主谓一致
【要点提示】
所谓主谓一致,主要是指主语和谓语动词在“ ( http: / / www.21cnjy.com )人称”和“数”上的一致,其基本原则有三个:语法一致原则、意义一致原则和邻近原则。下面就初中阶段需要掌握的重点内容作一归纳。
1. 主语是单数,即使后面跟with, except, as well as等引导的短语,谓语动词仍用单数形式。例如:
Mr Green with two students is standing outside the classroom.
2. each以及由every, some, any, no等构成的不定代词在句中作主语时,谓语动词通常用单数形式。例如:
Each of the children has an apple.
Everything begins to grow fast in spring.
3. 动词不定式(短语)、v-ing形式(短语)等在句中作主语时,谓语动词常用单数形式。例如:
To do is much more difficult than to say.
Climbing hills is his hobby.
4. 表示时间、金钱、长度等的短语作主语表示整体时,谓语动词常用单数形式。例如:
Three years has already passed.
5. “one of + 复数名词 / 代词”作主语时,谓语动词用单数形式。例如:
One of the students was hurt in the accident.
6. family, class, pol ( http: / / www.21cnjy.com )ice等集体名词作主语表示整体概念时,谓语动词用单数形式;若表示具体成员时,谓语动词用复数形式。例如:
His family is moving next month.
His family enjoy watching the football match.
★但是people一词在表示“人”时,总是表示复数意义,谓语动词用复数形式。例如:
Look! Three American people are playing with the dog.
7. 由and连接两个名词作主语时,谓语动词通常用复数形式;但如果表示的是一种事物或一个概念时,谓语动词则用单数形式。例如:
His mother and his sister are good at dancing.
The teacher and writer is the twins’ father.
8. “some / all / half ( http: / / www.21cnjy.com ) / most / the rest / 分数等 + of + 名词 / 代词”作主语时,谓语动词的单、复数形式取决于of 后的名词或代词的数。例如:
Half of the milk was polluted.
The rest of the doctors are all from Canada.
9. what, who ( http: / / www.21cnjy.com )等疑问代词作主语时,谓语动词通常用单数形式。但是,如果说话人确信回答中要用复数主语(尤其是问句中的某些词语表明答句中要用复数主语时),则可用动词的复数形式。例如:
What’s in the box
Who have not received their postcards
10. “... pair(s) / kind(s) / sort(s)等 + of + 名词”作主语时,谓语动词常与pair(s) / kind(s) / sort(s)等保持一致。例如:
This kind of book is interesting.
These kinds of books are sold well.
11. “none / neither / either + of + 复数名词 / 代词”作主语时,谓语动词用单、复数形式均可。例如:
Neither of them are / is welcome.
12. either ... or ... / neither ... nor ... / ... or ... / not only ... but also ...等连接并列主语时,谓语动词一般和与之靠近的主语在人称和数上保持一致,即采用邻近原则。there be句型中的谓语动词的数也常采用该原则。例如:
Either you or he has to stay at home.
Has Lucy or you called me
★但是both ... and ...连接并列主语时,谓语动词用复数形式。例如:
Both he and she are good at English.
【专项练习】
Ⅰ. 请从各题后所给的A、B、C、D四个选项中选出最佳答案。
( )1. —Do you live alone, Mr Chen
—Yes, __________ of my children lives with me.
A. neither B. both C. all D. nothing
( )2. To me, fifty yuan __________ enough.
A. have B. has C. is D. are
( )3. Two thirds ( http: / / www.21cnjy.com ) of the birds in the forest __________ killed by people last year.
A. were B. was
C. has been D. had been
( )4. Tom with other boys __________ to watch the game.
A. want B. wants
C. had wanted D. have wanted
( )5. Doing eye exercises every day __________ good for your eyes.
A. are B. is C. has D. have
( )6. His family __________ all very kind and friendly.
His family__________ a happy one.
A. are; is B. is; is C. are; are D. is; are
( )7. One of the books __________ written by a policeman.
A. was B. are
C. were D. be
( )8. Either you or he __________ the chance to drive to Beijing.
A. is B. are C. have D. has
( ) 9. — __________ this pair of shoes your father’s
—No. They __________ my brother’s.
A. Are; is B. Are; are
C. Is; are D. Is; is
( )10. —__________ someone coming this evening
—I’m not sure.
A. Was B. Is C. Are D. Were
Ⅱ. 下列各句带下划线部分中有一处错误,请找出并改正。
1. The number of the students are 50. ________________
2. Physics seem easy for him. ________________
3. Are there anything interesting in today’s newspaper ______________
4. Most of the water are clean in the countryside. _________________
5. Both Tom and I was students at that time. _____________________
参考答案
主谓一致专项练习
Ⅰ. 1-5 ACABB 6-10 AADCB
Ⅱ. 1. are→is 2. seem→seems 3. Are→Is 4. are→is
5. was→were