1、請看一些例句：
    Five minutes is enough to do this exercise．
    Each boy and each girl wants to serve the people in future．
    More than one student has seen the film. Many a ship has been damaged in the storm. More members than one are against your plan.
    2、一些有兩個部分構(gòu)成的名詞表示衣物或工具作主語時, 謂語通常用復(fù)數(shù)形式：glasses, clothes, trousers, shoes, compasses, chopsticks, scissors等。
    但如果主語用a kind of , a pair of , a series of等加名詞構(gòu)成時, 謂語動詞一般用單數(shù)形式。