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托福阅读句子简化题：The Pace of Evolutionary Change

2015-08-24 16:06:01来源：网络

　　【托福阅读题型：The Pace of Evolutionary Change句子简化题】托福阅读中句子简化题是重要题型之一。根据托福阅读题型不同来进行专项练习，是短期提高托福阅读能力的有效方法。同学们需要多加练习哦!

　　查看全部：托福阅读题型分类练习之句子简化题

　　托福阅读句子简化题：The Pace of Evolutionary Change

　　【Paragraph 2】Sometimes a closed question must be reopened as new evidence or new arguments based on old evidence come to light. In 1972 paleontologist Stephen Jay Gould and Niles Eldredge challenged conventional wisdom　with an opposing viewpoint, the punctuated equilibrium hypothesis, which posits that species give rise to new species in　relatively sudden bursts, without a lengthy transition period. These episodes of rapid evolution are separated by relativelylong static spans during which a species may hardly change at all.(The Pace of Evolutionary Change)

　　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.

　　○ The punctuated equilibrium hypothesis challenged gradualism, which holds that species evolve in relatively　sudden bursts of brief duration.

　　○ The punctuated equilibrium hypothesis developed by Stephen Jay Gould and Niles Eldredge was challenged in　1972.

　　○ In 1972 Stephen Jay Gould and Niles Eldredge challenged gradualism by positing that change from one species　to another cannot occur without a lengthy transition period.

　　○ The punctuate equilibrium hypothesis, in opposition to gradualism, holds that transitions from one species to　　another occur in comparatively sudden burst.

　　答案见下一页：

本文关键字: 托福阅读题型 托福阅读训练 句子简化题

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