【does和do的用法简述】在英语语法中，“do”和“does”是两个非常常见的助动词，主要用于构成疑问句、否定句以及强调句等结构。它们的使用取决于主语的人称和数。以下是对“do”和“does”的用法进行简要总结，并通过表格形式清晰展示。
一、基本用法总结
1. do 用于第一人称（I）、第二人称（you）和复数形式（we, they）。
2. does 用于第三人称单数（he, she, it）。
3. 在一般现在时中，当句子为疑问句或否定句时，需要使用“do”或“does”来帮助构成句子。
4. “do”和“does”后面接动词原形。
二、用法对比表
| 主语 | 助动词 | 例句（肯定） | 例句（否定） | 例句（疑问） |
| I | do | I like apples. | I don't like apples. | Do you like apples? |
| You | do | You study English. | You don't study English. | Do you study English? |
| We | do | We go to school. | We don't go to school. | Do we go to school? |
| They | do | They play football. | They don't play football. | Do they play football? |
| He | does | He likes music. | He doesn't like music. | Does he like music? |
| She | does | She reads books. | She doesn't read books. | Does she read books? |
| It | does | It works well. | It doesn't work well. | Does it work well? |
三、常见用法说明
- 疑问句：将“do”或“does”放在主语前面。
- 例：Do you like coffee?
- 例：Does she have a car?
- 否定句：在“do”或“does”后加“not”。
- 例：I don't like chocolate.
- 例：He doesn't go to the park.
- 强调句：有时用于加强语气，表达确认或惊讶。
- 例：I do love this movie!
- 例：She does know the answer!
四、注意事项
- 当主语是第三人称单数时，必须使用“does”，不能使用“do”。
- “do”和“does”不能单独使用，必须与动词原形连用。
- 在口语中，有时会省略“do”或“does”，但正式写作中应保留。
通过以上总结和表格对比，可以更清晰地理解“do”和“does”的不同用法。掌握这两个助动词的正确使用，有助于提高英语表达的准确性和自然度。