英语过去式有哪些?词和作文都要
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英语过去式有哪些?词和作文都要
英语过去式有哪些?
词和作文都要
英语过去式有哪些?词和作文都要
.一般过去时
概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为.
2.时间状语：ago,yesterday,the day before yesterday,last week(year,night,month…),in 1989,just now,at the age of 5,one day,long long ago,once upon a time,etc.
3.基本结构：be动词；行为动词
4.否定形式：was/were+not;在行为动词前加didn't,同时还原行为动词.
5.一般疑问句：was或were放于句首；用助动词do的过去式did 提问,同时还原行为动词.
6.例句：She often came to help us in those days.
I didn't know you were so busy.
过去完成时：
1.概念：以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”.
2.时间状语：before,by the end of last year(term,month…),etc.
3.基本结构：had + done.
4.否定形式：had + not + done.
5.一般疑问句：had放于句首.
6.例句：As soon as we got to the station,the train had left.
By the end of last month.We had reviewed four books
概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为。
时间状语：ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, et...
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概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为。
时间状语：ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
基本结构：be动词；行为动词
否定形式：was/were+not;在行为动词前加didn't，同时还原行为动词。
一般疑问句：was或were放于句首；用助动词do的过去式did 提问，同时还原行为动词。
例句：She often came to help us in those days.
I didn't know you were so busy.
过去完成时：
概念：以过去某个时间为标准，在此以前发生的动作或行为，或在过去某动作之前完成的行为，即“过去的过去”。
时间状语：before, by the end of last year(term, month…),etc.
基本结构：had + done.
否定形式：had + not + done.
一般疑问句：had放于句首。
例句：As soon as we got to the station, the train had left.
By the end of last month. We had reviewed four books
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