過去完成時(past perfect tense)表示在過去某一時間或動作以前已經完成了的過去動作。簡言之,完成過去完成時所表示的時過時間就是 過去的過去 。過去完成時由助動詞had + 過去分詞構成。去完
過去完成時的本概用法
1)過去完成時表示在過去某一時間或動作以前業已完成的動作。這個過去的念和時間可以用by,before等介詞短語或一個時間狀語從句來表示。形式如:
By the end of last week we had learned ten lessons.到上周末為止,過去我們已經學了十課書。完成
He had learned some English before he came to the institute.他來學院之前學過一些英語。時過
I didn't go to the film because I had seen it twice.我沒去看電影,去完因為這片子我已看過兩次了。本概
When I had gone over my lessons I took a rest.我復習完功課之后,念和休息了一會兒。形式
I gave my little sister the flowers that I had bought for her.我把給妹妹買的過去花送給她。
In the exhibition he saw many oil paintings that he had never seen before.他在展覽廳里見到許多過去從未見過的油畫。
2)過去完成時可以表示由過去某一時間開始,一直延續到過去另一時間的動作,常和for(有時可以省去)或since構成的短語或since引導的從句連用。如:
It rained yesterday after it had been dry for many months.在天旱了好幾個月之后,昨天下雨了。
By the I read his new book, I had known him for a long time.到我讀他的新書時,我早就知道他了。
He said that great Changes had taken place in his hometown since,1980. 他說7980年以來他的家鄉大變樣了。
[注]當一個由when,before,after,as soon as等連詞引導的從句所表示的動作和主句的動作緊接時,兩個動作均可用 一般過去時 來表示。如:
We had breakfast after we did morning exercises.做完早操后,我們吃早飯。
When I finished supper,I took a walk.我晚飯后就去散步。
The train started to move just before he reached the platform.他到月臺時火車剛開走。
They started ploughing as soon as they got to the fields.他們一到地里就開始耕地。
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