主谓一致 5 个易错点——and 连接、时间金钱用单数、the number of vs a number of
引言
主谓一致除了 of 结构、就近原则、就远原则三大考点,还有一些常考的"坑":and 连接什么时候用复数?时间、金钱作主语用单数还是复数?
这篇文章把主谓一致的高频易错点整理出来,考前看一遍少丢分。
易错点一:and 连接用复数(特殊情况除外)
一般情况下,and 连接两个主语,谓语用复数:
```text
Tom and Jack are good friends.(Tom 和 Jack 是好朋友。)
```
特殊情况:and 连接的两个词指同一个人或同一个整体,谓语用单数:
```text
The singer and dancer is very famous.
(这位歌手兼舞蹈家很有名。——同一个人 → is)
```
易错点二:时间、金钱、距离作主语用单数
```text
Two hours is enough for the exam.
(两个小时足够考试了。——时间整体 → is)
Ten yuan is not expensive.
(十块钱不贵。——金钱整体 → is)
Five kilometers is a long way.
(五公里是很远的路。——距离整体 → is)
```
口诀:时间、金钱、距离,看作整体用单数。
易错点三:each / every 开头用单数
```text
Each student has a book.(每个学生都有一本书。)
Every boy and girl likes the game.
(每个男孩女孩都喜欢这个游戏。——every 后 and 连接也用单数)
```
易错点四:不定代词作主语用单数
```text
Everyone is here.(所有人都到了。)
Something is wrong with the phone.(手机出问题了。)
```
(详细见「不定代词一张图」一文。)
易错点五:the number of vs a number of
```text
The number of + 复数名词 → 谓语用单数(……的数量)
A number of + 复数名词 → 谓语用复数(许多……)
```
```text
The number of students is 50.(学生人数是 50。——用 is)
A number of students are playing basketball.
(许多学生在打篮球。——用 are)
```
口诀:the number of 看数量(单数),a number of 看学生(复数)。
一张表总结
```text
易错点 规则 例子
and 连接 一般用复数 Tom and Jack are friends.
时间金钱距离 看作整体用单数 Two hours is enough.
each/every 用单数 Each student has a book.
不定代词 用单数 Everyone is here.
the/a number of 前者单数后者复数 The number is / A number are
```
实战练习
```text
- The number of teachers ______ (be) 100.
→ is(数量 → 单数)
- Two days ______ (be) enough.
→ is(时间整体 → 单数)
- A number of cars ______ (be) parked here.
→ are(许多车 → 复数)
```
总结
主谓一致补充考点:
```text
and 连接一般复数,指同一人用单数
时间金钱距离用单数
the number of 用单数,a number of 用复数
```
```text
今日小抄:
Two hours is enough. 时间整体 → is
Each student has a book. each → 单数
The number of students is 50. 数量 → is
A number of students are... 许多 → are
```