4.一些表示数量的短语与名词连用时候，谓语动词的数取决于名词的数，名词是复数，谓语动词用复数，反之就用单数。这些短语包括：a lot of /lots of; plenty of/heaps of; half of; two-third (three-fourth…) of; eighty(ten， twenty…) percent; part of; rest of ; none of 等等

Two-thirds of people present are women

Lots of damage was caused by the fire

5.集体名词作主语时，谓语动词的数取决于主语表示的意思和数，当表示整体时候，谓语动词就用单数，当强调集体中的个体时候，谓语动词就用复数。这些集体名词如：army， audience， band ，government ，group ，flock， police， public ，staff ，team ，troop. Crowd， firm， family 等等

The family is the basic unit of our society

The family were watching the TV

The audience was enormous

The audience were greatly moved at the words

6.某些固定结构中主语与谓语的数：

第一组：

a great many + 可数名词复数 谓语用复数

a number of + 可数名词复数 谓语用复数

the majority of + 可数名词复数 谓语用复数

第二组;

the number of + 可数名词复数 谓语用单数

each/every + 可数名词复数 谓语用单数

neither/either of + 可数名词复数 谓语用单数

one and a half + 可数名词复数 谓语用单数

第三组;

more than one + 可数名词单数 谓语用单数

many a + 可数名词单数 谓语用单数

第四组;

the greater part of

a large proportion of

50% of

one third of

plenty of

the rest of

谓语的数与of 后面的名词一致