今日长难句
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 behaviour became markedly different.（Text1，2005）
separate / ˈseprət / adj.单独的；独立的；分开的
adjoining / ə'dʒɒɪnɪŋ / adj.邻接的；毗连的
chamber / ˈtʃeimbə(r) / n.腔；室
marked / mɑ:kt / adj.显著的
结构分析（图片点击可放大）
你需要知道
本句嵌套多个从句，主句为their behaviour became markedly different. when引导的时间状语从句中嵌套了一个so that目的状语从句，so that从句中又嵌套了what引导的宾语从句。
翻译
然而，当两只猴子被安置在隔开但相邻的房间里，以便它们能够看到彼此用石块换取的东西时，它们的行为就会变得明显不同了。
预告7.23长难句（周末愉快么么哒~）
But science does provide us with the best available guide to the future, and it is critical that our nation and the world base important policies on the best judgments that science can provide concerning the future consequences of present actions.（Text2，2005）
