新概念第二册一课一练解析第12课（步步跟新概念2册第73课）
新概念第二册一课一练解析第12课（步步跟新概念2册第73课）（2）如果连接两个以上的名词指的是同一个人或物 或者指同一概念的时候 谓语要用单数。他和她都是这个学校的学生。<and连接>两个或两个以上单数名词或者代词作主语的时候 谓语动词有以下两种情况：（1） 如果指两个或两个以上不同的人或事物的时候 谓语动词用复数。He and she are both students of this school.
每日一讲
步步跟“每日一讲” 针对新概念、中考的课文进行重点剖析，针对听力、词汇、语法进行梳理和讲解，讲堂每天都会和大家在一起分享英语知识哟，大家不见不散~
所谓主谓一致是指“主语和谓语动词”之间 即主语的人称和单复数形式决定着谓语动词对应的形式。
2.主谓一致的种类
2.1 语法一致
<and连接>两个或两个以上单数名词或者代词作主语的时候 谓语动词有以下两种情况：
（1） 如果指两个或两个以上不同的人或事物的时候 谓语动词用复数。
He and she are both students of this school.
他和她都是这个学校的学生。
（2）如果连接两个以上的名词指的是同一个人或物 或者指同一概念的时候 谓语要用单数。
The singer and dancer is going to give us a performance.
那个歌唱家兼舞蹈演员要给我们表演。
如果主语是<不定式 动词ing形式或主语从句>的时候 谓语动词一般用单数。
When he is coming seems very important.
他什么时候要来看起来很重要。
Collecting stamps is his hobby.
收集邮票是他的爱好。
定语从句的<关系代词who which that>在从句中作主语时，要与<先行词>的人称和数保持一致。
Tom who is your friend should help you.
汤姆，你的朋友，应该帮助你。
with along with together with as well as besides like without except but including 如果句子中有这些连接词和主语连用 谓语动词的数<随主语的变化>而变化。
例如：
The teacher together with his students is planting trees in the street.
老师和他的学生们正在街道上植树。
2.2 意义一致
指主谓一致取决于主语的其实际意义。（有的主语名词在形式上是单数 但在意义上却是复数；有的主语名词在形式上是复数 但在意义上却是单数。）
2.3 就近原则
3.优选试题
1.The manager or his assistant __ going to attend the meeting.
A. were B. are C. is D. has
2. Two weeks __ enough for us to finish the task.
A.has B. are C.is D.were
3. Her politics __ neither conservative nor liberal.
A.are B. has been C. was D. is
4.A round and a square table __ in the shop window.
A. was exhibiting B. was exhibited C. were exhibiting D.were exhibited
5.When he got to the fair what were left behind __ ten empty bottles.
A. was B. were C.just D.only
6.There is always a possibility that the infection will return but so far there __ been no signs of trouble.
A. has B.have C.are D. had
7. George is the only one of the brightest students who __ from New York University.
A.is graduated B.have graduated C.has graduated D. are graduated
8. Hard work and plain living _ characteristics of the working class.
A. were B. is C. has been D.are
9.Although the first part of the book is easy the rest __ .
A. are difficult B. has proved difficult C. is supposed difficult D. have been found difficult
10. Every policeman and fireman __ on the alert.
A. was B. were C. have been D. are
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