有的同學(xué)有時候不太能很快速、準確的判斷出句子中的過去完成時用法,下面,小編收集了大量相關(guān)知識,今天就給大家講講,如何能判定過去完成時,一起來看看吧!

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  1. 由時間狀語來判定

  一般說來,各種時態(tài)都有特定的時間狀語。與過去完成時連用的時間狀語有:

 ?。? )by + 過去的時間點。如:

  I had finished reading the novel by nine o'clock last night.

 ?。? )by the end of + 過去的時間點。如:

  We had learned over two thousand English words by the end of last term.

 ?。? )before + 過去的時間點。如:

  They had planted six hundred trees before last Wednesday.

  2. 過去的過去來判定。

  過去完成時表示“過去的過去”,是指過去某一動作之前已經(jīng)發(fā)生或完成的動作,即動作有先后關(guān)系,動作在前的用過去完成時,在后的用一般過去時。這種用法常出現(xiàn)在:

 ?。? )賓語從句中

  當賓語從句的主句為一般過去時,且從句的動作先于主句的動作時,從句要用過去完成時。在told, said, knew, heard, thought等動詞后的賓語從句。如:

  She said that she had seen the film before.

 ?。? )狀語從句中

  在時間、條件、原因、方式等狀語從句中,主、從句的動作發(fā)生有先后關(guān)系,動作在前的,要用過去完成時,動作在后的要用一般過去時。如:

  After he had finished his homework, he went to bed.

  注意:before, after 引導(dǎo)的時間狀語從句中,由于before 和after 本身已表達了動作的先后關(guān)系,若主、從句表示的動作緊密相連,則主、從句都用一般過去時。如:

  After he closed the door, he left the classroom.

 ?。?)表示意向的動詞,如hope, wish, expect, think, intend, mean, suppose等,用過去完成時表示"原本…,未能…"

  We had hoped that you would come, but you didn't.

  3. 根據(jù)上、下文來判定。

  I met Wang Tao in the street yesterday. We hadn't seen each other since he went to Beijing.

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以上就是有關(guān)過去完成時的語法判定的所有內(nèi)容了,希望對大家的學(xué)習(xí)有所幫助,趕快收藏起來吧~