【托福阅读题型：The Origins of Agriculture句子插入题】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!

　　查看全部：托福阅读题型分类练习之句子插入题

　　托福阅读句子插入题：The Origins of Agriculture

　　【Paragraph 7】How did it come about that farming developed independently in a number of world centers (the　Southeast Asian mainland, Southwest Asia, Central America, lowland and highland South America, and equatorial Afric○　at more or less the same time? Agriculture developed slowly among populations that had an extensive knowledge of　plants and animals. ■Changing from hunting and gathering to agriculture had no immediate advantages. ■To start with, it　forced the population to abandon the nomad's life and became sedentary, to develop methods of storage and, often,　systems of irrigation. ■While hunter-gatherers always had the option of moving elsewhere when the resources were exhausted, this became more difficult with farming. ■Furthermore, as the archaeological record shows, the state of　　health of agriculturalists was worse than that of their contemporary hunter-gatherers.(The Origins of Agriculture)

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

　　Because humans had built up this knowledge as hunter-gatherers, it is logical to conclude that over time they would　have become extremely efficient.

　　Where would the sentence best fit? Click on a square to add the sentence to the passage.

　　答案见下一页：