If you are listening to that 5th grade English teacher correct your grammar while you are trying to capture a fleeting (稍纵即逝的) thought, the thought will die. (07.6 Passage 2)
分析主干:the thought will die
本句的难点在从句部分。If 引导条件状语从句,从句用了listen to sb. do sth.结构,省略to 的不定式correct 作补语;that 5th grade English teacher 用了借喻的修辞手法,指代你心中的那个“批判性思维”。while 引导的时间状语从句修饰are listening。