天津鼓楼不可错过的:needn't 和 don't need 的区别

来源：百度文库 编辑：高考问答 时间：2024/04/28 20:13:50

needn't
need在这里是情态动词,不必要.做MUST的否定句时用.

例如: MUST YOU GO WITH HIM?
NO, I NEED NOT.

翻译: 你必须跟他去吗?
不，我不必.

don't need
need 在这里是实意动词,不需要

例如: DO YOU NEED A PEN?
NO. I DON'T NEED. I HAVE A BALLPEN WITH ME.

翻译: 你需要钢笔吗?
不，不需要. 我身上有只圆珠笔.

needn't 中need作为情态动词，这带有命令的口吻，而don't need 中need是行为动词

needn't=not necessary
do not need=mustn't

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