a number of 是指“大量的”,后面的動詞是復數(shù)形式
e.g.
A number of our classmates love English.
A number of studends are playing.許多學生在玩耍.
這里的a number of = a lot of =many .修飾可數(shù)名詞.
the number of 是指“.的數(shù)量”,后面的動詞是單數(shù)形式
e.g.
The number of our classmates is 45.
The number of students in my class is 56.我的班級的學生數(shù)是56.
這里的the number of 表示數(shù)目.后面的be動詞一般為單數(shù).is/was