基礎學英語英語語法入門

need/want/require/worth

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12.7 need/want/require/worth
 
  注意:當 need, want, require, worth(形容詞)後面接doing也可以表示被動
   Your hair wants cutting. 你的頭髮該理了。
   The floor requires washing. 地板需要衝洗。
   The book is worth reading. 這本書值得一讀。

典型例題
  The library needs___, but it'll have to wait until Sunday. 
A. cleaning  B. be cleaned  C. clean  D. being cleaned
  答案A. need (實意) +n /to do,need (情態)+ do,當爲被動語態時,還可need + doing. 本題考最後一種用法,選A。如有to be clean 則也爲正確答案。
典:done,"不可能已經"。must not do 不可以(用於一般現在時)。

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