对,只看你名词是单数还是复数而已,凡是复数都是are,were,do,单数都是is,was,does.不可数属于单数.如果是合集名词,比如说class,people,指整个整体的时候是单数(Thepeopleshouldnotbeafraidofthegovernment~),指里面的单个的时候是复数(Peopleareunhappyaboutthepolicy.).