a quantity of 谓语单数还是复数
a quantity of+可数名词复数、谓语动词用复数;a quantity of+不可数名词、谓语动词用单数。即修饰可数或不可数名词均可,作主语时采取就近一致的原则,其谓语动词通常与短语中of后面的名词的数保持一致。例如:A large quantity of beer was sold out。A large quantity of blouses were on sale。
若单独用quantity作主语,谓语动词用单数。如:It is used to emphasize that the quantity is very large。它用于强调数量很大。若该结构变成(large)quantities of…这样的形式,则当它用作主语时,其谓语动词一律用复数。如:Huge quantities of oil were spilling into the sea。大量的石油渗到海里。
可数名词和不可数名词的不定量表示:some、any、plenty of、a lot of、a large quantity of等能同进修饰可数名词与不可数名词。例如:The ladey has stored a large quantity of vegetables for the winter。这位女士储存了大量蔬菜,供冬天食用。结构分析:The ladey是主语,hasstored是谓语(现在完成时),a large quantity of vegetables是宾语,for the winter是状语。
The farmer has stored a large quantity of hay for the cows。这个农民储存了许多干草,供奶牛吃。There are plenty of storybooks for the children。有许多故事书可供孩子们阅读。结构分析:There be+名词词组+状语。
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