Ago 对比 Before

在英语中何时使用每一个，包含含义、语域和例句。

Ago

前 1000（非常常见） A1 adverb

Before

前 1000（非常常见） A1 preposition

	Ago	Before
发音	🇬🇧 /["/əˈɡəʊ/"]/ 🇺🇸 /["/əˈɡəʊ/"]/	🇬🇧 /["/bɪˈfɔː(r)/"]/ 🇺🇸 /["/bɪˈfɔːr/"]/
含义	in the past; before now	At an earlier time than something else.
例句	two weeks/months/years ago	I always wash my hands before dinner.
语域	中性	中性
常见程度	前 1000（非常常见）	前 1000（非常常见）
CEFR 等级	A1	A1
词性	adverb	preposition
搭配	two years ago, just ago, long ago	before dinner, before school, before sunrise
反义	future	after, following
常见错误	Incorrectly using 'ago' with future events., Confusing 'ago' with 'since' when discussing past time., Omitting the time expression, e.g., saying 'I saw him ago.'	Confusing 'before' with 'after'., Using 'before' to refer to an event that can only happen afterwards., Omitting the necessary clause or event after 'before'.
用法说明	Use 'ago' to refer to a specific time in the past. It's typically used in informal and neutral contexts, but avoid using it in very formal writing or speeches.	Used to indicate a time prior to an event or action. Common in both spoken and written language. Avoid using it in extremely formal writing; in that context, consider 'prior to'.

常见问题：Ago 对比 Before

Ago和Before 有什么区别？

Ago: in the past; before now Before: At an earlier time than something else.

Ago和Before 的 CEFR 等级相同吗？

在 CEFR 量表上：Ago: A1, Before: A1。

Ago和Before 是什么词性？

Ago: adverb, Before: preposition.

能各给一个例子吗？

Ago: two weeks/months/years ago Before: I always wash my hands before dinner.

我可以互换使用 Ago和Before 吗？

不总是。Ago和Before 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。