2017北京高考英语试卷及解析-2017高考英语易错词汇解析:beforelong与longbefore

副标题:2017高考英语易错词汇解析:beforelong与longbefore

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before long与long before
  1. before long 的意断是“不久,很快”。如:
  I‘ll be back before long. 不久我就回来。
  Before long he got married. 不久他就结婚了。
  2. long before有两个用法:
  (1) 老早,早就(单独使用,表示比过去某时早得多的时间)。如:
  She had left long before. 她老早就离开了。
  That had happened long before. 那事老早就发生了。
  注:long ago 表示“很久以前”,指的是从现在算起的很久以前,通常与一般过去时连用:
  I met him long ago. 我很久以前就认识他了。
  (2) 在……的很久以前,在还没有……的很久以前。如:
  She had left long before his return [he returned]. 在他回来的很久以前她就走了。
  He had worked in the factory long before he got married. 在他还没有结婚的很久以前他就在这家工厂工作了。
  注:此时的主句谓语通常用过去完成时,但有时也可用一般过去时(因为 before 已体现了动作的先后关系)。如:
  This happened long before you were born. 这事在你还没出生以前很久就发生了。
  另外注意以下句式:
  It is [was, will be] long before……在……前需要很久。如:
  It was long before he came back. 过了好久他才回来。
  It won‘t be long before we see each other. 不久我们又会见面的。
  比较:
  It wasn‘t long before he realized his mistake. / Before long he realized his mistake. 不久他意识到了自己的错误。
  同义词辨析agree with, agree to和agree on
  辨析agree with, agree to和agree on
  (1)agree with的意思是“同意”,“赞成”。后面常接表示人或意见(看法)的名词或代词作宾语。如:
  Does she agree with us?她同意我们的意见吗?
  None of us agree with what you said.我们没有一个人同意你讲的话。
  (2)agree with还有“与……一致”,“(气候、食物等)适合”的意思。如:
  His words do not agree with his actions.他言行不一致。
  Too much meat doesn‘t agree with her.吃太多食物对她身体不合适。
  注意:agree with不能用于被动语态。
  (3)agree to意为“同意”,“赞成”,后面跟表示“提议”,“办法”,“计划”,“安排”等的名词或代词。如:
  Please agree to this arrangement.请同意这个安排。
  This plan has now been agreed to.这个计划已经被认可了。
  (4)agree on表示“对……取得一致意见”,指两方或多方就某个问题取得了一致的意见或是达成了某种协议。如:
  After discussion the two sides agreed on a cease-fire.经过讨论,双方就停火问题达成了协议。
  They all agree on the matter.他们在这个问题上意见一致。

2017高考英语易错词汇解析:before long与long before.doc

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