说到托福阅读备考，TPO是必不可少的备考神器，通过TPO练习来更好的适应阅读考试的节奏。本文小编带来的托福阅读笔记是TPO28 Early Saharan Pastoralists的内容，希望能够与正在备考的大家一起进步。
TPO28 Early Saharan Pastoralists
文章题材：社会科学——早期撒哈拉牧民
常见词汇：
cast [kɑ:st] v. 投，掷，抛，铸造，丢弃，指定演员，加起来
pastoral ['pɑ:stərəl] adj. 田园的，宁静的，牧人的，牧师的
horn [hɔ:n] n. 动物角，喇叭，触角，角状物，力量源泉
sparse [spɑ:s] adj. 稀少的，稀疏的
control [kən'trəul] n. 克制，控制，管制，操作装置vt. 控制
bow [bau] n. 弓n. 鞠躬，蝴蝶结，船头
discipline ['disiplin] n. 训练，纪律，惩罚，学科
summary ['sʌməri] n. 摘要adj. 概要的，简略的
offspring ['ɔ:fspriŋ] n. 子孙，后代，产物
grazing ['ɡreiziŋ] n. 牧草;放牧 v. 擦过;抓伤(graze的现在分词)
易错题解析：
Paragraph 6: About 3,500 B.C., climatic conditions again deteriorated. The Sahara slowly became drier and lakes vanished. On the other hand, rainfall increased in the interior of western Africa, and the northern limit of the tsetse fly, an insect fatal to cattle, moved south. So the herders shifted south, following the major river systems into savanna regions. By this time, the Saharan people were probably using domestic crops, experimenting with such summer rainfall crops as sorghum and millet as they move out of areas where they could grow wheat, barley, and other Mediterranean crops.
12.According to paragraph 6, what allowed the herders to shift south into the savanna regions after about 3,500 B.C.?
O They could easily grow Mediterranean crops in those regions.
O They could more easily domesticated sorghum and millet in those regions.
O The tsetse fly was no longer a problem in those regions.
O The river systems in those regions provided reliable sources of water in the summer.
题型：事实信息题。答案是(C)
解析：根据move south和savanna region定位到原文第三句，这句话开头出现So，那证明往前一句就是原因。前一句说西部降水变多了，并且northern limit of the tsetse fly moved south，所以牛群也move south。对应了C选项。D是个迷惑选项，但是按原文的意思，river只是牛迁徙的路径“following”，并不是原因，所以不选。
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 African farmers 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.
13.Look at the four squares [■] that indicate where the following sentence could be added to the passage.
This knowledge enabled the hunters to adopt a different approach to hunting.
Where would the sentence best fit?
题型：句子插入题。答案是(D)
解析：需要插入的句子说“这个知识使得猎人改变了打猎的方法”。那么前面应该说猎人得到了什么知识，后面应该说这个方法怎么改变了。A选项符合这个逻辑和内容。
以上就是小编带来的托福阅读笔记之TPO28 Early Saharan Pastoralists,希望能够和备考的大家一起学习。更多托福考试资讯请关注前程百利。
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