a number of 与 the number of的语法,一定要清楚!

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a number of 与 the number of的语法,一定要清楚!

a number of 与 the number of的语法,一定要清楚!
a number of 与 the number of的语法,一定要清楚!

a number of 与 the number of的语法,一定要清楚!
二者的区别涉及到主谓一致的问题,英语中有两个相似的短语:a number of与the number of,它们修饰名词作主语时,谓语的数是不一样的.
  (1)a number of为量词短语,表示“许多……”,中心词是这个短语所修饰的复数名词,所以作主语时,谓语动词用复数形式.如:
  A number of students of our school have read that magazine.
  我们学校有很多学生都看过那本杂志.
  A number of wild animals have been found in the forest.
  森林里发现了很多野生动物.
  (2)the number of表示“……的数量”,中心词为number,指的是of后边名词的数量,数量是个抽象概念,因此谓语动词用单数.如:
  The number of students in our school has grown from 1,000 to more than 1,500.
  我们学校学生的数量从1000名增加到1500多名.
  The number of wild animals has become less and less in recent years.
  最近几年里,野生动物的数量逐渐减少.

the number of+名词复数 做主语当单数例句:The number of visitors to Frinley has now increased.
a number of的意思是“若干”或“许多”,相当于 some 或 a lot of,和复数名词连用。当它出现在主语前时,谓语动词和主语搭配。