(
课件网) 状语从句 在主从复合句中作状语的从句叫做状语从句。状语从句由从属连词引导，与主句连接，位于句首时，常用逗号与主句分开，位于句末时，其前一般不用逗号。 状语从句根据其用途可分为时间状语从句、条件状语从句、原因状语从句、目的状语从句、结果状语从句、让步状语从句、比较状语从句、地点状语从句等。 分类 引导词 例句 时间 状语从句 when/while/as (当……时), before (在……之前), after (在……之后), since (自从 ……以来), not … until (直到 ……才), as soon as (一…… 就……), as (一边……一边……) When it began to rain, Ben was helping his mom make dinner. He became an English teacher after he graduated from Peking University. He did not go to bed until his father came back. He writes as he listens. 条件 状语从句 if (如果), as long as (只要), unless (除非) Unless bad weather stops me, I go for a walk every day. 分类 引导词 例句 原因 状语从句 because (因为), since (既然), as (由于) I didn't accept his help because I wanted to try it myself. Since we have no idea about this problem, let's ask Mr. Wang for help. 目的 状语从句 so that (以便, 为了), in order that (为了) They sped up so that / in order that they could get there on time. 分类 引导词 例句 结果 状语从句 so … that / such … that (如此……以至于) It’s so hot that nobody wants to go out. 让步 状语从句 though/although (尽管, 虽然), even though/if (即使), whatever (无论什么), whenever (无论何时), wherever (无论哪里) Although milk is good， you should not drink too much of it. Whatever you want to be, you need to work hard to achieve it. 分类 引导词 例句 比较 状语从句 than (比……), as … as (和 ……一样), not as/so … as (不如……) He is as tall as his brother. 地点 状语从句 where (……的地方), wherever (无论哪里) Where there is a will, there is a way. You can sit wherever you like. 1. 时间状语从句 (1) when引导的时间状语从句，主句是一般将来时或祈使句，表示将来的意义时，从句通常用一般现在时。(简称 “主将从现” “主祈从现” )。 e.g. When he comes here, I will call you. while引导的时间状语从句表示正在发生某事的同时，另一件事发生了或正在发生。多用进行时态，主句时态视情况而定。 e.g. While the teacher is speaking, I am listening carefully. (2) as soon as引导的时间状语从句，主、从句的时态： ① 主将从现。 e.g. I’ll tell him the news as soon as he arrives. ② 主、从句同为过去时。 e.g. As soon as he got home, he threw his bag on the sofa. (3) until/till引导的时间状语从句 ① 主句为肯定句：谓语动词必须是延续性动词，表示这一动作或状态一直延续到until/till所表示的时间为止。 e.g. I’ll wait for you till/until you come to see me. ② 主句为否定句：谓语动词是非延续性动词, 常用句式 not … until “直到……才”。表否定意义的词还有never, nothing等。 e.g. I didn’t go to bed until I finished my homework. (4) since引导的时间状语从句用一般过去时，主句用一般现在时或现在完成时。即… have done … since sb. did … “自从某人做了……一直……”; It is + 一段时间 + since sb. did… “(自从) 做某事有…… (多久)”。 e.g. I have worked in this school since I graduated from Peking ... ...
