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托福阅读笔记之TPO29 Competition

信息来源:运维  发布时间:2015-08-24

  说到托福阅读  备考,TPO是必不可少的备考神器,通过TPO练习来更好的适应阅读考试的节奏。本文小编带来的托福阅读笔记  是TPO29 Competition的内容,希望能够与正在备考的大家一起进步。

  TPO29 Competition

  文章题材:社会学科——竞争

  常见词汇:

  observation [.ɔbzə'veiʃən] n. 观察,观察力,评论

  graph [grɑ:f] n. 图表,示意图vt. (以图表)表示

  eliminate [i'limineit] v. 除去,剔除; 忽略

  apparent [ə'pærənt] adj. 明显的,表面上的

  numerous ['nju:mərəs] adj. 为数众多的,许多

  composition [.kɔmpə'ziʃən] n. 作文,著作,组织,合成物,成份

  slightly ['slaitli] adv. 些微地,苗条地

  ecological [.ekə'lɔdʒikəl] adj. 生态的,生态学的

  potentially [pə'tenʃəli] adv. 潜在地

  lessen ['lesn] v. 减少,变小,减轻

  易错题解析:

  Paragraph 2: No serious competition exists when the major needed resource is in superabundant supply, as in most cases of the coexistence of herbivores (plant eaters). Furthermore, most species do not depend entirely on a single resource, if the major resource for a species becomes scarce, the species can usually shift to alternative resources. If more than one species is competing for a scarce resource, the competing species usually switch to different alternative resources. Competition is usually most severe among close relatives with similar demands on the environment. But it may also occur among totally unrelated forms that compete for the same resource, such as seed-eating rodents and ants. The effects of such competition are graphically demonstrated when all the animals or all the plants in an ecosystem come into competition, as happened 2 million years ago at the end of Pliocene, when North and South America became joined by the Isthmus of Panama. North and South American species migrating across the Isthmus now came into competition with each other. The result was the extermination of a large fraction of the South American mammals, which were apparently unable to withstand the competition from invading North American species----although added predation was also an important factor.

  5.According to paragraph 2, competition is not usually a significant factor among two coexisting species when

  O one of the species has only recently moved into the territory of the other

  O the species are closely related to each other

  O the population of one species is much larger than that of the other

  O both of the species are herbivores

  题型:事实信息题。答案是(D)

  解析:根据coexisting species定位到原文处,前文就是原因,因为资源供给充足。而coexistence of herbivores是给出的例证,coexistence herbivores间没有激烈竞争是因为它们都吃草,而草资源是非常充足的。理想答案是当资源充足时,竞争不会成为重要的影响因素。但原文没有,唯一合适的选择就是D,也就是原文提到的例证。

  Paragraph 3: Numerous seeming exceptions to this law have since been found, but they can usually be explained as cases in which the two species, even though competing for a major joint resource, did not really occupy exactly the same niche.

  9. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information.

  O Apparent exceptions to this law usually involves cases in which two species compete for the same major resource but occupy slightly different niches.

  O Although it may appear that two species always have different niches, many exceptions show that species compete with each other.

  O Cases in which two species not only compete for a shared resource but also occupy similar niches are considered exceptions to this law.

  O Cases in which the two species do not occupy that same niche yet still compete for the same resource are believed to be exceptions to this law.

  题型:句子简化题。答案是(A)

  解析:原文中句子的主干是 seeming exceptions have been found,然后存在了转折逻辑之后说这种例外是可以被解释的。因此只有A符合。B,C,D都在一定程度上改变了原句的意思。

  以上就是小编带来的托福阅读笔记之TPO29 Competition,希望能够和备考的大家一起学习。更多托福考试资讯请关注前程百利。

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