定义 / 说明
我们用 Can you...? 和 Could you...? 来请别人做事。两种都常见，但 could 通常更委婉、更礼貌。这些结构在日常对话、工作、商店和课堂中都很实用。can/could 后的动词要用原形。我们也常加 please 或 for me 让请求更自然。
关键规则
- Can you...? 可用于直接但礼貌的请求。
- Could you...? 语气更柔和、更礼貌。
- 主句动词保持原形：Can you help me?
- 想更礼貌时可加 please。
- 常见回答：Sure, Of course, Sorry, I can't, No problem。
例句
- Could you open the door? - 你能把门打开吗？
- Can you repeat that? - 你能重复一遍吗？
- Could you help me with this bag? - 你能帮我拿这个包吗？
- Can you wait a minute, please? - 请你等一分钟，可以吗？
- Could you speak more slowly? - 你能说慢一点吗？
常见错误
- ❌ Could you to open the door? -> ✅ Could you open the door?
- ❌ Can you repeats that? -> ✅ Can you repeat that?
- ❌ Could open you the window? -> ✅ Could you open the window?