状 语 从 句状语从句是副词性从句，它在句子中担任状语，修饰主句的动词、形容词、副词或句子。根据修饰的方面，状语从句可以分为以下九种。种类从属连词例 句要点归纳时间状语从句whenWhen I came into the room, he was writing a letter.when指的是“当时”。 从句中的动词可表延续性动作，也可表瞬间性动作I was walking along the street when(这时) suddenly Tom patted me on the shoulder .when意为“这时”或“在那时”,这时when分句一般位于句末。whileWhile it was raining, they went out.All of us are working hard while he is sleeping.( 并列连词“然而”)while指“在某一段时间里”，“在期间”，while引导的动作必须是持续性的。asHe hurr
