Big buildings are an impressive part of a city.这句为什麽用are不用is

问题描述:

Big buildings are an impressive part of a city.这句为什麽用are不用is
上面的这句话an是修饰part的吧,但是前面为什么要用负数的are,和后面的an不矛盾么?

谓语一般需与主语一致,称为主谓一致.因主语是big bulidings为复数,所以复数谓语动词.
希望能帮助你,有疑问再追问,满意请点“采纳”主谓一致以后,就不用考虑谓语后面的宾语an impressive part的关系了是么?是要与主语保持一致就可,不用管宾语的单复数是么,所有的句式都是遵循这个原则么?一般是这样。但是what开头的主语从句,可以根据表语来确定用单数还是复数谓语动词。e.g. What we need is enough water.What we need are enough books.