初中英语语法大全:need/want
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12.7 need/want/require/worth
注意:当 need, want, require, worth(形容词)后面接doing也可以表示被动。
your hair wants cutting. 你的头发该理了。
the floor requires washing. 地板需要冲洗。
the book is worth reading. 这本书值得一读。
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 clean 则也为正确答案。
典:done,"不可能已经"。must not do 不可以(用于一般现在时)。
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