liu的小天地 世间百态 a number of的用法 a number of的意思

a number of的用法 a number of的意思

a number of : 解析:  a number of = numbers of, 表示“许多”,后面只能接复数名词,如 a number of students(许多学生)。number前可用large,great 或small等形容词修饰,若强调“大量的”“许多的”,可在number前加large或great,如 a great number of books(大量的书籍),a large number of visitors (大量的游客)。若number前出现small,则表示“数量不多”,如 a small number of animals(为数不多的/ 少量的动物)。例如:
I have a number of important things to do today. 今天我有很多重要事情要做。
The Great White Sharks have attacked a number of people off the beaches of America. 大白鲨在美国的近海岸袭击过很多人。
注意:  a number of = numbers of = a great number of = a large number of = large numbers of, 这些短语修饰的名词作主语时,谓语动词用复数。例如:
译:最近这些年,我的家乡建起了大量的楼房。
正:A number of buildings have been built in the last few years.
正:Numbers of buildings have been built in the last few years.
正:A large number of buildings have been built in the last few years.
正:A great number of buildings have been built in the last few years.
正:Large numbers of buildings have been built in the last few years.
辨析:  a number of ;the number of
由于number 前面的冠词不同,导致了这两个短语在意义和用法上的不同,具体区别是:a number of 后接复数名词,表示“许多的”,谓语动词用复数。the number of 突出了定冠词的作用,即特指“……的数目”“……的数字”“……的总数”,后接复数名词,但决定谓语动词的是number, 所以谓语动词用单数。例如:
A number of students in our school are League Members. 我校许多学生是团员。
The number of students in our school is 2,000. 我校学生人数是2,000人。
There are a number of people swimming in the river. 有很多人在河里游泳。
The number of books borrowed from the library is large. 图书馆被借的书很多。

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