在GRE閱讀邏輯單題里面經常出現動物迷惑行為這樣的主題，題目一般要求解釋原因。這種題一般要抓住原文呈現的迷惑之處，找到一個答案要能夠說明好事為什么變壞事，或者壞事為什么能變好事的。今天我們杭州GRE培訓班老師要給大家簡單說說這類題目的答題思路。

例1:
Bats hunt for their prey, including moths, by emitting ultrasonic squeaks and analyzing the echoes. Arctiid moths are unusual in that they emit distinctive ultrasonic noises of their own in response to the hunting squeaks of bats, thereby giving away their location to the bats. These facts support the hypothesis that the moths protect themselves somehow by revealing their whereabouts to the bats.

Which of the following, if true, provides the strongest additional support for the hypothesis given?
A. Arctiid moths produce their ultrasonic noises with a special membrane that is permanently silenced if it is physically damaged.
B. Arctiid moths react to artificial bat squeaks in much the same way that they react to squeaks actually emitted by bats.
C. Arctiid moths are more colorful and more strikingly patterned than are many other kinds of moth.
D. Arctiid moths, like all other moths, are promptly killed if they get caught by hunting bats.
E. Arctiid moths taste very unpleasant to bats but are the same general shape and size as moths that bats like to eat.

迷惑：一種蛾子通過把自己的位置信息暴露給敵人的方式來保護自己。要加強就是說暴露了位置信息以后確實有好處，前四個答案都沒什么用，E說蝙蝠不喜歡吃這種蛾子，但是這種蛾子又跟蝙蝠喜歡吃的長得像，就是很容易被誤吃，所以它刻意暴露自己的位置信息，這樣蝙蝠就知道是不好吃的蛾子在那邊就不去了，蛾子保護了自己。

例2:
Crows, herring gulls, and sparrows all live on the island of Firsten. Crows feed on sparrow eggs and therefore pose a threat to the sparrow population. Although gull are not nearly as good at finding sparrow nest as crows are, sparrows typically also lose some eggs to gull predation. Nevertheless, sparrows that nest near gull nests tend to lose fewer eggs to predator than sparrows  nesting far away from gull nests, since_____.

1. Which of the following most logically completes tire argument?
the presence of gulls frightens away crows
crows pose no threat to adult sparrows
Gulls find sparrow nests by watching female sparrow enter the nest
there are far more crows on Firsten than there are sparrows.
Sparrows on Firsten typically hide their nests very carefully.

  烏鴉、海鷗和麻雀都生活在Firsten島上。烏鴉以麻雀蛋為食，因此對麻雀的數量構成了威脅。雖然海鷗不像烏鴉那樣善于發現麻雀的巢穴，但麻雀通常也會因為海鷗的捕食而丟失一些蛋。盡管如此，在鷗巢附近筑巢的麻雀往往比在遠離鷗巢的地方筑巢的麻雀因捕食而損失的蛋少，因為_____。

  迷惑之處是為什么挨著壞人的反而過得更好。那就是壞人可能也有好作用。所以選A，海鷗會嚇跑烏鴉，就是能對麻雀起到保護作用。而且烏鴉是大壞人，海鷗是小壞人，挨著海鷗相當于交點保護費。

  以上就是我們杭州GRE培訓班陳老師給大家介紹的GRE閱讀里的動物迷惑行為的一些介紹，希望對備考GRE的同學們有所幫助！另外想要參加GRE模考的讓同學們，可以添加在線咨詢我們線上客服老師咨詢，更多內容，請關注我們網站的其它內容。