托福阅读中句子插入题是重要题型之一。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!

　　托福阅读句子插入题：Meteorite Impact

　　【Paragraph 6】Impacts by meteorites represent one mechanism that could cause global catastrophes and　seriously influence the evolution of life all over the planet. ■According to some estimates, the majority of all extinctions of　species may be due to such impacts. ■Such a perspective fundamentally changes our view of biological evolution. ■The　standard criterion for the survival of a species is its success in competing with other species and adapting to slowly changing environments. ■Yet an equally important criterion is the ability of a species to survive random global ecological catastrophes due to impacts. (Meteorite Impact and Dinosaur Extinction)

　　! Look at the four squares [■] that indicate where the following sentence can be added to the passage.

　　This is the criterion emphasized by Darwin's theory of evolution by natural selection.

　　Where would the sentence best fit?

　　托福阅读句子插入题答案：1

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