摘要：
初中英语状语从句讲解ppt状语从句 (Adverbial Clause) 是指 句子 用作状语时，起副词作用的句子。状语从句中的从句可以修饰谓语、非谓语动词、定语、状语或整... 初中英语状语从句讲解ppt
状语从句 (Adverbial Clause) 是指 句子 用作状语时，起副词作用的句子。状语从句中的从句可以修饰谓语、非谓语动词、定语、状语或整个句子。下面就是我给大家带来的状语从句英语语法知识点汇总，希望大家喜欢！
1 地点状语从句
地点状语从句通常由where, wherever 引导。
Where I live there are plenty of trees.
我住的地方树很多。
Wherever I am I will be thinking of you.
不管我在哪里我都会想到你。
2 方式状语从句
方式状语从句通常由as, (just) as…so…, as if, as though引导。
1) as, (just) as…so…引导的方式状语从句通常位于主句后，但在(just) as…so…结构中位于句首，这时as从句带有比喻的含义，意思是"正如…"，"就像"，多用于正式文体，例如：
Always do to the others as you would be done by.
你希望人家怎样待你，你就要怎样待人。
As water is to fish, so air is to man.
我们离不开空气，犹如鱼儿离不开水。
Just as we sweep our rooms, so we should sweep backward ideas from our minds.
正如打扫房屋一样，我们也要扫除我们头脑中落后的东西。
2) as if, as though
两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反，有时也用陈述语气，表示所说情况是事实或实现的可能性较大。汉译常作"仿佛……似的"，"好像……似的"，例如：
They completely ignore these facts as if (as though) they never existed.
他们完全忽略了这些事实，就仿佛它不存在似的。(与事实相反，谓语用虚拟语气。)
He looks as if (as though) he had been hit by lighting.
他那样子就像被雷击了似的。(与事实相反，谓语用虚拟语气。)
It looks as if the weather may pick up very soon.
看来天气很快就会好起来。(实现的可能性较大，谓语用陈述语气。)
说明：as if / as though也可以引导一个分词 短语 、不定式短语或无动词短语，例如：
He stared at me as if seeing me for first time.
他目不转睛地看着我，就像第一次看见我似的。
He cleared his throat as if to say something.
他清了清嗓子，像要说什么似的。
The waves dashed on the rocks as if in anger.
波涛冲击着岩石，好像很愤怒。
3 原因状语从句
比较：because, since, as和for
1) because语势最强，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知，就用as或 since。
I didn't go, because I was afraid.
Since /As the weather is so bad, we have to delay our journey.
2) 由because引导的从句如果放在句末，且前面有逗 号，则可以用for来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用for。
He is absent today, because / for he is ill.
He must be ill, for he is absent today.
4 目的状语从句
表示目的状语的从句可以由that, so that, in order that, lest, for fear that, in case等词引导，例如：
You must speak louder so that /in order that you can be heard by all.
He wrote the name down for fear that(lest) he should forget it.
Better take more clothes in case the weather is cold.
5 结果状语从句
结果状语从句常由so… that 或 such…that引导，掌握这两个句型，首先要了解so 和 such与其后的词的搭配规律。
比较：so和 such
其规律由so与such的不同词性决定。such 是形容词，修饰名词或名词词组，so 是副词，只能修饰形容词或副词。 so 还可与表示数量的形容词many, few, much, little连用，形成固定搭配。
so foolish such a fool
so nice a flower such a nice flower
so many / few flowers such nice flowers
so much / little money. such rapid progress
so many people such a lot of people
( so many 已成固定搭配，a lot of 虽相当于 many，但 a lot of 为名词性的，只能用such搭配。)
so…that与such…that之间的转换既为 so与such之间的转换。
The boy is so young that he can't go to school.
He is such a young boy that he can't go to school
6 条件状语从句
连接词主要有 if, unless, as/so long as, on condition that 等。.
if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。
unless = if not.
Let's go out for a walk unless you are too tired.
