【正确答案】 A

【答案解析】[听力原文]
Let's look back in history to an earlier way of life. At one time, children didn't have to learn any more than how to cope with their physical environment. They had to learn to be careful about moving objects, to draw back when they got too close to something dangerous. They didn't need a special school to learn these things other than the school of experience, nor was school necessary for them to learn how to survive, because their parents taught them all they needed to know about how to hunt and to till the soil. But as the society became more complex, people depended more on others who were living far away. So it became important for children to learn to read and write. When money was created, they needed to learn to count and calculate. Children had to know these things in order to survive in this new expanded environment Because such skills could not be learned simply from first-hand experience, schools became necessary so that children could be taught what we now call the three Rs: reading, writing and arithmetic.

本题出题点在时间状语处(At onetime)。短文提到，早期儿童只需学会如何应付他们周围的自然环境，他们要学会小心应对周围的移动物体，当太过接近一些危险的事物时要退后，由此可以推断，在早期儿童需要学会如何适应环境，故本题选A。

【正确答案】 D

【答案解析】本题出题点在因果关系处(because)。短文提到，他们仅需从经验中学习，因为他们的父母教他们关于狩猎和耕种的所有知识，由此可知早期的儿童是从他们的父母亲那里学会如何生存的，故选D。

【正确答案】 B

【答案解析】本题出题点在时间状语从句处(When…)。短文提到，当钱被发明出来后，他们需要学会数数和计算，故本题选B。