2020北京高中士兵考军校-英语知识点汇总（二十八）

　　Ⅲ。 关系副词引导的定语从句：

　　●When 指时间，在定语从句中作时间状语。其先行词是表时间的名词（如：time， day， week， tear， month， etc.）

　　He came last night when I was out.

　　We will put off the picnic until next week， when the weather would be better.

　　注意：先行词为“时间名词”，可用when引导定语从句，when在定语从句中作状语；还可以用which或that 引导，which或that在从句中作主语或宾语。

　　比较： I still remember the day when /on which my brother joined the army.（作状语）

　　Next month， when you will be in your hometown， is just around the corner.

　　I still remember the days which/that we spent together. （作宾语）

　　Next winter which/that you‘ll spend in Harbin， I’m sure， will be exciting.

　　I shall never forget the day when Shen Zhou Ⅴ was launched， which has a great effect on my life.

　　There are occasions when joking is not permissible.