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know

初中CET4考研IELTSGRE

[noʊ] [noʊ]

v.知道;了解;认识;确信

n.知情

常用短语

  1. know of

    知道,了解…,听说过…

  2. know about

    了解,知道……的情况,知道关于

  3. know better

    有头脑,明事理,不会上当

  4. 更多词组短语 »

场景例句

  1. I know his worth.

    我了解他的品质。

  2. You don't know jack.

    你什么都不知道。

    《牛津词典》

  3. Do you know that boy?

    你认识那个男孩吗?

  4. 更多双语例句 »

同义词辨析

  • 以下词都有“懂,知道,明了”的意思,区别是:
  • know 普通用词,多指通过学习、经验或他人传播而得到知识,含直接知道的意味。

    learn 通常指通过他人而获得消息或情况,侧重从不知到知的变化过程。

    comprehend 侧重熟悉了解的过程。

    understand 指对事物已有彻底的认识,不仅知其性质、含义和细节,而且了解其内外的关系。

    词根: -know- 知道
  1. know [noʊ] v. 知道;了解;认识;确信 n. 知情

    know: -know-知道 → 了解,认识

  2. knowledge [ˈnɑlɪdʒ] n. 知识,学问;知道,认识;学科

    knowledge: know 知道,理解 + -ledge 古英语名词后缀 → 知识,学问,知道,认识

  3. acknowledge [əkˈnɑlɪdʒ] vt. 承认;鸣谢;对…打招呼;告知已收到

    acknowledge: ac-去 + knowledge 知道 → 去知道 → 处于知道的状态 → 承认

单词家谱

鼠标或手指放在单词上看含义,点击单词看详细信息

know 知道,了解

来自古英语cnawan,来自Proto-Germanic*knew,来自PIE*gno,知道,认识,理解,词源同can,ken,cognizance,narrate,notice.

know 知道,了解;认识,熟悉

根源于原始印欧语-gn-。

同源词:can,ken

know (v.)

Old English cnawan (class VII strong verb; past tense cneow, past participle cnawen), "perceive a thing to be identical with another," also "be able to distinguish" generally (tocnawan); "perceive or understand as a fact or truth" (opposed to believe); "know how (to do something)," from Proto-Germanic *knew- (source also of Old High German bi-chnaan, ir-chnaan "to know"), from PIE root *gno- "to know."

For pronunciation, see kn-. Once widespread in Germanic, the verb is now retained there only in English, where it has widespread application, covering meanings that require two or more verbs in other languages (such as German wissen, kennen, erkennen and in part können; French connaître "perceive, understand, recognize," savoir "have a knowledge of, know how;" Latin scire "to understand, perceive," cognoscere "get to know, recognize;" Old Church Slavonic znaja, vemi). The Anglo-Saxons also used two distinct words for this, the other being witan (see wit (v.)).

From c. 1200 as "to experience, live through." Meaning "to have sexual intercourse with," also found in other modern languages, is attested from c. 1200, from the Old Testament (Genesis iv.1). Attested from 1540s in colloquial phrases suggesting cunning or savvy (but often in the negative); to not know one's ass from one's elbow is from 1930.

As far as (one) knows "to the best of (one's) knowledge" is late 14c. Expression God knows is from c. 1400. To know too much (to be allowed to live, escape, etc.) is from 1872. To know better "to have learned from experience" is from 1704.

You know as a parenthetical filler is from 1712, but it has roots in 14c. You know as a euphemism for a thing or situation unmentionable is from 1867; you-know-who for a person it is thought best not to name (but implying the hearer knows) is from 1840.

As an expression of surprise, what do you know attested by 1914. Don't I know it in the opposite sense ("you need not tell me") is from 1874. You never know as a response to something unexpected is attested from 1924.

know (n.)

"inside information," 1883, in in the know, from know (v.) Earlier it meant "knowledge, fact of knowing" (1590s).

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