[动词的语态]needwantrequireworth

[动词的语态]needwantrequireworth,第1张

[动词的语态]needwantrequireworth,第2张

当 need, want, require, be worth后面接doing时,表示的是被动意义。例如:

  Your hair wants cutting. 你的头发该理了。

  The floor requires washing. 地板需要冲洗。

  典型例题

  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 (实意) +n /to do,need (情态)+ do,当为被动语态时,还可need + doing. 本题考最后一种用法,选A.如有to be cleaned 则也为正确答案。

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