large quantity of、a store of、a mass of、a world of 等短语后既可接复数可数名词,亦可接不可数名词。在它们分别和其后的名词构成短语作主语时,其谓语动词通常随of 后短语的名词的具体情况而采用单数或复数形式。 例如: There is lots of fun and there's lots to ...