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若修飾復(fù)數(shù)名詞，謂語(yǔ)用復(fù)數(shù)。如：　　

Two thirds of the trees were planted by students. 三分之二的樹(shù)是學(xué)生種的。

One third of the doctors in this hospital are women. 這家醫(yī)院三分之一的醫(yī)生是女性。　　

若修飾單數(shù)名詞（包括單數(shù)可數(shù)或不可數(shù)名詞），謂語(yǔ)用單數(shù)。如：　　

One third of the money is yours. 這些錢(qián)有三分之一是你的。　　

One third of the house is empty. 這房子有三分之一是空的。　　

Three-fourths of the surface of the earth is covered by sea. 地球表面的四分之三是海。