关于when从句为过去完成时的疑问

When Anna arrived, we had dinner.与When Anna had arrived,we had dinner.

When Mike finished his homework,he took a short rest.与When Mike had finished his homework,he took a short rest.

是不是这两种表达都可以表达先后，意思一样?

是的，主句的动作都是在从句动作发生后。理论上，when从句用一般过去时，从句的动作发生后，主句的动作紧接着发生。when从句用过去完成时，则从句的动作与主句动作之间有一个时间差。但这种意义的区别很微小，很多人忽略这种差异。

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 1秒前

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