New words:

instant /ˈɪnstənt/

adj. 形容词

  1. 立即的;立刻的
  2. 速食的;即食的

n. 名词

  1. 瞬间;刹那

详细词源拆解:

拉丁语 instare(靠近、迫在眼前),本义 “立刻到来、没有间隔”;
名词引申为一瞬间,形容词延伸出 “即刻的;速食即食的” 两层常用含义。

词汇家族

instant (adj. 立刻的;即食的 /n. 瞬间)
→ instantly (adv. 立刻,马上)
→ instantaneous (adj. 瞬间发生的,即时的)

必记高频搭配

instant coffee 速溶咖啡

My father drinks a cup of instant coffee every morning.

in an instant 一瞬间;刹那间

Everything changed in an instant after the heavy rain.

instant message 即时消息

We send instant messages to keep in touch every day.

instant success 一举成功;迅速走红

The young singer achieved instant success last year.

instantly (adv. 立刻,马上)

He instantly stood up. = He stood up in an instant.

instantaneous [ˌɪnstənˈteɪniəs] (adj. 即刻发生的(侧重物理、客观瞬间反应))

Lightning causes instantaneous bright flash.

关键使用提醒

  1. 重要语法考点:the instant(连词用法)= as soon as 一…… 就……

    The instant I arrive home, I will finish homework.
    我一到家就完成作业。
  2. 搭配区分

    instant food 即食食品;
    instant reply 即刻答复
  3. instant(adj)vs immediately(adv)词性不能混用

    错误:He replied instant.
    正确:He gave an instant reply. / He replied instantly.
  4. 写作同义替换:

    instant = immediate(adj. 立刻的),提升句式丰富度。

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