the number of +复数名词+谓语动词单数
a (good) number of +复数名词+谓语动词复数
两个相同的部分组成整体如:chopsticks,glasses,shoes,socks,boots+谓语动词复数
被 a kind of /a pair of 修饰时, 谓语动词的单复数和pair 和kind 保持一致
a quantity of/quantities of /an amount of/amounts of +名词作主语时候,谓语动词的单复数由quantity 或者amount 的单复数决定
one of+名词复数+定语从句(定语从句中的谓语动词用复数)
the /the only /the right one of +名词复数+定语从句(定语从句的谓语动词用单数)
plenty of /lots of/ a lot of /heaps of /loads of /half of(表示许多,大量)+不可数名词+谓语动词单数
plenty of /lots of/ a lot of /heaps of /loads of /half of+可数名词复数+谓语动词复数