4.分数、量词作主语
1) “分数或百分数+名词”构成的短语以及由“a lot of,lots of,plenty of,a large quantity of,a heap of,heaps of,half of+名词”构成的短语作主语时,其谓语动词要与短语中of后面的名词的数保持一致,这是因为短语中后面的名词是中心词,而短语中前面的量词是修饰语,如: About threefourths of the earth’s surface is covered with water.
地球的四分之三被水覆盖。
Threefifths of the workers here are women.这个地方五分之三的工人是妇女。
和这种情况类似的还有“a number of+名词复数”,但是“the number of+名词”的中心词却是number,试比较:
A number of students have gone home.许多学生都回家了。
The number of pages in this book is two hundred.这本书中的页码是二百。
注意:(large)quantities of修饰可数或不可数名词,其短语作主语时,谓语动词一般用复数,如:
Quantities of food (nuts) were on the table.大量的食物在桌子上。
短语in quantity,in large quantities意为“大量”;in small quantities意为“少量”。
2) a great deal of ,a large amount of修饰不可数名词,其短语作主语时,谓语动词通常用单数;large amounts of修饰不可数名词,其短语作主语时,谓语动词通常用复数,如:
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