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OG20官方指南,建议同学们刷3遍。第一遍做题了解题型和考点,第二遍精刷,第三遍集中解决疑难问题。建议考生第一遍刷题采用官方正版纸质书籍,若遇到疑难问题,欢迎在此专区查阅解析,提供解析,参与题目讨论,与所有考生一起解决疑难问题。
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该题平均耗时:1m44s,平均正确率:51.8%

建议使用官方纸质指南,查看对照完整题目

Carotenoids, a family of natural pigments, form an important part 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 prefer 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 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 defense 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.

【OG20-P423-519题】

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

  • 分析A选项
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  • 分析B选项
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  • 分析C选项
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  • 分析D选项
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  • 分析E选项
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该题目由网友hGiXEPQ提供。更多GMAT题目请
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当前版本由 L_ring 更新于2018-09-12 15:08:45 感谢由 L_ring 对此题目的解答所做出的贡献。

这道题要定位到文章最后一部分,It may be that males can use scarce carotenoids either for immune defense 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. 文章提到Carotenoids要么只能为健康服务,要么只能用作吸引配偶,那么根据题干,如果Carotenoids用作detoxification process(为健康服务),在吸引配偶方面就显得不足,所以C选项,它们不能使自己的颜色更鲜艳,也就不能吸引配偶了,正确。

A选项讲的是Carotenoids的获取途径,与题干所问无关。

B选项,首先与题干无关,其次与文章逻辑不一致,它是可以通过foraging来补充的。

D选项与文章内容不一致,可以增加免疫能力。E选项与文章逻辑相反,应该是减少作为配偶的机会。


题目讨论 10条评论)

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    旮旮

    A:错误,与原文信息相反,所有的C物质都可以通过plant或algae获得;
    B:错误,可以通过foraging获得;
    C:正确,通过either···or 判断= not simultaneously with;(说明C物质是被消耗的,只能参与一个过程)
    D:错误,所有的C物质都可以affect the animal’s susceptibility to parasites.
    E:错误,是那些没有被解毒过程消耗掉的C物质才可以用来increase the chances that the animal will be selected as a mate.
    1 0 回复 2021-10-09 11:45:24
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    1206777d

    这个题目我不能理解成下列关于C(那些用于defense disease)的c的作用是什么吗?
    0 0 回复 2021-07-31 15:07:07
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    Duan

    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.  C这个选项很不严谨啊,这句话明明说了,基因抵抗好的,会用比较少的C去抵抗疾病,然后用来展示。说明是可以同时用作两种功能的啊。所以提问中问用来解毒的,为什么不可以是基因抵抗好的,只是用少量解毒,大量展示的呢  希望有高手解答下
    0 0 回复 2021-07-15 16:32:48
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    951296dqq

    It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.
    0 0 回复 2020-07-21 22:23:39
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    hikanai

    It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.这里强调了CARO是很少的,所以之能用作解毒或者吸引异性,不能同时。太坑了
    1 0 回复 2020-04-16 21:43:58
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    郁小姐要上700吖

    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.whereareas作为对比的方式出现,那些身体不好的males会怎样,那些身体好的会怎样,来帮助我们区别选项
    0 0 回复 2020-04-08 14:59:31
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    emily666

    这道题好坑啊。。。
    0 0 回复 2020-03-16 18:03:11
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    agnes0815

    没有看到detoxification process(解毒过程)误选了E 虽然Carotenoids 可以帮助动物吸引异性,但这里讨论的是在解毒过程中使用的Carotenoids
    0 0 回复 2019-09-08 17:52:19
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    杜一凡

    “Information in the passage”——细节题,直接在关键词附近找就行。
    0 0 回复 2019-07-30 09:28:00
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    独一无二的张喜喜

    这个题目应该怎么读,以为问题主语是insects,然后5个都不对。。。。。心累
    0 0 回复 2019-01-19 12:14:55
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