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英語before用法小結

時間:2020-12-31 12:49:51 考試英語 我要投稿

英語before用法小結

  Before 在英語中是一個比較常用的`虛詞,它既可作介詞或副詞用,也可作從屬連詞用.在近幾年的高考試題中常常出現(xiàn)考查其從屬連詞用法的題目.下面就把其作為從屬連詞的用法歸納如下:

英語before用法小結

  1.表示“在…..之前就…..”.

  Mary had finished her homework before her mother returned.

  2.表示“過了多久后才……..,動作進行到什么程度才……”

  The man almost knocked me down before he saw me .

  They walked about 30 miles to the west before they saw a village .

  They worked day and night about three days before everything returned to normal .

  3.表示“來不及; 尚未…..就…”

  Before I could get in a word ,he had measured me .

  He ran off before I could stop him .

  She left the company before I could have a word with her .

  4.表示“剛…就…”

  I had hardly sat down before the bell rang.

  5.表示“不知不覺就…..; 還沒弄清就……”

  Time passed quickly and three months went by before Aqiao knew it.

  6.表示“寧愿…,決不…,與其…,毋寧….”常與will 或would 連用.

  I would die before I would tell

  I’d shoot myself before I apologized to him.

  I would / will die before I surrender .

  7.表示“否則;以免”

  Do it now before you forget .I will write it down before I forget it .

  8.用于句型“it was +時間段+ before …” 表示 “過了多久才…”

  It was three days before he came back..

  9.用于句型 “ it was not long +時間段+ before …” 意為“不久就….”

  It was not long before he sensed the danger of the position .

  10.用于句型“it will be(not )+時間段+ before….”表示“要過多久/ 不久…才…”

  It will be half a year before you graduate from this school .

  It will be not long before you find you are wrong .

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