If you are not too tied, let's go out for a walk.
典型例题
You will be late ___ you leave immediately.
A. unless B. until C. if D. or
答案A。 句意：除非你立即走，否则你就回迟到的。可转化为 If you dong leave immediately, you will be late. B、D句意不对，or表转折，句子如为 You leave immediately or you will be late.
7 让步状语从句
though, although
注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用
Although it's raining, they are still working in the field.
虽然在下雨，但他们仍在地里干活。
He is very old, but he still works very hard.
虽然他很老，但仍然努力地工作。
Though the sore be healed, yet a scar may remain.
伤口虽愈合，但伤疤留下了。 ( 谚语 )
典型例题
1) ___she is young, she knows quite a lot.
A. When B. However C. Although D. Unless
答案：C。意为虽然她很年轻，却知道许多。
2) as, though 引导的倒装句
as / though引导的让步从句必须表语或状语提前(形容词、副词、分词、实义动词提前)。
Child as /though he was, he knew what was the right thing to do.
= Though he was a small child, he knew what was the right thing to do.
注意： a. 句首名词不能带任何冠词。
b. 句首是实义动词，其他助动词放在主语后。如果实义动词有宾语和状语，随实义动词一起放在主语之前。
Try hard as he will, he never seems able to do the work satisfactorily.
= Though he tries hard, he never seems…
虽然他尽了努力，但他的工作总做的不尽人意。
3) ever if, even though. 即使
We'll make a trip even though the weather is bad.
4) whether…or- 不管……都
Whether you believe it or not, it is true.
5) "no matter +疑问词" 或"疑问词+后缀ever"
No matter what happened, he would not mind.
Whatever happened, he would not mind.
替换：no matter what = whatever
no matter who = whoever
no matter when = whenever
no matter where = wherever
no matter which = whichever
no matter how = however
注意：no matter 不能引导主语从句和宾语从句。
(错)No matter what you say is of no use now.
(对)Whatever you say is of no use now.
你现在说什么也没用了。(Whatever you say是主语从句)
(错)Prisoners have to eat no matter what they're given,
(对)Prisoners have to eat whatever they're given. 囚犯们只能给什么吃什么。
8 比较while, when, as
1)as, when 引导短暂性动作的动词。
Just as / Just when / When I stopped my car, a man came up to me.
2)当从句的动作发生于主句动作之前，只能用when 引导这个从句，不可用as 或 while。
When you have finished your work, you may have a rest.
3)从句表示"随时间推移"连词能用as，不用when 或while。
As the day went on, the weather got worse.
日子一天天过去，天气越变越坏。
9 比较until和till
此两个连词意义相同。肯定形式表示的意思是"做某事直至某时"，动词必须是延续性的。否定形式表达的意思是"直至某时才做某事"。动词为延续性或非延续性都可 以。 正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还是否定式。
肯定句：
I slept until midnight. 我一直睡到半夜时醒了。
Wait till I call you. 等着我叫你。
(在肯定句中可用before代替 Let's get in the wheat before the sun sets.)
否定句：
She didn't arrive until 6 o'clock.
她直到6点才到。
Don't get off the bus until it has stopped.
公共汽车停稳后再下车。
I didn't manage to do it until you had explained how. 直到你教我后，我才会做。
1)Until可用于句首，而till通常不用于句首。
Until you told me, I had heard nothing of what happened.
直到你告诉我以前，出了什么事我一点也不知道。
2)Until when 疑问句中，until要放在句首。
---Until when are you staying? 你呆到什么时候?
--- Until next Monday. 呆到下周一。
注意：否定句可用另外两种句式表示。
(1)Not until …在句首，主句用倒装。
Not until the early years of the 19th century did man know what heat is.
直到19 世纪初，人类才知道热能是什么。
Not until I began to work did I realize how much time I had wasted.
