用于一对物体的分配词

分配限定词 both丶either 和 neither 论及的是一对物体的分配。一般来说,这些字词不能用来谈论任何超过两个个体的群体,也不能用来指不定大小的群体,只能用来论及可数名词。

both 的用法

both 同时指一对事物,相当于「其一和另一」。both 可以接复数名词,或者接 of +(定冠词)+ 复数名词。当 both 后面要接一个复数代词时,一定要在中间加上 of 来隔开。both 不能接单数名词,因为这个分配词涉及的是两个物体。

举例
  • Both children were born in Italy.
  • Both the children were born in Italy.
  • Both of the children were born in Italy.
  • Both my parents have fair hair.
  • Both of my parents have fair hair.
  • Both of us like skiing.
  • I told both of them to calm down.

either 的用法

either 用于肯定句。当单独使用时,指的是两者整体,意思相当于「其一或另一」。由于 either 指的只是两者之间的其中一者,就必须接单数名词。但如果后面接了 of,则可以接复数名词或复数代词。

举例
  • I can stay at either hotel.
  • Either day is fine for me.
  • There are two chairs here. You can take either of them.
  • Either of you can come.
  • Either of the hotels will be fine.
  • I can eat either of the salads.

当依次谈到两件事物,就可以用 either... or... 的句型。这种结构并不会改变意思,但在此种情况下,either 的作用就不是分配词,而是连接词。

举例
  • You can have either ice cream or chocolate cake.
  • I will come on either Thursday or Friday.
  • You can either come inside or put on your raincoat.

neither 的用法

neither 用于否定句。当单独使用时,指的是两者整体,意思相当于「不是其中一个也不是另外一个」。由于 neither 指的只是两者之间的其中一者,因此必须接单数名词。但如果后面接了 of,就可以接复数名词或复数代词。

举例
  • Neither chair is any good.
  • Neither brother came.
  • Which bag do you want? Neither of them.
  • Neither of us were on time.
  • I think neither of these dresses fits me.
  • Neither of the children wanted to go.

当依次谈到两个事物时,就可以用 neither... nor... 的句型。这种结构并不会改变意思,但在此种情况下,neither 的作用就不是分配词,而是连接词。

举例
  • You can have neither cookies nor candy.
  • It is neither raining nor snowing.
  • She is neither tall nor short.