GMAT考试资料：GWD试题合集（五十三）.

　　以下将为正在备战GMAT考试的同学们整理一些经典的GMAT阅读试题，并分多个合集推出，希望能够为正在备考GMAT考试的考生提供或多或少的帮助。

　　29. GWD-28-Q13-Q15 胡萝卜素颜色亮浅对动物交配几率的影响

　　Carotenoids, a family of natural pigments, form an important art of the colorful signals used by many animals. Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues. Studies of several animal species have shown that when choosing mates, females prer males with brighter carotenoid-based coloration. Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health. The conventional (Line 15) view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts. Although this may be true, there is growing evidence that carotenoids are meaningful also because they are required: they are used by the immune system and for detoxification processes that are important for maintaining health. It may be that males can use scarce carotenoids either for immune dense and detoxification or for attracting females. Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

　　28-13: Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?

　　A: They were not acquired directly from plants and algae

　　B: They cannot be replenished through foraging.

　　C: They cannot be used simultaneously to brighten coloration.

　　D: They do not affect the animal’s susceptibility to parasites.

　　E: They increase the chances that the animal will be selected as a mate.

　　28-14: The passage suggests that relatively bright carotenoid-based coloration is a signal of which of the following characteristics in males of certain animal species?

　　A: Readiness for mating behavior

　　B: Ability to fight

　　C: Particular feeding prerences

　　D: Recovery from parasite infestation

　　E: Fitness as a mate

　　28-15: According to the “conventional view” rerred to in lines 14-15 of the passage, brighter carotenoid-based coloration in certain species suggests that an individual

　　A: lives in a habitat rich in carotenoid-bearing plants and insects

　　B: has ficient detoxification processes

　　C: has a superior immune system

　　D: possesses superior foraging capacity

　　E: is currently capable of reproducing

　　以上就是本期GMAT试题的所有内容，考生可以此为据并进行针对性的练习，逐步掌握GMAT阅读的解题规律及技巧，以达到迅速提高GMAT考试成绩的目的。 相关链接：

1.GMAT考试资料：GWD试题合集（五十二）

2.GMAT考试资料：GWD试题合集（五十一）

3.GMAT考试资料：GWD试题合集（五十）

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