1 状语从句状语从句在句子中可修饰谓语、形容词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。一、 时间状语从句可由 when, as, while, after, before, till(until), since, by the time, once, as soon as, the moment引导When I came into the office, the teachers were having a meeting. He started as soon as he received the news. Once you see him, you will never forget him. 注意： not ⋯until 的用法和强调句结构。如：I didn’ t realize that I had left my key in the office until I arrived home. It was not until I arrived home that I realized that I had left my key in the office. 在 hardly/scarcely⋯when⋯ , no sooner⋯than ⋯句式中，把hardly/scarcely/no sooner 置于句首时，第一个分句采用部分倒装语序。第一个分句用过去完成时，第二个分句用一般过去时Hardly had he sat down when there was a knock at the door. No sooner had I gone to bed than I went to sleep. 二、 原因状语从句原因状语从句时表示原因或理由的，引导这类从句的最常用的是 because, since, as, now that等，for 表示因果关系时为并列连词，常位于句尾，其前有逗号，语气最弱。He is disappointed because he didn’ t get the position.As it is raining, I will not go out. Now that you mention it, I do remember. It rained yesterday, for the ground is wet. 三、 地点状语从句通常由连词where 和 wherever 引导。表示抽象条件的含义时，从句须放在主句之前，如：We should go where the Party needs us most. You are free to go wherever you like. Wherever you go, whatever you do, I will be right here waiting for you. Where there is a will, there is a way. 【注意】注意区分where 引导的定语从句与状语从句。You’ d better make a mark where you have any question.You’ d better make a mark at the place where you have any question.四、 目的状语从句通常由 that, so that, in order that, so⋯that, le...