直到我开始工作，我才认识到了我已蹉跎了几多岁月。
(2) It is not until… that…
10 表示"一…就…"的结构
hardly/scarcely…when/before, no sooner…than 和as soon as都可以表示"一…就…"的意思，例：
I had hardly / scarcely got home when it began to rain.
I had no sooner got home than it began to rain.
As soon as I got home, it began to rain.
注意：如果hardly, scarcely 或no sooner置于句首，句子必须用倒装结构：
Hardly / Scarcely had I got home when it began to rain.
No sooner had I got home than it began to rain.
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说起来很烦，有ppt，需要的话可以给你~
根据英语从句在句子中的句法作用，从句可分为三类：名词性从句，形容词性从句和副词性从句。通过对引导从句的各种引导词进行观察，我们不难发现，有的从句可以直接从引导词的形式和意义上来区分。如：Though the old man is over seventy, he still sees well and hears well. 我们一读此句，就可以认定，由Though引导的从句是一个让步状语从句。因为though只能引导让步状语从句，不能引导其它从句，但是有些引导词却能引导多种从句。如引导词when：既可以引导时间状语从句又可以引导定语从句，还可以引导名词性从句。此外，象that，where等，三类从句均可引导；who既可引导定语从句，又可引导名词性从句；so that 即可引导目的状语从句，又可引导结果状语从句……因此，这些形同义不同的引导词给我们理解、掌握、运用各种从句带来了很大困难。另外，搞不清楚从句在句子中所起的作用，就不能正确理解原文。那么，怎样正确区分各种形同义不同的引导词引导的从句呢？ 1、 分析句子结构以区虽从句的种类 遇到一个复合句，首先要分析其句子结构，看从句在整个句子中起什么作用，那么它就是什么从句。 2、 分析引导词的句法作用以区别从句的种类 that这个词即是引导同位语从句，又可引导定语从句，这种两种从句从形式和结构上看特别相似，如何区分呢？ 区分that引导的是同位语从句还是定语从句的方法是，看that在从句中是否充当句子成分，若that在从句中不充当任何成分，则为同位语从句；若that在从句中充当主语或宾语，则为定语从句。 3、 根据被修饰词来判断从句的种类 定语从句常常修饰一些具有实际意义的名词，如：the film；the student；the book；a house等等。而同位语从句常常修饰一些表示抽象概念的名词，如fact、idea、promise、truth等，用来说明这些名词所表示的具体内容。状语从句在句子中常用来修饰谓语动词。 4、 根据从句前词的词性来判断从句的种类 宾语从句分两种：动词的宾语从句、介词的宾语从句。宾语从句前肯定是动词或介词。定语从句是用来修饰名词或代词的，所以其前一定是一个名词或代词。 5、 根据上下文意义和结构形式上区分从句的种类 如so that即可引导目的状语从句，又可引导结果状语从句，如何区分呢？主要从以下两点来区分。 ①根据上下文意义判断。“以便……”表示目的，是目的状语从句，“以致于……”，“结果……”表示结果，是结果状语从句。 ②从结构形式上来分辨。so that前有逗号，为结果状语从句，反之，则为目的状语从句。有时，so that前无逗号，这里要看从句中有无can、could、may、might、will、would、should 等情态动词，如果有，则多是目的状语从句，若没有，则多是结果状语从句
状语从句是英语语法中的常用句型语法，那么大家是否清楚什么是状语从句呢?下面就是我给大家带来的初中英语状语从句详细解析，希望能帮助到大家!
状语从句详细解析
一、什么是状语、状语从句?
