主谓一致
【主谓一致】
语法一致原则语法一致是指句子的主语和谓语通常在语法形式上保持一致。

即主语是单数形式时，谓语动词用单数形式；主语是复数形式时，谓语动词用复数形式。

注意：由and连接的并列主语如果是指同一概念(即and后面无冠词),则谓语动词用单数形式。

如：The writer and professor is very popular in our school.这位作家兼教授在我们学校很受欢迎。

【考点训练1】
1.The book ___________ (describe) how tea plants ______ (was) grown and used to make tea.
2.One of the world’s most dangerous sports _____ (be) mountain climbing.
3.Jim together with his parents ____ (be) going to travel next week.
4.Both Tom and Peter ______ (like) playing ping-pong.
5.If a shark doesn’t have a fin,it can no longer swim and slowly ______ (die).
6.The mayor(市长) as well as volunteer workers ____ the newly-built stadium. （）
A.were cleaning
B.are cleaning
C.is cleaning
D.have cleaned
7.About 60 percent of the students ___ from the south;the rest of them ___ from the north
and foreign countries. （）
A.are;is
B.is;is
C.is;are
D.are;are
答案：describes were is is like dies C D
意义一致原则
意义一致又叫概念一致，即谓语动词用单数形式还是复数形式要看主语表达的概念。

politics，physics，works，
the United States，news,maths 等词
作主语时,虽以s结尾,但表示单数意义,
谓语动词用单数形式。

【考点训练2】
用is,are填空。

1.Twenty dollars ____ enough to buy that T-shirt.
2.Look! The police ____ carrying the food onto the bank of the river.
3.Maths ____ the language of science.
4.This pair of glasses _____ mine.
5.The injured in the tsunami（海啸）_____ good care of by some medical teams. （）
A.is taken
B.are being taken
C.are taking
D.is being taken
答案：is are is is B
就近一致原则
有时谓语动词的形式与主语并不一致,而是与最靠近它的名词或代词一致,这种原则叫“就近一致”原则。