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OG18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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Resin is a plant secretion that hardens when exposed to air; fossilized resin is called amber. Although Pliny in the first century recognized that amber was produced from "marrow discharged by trees," amber has been widely misunderstood to be a semiprecious gem and has even been described in mineralogy textbooks. Confusion also persists surrounding the term "resin,"which was defined before rigorous chemical analyses were available. Resin is often confused with gum, a substance produced in plants in response to bacterial infections, and with sap, an aqueous solution transported through certain plant tissues. Resin differs from both gum and sap in that scientists have not determined a physiological function for resin.

In the 1950s, entomologists posited that resin may function to repel or attract insects. Fraenkel conjectured that plants initially produced resin in nonspecific chemical responses to insect attack and that, over time, plants evolved that produced resin with specific repellent effects. But some insect species, he noted, might overcome the repellent effects, actually becoming attracted to the resin. This might induce the insects to feed on those plants or aid them in securing a breeding site. Later researchers suggested that resin mediates the complex interdependence, or "coevolution," of plants and insects over time. Such ideas led to the development of the specialized discipline of chemical ecology, which is concerned with the role of plant chemicals in interactions with other organisms and with the evolution and ecology of plant antiherbivore chemistry (plants' chemical defenses against attack by herbivores such as insects).

【OG20-P433-542题】

The author of the passage refers to Pliny most probably in order to

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当前版本由 百香果蜂蜜茶 更新于2017-08-10 15:37:21 感谢由 百香果蜂蜜茶 对此题目的解答所做出的贡献。

这一题同样定位到原文 “Although Pliny in the first century recognized that
amber was produced from "marrow discharged by trees," amber has been
widely misunderstood to be a semiprecious gem and has even been
described in mineralogy textbooks” 我们在阅读的时候一定要注意情绪的转折,
这里在Pliny的前面用了Although 表达出一种转折的情绪! 说明尽管Pliny这样认为,可是其他人会那样认为..因此
Pliny是个例外.

A错 因为 Pliny并不是一个example

B错 因为resin和amber并没有作比较

C错在 Pliny 并不认为 resin是一种semiprecious gem

E错在 所提及内容文章中并未出现


题目讨论 3条评论)

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  • 用户头像

    LOL666

    Pliny并不是一个example。。。
    0 0 回复 2017-12-23 21:54:38
  • 用户头像

    千千

    该词所在原句最准确的意思应该是让步,而不是转折
    对于让步的语气  让步的内容都是指出与要讨论的内容的一个例外
    尽管我不喜欢他,我不得不承认他是个好人 (主要是阐述我认为他是个好人的态度,但是指出我对他态度的一个例外即我不喜欢他)
    
    尽管P认为resin 是“...”,resin还是被普遍认为是“...” 句子主要表达人们对resin普遍的理解,但指出一个例外即P认为resin 是“。。。”
    1 0 回复 2017-11-13 17:20:23
  • 用户头像

    百香果蜂蜜茶

    这一题同样定位到原文 “Although Pliny in the first century recognized that amber was produced from "marrow discharged by trees," amber has been widely misunderstood to be a semiprecious gem and has even been described in mineralogy textbooks” 我们在阅读的时候一定要注意情绪的转折, 这里在Pliny的前面用了Although 表达出一种转折的情绪! 说明尽管Pliny这样认为,可是其他人会那样认为..因此 Pliny是个例外.
    
    A错 因为 Pliny并不是一个example
    B错 因为resin和amber并没有作比较
    C错在 Pliny 并不认为 resin是一种semiprecious gem
    E错在 所提及内容文章中并未出现
    0 0 回复 2017-08-09 15:23:48
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