状语：是用来修饰动词、形容词、副词或全句用的。
eg：He works hard! (他努力工作)中的hard。
状语的位置：
修饰形容词或副词的状语放在被修饰语之前。
eg：The Summer Palace is very beautiful.颐和园非常美丽。
(very 为状语，修饰形容词 beautiful，放在 beautiful 之前)。
修饰动词的状语有的放在动词前，有的放在动词之后。
如果动词有宾语，状语一般须放在宾语之后。
eg： I He often came here to see me.他经常到这里来看我。(often 为状语，修饰动词came，放在前面)。
I know him well.我十分了解他。(well为状语，修饰动词 know，放在 know 之后)。
状语从句：用一个 句子 (从句)来作另一个句子(主句)的状语，用作状语的句子就叫作状语从句。作什么样的状语就叫什么类型的状语从句。例如：条件状语从句就是用一个句子来作条件状语。
二、状语从句的分类。
(1)时间状语从句
凡是从句都必须有引导词，引导时间状语从句的词有when，before，after，until，as soon as，while 等，具体用法如下：
1. when 意为“当……时”，引导时间状语从句，表示主句的动作和从句的动作同时或先后发生。
eg: I feel very happy when you come to see me.
When you are crossing the street，you must be careful.
when引导的时间状语从句，when的从句可以用延续性动词，也可以用瞬间动词。
eg：He was working at the table when I went in. 。
Someone knocked at the door when I was sleeping.
I will visit my good friend when I have time.
注：when也可以作并列连词，表示一个动词正在进行的时候，突然间发生了另外一件事。
eg: I was fishing by the river，when someone called for help.
We were working in the chemistry lab，when the lights went out.
2. before 意为“在……之前”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。 eg: We cleaned the classroom before we left school yesterday.
He had been a cook before he went to college .
after 意为“在……之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。
eg: After you use plastic bags，you mustn't throw them about.
He called me after he had finished his work.
注：若主句和从句两个动作发生的先后顺序十分接近，那么也可以不用完成时态，如上面的 第二句可改成：He called me after he finished his work.
3. since引导的时间状语从句，译为“自从……”，主句常用现在完成时，从句常用一般过去时。
eg: I have taught English, since I came to Shenzhen.
注：常用句型：It is +时间段+since从句 译为：自从……有多长时间了。
eg. It is six years since she graduated from the university.
4. until 意为“直到……时”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。
当主句的谓语动词是持续性动词时，主句常用肯定形式;当主句的谓语动词是非持续性动词时，从句常用否定形式，not…until… 意为“直到……才……”，这时的until可以用before 来替换。
eg：I'll stay here until you come back.
我会呆在这里，直到你回来。 (stay表示的 动作可以持续)
He didn't go to bed until he finished his homework.
他直到做完作业才睡觉。(go to bed 表示的动作不能持续)
5. as soon as 意为“一……就……”，表示从句的动作一发生，主句的动作马上就发生。
eg：I'll tell him about it as soon as he comes back.
6. while引导的时间状语从句，常译为“与……同时，在……期间”，while的从句中常用延续性动词或表示状态的词。
eg. They rushed in while we were discussing problems.
Father was cleaning the car while I was playing computer games.
注：while也可以作并列连词，表转折的关系，相当于but，译为“然而”。
eg. I like listening to music，while my brother likes doing sports.
7. till和until引导的时间状语从句，译为“直到……为止”，not … till / until引导的时间状语从句，译为“直到……才”。前者强调主句动作的结束，用延续性动词，后者强调主句动作的开始，用瞬间动词。
eg. I will wait for my friend until / till he comes. 我要一直等到我朋友来。
We won't start our discussion until / till he comes.
我们要等到他来了，再开始我们的讨论。
(2)条件状语从句
1.条件状语从句通常由if, unless引导。
eg：What shall we do if it snows tomorrow?
Don’t leave the building unless I tell you to.
2.在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。(主将从现)
eg：I’ll help you with your English if I am free tomorrow.
He won’t be late unless he is ill.
3.“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带有条件状语从句的复合句。
eg：Hurry up, or you’ll be late.=If you don’t hurry up, you’ll be late.
Study hard and you will pass the exam.
=If you study hard, you will pass the exam.
(3) 原因状语从句
1.原因状语从句通常由because, since, as引导。
eg：He didn’t come to school because he was ill.
As it is raining, we shall not go the zoo.
Since you can’t answer the question, I’ll ask someone else.
