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use to的用法总结

  1、use可以作动词和名词

  (1) 作动词时,“使用,利用,服用(毒品)”

  过去式used,过去分词used,现在分词using.

  (2) 作名词时,“使用,使用权,功能”

  形容词useful , 副词usefully

  2、关于use 的三个固定句型:

  (1) used to do sth. "过去常常做某事"

  (2) be used to do sth. "被用来做某事"

  (3) be used to doing sth "习惯做某事"

  3、辨析:

  (1)used to do sth. "过去常常做某事"

  to 后加动词原形,否定句为didn't use to或used not to

  eg: I used to take a walk after supper every night.

  (我过去常常在每天晚上饭后去散步)

  (2) be used to do sth. "被用来做某事"

  to 后加动词原形

  eg: Wood is used to make paper.

  (木材被用来造纸)

  (3) be used to doing sth "习惯做某事"

  to是介词,后加名词,动名词或代词

  eg: He is used to getting up early.

  (他习惯早起)

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