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托福阅读修辞目的题：Early Saharan Pastoralists

2015-08-13 16:22:14来源：网络

　　【托福阅读题型：Early Saharan Pastoralists修辞目的题】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修辞目的题

　　托福阅读修辞目的题：Early Saharan Pastoralists

　　【Paragraph 3】Smith believes that the hunters were well aware of the more disciplined ways in which their prey　behaved. Instead of following the cattle on their annual migrations, the hunters began to prevent the herd from moving　from one spot to another. At first, they controlled the movement of the herd while ensuring continuance of their meat diet.　But soon they also gained genetic control of the animals, which led to rapid physical changes in the herd. South Africanfarmers who maintain herds of wild eland (large African antelopes with short, twisted horns) report that the offspring soon　diminish in size, unless wild bulls are introduced constantly from outside. The same effects of inbreeding may have　occurred in controlled cattle populations, with some additional, and perhaps unrecognized, advantages. The newly　domesticated animals behaved better, were easier to control, and may have enjoyed a higher birth rate, which in turn　yielded greater milk supplies. We know from rock paintings deep in the Sahara that the herders were soon selecting　breeding animals to produce offspring with different horn shapes and hide colors.(Early Saharan Pastoralists)

　　Why does the author mention the “rock paintings deep in the Sahara”?

　　○ To help explain why the hunters wanted to control the herds.

　　○ To provide support for the idea that the herders soon gained genetic control of the cattle

　　○ To show that the herders had artistic as well as practical abilities

　　○ To argue that the herders soon began to value their cattle for more than food.

　　答案见下一页：

本文关键字: 托福阅读题型 托福阅读训练 修辞目的题

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