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考研英语语法难点精析2--too...to结构表示肯定含义的情况

2016-09-28 01:55:18 来源:北外网课

  考研英语虽然没有专门针对语法的题目,但语法知识掌握不牢固,无论是写作、阅读还是听力都很难得高分,北外小编今天就给大家分享考研英语语法难点之too...to结构表示肯定含义的情况。

 我们知道too...to结构一般表示否定含义,意为"太...以致于不能"eg:He is too old to work.
  但too...to在下列情况下却表示肯定含义:
  
 (1)当too前或to前有否定词构成双重否定时.
  eg:English is not too difficult to learn.  英语并不太难学.
  He is too wise not to see that.         他很聪明,不会不懂这一点.
  
 (2)当too后是glad, pleased, happy, delighted, satisfied, ready, willing, kind, apt, good, true, easy,near, careful, well, early, delicious, eager, anxious等形容词或副词时.
  eg:They are too anxious to leave.
  他们急于离开.
  He is too ready to help others.
  他总是乐于助人.
  与这些词连用时,too前还常加上only,all,but,just,simply等副词,意思不变,因为这些词加上too后与very同义.
  eg:I'm only too glad to see you .
  见到你非常高兴.
  They are but too pleased to hear the news.
  他们听到这个消息,非常高兴.
  
 (3)与cannot连用时.
  eg:You cannot be too careful(=You can never be careful enough) to do your homework.
  你做作业越仔细越好(=无论怎样仔细也不过分).
  
 (4)当不定式在句中作定语或真正的主语时.
  eg:There are too many problems to be solved.
  有很多问题有待解决.
  It is too much to say that he is a fool.

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