Yet the efficient learning of specific facts may lead to the assumption that when the adult has finished teaching, there is nothing further to learn—because if there were, the adult would have said so.
-----should be interpreted as:
Yet (we may have a hypothesis that) the efficient learning of specific facts may lead to (that children may have ) the assumption that when the adult has finished teaching, there is nothing further to learn—because if there were, the adult would have said so.
----hence:
the "that" in "that is true" refers to the hypothesis, not the assumption.
大家看看我翻的怎么样:Yet the efficient learning of specific facts may lead to the assumption that when the adult has finished teaching, there is nothing further to learn—because if there were, the adult would have said so 但是这种高效的学习方法会可能导致一种情况——当大人们完成了教学工作,孩子会认为没有可以继续学习的内容了,因为,如果有的话,大人会教给孩子的
6、 the number of different actions the child performed:是本文的一个难点,action这里是指组成玩具的不同部件,她们研究的是孩子们究竟玩了几个部件,而不是孩子们做了几个动作或行为。图片上的玩具是由几个管子的部件组合而成,也可以说明这一点。下一段的tried out four different actions也是如此。