文档介绍：M3U3 Grammar
Subject-verb agreement
(主谓一致)
Useful structures
语法详解:
主谓一致:谓语动词要和主语的人称和单复数形式保持一致。
Bob
Bob _____ a worker.
is
Mike
Mike and Bob _____ workers.
are
Both Mike and Bob ____
workers.
are
Neither Mike nor Bob ___a teacher.
is
Bill
Neither of them ___________
(know) how to teach English.
knows/know
All of them ______ workers.
None of them ___________
(know) how to teach English.
are
knows/know
主谓一致主要有以下几种情况:
1. and连接两个或两个以上单数名词或者代词作主语时,谓语动词有以下两种情况:
(1) He and she _____both students of this school. 他和她都是这个学校的学生。
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____。
一、语法一致原则
are
复数
(2) 但如果连接两个以上的名词指的是同一个人或物, 或同一概念的时候, 谓语要用单数。
The singer and dancer____ going to give us a performance.
那个歌唱家兼舞蹈演员要给我们表演。
The knife and fork ____on the table.
刀叉在桌子上。
is
is
、不定式、主语从句作主语的主谓一致
When he ing 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。
To love her is not to break her wings.
爱她就不该折断她自由飞翔的翅膀。
1)不定式、动词的-ing 形式作主语时,谓语动词用单数形式。
(2) 由what引导的主语从句,应根据意义一致原则来决定谓语动词的单复数。例如:
What they need is more money to build a new teaching building.
What they need are some actresses.
(3)由连词and 连接的多个非谓语动词作主语时
①如果表达同一概念,谓语动词用单数形式;
To go to bed early and to rise early is a good habit.
②如果表达不同的概念,谓语动词用复数形式。
To live and to work are different things.
这样考过
⑭(2008·宁夏一中)What the remote areas need ________ education to children and what the children need ________ good textbooks at the moment.
; are ; is
; were ; was
解析:以what引导的主语从句谓语动词通常用单数,如果其后的表语是复数也可以用复数;如果what从句是带有复数意义的并列结构,主句的谓语动词用复数。
答案:A
3. 定语从句的关系代词who, which, that作主语时,谓语动词与先行词单复数保持一致。
Those who enjoy singing may join us.
Tom, who is your friend, should help you.
⑯(2007·合肥)Many standardized tests in our life turned out to be simple,________beyond expectations.
was are
were is
解析:考查定语从句和主谓一致。这里用 which 引导非限制性定语从句,连词指代主句内容,表示单数含义,因此选A。
答案:A