124. If I ever had any doubts about how demanding a teacher’s job is, it would have disappeared for good when I spent some time recently in schools.

【结构分析】

1、本句的结构清晰，为主从复合句。

2、it would have disappeared for good when I spent some time recently in schools为主句部分，其中包含一个when引导的时间状语从句when I spent some time recently in schools。

3、If引导的条件状语从句中，had any doubts about后的宾语由how引导的名词性从句how demanding a teacher’s job is充当，how与形容词demanding相连作从句的表语。

4、注意整个句子使用了与过去相反的虚拟语气，从句为if+had done，主句为would/could/should/might+have done的形式。

【参考译文】

如果说我以前还曾怀疑教师的工作有多吃力，那么当我最近在学校中待了一段时间后，我永远改变了原来的想法。