2011英語:自考英語（二）輔導(dǎo)資料：過去完成進行時

2011年08月08日 07時32分，《2011英語:自考英語（二）輔導(dǎo)資料：過去完成進行時》由出國留學(xué)網(wǎng)liuxue86.com英語編輯整理.
    過去完成進行時
    1.概念
    (1)表示到過去某個時刻此動作還在進行。
    （2）用在從句中，從句的動作發(fā)生在主句的動作之前而對其有影響。
    ①At last the bus came, I had been waiting for half an hour.
    ②Until then she had been loving her daughter.
    ③Her eyes were red. It was obvious she had been crying.
    ④I heard you’d been looking for me.wｗw.ExamＷ.CoM
    2.基本結(jié)構(gòu)
    S+had+been+doing注意其否定、疑問形式。
    3.現(xiàn)在完成進行時/過去完成進行時
    He’s been smoking for 20 years.
    He’s still smoking.
    He’d been smoking for 20 years when he decided to give it up.
    至過去某個時刻還在進行某動作。
    4.過去完成時/過去完成進行時
    By last week she had collected 2000 stamps.(已完成)
    She had been collecting stamps all these years.(未必完成)
    She had been painting the door all afternoon.(未必完成)
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