意义一致原则虽然是个相对抽象的概念，但是并不难掌握。了解意义一致原则对初中学生非常重要，因为它也是常见考点之一。今天就让我们一起来学习一下这个知识点吧！

1、表时间、距离、价格、度量等的名词作主语时，谓语动词通常用单数。例如：

Twenty years is not a long time.

Ten dollars is too dear.

2、有些集合名词，如 family/ team等作主语时，如作为一个整体看待，谓语动词用单数；如指其中每个成员，则用复数。例如：

My family is big one.

My family are watching TV.

3、不定代词由 all/ most/ more/ some/ any/ none等作主语时，也要依这些代词表示的意义来决定谓语动词的单复数形式。如果代词代表复数可数名词，谓语动词用复数；如果代词代表单数可数名词或不可数名词，谓语动词用单数。例如：

All of the work has been finished.

All of the people have gone.

4、疑问代词作主语时，其谓语动词也有两种情况：主语表示复数意义，谓语动词用复数；主语表示单数意义，则谓语动词用单数。例如：

Who is your brother?

Who are League members?

5、“分数或百分数+ of+名词”构成的词组作主语时，其谓语动词要以 of后面的名词而定。名词是复数，谓语动词用复数：名词是单数，谓语动词用单数。例如：

It is said that 35 percent of the doctors are women.

Three-fourths of the surface of the earth is sea.

6、 half/ the rest等表示不定数量的名词作主语时，如果所指为复数意义，动词用复数；如果所指为单数意义，动词用单数。例如：

I have read a large part of the book, the rest is more difficult.

Only ten students attended the class because all the rest were off sick.

7、由 what引导地主于从句作主语时，通常谓语动词用单数形式。但如果所指内容为复数意义时，谓语动词用复数形式。例如：

What she said is correct.

What she left me are a few old books.

8、凡是以“定冠词+形容词（或分词）”作主语，往往根据意义一致的原则决定谓语动词的单复数形式。如果这种主语指的是一类人，谓语动词用复数；如果指的是一个人或抽象概念，谓语动词用单数形式。例如：

The sick have been cured and the lost have been found.

The dead is a famous person.

通过以上学习，现在清楚什么是意义一致原则了吗？