主谓一致 原则:
1.语法一致
We are sleeping . 2.语意一致
My family is big . 3.就近一致
Neither he nor I am a teacher .
1.Many a:许多+ 单数名词 + 单数谓语 Many a student likes pop. music.
2.more than one :不只一个，+单数名词 + 单数谓语 More than one student has been to Beijing.
3.one and a half :一个半 + 复数名词 +单数谓语 One and a half apples was eaten by the boy.
4.a / an + 单数名词 + or two:一两个 + 单数谓语 A student or two has been to Beijing .
5.主语由each /every + 单数名词 and each /every + 单数名词 + 单数谓语 Each boy and each girl has been given a gift .
6.表示时间，价格，重量，数学运算等词或短语作主语，谓语用单数 45 days is too short .
5 kilometers is a little long. 1 and 1 is two.
7.由to do,doing做主语，谓语用单数 Seeing is believing . To see is to believe.
* 8.A,with / together with / as well as / but /except / like beside B 谓语动词与 A一致 The father as well as his children is going to fish this Sunday . Mike,like his brother likes football very much . 9.由and连接两个名词做主语
(1) The singer and lawer is invited to the party.
(2) The singer and the lawer are invited to the party. 10.由集合名词充当主语
(1)police,people ,cattle 谓语必须用复数 The police are looking into the murder. Some people are gathering on the squre.
(2) 由family ,team,class ,crew(船员)等集合名词充当主语，谓语动词采用语意一致。 The team has won the game already . The team are very excited. The class is easy to teach. The class like the she teaches.
11. 由 somebody ,someone ,something 等不定代词作主语，谓语动词用单数 Everything is ready.
12.以s 结尾的一些特定词作主语，谓语用单数 maths,news ,physics
Maths is easy .