将 half 用作分配词

分配限定词 half 用来谈论一个划分为二的群体,在用作分配词的形式有很多种。其它部分也可以用于相同的形式,只是较为少见。

half 后可以接不定冠词(a 或 an)为首的测量单位,在这种用法上,分配限定词为一种测量法。

举例
  • I had half a cup of milk left.
  • I bought half a kilo of flour.
  • He ran half a mile this morning.
  • I will be back in half a minute.

half 可以接名词,但两者之中必须夹带定冠词丶不定冠词丶指示代词或所有格代词。在这种情况下,它指的是一个具体丶实质上的划分。而 half 接 of 并不会改变意思。

举例
  • Half the people have already left.
  • Half of an apple isn't very much lunch.
  • Did you use half my sugar?
  • I will need half of the flour for my cake.
  • I earned half of that money last summer.
  • She found half these frogs in the river.
  • I spent half that time on my project.
  • You can take half of those books back.
  • I've invited half my friends to the party.
  • I've used up half of our eggs.
  • You wasted half your money on that!

half 后可以接 of + 复数代词。

举例
  • Half of us are going.
  • He scolded half of you but he let the rest off.
  • You couldn't find half of them?