英语词汇when怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词

when

释义

when ★★★

FUNCTION WORD

/wen/

	When can be used in the following ways

	when 有以下用法
	as a conjunction (connecting two clauses)用作连词（连接两个分句）: When he saw me, he waved. 他一看到我就向我挥手。

	as a question adverb (introducing a direct or indirect question)用作疑问副词（引导直接或间接疑问句）: When shall we meet? 我们什么时候见面？ Do you know when these houses were built? 你知道这些房子是什么时候建的吗？

	as a relative adverb (referring back to a noun and introducing a relative clause)用作关系副词（回指前面的名词或引导一个关系从句）: I remember the day when the war began. 我记得战争开始的那一天。 (introducing a clause that is the subject, object, or complement of another clause)引导一个作另一个分句的主语、宾语或补语的从句): My proudest moment was when I received the poetry prize. 我最自豪的时刻是我得到诗歌奖时。

at what time or in what situation

1a	used for asking at what time something happens 在什么时候
	When will we know our test results? 我们什么时候能知道测试结果？
	When did the trouble start? 这次麻烦是什么时候开始的？
	Iasked him when he was going to start work. 我问他准备什么时候开始工作。
	‘You’ ll get your money back.’ ‘Yes, but when?’ “你会拿回你的钱的。”“不错，但是什么时候呢？”
	since when Since when have you been in charge of the project? 你是从什么时候起负责这个项目的？

1b	used for asking in what kind of situation something happens 在什么场合；在何种情况下
	When should I end a letter with ‘Yours sincerely’ ? 我该在什么情况下在信尾用
	When is it OK to hug someone that you’ ve just met? 在什么情况下与刚刚见面的人拥抱是合适的？

1c	used when someone knows or says at what time something happens, or in what situation it happens 在…的时候；在…情况下
	He didn’ t say when they would leave. 他没有说出他们什么时候将会离开。
	It is important to know when you have had enough to drink. 知道自己能喝多少很重要。

at the time that sth else happens

2a	as soon as another action or event has finished 一…就…
	When it stops raining, I’ ll show you the garden. 雨一停，我就带你去看花园。

2b	at the same time as something else 在…的同时
	Ialways wear a hat when I work in the garden. 我在花园干活儿时总是戴着帽子。
	when doing sth She was often nervous when facing the camera. 她面对照相机时常常很紧张。

2c	at a point during the time that something else is happening 当…时
	She claims she was at a friend’ s house when the shooting took place. 她声称发生枪击时，她在一个朋友家里。

at a particular time or in a particular situation
used for talking about a particular time or situation 在…时，在…情况下（用于谈论某个时间或某种情况）

The biggest surprise for Josie was when she was chosen as team captain. 最令乔西感到意外的一刻是她当选为队长的时候。

the time/day/year etc when Do you remember the time when we took your mother camping? 你记得我们带你母亲去露营的时候吗？

There are some days when everything seems to go wrong. 有一段日子各种事情好象全都出错。

used for introducing surprising information
used for introducing a situation that makes someone’ s action or behaviour seem surprising 虽然，既然（用于引出使某人的行为看似出人意料的情景）

Why does she always drive to work when she could easily take the train? 她去上班明明坐火车很方便可为什么总要自己开车呢？

He went on protesting his innocence when he was obviously guilty. 很明显他有罪，但他继续申明自己无罪。

used for describing a general situation
used for making a general statement about something that is always true or correct 当，如果（用于作出某事总是正确或属实的概括）

We use ‘an’ when the next word begins with a vowel. 当下一个单词以元音开头时，我们就使用an。

Tonic water makes a refreshing drink when served with ice and lemon. 奎宁水和冰、柠檬混在一起喝令人精神振奋。

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