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2013年最新公共英语考试一级写作语法(1)

阅读 :
   worth 的用法
  worth,worthy,worth-while都为adj. 意为"值得".
  1. worth:be worth + n.  当名词为金钱时,表示"…… 值得……"
  be worth doing sth. "……某事值得被做"
  The question is not worth discussing again and again.
  2. worthy:be worthy of +n. 当名词为抽象名词时表示"……值得……"
  be worthy to be done "某事值得被做"
  The question is not worthy to be discussed againand again.
  3. worth-while:be worth-while to do sth  "值得做某事"
  worth while:It is worth while doing sth
  It is worth while sb to do sth.
  典型例题
  It is not ____ to discuss the question again and again.
  A.worth B.worthy C.worth-while D.worth while
  答案C. 由worth的用法可知,此句只适合词组be worth-while to do sth..因此选C.

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