2. because表示直接原因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。As和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。
eg：------Why aren’t going there? ------Because I don’t want to.
As he has no car, he can’t get there easily.
3. because和so不能同用在一个句子里。
For 语气最弱，它所引导的分句必须放主句后面，引补充说明作用。
eg：Put on more clothes, for it's cold outside.
注：because, since, as, for 的区别
语气 位置 意义
because 最强 前或后 “原因”;表客观因果关系;回答“”
as 较强 前 “由于”;把众人所知的事实当作理由
since 较弱 前 “既然”;就对方陈述的事实作为理由
for 最弱 后 “理由”;对某一事实进行推断的理由
(4)地点状语从句
常用where(哪里)和wherever(无论哪里)
eg. Where there is a will，there is a way. 有志者，事竟成。
We will go wherever the motherland need us most. 我们要到祖国最需要的地方去。
高中英语状语从句讲解ppt
你可以依据这些内容做一个PPT文件，自己用更方便内容提示： 状语从句状语从句时间状语从句地点状语从句原因状语从句的状目的状语从句结果状语从句条件状语从句方式状语从句让步状语从句比较状语从句从句 1 .时间状语从句1)由连词when, while, as, as soon as, before, after, since, till/ until等引导。�6�1 主句用将来时， 从句常用一般现在时表将来I will tell him when he comes back. 2)while, when, as辨析While引导的时间状语从句只指一段时间，强调某一段时间内， 主从句动作同时发生。 从句动词常是延续性的When既可以指一个时间点,也可以是一段既可以指个时间点,也可以是时间， 可表示主从句的动作同时或先后...状语从句状语从句时间状语从句地点状语从句原因状语从句的状目的状语从句结果状语从句条件状语从句方式状语从句让步状语从句比较状语从句从句 1 .时间状语从句1)由连词when, while, as, as soon as, before, after, since, till/ until等引导。• 主句用将来时， 从句常用一般现在时表将来I will tell him when he comes back. 2)while, when, as辨析While引导的时间状语从句只指一段时间，强调某一段时间内， 主从句动作同时发生。 从句动词常是延续性的When既可以指一个时间点,也可以是一段既可以指个时间点,也可以是时间， 可表示主从句的动作同时或先后发生。 从句动词可以是延续性的， 也可以是非延续性的。As强调主句、 从句动作相并发生,译为” 一边…一边…”段 When he returned , his wife was he was reading, his wife was hurried home, looking behind as he went . 对比训练 1____ he heard this, he got very angry. 2. I met Lucy____ I was walking along the . ____ a child, he lived in the . when B. while C. as 另外, when/while还作并列连词,连接并列分句,while表示 “而,可是” 如:I like reading while my wife enjoys watching 表示 “就在这时” 在下列结构中， 表示某件事正在发生或刚刚发生， 另一动作同时发生。 about to do… when… doing… when… done… when…. We were about to start when it began to was playing computer games when mom came in. while的用法小结 ：①While I was walking down the street, Icame across an old friend. ( while=_______)②He likes pop music, while I am fond offolk music. ( whilefolk music. ( while③While I really don’t like art, I find hiswork impressive. (while=___________)whenwhenbutbutalthoughalthough We were about to leave____ it began to . She thought I was talking about her son, ____, in fact, I was talking about my . Hardly had I finished my composition ____ the bell . when B. while C. as D. during 3)until/till(不用于句首)“延续的动词（肯定式） +until ”表示“直到…为止”I waited for him until he came back.“非延续性动词（否定式） +until ”表示“直到才”“直到┅才”He didn’t go to bed until he finished his work.注意: not until 在句首时要倒装Not until he saw it himself did he believe it. 4)表示“一…就…”的句型(1)as soon as, once, the moment/ minute/ second, immediately/ directly/ instantlyAs soon as he comes, I’ll tell moment I saw him, I recognized l ft idi t l thI left immediately the clock struck 5.(2)on / upon doing / on (upon) one’s +nOn arriving at the station, the thief was his arrival in Paris, he was recognized as a famous tk 5 (3)no sooner… than/ hardly… when / scarcely… whenNo sooner had they reached home than it started to had I entered the room when the telephone rangtelephone rang. 5)Every time, each time等也可以引导时间状语从句Every time I caught a cold , I had pain in my head. 