(1) 集体名词在句中意指整体概念，谓语动词用单数形式；如在句中意指其具体成员，谓语动词用复数形式，这些集体名词包括：army ,audience , class, committee ,crowd ,crew, couple ,family ,group ,staff, team , public, cabinet ,band, jury, herd.

　(2)单复数同形的名词作主语时，要根据句子意思来确定谓语动词的单复数形式，单复数同形的名词包括：aircraft, deer ,fish ,sheep ,means ,species ,series ,works, crossroads.

　(3)more than one 后接单数可数名词作主语时，动词用单数形式。但如果其本身作主语时，动词用复数。

　(4)插入语可忽略不计，具体看主干成份的单复数。两个作主语用的名词由介词with， as well as , together with, along with , accompanied with , including, except, but, as much as , instead of , in addition to , no less than ,besides连接时，谓语动词一般和with等前的一个名词或代词的人称和数一致。

　（5）a large quantity of , a lot /lots of , some of , all , more than, most of, plenty of , a part of , (a) half (of ) 后接不可数名词时，谓语用单数，接可数名词时，谓语用复数。

　　(6)A number of +复数名词，an average of +复数名词， these kinds of + 名词 what kinds of +单数名词, the rest of +复数名词, most of +复数名词 后接谓语复数形式；如果a(n) 变成 the 或者the rest of (most of )+单数，what kind of +单数名词 后面为单数。

   （7）Not only A but also B, neither A nor B , either A or B ， A nor (or) B , 由B定

         (8)trousers, pants, pyjamas, knickers（女内衣裤）, shorts, briefs（三角裤）, scissors, pliers手钳）, pincers（铁钳） , glasses, tongs作主语时，谓语用复数，但如用 a pair of 来修饰时，谓语可用单数。

          (9)一个句子由there或here引起，主语不止一个， 谓语一般和最靠近的主语一致。 Here is an envelope, a few pens.