新概念英语第一册语法总结:过去完成时
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发布时间:2019年03月22日 08:49:02 来源:环球网校 点击量:
【摘要】小编给大家带来新概念英语第一册语法总结:过去完成时,希望对大家有所帮助。
过去完成时用法:在过去的时间里,两个动作中,发生在前的哪个动作要用过去完成时。
结构:had+过去分词
After she had finished her homework, she went shopping.
They had sold the car before I asked the price.
The train had left before I arrived at the station.After/before引导的时间状语从句放在句首要在句子后面加逗号,如果放在主句后则不用加?!?变疑问句将助动词移到句首
Had she finished her homework?★ 变否定句在助动词后面加not
She hadn't finished her homework.★ 肯定回答及否定回答
Yes, she had. / No, she hadn't.★ 特殊疑问句
What had she done?
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