连接词before的小结：1. We had sailed four days and four nights before we saw . We hadn’t run a mile before he felt . Before I could get in a word, he had measured me.“……“……才”才”“ “不到不到…………就”就”“ “还没来得及”还没来得及”It will be a long time It will be a long time beforeIt won’t be long It won’t be long beforeIt is / has been two years It is / has been two years sincesthsth. .before………before…since sbsb did did 1 1） 句型） 句型It will be/wasIt will be/was＋段时间＋“ “还要过多久才还要过多久才……” 如：如： It will be two years It will be two years before the 2） 句型） 句型It will be/was notIt will be/was not＋一段时间＋“ “不多久就不多久就……”……”如：如：It wasn’t two years It wasn’t two years .＋段时间＋before………” before he leaves before…he leaves ＋一段时间＋before…before…before he left the he left the y y 一、 若since引导的状语从句的谓语动词是终止性的过去时， 则从句表示的时间是“从动作开始的那一时刻起” 。 如：He has studied very hard since he came to our school.自从他来到我们学校自从他来到我们学校， 他学习就非常努力。We have been missing them since they left here自从他们离开这里， 我们就一直很想念他们。他学习就非常 二、 若since引导的状语从句的谓语动词是持续性动词或表示状态的动词的过去时时， 则从句表示的时间是“从那持续动作或状态结束时算起” 。 如：I haven’t heard any noise since I slept. Sleep 为持续性动词， sleep的动作结束时，即“醒来” 时， 这句应译为“我醒后还未听到任何声音” 。John is now with his parents in New York, it is already three years since he was a teacher约翰现在和父母一起住在纽约， 他不当教师已经三年了。 How long is it since you lived in Shanghai?你离开（没住在） 上海多久了 延续性； 不… 多长时间了It is half a month since he was a League member.他退团（不当团员） 半个月了。It’s been quite some time since I was last in London我离开伦敦已很长时间了。比较比较： He has written to me frequently since I was ill.自从我病愈以来， 他屡次给我写信。（从句谓语为状态动词）He has written to me frequently since I fell ill.自从我生病以来， 他就屡次给我写信。（从句谓语为终止性动词） ’ll let you know ____ he comes . before B. becauseC. as soon asD. althoughIt is about ten years _____ I met you B. . whenD. . when D. as____ we got to the station, the train had left B. UnlessC. Since D. When We didn’t go home _____ we finished the . since B. until C. because D. thoughIt was not ______ she took off her dark glasses ______ I realized she was a ffiltAfamous film star. A. when; that B. until; that C. until; when D. when; thenhth tB. He was about halfway through his meal ______ a familiar voice came to his ears. A. why B. where C. when D. while Scientists say it may be five or six years ______ it is possible to test this medicine on human patients. A. since B. after C. before D. whe Why didn’t you tell him about the meeting? He rushed out of the room____I could say a word. A. before B. until C. when D. after _____ I accept that he is not perfect, I do actually like the person. A. While B. Since C. Before D. Unless Did you remember to give Mary the money you owed her?money you owed her? Yes. I gave it to her ______ I saw her. A. while B. the moment C. suddenly D. once 2. 让步状语从句引导词有：although, though, even if/though, as , while（尽管） whether…or…( 无论…还是… ),whoever= no matter whowhoever= no matter who whenever= no matter whenwhatever= no matter whatwherever= no matter wherehowever= no matter how 1)as 引导的让步从句要倒装， 句型为：形容词/ 副词/ 名词（不带冠词） / 动词（原形） +主语+谓语Young as he is, he knows a as I like it, I can’t afford as he is he is well-educatedFarmer as he is, he is as I might, I couldn’t lift the ） although不倒装，不倒装, as 必须倒装though可倒装也可Although/Though he was ill he didn’t stop working. 3） no matter +疑问句引导让步状语从句No matter what happened, he shouldn’t mind.=Whatever happened, he shouldn’t matter who you are, you should obey the social rules.