a good many和many a都是许多的意思,那么它们有什么不同呢?为什么一个接复数名词,一个接名词单数?

a number of 和a great deal of 在意思上相同,但用法不一样.a number of 后面只能跟可数名词的复数形式,而a great deal of 后面只能跟不可数名词.例如：A number of accidents always occur on rainy days.雨天常常有许多事故发生.A number of books are missing from the library.图书馆的一些书不见了.I spent a great deal of my time on this work.我在这项工作上花了不少时间.另外,a great deal of 也可说成a good deal of.例如：She spends a good deal of money on clothes every year.她每年在衣服上花了不少钱.除了a number of 之外,也可以用a large/good number of 或(large) numbers of 来表示数量众多,意思为“大量的,众多的” 例如：Numbers of people came from all parts of the country to see the exhibition.许多人从国内来参观这个展览.需要引起注意的是,若用the number of ,后面仍需用名词复数,但谓语动词则应用单数.因为这时表示的是数字,而非数量.例如：The number of books missing from the library is very large.图书馆遗失的图书数量很大.

前面主谓搭配不一样
There is a good many oranges in the garden.
There are many books on the desk.
都是修饰可数名词 [C]

“很多,许多,大量的”,a good many后加可数名词复数
eg a good many apples / people/ boxes/ eggs
和many 的用法差不多

a good deal of大量的,多的.后面跟不可数名词单数谓语
a great many of大量的,很多.后面跟可数名词复数加复数谓语
a good many of大量的,很多的.后面跟可数名词复数加复数谓语
例句：There are a great many books in the library.图书馆里有许多书.
A great dear of money was spent on the project.那项工程花费了大量金钱.
注意—— a great/good many of+代词（them,us,your...)/thr(these,those,your...)

1.可数复数
2.可数复数
3.可数复数或集合名词
4.可数复数
5.one fourth of 可以家可数复数或不可数或集合名词
6.可数复数或不可数

yes.many of is ok

1、“many a＋单数可数名词”形式上为单数,但意义上为复数(意为“许多”).
若用作主语,其谓语通常与形式一致而不与意义一致(即谓语用单数)给个例句：Many a successful store has paid its rent cheerfully.
许多成功的店铺都非常乐意地付了房租 2、“很多,许多,大量的”,a good many后加可数名词复数和many 的用法差不多

1.much of 后要接不可数名词.如：Much of it is of unknown origin.其中大部分内容出处不详.2.mass of 后接不可数名词.如：A great mass of snow has fallen off the roof.从房顶掉下了一大块积雪.3.a good many 后...

a number of表示许多不是修饰不可数的
MUCH和PLENTY修饰不可数表示大量

楼主,1：many,a number of,a few,a lot of接可数 2：much,a little,a great deal of,不可数名词 3：lots of,a lot of,plenty of即可修饰可数,也可以修饰不可数