Question

请问一个英文句型。高人帮帮忙，谢谢。

原句：In addition，far more Japanese workers expressed dissatisafaction with their jobs than did their counterparts in the 10 other countries surveyed.
did为什么提前？

Answer 1

解释：
1. 此句中的did代指前句的动作expressed dissatisfaction with their jobs，正常情况下应该放在句尾，即原句应该是：than their counterparts in the 10 other countries surveyed did
= than their counterparts in the 10 other countries surveyed (expressed dissatisfaction with their jobs).
2. than此处引导的是比较状语从句，此时该从句一般使用省略语法。
且根据相关语法规定，如果从句的主语较长时，则一般使用此种倒装，以突出所比较的动作。
后面的从句的主语是their counterparts in the 10 other countries surveyed，其中中心词是their counterparts，但是其后有一个长长的后置定语in the 10 other countries surveyed，所以进行倒装。

Answer 2

楼上的回答应该是正确的