那就是胸腔塌陷是否一定会无法在路上移动，选项D填补了这个逻辑漏洞。

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