【do与does的区别和用法有哪些】在英语学习中，“do”和“does”是两个非常常见的助动词，它们在句子中起着重要的作用。虽然它们都表示“做”，但使用时有明显的区别。了解它们的用法有助于我们更准确地表达意思。
一、基本区别
| 项目 | do | does |
| 人称 | I, you, we, they | he, she, it |
| 时态 | 一般现在时（用于复数或第一/第二人称） | 一般现在时（用于第三人称单数） |
| 功能 | 构成疑问句、否定句、强调句等 | 同上 |
二、具体用法说明
1. 用于构成一般现在时的疑问句
- do：用于 I, you, we, they
- Do you like coffee?
- Do they go to school by bus?
- does：用于 he, she, it
- Does he play football?
- Does it rain a lot here?
2. 用于构成否定句
- do not / don't：用于 I, you, we, they
- I don't like apples.
- We don't have time.
- does not / doesn't：用于 he, she, it
- She doesn't like chocolate.
- It doesn't work.
3. 强调句型
- do / does + 动词原形：用于强调动作的发生
- I do love you.
- He does know the answer.
4. 在祈使句中不使用 do 或 does
- Go and get it!
- Don’t touch that!
5. 与情态动词连用时不用 do 或 does
- I can help you.
- She should study harder.
三、常见错误对比
| 正确 | 错误 |
| Do you want to eat? | Does you want to eat? |
| She does not like math. | She don't like math. |
| They do not go there. | They doesn't go there. |
四、总结
“do”和“does”都是用来构成一般现在时的助动词，主要区别在于主语的人称和数：
- do 用于 I, you, we, they（复数或第一/第二人称）
- does 用于 he, she, it（第三人称单数）
掌握这两个词的正确用法，能帮助我们在日常交流中更自然、准确地表达自己的意思。建议多通过例句练习，加深理解和记忆。