【主谓一致】是英语语法中的一个重要概念，它规定了主语和谓语在人称和数上的一致性。在英语句子中，主语和谓语动词必须在单复数形式上保持一致，这涉及到不同的语法规则。下面我们将通过分析题目中的例子来深入理解这一知识点。
1. 当主语是each of + 名词复数或"the/this/that+单数名词"时，谓语动词通常用单数形式，如：Each of us has a life goal.
2. "A lot of + 不可数名词"作主语时，谓语动词用单数，如：A lot of useful advice was offered.
3. 百分数或部分与of短语连用，表示整体时，若指人，谓语动词用复数；若指物，谓语动词用单数。例如："Eighty percent of the students exercise three to five times a week."
4. "Either...or..."、"Neither...nor..."连接两个主语时，遵循“就近原则”，谓语动词与靠近的主语保持一致。例如："Either the students or the teacher knows him very well."
5. "There be"句型中，be动词的单复数由紧跟其后的名词决定。如："There is a teacher and some students playing soccer."
6. "Together with/to+名词"结构作主语时，谓语动词与主要主语保持一致。如："Mr Wang enjoys living in the countryside."
7. "Neither...nor..."连接两个主语，谓语动词用单数，如："Neither my sister nor I have ever been to Xi'an."
8. "Not only...but also..."连接两个主语，谓语动词与靠近的主语一致。如："Not only Jack but also I am crazy about the football match."
9. 动名词作主语时，谓语动词用单数，如："Playing computer games too often is bad for us."
10. "Both...and..."连接两个主语，谓语动词用复数，如："Both Mike and I are ready for the new high school life."
11. "A number of + 名词复数"作主语时，谓语动词用复数；"the number of + 名词复数"作主语时，谓语动词用单数。例如："In our school library, there are a number of books, and the number of them is growing."
12. "Everyone/Everybody/Everybody + except + 复数名词"作主语时，谓语动词用单数，如："Everyone except Tom and Mary has been to Beijing."
13. "The family"作为家庭整体概念时，谓语动词用单数，如："The family gets together to have a big dinner."
14. "One of + 名词复数"作主语时，谓语动词用单数，如："One of my friends has moved to America."
15. "The sick"指代"病人"这一类人时，谓语动词用复数，如："The sick have been sent to the hospital."
在填写括号内的单词时，要注意时态和语态的正确运用。例如：
1. arrive的完成时态为"has arrived"，表示"一到达就…"。
2. "The best things"是复数形式，因此谓语动词用复数的are，表示"最好的东西是免费的"。
3. "There be"句型中，"many things"是复数，故用are，表示"旅行中有许多享受的事情"。
通过以上分析，我们可以看出，主谓一致是英语语法中的核心概念，理解并掌握这一规则对于正确构建英语句子至关重要。在实际应用中，要灵活运用各种原则，包括单数主语、复数主语、含并列主语的句子以及涉及不定代词、动名词等特殊情况的句子。
