1.可數(shù): many,a number of,several,both,a couple of,few (fewer--fewest).

2.不可數(shù): much,a greatdeal of,an amount of,a sum of,little(less--least),quantity of

3.都可: a lotof,lots of,plenty of,some,most,all.

4.mostof,all of,some of,many of,much of “不定代詞短語(yǔ)”修飾名詞時(shí),名詞前必須要有" the "(表名詞為特指).

Most of the books are interesting.

Most books ... ...

5.上述結(jié)構(gòu)中, 句中“主語(yǔ)的數(shù)”取決于介詞 of 后面“名詞的數(shù)”

1.復(fù)數(shù)原則:表示“復(fù)數(shù)概念”的就用復(fù)數(shù)形式.

2.單數(shù)原則:表示“單數(shù)或抽象”的概念，就用單數(shù)形式.

3.特殊情況:

1)就“近”原則:有 ... or ... 形式的( ... or ...; either... or...; neither...or...; not only... but also... ) 

There be … 句型   

Not only the students but also their teacher is invited to attend the party.

2)就“前”原則:...,as well as ... + V. (補(bǔ)充說明成分:with,along with,rather than)     

My mother, as well as my two brothers  has  a key to the office.

3)a number of / a total of / an average of + 復(fù)數(shù)名詞 + 動(dòng)-復(fù);(a 表示“大量”)

the number of / the total of / the average of + 復(fù)數(shù)名詞 + 動(dòng)-單;(the 表示“什么東西的數(shù)量”, 是個(gè)抽象概念 ) 

4)the adj./ v-ed 表示“一類人”時(shí)，動(dòng)-復(fù)，表示“抽象概念”時(shí)，動(dòng)-單

5)every, each 后面的名詞為單數(shù)

Each book and magazine is listed in the card catalog.

each of, one of 后面的名詞為復(fù)數(shù)       

Each of the students has a schedule.

many a 后面的名詞為單數(shù)       

Many a college student wishes to return to the easy days of high school.