例125　However, when two monkeys were placed in separate but adjoining chambers, so that each could observe what the other was getting in return for its rock, their behavior became markedly different.

【结构分析】这句话刚开始用了一个表示时间状语从句when two monkeys were placed in separate but adjoining chambers，该时间状语从句里面套有表示目的的状语从句，也就是so that each could observe...，该目的状语从句里面套有宾语从句，也就是what the other was getting in return for its rock，后面是这个句子主干their behavior became markedly different。

【亮点回放】此句话的亮点在于多种句子的层层相套，时间状语从句套上目的状语从句，目的状语从句套上宾语从句，各种从句交织在一起，很经典。

【核心词汇】

placed in separate but adjoining chambers　被关在分开但相邻的两间屋子

what the other was getting in return for its rock　对方用石块交换到什么物品时

markedly different　明显不一样

【参考译文】然而当两只猴子被关在分开但相邻的两间屋子、让它们能互相看到对方用石块交换到什么物品时，他们的行为就明显不一样了。