主语数量与谓语时态匹配规则倒装句名词从句中的匹配
英语中，主语与谓语的匹配规则对于构建正确和流畅的句子至关重要。以下是关于主语与谓语匹配的一些基本规则：
1. 主谓一致原则
主语与谓语在数（单数或复数）和人称（第一人称、第二人称、第三人称）上必须一致。例如：
* 单数主语通常与单数谓语匹配：She is beautiful.
* 复数主语通常与复数谓语匹配：They are smart.

2. 时态匹配规则
主语与谓语在时态上也必须匹配。主语的状态或行为发生在何时，谓语也应使用相应的时态。例如：
* 一般现在时：I like reading books.
* 一般过去时：I liked playing football when I was young.
抗遗忘英语单词速记
随时随地背单词
不知不觉背单词
单词不用记

3. 主语数量与谓语
当主语由多个名词构成时，谓语的单复数取决于主语的整体数量。例如：
* 复数主语：Tom and Jerry are always playing tricks.
* 单数主语（看作一个整体）：The United States is a country of diversity.

4. 动词形式与主语
根据主语的不同，动词形式可能需要调整。例如：
* 第三人称单数主语：He has a cat.
* 非第三人称单数主语：We have two cats.

5. 倒装句中的匹配
在倒装句中，虽然单词的顺序改变了，但主语与谓语的匹配规则仍然适用。例如：
* 正常语序：She is happy.
* 倒装语序：Happy is she.

6. 代词主语的匹配
代词作为主语时，应与相应的谓语匹配。例如：
* He wants to go home.
* They don't know what to do.

7. 非谓语动词匹配
非谓语动词（如动名词、不定式、分词）作为主语时，谓语通常使用单数形式。例如：
* Reading is my hobby.
* To travel is my dream.

8. 名词从句中的匹配
在名词从句中，主语与谓语的匹配规则同样适用。例如：
* What is the matter?
* Who are you talking to?

改正错误
1. Each of the students are very excited about the field trip.
2. The United States is a country which has many states.
3. Everyone of us has a dream.
4. The number of books in the library are over 5,000.
5. Neither of the twins is going to the party tonight.
答案
1. 改正：Each of the students is very excited about the field trip.
解析：each of后面的名词应该用单数谓语。
2. 改正：The United States is a country that has many states.
解析：定语从句中，“has”应改为“have”，因为“states”是复数。
3. 改正：Everyone of us has a dream.
解析：正确表达应为“Each of us has a dream.”或者“We all have a dream.”。
4. 改正：The number of books in the library is over 5,000.
解析：“number”是单数，所以谓语应该用单数形式“is”。
5. 改正：Neither of the twins is going to the party tonight.
解析：句子已经是正确的。

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