主谓一致（Subject- Verb Agreement），指”人称”和”数方面的一致关系.如: He is going abroad. They are playing football.　可分为:语法一致， 内容一致， 就近一致.今天着重计解内容一致的原则。

内容一致原则:

1.主语中有all, half, most, the rest等, 以及”分数或百分数+名词”做主语时,谓语动词单复数取决于连用的名词.如:
The rest of the bikes are on sale today.    剩下的自行车， 今天出售。
60%of the apple was eaten by little boy.   这个苹果的60%都被这个小男孩吃了。
Most of the apples were rotten.       大部分的苹果都是烂的。
Most of the apple was eaten by a rat. 这个苹果的大部分被老鼠吃了。
 
2. 不定数量的词组, 如:part of , a lot of , lots of , one of , a number of , plenty of等作主语时, 谓语动词的单复数取决于量词后面名词的数.如:
A part of the textbooks have arrived. 一小部分教科书已运到。
A part of the apple has been eaten up by the pig. 这个苹果的一部分被猪吃光了。
 
3. 加减乘除用单数.如:
Fifteen minus five is ten . 15减去5等于10。
 
4. 表示时间, 金钱, 距离, 度量等的名词做主语时, 尽管是复数形式, 它们做为一个单一的概念时, 其谓语动词用单数.如:
Ten miles is a good distance. 十英里是一个相当的距离。
 
5. (1) 通常作复数的集体名词. 包括police , people, cattle 等, 这些集体名词通常用作复数.如:
   The British police have only very limited powers.
(2) 通常作不可数名词的集体名词. 包括equipment, furniture, clothing, luggage 等.
(3) 可作单数也可作复数的集体名词. 包括 audience, committee, government, family, enemy, group, party, team, public 等.如:
The committee has/have decided to dismiss him. 委员会决定解雇他。
 
6. the +形容词/过去分词形式”表示一类人或事物, 作主语时, 谓语动词用复数.如:
The injured were saved after the fire.