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时间、地点与原因状语从句


一、时间状语从句

  1. when, while, as
    • when:可引导点时间(瞬时动词)或段时间;
    • while:只能接延续性动词,常表达对比(而,然而);
    • as:强调“随着……”或主从句动作同时发生。
  2. hardly... when... / no sooner... than...
    • 意为“一……就……”,句首部分倒装:
    • Hardly had he arrived when it started to rain.
  3. the moment / immediately / as soon as
    • 一……就……(名词短语或副词充当从属连词)。

二、地点与原因状语从句

  • 地点状语从句:where / wherever。
    • Leave the tools where you can easily find them.
  • 原因状语从句:because, as, since, now that。
    • because:语气质重,回答 why;
    • since / now that:既然(已知事实);
    • as:附带说明理由。

高中英语语法知识库与高考复习指南