Either…Or 与 Neither…Nor 用法详解
什么是 Either…Or 和 Neither…Nor?
Either…or 表示“要么……要么……”,用于提出两个选项中的一个。
Neither…nor 表示“既不……也不……”,用于否定两个选项。
它们都属于关联连词(correlative conjunctions),连接两个对等的成分(如名词、动词、从句等)。
Either…Or 用法
结构: Either A or B
- You can either stay here or come with us.
- Either my brother or my sister is coming to the party.
注意:当连接两个主语时,谓语动词通常与靠近它的主语保持一致(就近原则)。
Neither…Nor 用法
结构: Neither A nor B
- Neither Tom nor Jerry likes spicy food.
- She neither called nor texted me yesterday.
同样遵循就近原则:动词形式由 nor 后面的主语决定。
⚠️ 注意:Neither…nor 本身已含否定意义,因此句子中不能再加其他否定词(如 don't, doesn't 等),否则会造成双重否定。
常见错误对比
- ❌ I don’t like neither coffee nor tea. (双重否定)
✅ I like neither coffee nor tea.
- ❌ Either he don’t go or she don’t stay.
✅ Either he doesn’t go or she doesn’t stay.
小测验
请选择正确的句子:
A. Neither Alice or Bob are here.
B. Neither Alice nor Bob is here.
正确答案:B