1、主语与谓语的一致英语语法要求，主语如果是单数，谓语动词也要用单数形式;主语若是复数，谓语动词也要用复数形式例如:She like/likes to eat well.We all like/likes good food.注意：1. And连接的两个或多个单数名词作主语时，谓语动词用复数形式His opinion and mine are different. Bob and Peter are deadly rivals. What she says and what she does are totally different.但是如果and连接的是指一个单一
2、概念时，谓语动词用单数。Bread and milk has been my breakfast for years. Her lawyer and old friend is going to marry her.All this effort and sacrifice has come to nothing.由and连接的单数主语有many a，every，each，no修饰时，动词用单数。During the holidays, every train and every plane was crowded. No boy and no girl has
3、the right to refuse education. Man a man and man a woman was moved b this picture。2. 如果主语是一个抽象概念(如不定式、动名词、主语从句等)谓语动词用单数形式。如果主语是用and连接的两个或多个抽象概念，谓语动词用复数形式。Swimming jogging and cycling are all goad farms of sports exercises. To live to eat is not a very goad attitude toward life. To liv
4、e to eat and to eat to live are very different attitudes toward life.以what，who，why，haw, whether等wh一词引起的从句做主语时，谓语动词通常用单数;由and连接的两个主句如果指两件事，动词用复数。What he is doing is not clear yetWhat he is doing and whether I know him are two different things. What she told me is none of your business.
5、 What she told me and what she told you are totally different things.以what从句为主语的“主一系一表"句型中，如果主句的表语是复数，主句谓语动词用复数形式; what从句本身是复数意义，主句谓语动词也可用复数。What I need buy now are four tea cups and a pair of sports shoes.What were thought to be five dogs were actually five sheep. 3. 集体名词family，class
6、，crew(全体船员或机组人员)，crowd, group, committee, audience, government, public, team, staff, population等做主语时，若作为一个整体看待，后面谓语动词用单数; 如就其中每一个成员来考虑时，则用复数。 My family is a big one.我家人多。My family are all music lovers. Eighty percent of China' s population are peasants. China has a huge population. T
7、he population of China is the largest in the world. People, police, cattle(牛)，militia(民兵)，poultry(家禽)，vermin(害虫)等作主语时，后面的动词要用复数。如：There were many people waiting outside. The police are searching far the murderer. The cattle are grazing in the fields. Foliage(树叶)，machinery(机械)，equipmen
