once, one time, at one time的区别

问题描述

感觉 once, one time, at one time 都可以表示“一次”，它们有何区别？

老师答疑

陈老师：

▲强调次数时，用 once。此时不宜用 one time, at one time。如：

—How many time have you been there? 你去过那里多少次？

—Only once. 只去过一次。

She has been beaten only once in six starts. 她参加了六次比赛，只败过一次。

Considering she’d only been there once before, she did well to find the way. 考虑到她以前只到那里去过一次，她路还认得不错。

▲one time 的意思是“曾经有一次”，可与 once 换用。如：

One time we went out fishing on the lake at night. 有一次，我们夜里到湖里去钓龟。

I remember coming home from school one time and finding we’d been burgled. 我记得有一次放学回家发现家给被盜了。

One time I came home two hours late and nobody noticed. 曾经有一次我晚回家两小时，且没人注意到。

▲at one time 的意思是“曾经”“一度”。如：

He was at one time a professor in that university. 他曾一度是那个大学的教授。

At one time  Britain had colonies all over the world. 英国曾在全世界都有殖民地。

He was a great lawyer at one time, but he’s over the hill now. 他曾是一名有名的律师，但是现在不如从前了。

另外，at one time 也可表示“一下子”“一次性”“同时”等。如：

The fish lay thousands of eggs at one time. 这种鱼一次产卵数千个。

My brain can’t hold so much information at one time. 我脑子一下子记不住这么多信息。

Webber had three musicals playing in London at one time. 韦伯有三部音乐剧同时在伦敦上演。

王老师：

同意陈老师的解释。我补充一点关于once 和one time表示次数时， 在表示强调的情况下可以互换的情形。one time 语气更强些。

例如： I　have been there only one time. = only once.

托福听力考试答题指令：You will hear the recording for just one time.

雅思听力考试答题指令：The recording will be played once only.

陈老师：

【1】once 用法如下

(1)adv. 一次，一回;曾，曾经，从前，昔日

I have been there once.   
我到过那儿一次。

I once went around the world.   
过去我周游过全球。

(2)conj. 一…就 ，一旦…就… ，一经...便;当…时候，每当

Once you begin, you must continue.   
一旦开了头,你就必须继续下去。

Once you have taken the examination, you'll be able to relax.   
你一旦考过试,就可以轻松一下了。

Once you have promised you must do it.   
你既已答应,就应该去做。

(3)n. 一次，一回，一度

Once is enough for me.   
我一次就够了。

She's only done it the once so don't be too angry.   
她只做过这一次,所以不要太生气。

【2】one time一度, 某时;一次

My brain can't hold so much information at one time.
我脑子一下子记不住这麽多信息。

He was at one time so devoted to piano playing.
他曾经那么沉迷于弹钢琴。

At one time, she is fine, but at another, she is abnormal.
有时候，她表现得很好，有时候又失常。

It's a physical impossibility to be in two places at one time.
同时在两地是自然规律上不可能的事。

The census is taken one time every four years in our country.
我国每四年一次人口普查。

He has at one time or another argued both for and against most of the changes in the city over the past30 years.
他对这个城市近30年来所发生的大部分变化时而表示认可，时而又反对。

At one time I used to go skiing every winter.
我有一度每到冬季就去滑雪。

【3】at one time 曾经； 同时； 一度

My brain can't hold so much information at one time.
我脑子一下子记不住这麽多信息。

At one time, she is fine, but at another, she is abnormal.
有时候，她表现得很好，有时候又失常。

It's a physical impossibility to be in two places at one time.
同时在两地是自然规律上不可能的事。

The two continents were connected by a land mass at one time.
这两个大陆曾经由一大片陆地连接着。

An amount of food taken into the mouth at one time; a mouthful.
一口食物; 一口，少量一次吞入口的食物量; 一口的量

All the copies of a publication printed at one time from the same set of type.
印数，印次用同一个版本一次印刷的所有印刷物

He was at one time so devoted to piano playing.
他曾经那么沉迷于弹钢琴。