【do与does的用法区别】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。虽然它们的用法相似,但在使用时需要根据主语的人称和数进行选择。以下是关于“do”和“does”的用法区别的详细总结。
一、基本用法区别
| 用法 | do | does |
| 主语 | I, you, we, they(第一人称复数、第二人称、第三人称复数) | he, she, it(第三人称单数) |
| 一般疑问句 | Do you like apples? | Does she like apples? |
| 否定句 | I don't like apples. | She doesn't like apples. |
| 强调句 | I do like apples. | She does like apples. |
二、具体用法说明
1. 一般疑问句
在问句中,当主语是第一人称(I)、第二人称(you)、或第三人称复数(we, they)时,使用“do”。
- Do you understand?
- Do they have a car?
当主语是第三人称单数(he, she, it)时,使用“does”。
- Does he work here?
- Does it rain often?
2. 否定句
在否定句中,同样根据主语选择“do”或“does”,并在其后加“not”。
- I don't like coffee.
- She doesn't go to school on weekends.
3. 强调句
在强调某个动作或状态时,使用“do”或“does”来加强语气。
- I do want to go.
- He does know the answer.
4. 动词原形
“Do”和“does”后面必须接动词原形,不能加“-s”或“-ed”等变化形式。
- Do you eat breakfast?
- Does she play football?
三、常见错误提示
- 错误:Does he likes coffee?
正确:Does he like coffee?
- 错误:Do she like music?
正确:Does she like music?
- 错误:We don't goes to the park.
正确:We don't go to the park.
四、总结
“Do”和“does”是英语中用于构成疑问句和否定句的重要助动词。它们的使用取决于主语的人称和数。掌握好它们的用法,有助于提高英语表达的准确性。通过反复练习和实际应用,可以更好地理解和运用这两个助动词。


