as

/æz/ prep. / conj. / adv.
标准词条 CET-4
一句话记住

作为；以……身份；当作；当……时；因为；像……一样

释义与例句

prep. 作为；以……身份；当作
used to describe somebody's job, role, or function, or the way something is regarded
  1. She works as a nurse at the community hospital.
    她在社区医院担任护士。
  2. He used an old box as a bedside table.
    他把一个旧箱子当作床头柜使用。
展开其余 1 条例句
  1. As a parent, I understand your concern.
    作为一名家长，我理解你的担忧。
conj./adv. 当……时；因为；像……一样
used to introduce time or reason, or to make a comparison of manner or degree
  1. As I was leaving, the phone began to ring.
    我正要离开时，电话响了。
  2. As it was getting late, we decided to take a taxi.
    由于天色渐晚，我们决定乘出租车。
展开其余 1 条例句
  1. This room is not as bright as the one upstairs.
    这个房间不如楼上那个明亮。

词源与构词

记忆钩子 work as 后接真实职业；as...as 表同级比较；as 表“因为”时语气通常弱于 because。弱读常为 /əz/。

词族与关联词

同义词
  • because 因为
    as 引导原因时，原因往往是已知的背景信息；because 更直接、更有力地回答 why，是表达原因最常用的连词。
    We stayed inside because it was raining. 因为下雨，我们待在室内。
  • while 当……时；然而
    as 和 while 都可表示两个动作同时发生；while 更强调持续的一段时间，as 还可表示两个变化同步发展。
    While I was cooking, he set the table. 我做饭时，他摆好了餐具。
易混词（形近或义近，注意区别）
  • like 像；如同
    as 表示真实身份或职能，如 work as a teacher；like 表示相似比较，如 sing like a teacher。正式比较从句可用 as，口语常用 like。
    She sings like a professional. 她唱得像专业歌手一样。
  • since 因为；自从
    as 和 since 都可引导较次要、已知的原因；since 更常用于“自从”时间义，需依句意判断。
    Since you are ready, we can begin. 既然你准备好了，我们可以开始了。
常见搭配
  • as...as 像……一样……
    The second test was not as difficult as the first. 第二次测验不像第一次那么难。
  • as soon as 一……就……
    Call me as soon as you receive the results. 你一收到结果就给我打电话。
  • as well as 以及；除……之外还
    The centre offers language classes as well as cultural events. 该中心除文化活动外还提供语言课程。