英语介词是让我们英语学习者感觉最为头疼的部分，虽然介词本身都非常简单易学，我们很容易就能够记住介词的读音和拼写，但是介词的用法却非常复杂，不易掌握，每个介词都有不同的用法，用于修饰时间、地点，方向等或者与不同的动词、名词搭配表达不同的含义，瀚森教育英语名师根据多年教学经验，为大家全面解析介词After的用法，介词after主要用于表示在某日或某事之后，或追随某人之后，以...为目标等，具体用法如下：
1. PREP If something happens after a particular date or event, it happens during the period of time that follows that date or event. 在 (某日、某事件) 以后
（1) After May 19, strikes were occurring on a daily basis. 在5月19日以后，罢工每天都在发生。
（2) After breakfast Amy took a taxi to the station. 早饭以后，埃米乘出租车去了车站。
2. CONJ After is also a conjunction. (某事) 以后
例：After Don told me this, he spoke of his mother. 唐告诉我这件事以后，他谈到了他的母亲。
3. PREP If you do one thing after doing another, you do it during the period of time that follows the other thing. 在 (做某事) 以后 [PREP -ing]
例：After completing and signing it, please return the form to us in the envelope provided.
填完并且签名以后，请将表格装入所提供的信封中返还给我们。
4. PREP You use after when you are talking about time. For example, if something is going to happen during the day after or the weekend after a particular time, it is going to happen during the following day or during the following weekend. 在 (某日、某周) 以后 [n PREP n]
例：She's leaving the day after Tomorrow. 她定于后天离开。
5. ADV After is also an adverb. (某日、某周) 以后地 [ADV after v]
例：Tomorrow. Or the day after. 明天。或者后天。
6. PREP If you go after someone, you follow or chase them. (追随) 在 (某人) 之后
例：Alice said to Gina, "Why don't you go after him, he's your son."
艾丽斯对吉娜说：“你为什么不追他，他是你儿子。”
7. PREP If you are after something, you are trying to get it. 以…为目标
例：They were after the money. 他们想得到这笔钱。
8. PREP If you call, shout, or stare after someone, you call, shout, or stare at them as they move away from you. 在 (某人) 身后 (喊、叫、瞪眼等)
例： "Come back!" he called after me. “回来！”他在我身后冲我喊。
9. PREP If you tell someone that one place is a particular distance after another, you mean that it is situated beyond the other place and further away from you. 在 (某地) 以外 (某距离处)
例： ...a station 134 miles after the train starts its journey. …在火车出发后的134英里以外的一个车站。
10. PREP If one thing is written after another thing on a page, it is written following it or underneath it. (写) 在 (某物) 之后
例：I wrote my name after Penny's at the bottom of the page.
我把我的名字写在了这页最下面彭尼的名字之后。
11. PREP You use after in order to give the most important aspect of something when comparing it with another aspect. (重要性) 在…之后
例：After Germany, America is Britain's second-biggest customer.
仅次于德国，美国是英国的第二大客户。
12. PREP To be named after someone means to be given the same name as them. 以 (同样的名字命名)
例：He persuaded Virginia to name the baby after him. 他劝弗吉妮亚给孩子命以他的名字。
13. PREP After is used when telling the time. If it is, for example, ten after six, the time is ten minutes past six. (…点) 过 (…分) [美国英语]
14. CONVENTION If you say "after you" to someone, you are being polite and allowing them to go in front of you or through a doorway before you do. 您先走 [礼貌]
15. PHRASE If you do something to several things one after the other or one after another, you do it to one, then the next, and so on, with no break between your actions. 一个接一个地
例： ...a lawyer who wins three cases, one after another. …一位连赢３个案子的律师。
16. PHRASE If something happens day after day or year after year, it happens every day or every year, for a long time. 日复一日地/年复一年地
例： ...people who'd been coming here year after year. …年复一年地来这里的人们。
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