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2012年托福考试语法辅导:动名词作介词宾语

中华考试网   2012-01-30   【
动名词作介词宾语
  名词作宾语时,之后不能再接宾语,这一缺陷可由动名词弥补。
  如:before doing the job , after getting back
  改错题中常把应该用动名词作宾语的地方误用为名词或不定式,需留心陷阱
  例题:
  (1)
  The Conestoga wagon, used for to carry heavy loads over long distances, originatedaround 1725 in a region of Pennsylvania occupied by the Conestoga Indians.
  应改为:carrying.
  解释:不定式不能作for的宾语, 改为动名词即可
  (2)
  Copper sulfate, spread in judicious amounts, kills algae ----harming fish or aquatic invert-ebrates.
  (A) does not
  (B) but does no
  (C) except
  (D) without
  答案:D
  解释:harming 是动名词形式, 因此要求前面的词是介词或可接动名词的动词. A B 可首先排除; C 虽是介词, 但与句意不符.
  (3) Mary Ann Hardy was known for her skill to paint miniature watercolor portraits on ivory.
  应改为:in painting
  解释:后置定语修饰名词,什么方面的技能,不能用不定式。
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