托福阅读否定事实信息题是阅读考试十大题型之一，通常每篇阅读中都会出现;tpo是托福阅读备考最权威的材料，所以托福小编综合二者，为大家集中整理了tpo阅读中考察的否定事实信息题及其对应的解析，供大家参考使用。本文带来的是TPO15-2的否定事实信息题，一起来看看吧。
TPO15-2 Mass Extinctions
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What could cause such high rates of extinction? There are several hypotheses, including warming or cooling of Earth, changes in seasonal fluctuations or ocean currents, and changing positions of the continents. Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans. Some of the proposed mechanisms required a very brief period during which all extinctions suddenly took place; other mechanisms would be more likely to have taken place more gradually, over an extended period, or at different times on different continents. Some hypotheses fad to account for simultaneous extinctions on land and in the seas. Each mass extinction may have had a different cause. Evidence points to hunting by humans and habitat destruction as the likely causes for the current mass extinction.
4. According to paragraph 3, each of the following has been proposed as a possible cause of mass extinctions EXCEPT
¡ habitat destruction
¡ continental movement
¡ fierce interspecies competition
¡ changes in Earth's tem perature
解析：EXCEPT题，本段第一句就问了原因第二句就开始回答，所以这道题正选比较好。第二句的warming or cooling对应D答案，正确，不选;changing position对应B答案，正确，不选;最后一句的habitat destruction对应A答案，正确，不选;只有C没有对应，所以C错，选
[3]是什么原因引起如此高的物种灭绝率呢?有几种假说，包括：地球变暖或变冷;季节型波动的改变或洋流变化;大陆位置移动。生物假说包括因昆虫与开花植物之间的合作式进化或海洋底层肉食动物进化引起的生态变化。这些生物机制，有些在极短的时间内就会灭绝，而有些则很有可能经过长时期在不同时代或不同大陆缓慢地进行。有些假说未能解释在陆地和海洋同时发生的物种灭绝。可能每次大规模物种灭绝都有不同的原因。但有证据指出，人类狩猎以及人类破坏栖息地很可能是当前大规模物种灭绝的原因。
以上就是托福阅读TPO15-2中的否定事实信息题及其解析，大家可以在备考的时候参考复习，希望能够帮助大家的考前准备。最后前程百利祝大家都能取得理想的托福考试成绩。
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