英语中有些名词的形式永远是复数形式,但其谓语动词既可用单数,也可用复数,这取决于前面的限定词.如:means, series, species. series 举例: 1)There are four TV series programs. 2)This new series is beginning next month. 3)These new series of books have won the Award. 4) These new series are beginning next month.