2020天津武警考军校考试-词汇和语法结构（十一）

(八) 主谓一致

2.意义一致

(1)有and连接两个或两个以上的并列主语时，但是表示同一人或事物，或代表一个概念，动词用单数，否则用复数:

e.g. The professor and president of our school is retired.

(2)主语为all, half, most, some, any, none等不定代词时，通过上下文确定其实际意义，谓语动词的单复数形式则根据主语的实际意义来决定。

e.g. His weekends? Half are spent in the country. 他的周末?一半是在乡下度过的。

His time? Half was spent on books. 他的时间?一半是花在了读书上。

(3)以下这些不定代词everything/nothing/something/everybody/nobody…等和所有物质名词如： water, air, soil, glass, wood…等都看成单数。

e.g. Nobody knows where he is.

Air is a tasteless and colorless gas.