一道SAT语法IS题(a squadron of newly trained,enthusiastic firefighters from training academies,each year they graduate )to begin work in the nation's cities.为什么原句不行?要改成 Each year a squadron of newly trained,enthusiastic firefighters graduates from training academies.a squadron of newly trained,enthusiastic firefighters 谓语为何是单数?a group of students 难道谓语也是单数吗?
问题描述：
一道SAT语法IS题
(a squadron of newly trained,enthusiastic firefighters from training academies,each year they graduate )to begin work in the nation's cities.
为什么原句不行?要改成 Each year a squadron of newly trained,enthusiastic firefighters graduates from training academies.
a squadron of newly trained,enthusiastic firefighters 谓语为何是单数?
a group of students 难道谓语也是单数吗?
答
一、语法上有一些问题,graduates要和介词from 连用.
二、比较一下,原句比较繁琐,第二个句子简洁,且表述很清楚.
三、第二个句子较原句读起来很顺.
主语是a squadron of ,“一个装甲队”,强调的是整体,而不是个体,因此谓语动词用单数.
主语的单复数决定谓语动词的单复数.