时间: 2025-04-24 04:36:02
美: [hwen; hwɛn]
英: [wen]
conj. 考虑到；既然；当…时；在…时；如果
adv. 什么时候，何时；（用于时间的表达方式之后）在那时；其时；当时
pron. 那时；什么时侯
n. 时间，时候；日期；场合
最后更新时间:2025-04-24 04:36:02
词源分析：来自古英语“hwænne”，其根源可能与日耳曼语族的词汇相连，表示时间的概念。没有明显的前缀或后缀。
历史背景：该词在英语中使用已久，早在11世纪的文献中就可以找到它的踪迹，反映出人们对时间的关注。
课本：在**的英语教材中，通常在初中及高中阶段会出现该词；在牛津和美国的教材中，通常在小学阶段开始介绍。
正式与非正式语境：
特殊场合：
When will you arrive?
We need to decide when to start the project.
When I was a child, I loved to play outside.
Please let me know when you are free.
The meeting is scheduled for when you return.
*. When it rains, the ground gets wet.
When is your birthday?
Let’s meet when the sun sets.
When you finish your homework, we can go out.
I remember when we first met.
同义词：
反义词：
通过这些内容的学*与分析，可以帮助理解“when”这个词的多种用法和语境，进而提高英语的应用能力。
[QUEST] You use when to ask questions about the time at which things happen. 什么时候 (用于疑问句，询问某事发生的时间)
例：When are you going home?你什么时候回家？
例：When did you get married?你是什么时候结婚的？
[CONJ] If something happens when something else is happening, the two things are happening at the same time. (表示两件事同时发生) 当…的时候
例：When eating a whole cooked fish, you should never turn it over to get at the flesh on the other side.吃一整条做熟的鱼时，你永远都不要把鱼翻过来吃另一边的肉。
[CONJ] You use when to introduce a clause in which you mention something that happens at some point during an activity, event, or situation. 当…时 (引导从句，表示从句中提到的事发生在另一活动、事件或情况期间)
例：When I met the Gills, I had been gardening for nearly ten years.我结识吉尔一家时，我已经几乎做了十年的园艺。
[CONJ] You use when to introduce a clause where you mention the circumstances under which the event in the main clause happened or will happen. 在…情况下 (引导从句，表示从句中提到的情况是主句中已经发生或即将发生的事的前提)
例：When he brought Imelda her drink she gave him a genuine, sweet smile of thanks.当他给艾梅尔达拿来一杯饮料时，她给了他一个真诚、甜美、表示谢意的微笑。
[CONJ] You use when after certain words, especially verbs and adjectives, to introduce a clause where you mention the time at which something happens. 什么时候 (用在某些词尤其是动词和形容词后，引导从句说明某事发生的时间)
例：I asked him when he'd be back to pick me up.我问他什么时候回来接我。
[PRON-REL] You use when to introduce a clause that specifies or refers to the time at which something happens. 当…的时候 (引导表示某事发生的具体时间的从句)
例：He could remember a time when he had worked like that himself.他还记得当他自己也像那样工作的那段时间。
[CONJ] You use when to introduce the reason for an opinion, comment, or question. 既然 (用于引入观点、评论、或问题的原因)
例：How can I love myself when I look like this?既然我这么一副样子，我怎么能爱我自己？
[CONJ] You use when in order to introduce a fact or comment which makes the other part of the sentence rather surprising or unlikely. 而 (引出令人吃惊的事实或评论)
例：Our mothers sat us down to read and paint, when all we really wanted to do was to make a mess.我们的妈妈们让我们坐下读书、画画，而我们真正想要做的却是胡闹一阵。