内容正文:
主谓一致
1. 意义一致
意义一致:即谓语动词用单数还是复数形式要看主语所表达的概念。
(1)the+形容词表示一类人时,谓语动词用复数形式,表示抽象概念时,用单数形式。
e.g. The poor are very happy, but the rich are sad.
The beautiful lives forever.
(2)表示时间,价格,重量,数目,长度,数学运算等词或短语作主语时,这些通常作一个整体概念,谓语用单数形式;另外,加减乘除也常当作整体对待,谓语动词用单数形式。
e.g. Three months is a long holiday.
Thirty pounds isn't so heavy.
Five minus two is three.
(3) 带有量词的主语与谓语的一致
① kind / type of+名词, 结构后的谓语单复数形式由 kind, type单复数决定谓语动词的形式。
e.g. Some new types of buses are now on show.
There are three kinds of computers.
② Half/ the rest of+名词,谓语动词的数视名词而定。
e.g. Half of this building is to be completed by autumn.
Half of the buildings in our school are of red-brick construction.
③ a number of+复数名词,表示“大量的”,谓语用复数;the number of+复数名词,表示“……的数量”,谓语用单数。
e.g. There are a number of students in the classroom and the number of them is more than 80.
2. 语法一致
语法一致:指谓语动词和主语单、复数形式上保持一致。
(1)主语是可数名词单数或不可数名词时谓语动词用单数主语为复数时,谓语动词用复数形式。
e.g. A long stream runs between the two hills.
(2)当and连接两个词作主语时,谓语动词一般用复数。
注意:
① 若and所连接的两个词指的是同一个人或物(成套的物),或同一个概念时,它后面的谓语动词应用单数形式。
e.g. A knife and fork is on the table.
② 由and连接的并列单数主语前如果分别有no,each,every或more than a(an)/one,many a(an)修饰时,其谓语动词要用单数形式。
e.g. Every boy and every girl likes to go swimming.
(3)主语为单数名词或代词,尽管后面跟有:with, together with, except, but, like, as well as, no less than, rather than, besides, along with, including, in addition to等短语,谓语动词仍用单数形式;若主语为复数,谓语动词用复数形式。即“就远原则”。
e.g. Your father as well as you is very kind to me.
(4)“either, neither, each, every或no+单数名词”和由some, any, no, every构成的复合不定代词作主语时,谓语用单数;
e.g. Something is wrong with your bike.
(5) 如果集合名词指的是整个集体,谓语动词用单数形式;如果它指的是集体的成员,谓语动词用复数形式。people, police, cattle,militia, poultry等名词多用作复数;
e.g.The police are searching for the lost child.
My family isn't large.
My family are all interested in collecting stamps.
(6)由 “a lot of/lots of/plenty of/the rest of等+名词” 构成的短语以及
由“分数或百分数+名词”构成的短语作主语时,谓语动词的数要根据短语中后面的名词数而定。
e.g. Three quarters of the surface of the earth is water.
(7) 以s结尾,但表示单数概念的名词:一些表示学科名称的名词,如:news, mathema