简介
“Do” 是英语中最基础也最重要的动词之一。它既可以作为实义动词（表示“做”），也可以作为助动词用于构成疑问句、否定句或强调句。 它的不同形式 —— do、does、did 和 done —— 分别用于不同时态和语境。
基本形式与用法
1. Do
用于一般现在时，主语为 I / you / we / they 或复数名词。
I do my homework every day.
They do not like coffee. (否定)
Do you speak English? (疑问)
2. Does
用于一般现在时，主语为 he / she / it 或单数名词。
She does yoga in the morning.
He does not eat meat.
Does it work?
3. Did
用于一般过去时，适用于所有人称。
We did our best yesterday.
Did you call him?
She didn’t know the answer.
4. Done
是 “do” 的过去分词，用于完成时态或被动语态，必须与助动词（have/has/had/be）连用。
I have done my homework. (现在完成时)
The work was done by noon. (被动语态)
Had you done it before? (过去完成时)
常见错误提醒
- ❌ “I did my homework yesterday.” → ✅ 正确（一般过去时）
- ❌ “I have did my homework.” → ✅ 应为 “I have done my homework.”
- ❌ “She do her chores.” → ✅ 应为 “She does her chores.”
小测验
选择正确的形式填空：
- She ______ her homework every night.
- They ______ not understand the question.
- I ______ it yesterday.
- We have already ______ the project.