初一下学期英语语法：need want

　　 need/want/require/worth的 初一下学期英语语法拓展知识点：

 
留心：当 need, want, require, worth(形容词)后面接doing也可能表示被动。
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。

典型初一下学期英语语法例题
The library needs___, but it'll have to wait until Sunday.　
A. cleaning　 B. be cleaned　 C. clean　 D. being cleaned
谜底A.初一下学期英语语法讲解 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。