题目
英语高手来:时间状语从句完成时
电脑网络连接时,出现提示:Please don't forget to log out after you have finished.
after后面是一个时间状语从句,为什么这句话用了现在完成时?什么时候要用现在完成时?
电脑网络连接时,出现提示:Please don't forget to log out after you have finished.
after后面是一个时间状语从句,为什么这句话用了现在完成时?什么时候要用现在完成时?
提问时间:2020-08-03
答案
此处使用现在完成时表达的是将来完成时( you will have finished )的含义,因为在时间和条件状语从句里经常用一般现在(有时也用现在完成时)表示将来事 情.
例:When you have finished the report, I will have waited for about 3 hours.(等你完成这份报告的时候,我就已经等了将近3个小时了.)
Don't get off the bus untill it has stopped.
Once she has made up her mind, nobody can change it.
希望对你有所帮助.
例:When you have finished the report, I will have waited for about 3 hours.(等你完成这份报告的时候,我就已经等了将近3个小时了.)
Don't get off the bus untill it has stopped.
Once she has made up her mind, nobody can change it.
希望对你有所帮助.
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