Cool MateCannot 对比 Impossible 对比 Unable
在英语中何时使用每一个，包含含义、语域和例句。
Cannot
前 1000（非常常见）A1
Impossible
前 1000（非常常见）A2
Unable
前 2000（常见）B1adjective
| Cannot | Impossible | Unable | |
|---|---|---|---|
| 发音 | 🇬🇧 /["/ˈkænɒt/"]/🇺🇸 /["/ˈkænɑːt/"]/ | 🇬🇧 /["/ɪmˈpɒsəbl/"]/🇺🇸 /["/ɪmˈpɑːsəbl/"]/ | 🇬🇧 /["/ʌnˈeɪbl/"]/🇺🇸 /["/ʌnˈeɪbl/"]/ |
| 含义 | to be unable to do something | Not able to happen or be done. | not able to do something |
| 例句 | I cannot believe the price of the tickets! | Climbing that mountain seems impossible without proper training. | I was unable to attend the meeting due to a family emergency. |
| 语域 | 中性 | 中性 | 中性 |
| 常见程度 | 前 1000（非常常见） | 前 1000（非常常见） | 前 2000（常见） |
| CEFR 等级 | A1 | A2 | B1 |
| 词性 | adjective | ||
| 搭配 | cannot believe, cannot wait, cannot afford | appear, be, look, absolutely, completely, downright, for, be, become, find somebody, really, absolutely, completely | appear, be, feel, completely, quite, totally, unwilling or unable |
| 反义 | can, able | possible, feasible, achievable | able, capable |
| 常见错误 | Confused with 'can not' — it's always one word in negative form., Using 'cannot' in too formal a context — prefer 'can't' in casual speech., Incorrectly using 'cannot' in past tense situations. | 'Impossible' is sometimes confused with 'unbelievable' but they are not the same., Learners might use 'impossible' to describe very challenging tasks instead of things that cannot be done at all., 'Impossible' is often incorrectly combined with less strong modifiers, like 'very impossible'. | Confused with 'unable to' and 'not able to' — they mean the same but usage can vary., Using 'unable' without a following action verb., Misplacing adjectives — remember 'unable' always describes capability. |
| 用法说明 | Use 'cannot' in any situation where something is impossible. Avoid using it in informal contexts where 'can't' is more common. | Use 'impossible' to describe something that cannot be achieved. It’s suitable for both spoken and written English but may be too strong in polite contexts. | Use 'unable' in situations where someone or something lacks the ability to perform an action. It's appropriate in both spoken and written contexts, but avoid in very casual conversations. |
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常见问题：Cannot 对比 Impossible 对比 Unable
Cannot、Impossible和Unable 有什么区别？
Cannot: to be unable to do something Impossible: Not able to happen or be done. Unable: not able to do something
哪个更高级：Cannot、Impossible和Unable？
Unable 级别最高，在 CEFR 量表上为 B1。
Cannot、Impossible和Unable 的 CEFR 等级相同吗？
在 CEFR 量表上：Cannot: A1, Impossible: A2, Unable: B1。
能各给一个例子吗？
Cannot: I cannot believe the price of the tickets! Impossible: Climbing that mountain seems impossible without proper training. Unable: I was unable to attend the meeting due to a family emergency.
我可以互换使用 Cannot、Impossible和Unable 吗？
不总是。Cannot、Impossible和Unable 相关，有时可以互换，但在语域、常见程度和用法上不同，所以换用可能改变意思或语气。替换前先看看上面的区别。