Cool MateAlert 对比 That was the signal
在英语中何时使用每一个，包含含义、语域和例句。
Alert
前 1000（非常常见）C1verb
That was the signal
前 2000（常见）
最常见: Alert
| Alert | That was the signal | |
|---|---|---|
| 发音 | 🇬🇧 /["/əˈlɜːt/","/əˈlɜːts/","/əˈlɜːtɪd/","/əˈlɜːtɪŋ/"]/🇺🇸 /["/əˈlɜːrt/","/əˈlɜːrts/","/əˈlɜːrtɪd/","/əˈlɜːrtɪŋ/"]/ | 🇬🇧 //ðæt wəz ðə ˈsɪɡnəl//🇺🇸 //ðæt wəz ðə ˈsɪɡnəl// |
| 含义 | 保持警觉并注意周围事物；快速察觉。Aware and paying attention; quick to notice things. | 信号是做某事的标志。A signal is a sign to do something. |
| 例句 | Neighbours quickly alerted the emergency services. | When the bell rang, that was the signal for everyone to start the exam. |
| 语域 | 中性 | 中性 |
| 常见程度 | 前 1000（非常常见） | 前 2000（常见） |
| CEFR 等级 | C1 | - |
| 词性 | verb | |
| 搭配 | stay alert, alert to danger, make someone alert, be alert for signs | give a signal, receive a signal, clear signal, signal to start, signal for help |
| 反义 | unaware, distracted, sleepy | - |
| 常见错误 | 'Alert' used as a noun instead of an adjective., Confused with 'alarmed', which means frightened., Using 'alerts' incorrectly as a verb form. | Confused with 'sign'. 'Signal' is more specific., Using it in unrelated contexts, like referring to mere events., Overusing in casual conversations, it fits better in descriptive contexts. |
| 用法说明 | 用'警觉'来形容一个人很专注。可以在正式和非正式场合使用，但在非常随意的对话中要避免使用。Use 'alert' to describe someone who is attentive. It can be used in formal and informal contexts, but avoid using it in very casual conversations. | 用于给出提示的语境中。适用于非正式和正式场合。Used in contexts where a cue is given. It is appropriate in both informal and formal settings. |
在真实片段中看它
常见问题：Alert 对比 That was the signal
Alert和That was the signal 有什么区别？
Alert: Aware and paying attention; quick to notice things. That was the signal: A signal is a sign to do something.
哪个更常见：Alert和That was the signal？
Alert 在日常英语中最常见。
能各给一个例子吗？
Alert: Neighbours quickly alerted the emergency services. That was the signal: When the bell rang, that was the signal for everyone to start the exam.
我可以互换使用 Alert和That was the signal 吗？
不总是。Alert和That was the signal 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。