句子插入题(InsertText Questions)是托福阅读部分的必考题型，每篇文章后都会有一个该题型;且出题位置固定，为倒数第二道题。该题型要求考生将一句话插入到原文四个黑色空格的其中一个当中，使得段落看起来更通顺。那么，在以下内容中我们就为大家带来一些托福句子插入题的实例详解，希望能为大家的备考带来帮助。
托福阅读句子插入题：Speciation in Geographically Isolated Populations
【Paragraph 4】Allopatric speciation can also be brought by the imperceptibly slow but colossal movements of the tectonic plates that make up Earth’s surface. ■About 5 million years ago such geologic movements created the land bridge between North America and South America that we call the Isthmus of Panama. The formation of the isthmus had important consequences for global patterns of ocean water flow. ■While previously the gap between the continents had allowed a free flow of water, now the isthmus presented a barrier that divided the Atlantic Ocean from the Pacific Ocean. ■This division set the stage for allopatric speciation among populations of fishes and other marine species. ■(Speciation in Geographically Isolated Populations)
Look at the four squares [■] that indicate where the following sentence could be added to the passage.
The formation of the isthmus had important consequences for global patterns of ocean water flow.
Where would the sentence best fit?
托福阅读句子插入题答案：2
