新概念英语第一册语法总结：need 用法
need 用法：·表示“需要”时为实意动词，后面可以加名词，也可以加不定式：
I need a pen. Do you need any beer? No, I don’t.
I need to have a rest.
·Need doing=need to be done，表示被动
The flowers need watering.
·Need在否定时做情态动词使用
You needn’t go so early. =You don’t need to go so early.
Must I clean the desk right now? No, you needn’t.
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