【once】的翻译、意思

时间: 2025-01-10 23:06:21

【once】怎么读

美：[wʌns]

英：[wʌns]

【once】是什么意思、字义解释

1. adv. 一次；曾经

2. conj. 一旦

3. n. 一次，一回

【once】等级考试

CET4   TEM4   

【once】的详细解释

英文单词学*与分析：[once]

1. 基本定义：

  • 字面意思：Once 的字面含义是“一次”或“曾经”，通常用来表示在过去某个时间发生的事情。
  • 词性：Once 是副词和连词。

2. 词源与起源：

  • 词源分析：Once 源于古英语 "ānce"（一次），由 "ān"（一）和后缀 "-ce" 组成，表示“在同一时间”或“仅仅一次”。

  • 历史背景：首次记录在英语中的使用可以追溯到公元9世纪的古英语文献中。

  • 课本：该词可能出现在初中至高中的英语课本中，如牛津英语、美国国家地理等教材，适合7至15岁的学生。

3. 使用场景：

  • 正式与非正式语境：

    • 正式：在法律文件中，once 可以用来指代某个**的唯一性，如“Once the contract is signed, it is binding.”（一旦合同签署，即具有约束力。）
    • 非正式：在日常对话中，once 常用于叙述过去的经历，如“Once, I went to Paris.”（曾经，我去过巴黎。）

  • 特殊场合：在科学文献中，once 可以表示某个实验或观察只进行一次，如“Once measurements were taken, data analysis began.”（一旦进行了测量，数据分析就开始了。）

4. 示例句子：

  1. Once I finish my homework, I will go out.
    （一旦我完成作业，我就会出去。）

  2. I’ve only seen that movie once.
    （我只看过那部电影一次。）

  3. Once you learn the rules, it becomes easier.
    （一旦你学会规则，就会变得容易。）

  4. Once in a while, I enjoy a good book.
    （偶尔，我喜欢读一本好书。）

  5. She said she would help me once she got home.
    （她说她一到家就会帮我。）

*. The once bustling town is now quiet.
（曾经繁忙的小镇现在变得安静。）

  1. He only visited his hometown once since he moved.
    （自从搬家后，他只回过一次家乡。）

  2. Once you try this dish, you’ll love it.
    （一旦你试过这道菜，你会爱上它的。）

  3. It happened once, but it changed everything.
    （这事发生过一次，但改变了一切。）

  4. Once bitten, twice shy.
    （一朝被蛇咬，十年怕井绳。）

5. 同义词与反义词：

  • 同义词：

    • One time：强调发生的次数。
    • Formerly：强调过去的状态或情况。

  • 反义词：

    • Repeatedly：表示多次发生，与 once 的“一次”相对。

. 学方法：

  • 音标记忆法：通过音标 /wʌns/ 反复朗读，可以加深对词的记忆。可以将其分为两个部分：“won”（赢）和“ce”（次）联想为“赢得一次”。

  • 谐音联想记忆：可以联想“温斯”，想象一个人叫温斯，他曾经做过一件事（once）。

7. 关联词汇：

  • once in a while：偶尔
  • once upon a time：从前（常用于故事开头）
  • once again：再一次
  • once and for all：一劳永逸

以上信息为学*和理解“once”这个单词提供了全面的视角与方法。希望能帮助你更好地掌握这个词汇的用法与意义。

【once】例句

1、[[ADV with v]] If something happens once, it happens one time only. 一次

  1. 例：I met Miquela once, briefly.我见过蜜凯拉一次，时间很短。

  2. 例：Since that evening I haven't once slept through the night.自那晚之后，我再也没睡过一次囫囵觉。

2、[['the/this' PRON]] Once is also a pronoun. 一次

  1. 例："Have they been to visit you yet?"—"Just the once, yeah."“他们已经去看过你了吗？”— “来过，就那一次。”

3、[[ADV 'a' n]] You use once with "a" and words like "day," "week," and "month" to indicate that something happens regularly, one time in each day, week, or month. 每隔…一次

  1. 例：Lung cells die and are replaced about once a week.肺细胞约每周死亡、更新一次。

4、[ADV] If something was once true, it was true at some time in the past, but is no longer true. 从前

  1. 例：Her parents once ran a shop.她父母从前开过一家商店。

  2. 例：I lived there once myself, before I got married.我从前自己住在那儿，没结婚前。

5、[[ADV with v]] If someone once did something, they did it at some time in the past. 曾经

  1. 例：I once went camping at Lake Michigan with a friend.我曾和一个朋友去密执安湖野营。

  2. 例：We once walked across the frozen pond at two in the morning.我们曾在凌晨2点徒步横穿冰冻的池塘。

6、[CONJ] If something happens once another thing has happened, it happens immediately afterward. 一…就

  1. 例：The decision had taken about 10 seconds once he'd read a market research study.他读完一份市场调研报告后，10秒钟就做出了决定。

7、[PHRASE] If something happens all at once, it happens suddenly, often when you are not expecting it to happen. 突然

  1. 例：All at once there was someone knocking on the door.突然有人敲门。

8、[PHRASE] If you do something at once, you do it immediately. 立刻

  1. 例：I have to go at once.我得马上走。

  2. 例：Remove from the heat, add the parsley, toss and serve at once.从火上端下来，加入香芹，搅拌后立刻上桌。

9、[PHRASE] If a number of different things happen at once or all at once, they all happen at the same time. 同时

  1. 例：You can't be doing two things at once.你不能同时做两件事。

10、[[强调]] For once is used to emphasize that something happens on this particular occasion, that it has never happened before, and may never happen again. 就此一次

  1. 例：For once, Dad is not complaining.就这一次，爸爸没有抱怨。

11、[PHRASE] If something happens once again or once more, it happens again. 再一次

  1. 例：Amy picked up the hairbrush and brushed her hair once more.艾米拿起梳子，又梳了一遍头发。

12、[[强调]] If something happens once and for all, it happens completely or finally. 最终地

  1. 例：We have to resolve this matter once and for all.我们必须彻底解决这件事情。

13、[PHRASE] If something happens once in a while, it happens sometimes, but not very often. 偶尔

  1. 例：Your body, like any other machine, needs a full service once in a while.你的身体就像其他机器一样，偶尔也需要一次全面保养。

14、[PHRASE] If you have done something once or twice, you have done it a few times, but not very often. 一两次; 几次

  1. 例：I visited once or twice.我参观过一两次。

  2. 例：Once or twice she had caught a flash of interest in William's eyes.有一两次，她捕捉到威廉眼中一闪的关注。