何为主谓一致，这可能是非英语国家的朋友遇到最多的问题之一了。英语中的主谓一致-Subject-Verb Agreement，意指句中的谓语动词和主语在人称和数上保持一致，谓语需要根据主语来确定使用相一致的单数或复数谓语。
大刘从网络上找到了一篇关于主谓一致的10组规则介绍，这里做下知识点分解，希望对大家有所帮助。
RULE 1
The subject and verb must agree in number
句子的主语和动词的数必须一致
例如：
He goes to work by bus.他乘公交车上班
They visit us every other week.他们每隔一周来拜访我们
Rule 2
The workds and phrases "with","as well as","together with","along with" are not part of the subject and the verb agrees with the subject.
“with”、“as”、“with”、“with”、“with”、“with”等词组和短语不属于主语，动词与主语一致
例如：
The politician, along with the newsmen, is expected shortly.这位政治家和新闻机制预计很快就要到了
Rule 3
Two subjects joined by "and" are plural.
由"and"组成的2个主语是复数形式
例如：
Mary and Joan are quite different.
玛丽和琼安完全不同
&特例：当and连接的2个主语为同一概念时，谓语仍然使用单数形式
Bacon and eggs is my favourite dish.培根鸡蛋是我最喜欢的菜
Rule 4
With collective nouns, the verb might be singular or plural (UK), depending on meaning.
对于集合名词，动词可以是单数或复数（uk），这取决于句意
例如：
The audience was clearly enchanted by her performance.观众显然被她的表演迷住了
The audience are strangely subdued, clapping politely after each song.观众们出奇地安静，只是在每首歌结束后报以礼貌性的掌声
Rule 5
2 subject joined by "or/not" "either...or/neither...nor","not only...but also" take the verb that agrees with the subject closest to it.
主语由“or/not”“either……or/neither……nor”“not only……but also”连接，动词与最接近主语的主语一致
例如：
Neither my mother nor my father goes to university.我的母亲和父亲都没有上过大学
Rule 6
In sentences beginning with "here" or "there", the true subject follows the verb.
在以“here”或“there”开头的句子中，真正的主语跟在动词后面(以谓语动词后的主语为准)
例如：
There is a bush near the school playground.学校操场附近有一片灌木丛
Rule 7
The verb is singular if the subject is singular indefinite pronoun such as each, either, no one, every one, etc
如果主语是单数不定代词，如each, either, no one, every one等，则谓语动词也为单数形式
例如：
Nobody gets rich from writing nowadays.如今没有人能够靠写作致富
The verb is plural if the subject is a plural indefinite pronoun such as several, few, both, many.
如果主语是复数不定代词，如several, few, both, many，则谓语动词也为复数形式
例如：
Several villages have been isolated by the heavy snowfall.好几个村庄因为大雪与外界隔绝
Some indefinite pronouns are may be singular or plural, depending on their use in sentence.
有些不定代词可以是单数或复数，这取决于它们在句子中的用法
例如：
Some of the books are out of place. Please put them in the right order. (Books are countable)有一些书没有放到位置上，请按照正确的顺序摆放。（Books为可数名词）
Some of the music was weird. (Muisic is uncountable)有些音乐很奇怪。（Music为不可数名词）
Rule 8
Use a singular verb for expressions of measurement, time, money and weight when the amount is considered one unit.
当主语被认为表述一个单位时，使用单数动词来表示度量、时间、金钱和重量
例如：
Fifty dollars seems a reasonable price.5美元看上去是一个合理的价位
Five dollars were scattered on the ground.地上散落着5美元(钱有多张)
Rule 9
Plural form subjects with a singular meaning take a singular verb such as mumps, measles, calisthenics, statistics, civics, etc...
具有单数意义的复数形式主语采用单数动词，如腮腺炎、麻疹、健美操、统计学、公民学等
例如：
Gymnastics is his favourite sport.体操是他最喜欢的运动
Rule 10
Titles of single entities (books, organizations, countries, etc.) are always singular.
单个实体（书籍、组织、国家等）的标题总是单一的
例如：
Harry Potter is an interesting novel.《哈利波特》是一本非常有趣的小说
OK，今天的内容有点多，敲得我手指都有点疼了，希望大家收藏后慢慢查看相关知识点，明天见！
