中考英语经典句型丨状语从句详解1. 时间状语从句When当……时候, 通常指某一特定的时间点，主句与从句的动作同时发生。

I was doing my homework when dad left home. 爸爸离开家时，我正在做作业。

When Iooked out the window, I saw a plane flying.当我向窗外望去时，我看到一架飞机在飞行。

Someone knocked at then I was having breakfast.当我正在吃早饭时，有人敲门。

When the children had gone to bed, she began to prepare her lessons.当孩子们上床睡觉后，她开始准备功课。

While 在……期间，往往指一段时间。

意为“在……过程中，在……期间”，主要用三小表示主句和从句两个持续时间较长的动作同时发生或同时进行。

John was doing his homework in the study while we were eating. 我们吃饭时，约翰正在书房里做作业。

While we were in Australia, we saw her twice.我们在澳大利亚时，见过她两次。

Could you help us take care of the children while we are not at home?我们不在家时，你能帮我们照看一下孩子吗?We are cleaning the classroom while they are playing the football.他们在踢足球的时候，我们正在打扫教室。

As 一边……一边, 随着Mary sang songs as she was dancing. 玛丽一边跳舞一边唱歌。

As he grew older, he became more and more respectful to his mother. 随着年龄的增长，他越来越尊重他的母亲。

She was doing her homework as she was listening to the music.她一边听音乐，一边做作业。

As I was going out, it began to rain.我正要出去时，天开始下雨了。

The moment 一……就……=as soon as , immediately,---Did you remember to give Mary the money you owed her?你记得把你欠玛丽的钱给她了吗?---Yes, I gave her the moment I saw her.是的，我一见到她就给了她。

Not…until 直到……才We didn't start eating until mom came back from work.直到妈妈下班回来，我们才开始吃饭。

He didn’t leave the office until he finished the work.他直到完成工作才离开办公室。

Before 在……之前We must get to the station before nine o'clock.我们必须在九点钟以前到达车站。

The passengers should arrive at the airport an hour before the flight departs.旅客必须在飞机起飞前一小时到达机场。

After 在……之后The customer left the ticket counter after he had a quarrel with the ticket agent.那位顾客和售票员吵了一架后离开了售票处。

Since自从……, 通常主句用现在完成时I have never been there again since I graduated from the university.自从我大学毕业后，我就再也没有去过那里。

lt is three years since he joined the army. 他参军已有三年了。

It is just a week since we arrived here.我们到这里才一星期。

As soon as 一……就……I called my mother as soon as I got to Shanghai. 我一到上海就给妈妈打了电话。

As soon as I got good grades, I told my mother the good news. 我一取得好成绩，就把这个好消息告诉了妈妈。

Jack went to school as soon as he got well.杰克一痊愈就去上学了。

No sooner than 一……就……no sooner…than…用于句首要求倒装Hardly …when…Scarcely …when…No sooner had he arrived than he went away again.他一到就又走了。

Once 一旦……就……Once you see him, you will never forget him.一旦你见到他，你将永远不会忘记他。

Every time, each time 每次whenever 每当Each time he came to town, he would visit our school.他每次进城都要参观我们学校。

2. 条件状语从句引导状语从句的连接词有：If如果, unless除非, as long as只要, as (so) far as 据……所知，in case万一, provided that假如, on condition that 若是，以…为条件①If 如果If you don’t hurry up, you will miss the plane.如果你不快点，你就会误了飞机。

②Unless 如果不, 除非=if notWe can’t get there on time unless we book the earliest flight.除非我们订最早的班机，否则我们无法准时到达那里You can't get good grades unless you study hard. 除非你努力学习，否则你无法取得好成绩。

③as long as 只要We will succeed as long as we keep on trying.只要我们继续努力，就一定会成功。

④as (so) far as 据……所知As far as I know, he speaks English very well.据我所知，他英语讲得很好。

⑤In case 假使, 如果The plane cannot take off in case it rains.万一下雨，飞机就不能起飞了。

⑥provided that 如果,有时省略thatThe plane will be in good condition provided that it is taken care of carefully.如果悉心照料，这架飞机将会保持良好状态。

⑦On condition that 条件是…He said that he would come to the meeting on condition that no one asked him to speak.他说他会来参加会议，条件是没有人请他发言。

注:主从句的动作发生在将来时，则主句用将来时, 从句用一般现在时（主将从现）。

If l arrives in Beijing tomorrow, I will call my mother.如果我明天到达北京，我会打电话给我妈妈。

3. 地点状语从句地点状语从句只有两个连词: Where, wherever①Where 在……地方，在哪里Where there is a will, there is a way.有志者，事竟成。

②Wherever 无论哪里Wherever you go，I will never forget you.无论你到哪里，我都不会忘记你。

4. 原因状语从句because, as, since, now that, 和considering that, seeing that 这六个连词都用于表示表示原因, 但在语气上一个比一个弱.①Because 因为,通常从句放在主句后.Jack is very unhappy today because he failed in the exam.杰克今天很不高兴，因为他考试没及格。

School didn't have a sports meeting today because it was raining.今天学校没有运动会，因为下雨了。

②As 因为, 通常放在句首As LiLei is honest and modest, everyone likes him.由于李雷诚实谦虚，大家都喜欢他。

As they studied hard, they got good grades.由于他们努力学习，他们取得了好成绩③Since 既然因语气较弱, 常译为既然(众所周知的原因)Since you know about it, I won't tell you.既然你知道，我就不告诉你了。

Since everybody has come, let's start the class.既然大家都来了，我们开始上课吧。

④now that 既然Now that the weather is fine today, we can travel.既然今天天气很好，我们可以旅行了。

Now that you like reading, I'll buy you some books!既然你喜欢读书，我就给你买几本书!Now that you are here, you can dance with us.既然你来了，就可以和我们一起跳舞吧。

⑤considering that 顾及到,考虑到Considering that he is new here，everyone is very friendly to him.考虑到他是新来的，大家对他都很友好。

Considering that she is still young, we let him do some simple things.考虑到她还年轻，我们让他做一些简单的事情。