why

/waɪ/ adv. / conj.
标准词条 CET-4
一句话记住

为什么;为何;……的原因

释义与例句

adv. 为什么;为何
for what reason, used in direct or indirect questions
  1. Why did the council close this footpath to pedestrians?
    市政委员会为什么封闭这条人行道,不让行人通行?
  2. Can you explain why the results differ from last month's?
    你能解释为什么这次结果与上月的不同吗?
展开其余 1 条例句
  1. I never understood why she chose to work abroad.
    我一直不明白她为什么选择去国外工作。
conj. ……的原因
used after reason or a similar word to introduce an explanation
  1. That is why we need to check the figures again.
    那就是我们需要再次核对这些数字的原因。
  2. The reason why the flight was delayed has not been announced.
    航班延误的原因尚未公布。
展开其余 1 条例句
  1. There are several reasons why this simple method works so well.
    这种简单方法效果如此好有几个原因。

词源与构词

记忆钩子 why 询问原因,回答常用 because;That is why... 意为“那就是……的原因”,而 That is because... 后接具体原因,结构不可混淆。

词族与关联词

易混词(形近或义近,注意区别)
  • how come 为什么;怎么会
    why 与 how come 都可询问原因,但 how come 更口语化,且其后用陈述语序:How come you are late;直接疑问句中的 why 通常需要倒装:Why are you late。
    How come you are home so early today? 你今天怎么这么早回家?
常见搭配
  • why not 为什么不;好啊
    If the weather stays clear, why not eat lunch outside? 如果天气持续晴朗,为什么不到外面吃午饭呢?
  • the reason why ……的原因
    Cost is the main reason why many customers delay replacing old appliances. 成本是许多顾客推迟更换旧电器的主要原因。
  • why bother 何必费心;何必麻烦
    Why bother printing the directions when you can save them on your phone? 既然能把路线说明保存在手机上,何必费心打印出来呢?