| 释义 |
conj- ①[重点在主要句子]当…的时候
- When it rains, he watches TV at home.下雨的时候,他在家里看电视。
- I was just reading a book when she came into my room.她走进我的房间时,我正在看书。
- When (he was) a boy, he was sickly.他小时候体弱多病(★when 多表示特定某「时候」, while 则恒表某「期间」。)
- ②[重点在次要句子]而就在那时候
- I was going to reply, when he cut in.我正要回答的时候,他插嘴了。
- ③ 每逢…的时候(=whenever)
- It is cold when it snows.每逢下雪,天气就很冷。
- ④ …后马上
- Stop when the bell rings.铃一响,就停止。
- ⑤ 倘若,假如,如果(=if)
- I'll tell you when you say "please".如果你说「请」,我就告诉你。
- ⑥ 虽然,尽管(=though)
- He works when he might retire.虽然可以退休他还是工作。
- ⑦ 既然…(=considering that ...)
- How can he get a job when he can't even read or write?他既然连读、写都不会,怎么能找到工作?
rel- ① 1[限定用法]…的时候2[包含先行词的关系副词用法]3[非限定用法;通常前面有逗点表稍微停顿]而就在那时候(=and then)
- It was in the days when telephones were rare.那是在电话还少的时候。
- It was the last day of February when he died.他去世的日子是二月的最后一天(★亦有省略 when 者)。
- There are times when she is very creative.有时候她很有创造力。
- Tuesday is when I am free.星期二是我有空的时候。
- Wait till noon, when he will be back.请等到中午,届时他会回来。
- ②[关系词;当关系代名词,非限定用法]【文】其时,彼时(=which time)
- He came on Sunday, since when things have changed.他星期日来之后事情就变了。
adv- ①[疑问词]在何时,在什么时候
- When did she die?她什么时候死的?
- Ask her when she will be ready.问她什么时候准备好。
- I don't know when to start.我不知道在什么时候出发。
- ②[疑问词;疑问代名词]何时,什么时候(=what time)
- From [Since] when ...?自从什么时候?
- Until when are you going to stay there?你要在那里逗留到什么时候?
n- ① 时间,日期(=time)
- the when and the why of his visit to London他访问伦敦的时间与原因[理由]
用法(1)用疑问副词when问过去的事情时,需用过去式,而不用现在完成式,因此: When has she died? 是错误的用法,应作 When did she die? (2)when用作 conj.引导表示未来的副词子句时,动词常用现在(完成)式: You will be able to do that when you are a man. 当你长大成人的时候,你就能做那事。 I'll go when I've had dinner. 我吃过饭就去。 比较: I don't know when he will come. 我不知道他什么时候来。 (when在此句中引导的是名词子句,不是副词子句) (3)when所引导的子句中,主词若与主要子句的主词一致, 【文】 可省略主词与be动词;但这种用法在 【口】 中比较少: He looked in when (he was) passing. 他在经过的时候,顺便往里面看看。 短语- when all comes to all
- when due
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