=Whoever you are, you should …oe e you a e, you s ou d4) whether …orWhether you believe it or not, it is … or…不管…还是…a. Whether the weather is good or bad, they will set off as they planned. he drives or takes the train, he will be here on time. 1 、difficult it was. A. however B. no matter C. whatever D although 2、 The old tower must be saved, ______the cost. A． however B． whatever C． whichever D． wherever 对比训练 3 1 . Child ____ she is, she know a . He did the experiment ____ he was . The pianos in the other shop will be cheaper, but not ____ . during B. as C. so D. thoughE. both B and CHe tried his best to solve the problem, ___ 3. 地点状语从句引导词有: where, whereverI’ll follow you wherever you there is a will , there is a way.注意： 不要混同于where 引导的定语从句注意： 不要混同于where 引导的定语从句(有志者， 事竟成）与定语从句的区别： where引导定语从句，从句前有一个表示地点的名词。Go back where you came back to the village where you came from. When you read the book ,you 'd better make a mark ___ you have any question. A at which B at where C the place where D whereWhen you read the book ,you 'd better ymake a mark at the place _____ you have any which B at whereC the place where D wherey 4. 原因状语从句由because, since, now that, as引导。(1). because 语气最强， 用来回答why提问，可用在强调句型中,引导的从句表示直接的、根本的原yin It was because he was ill that he didn’t go with us.(2).Since语气比because弱， 表示关系上的自然结果， 一般译成“既然， 鉴于” （往往放于主句之前） 表示显然的或已知的原表示显然的或已知的原因因..Since no one is against it ,let’s carry out the plan.（既然没人反对, …) (3).as语气最弱， 只说明一般的因果关系（可放于主句之前， 也可放于主句之后）Wear strong shoes as we shall do a lot of walking today.与与sincesince没多大区别(4).for也可以表示原因， 不是说明直接原因， 而是对某种情况加以推倒， 用于表示补充说明理由补充说明理由。He must be ill, for he is absent today.(5).now that用来说明一种新情况， 然后加以推理， now that放于句首时， that可省略。Now ( that) everybody is here, let’s begin.没多大区别 ______ the day went on, the weather got With B Since C While D AsA. With B. Since C. While D. AsHe took off his coat _______ he felt . because B. as C. if D. since 5. 目的状语从句引导词： in order that, so that(为了 ） ,for fear that , in case,谓语动词常含有can, could, may, might, will, would等情态动词。I’ll speak slowly so that everybody can understand wrote the name down for fear that( in case) he would forget. in casein case与与for fear thatfor fear thatI will have to stay at home this evening I will have to stay at home this evening ______________ my teacher my teacher casein casebecause of the possibility of because of the possibility of sthsth happeninghappeningStudents of Class 13 are working hard Students of Class 13 are working hard theses days _________________ they theses days _________________ they might fail the fail the fear thatfor fear thatto avoid the danger of to avoid the danger of sthsth happeninghappening Ann listened carefully _____ she could discover what she . such thatB. in order thatC. becauseD. even though11 . I hurried ____ I wouldn’t be late for . sinceB. so thatC. as ifD. unlessth t 6. 结果状语从句：引导词有： so…that, such…that, so that常用句型：1)so+ adj. (adv.) + that2)so+ adj + a (an) + n +that2)so+ adj. + a (an) + n. +that3)Such +a (an) +adj. + n. + that4)Such +adj. + n (s) +thatHe spoke so fast that I couldn’t follow was such a good day that we all went swimming. He left in ___a hurry ___he forgot to lock the . such, that B. so, that . such, as D. so, rotate (轮作) their crops _____ the soil will remain . so that B. because of C. in order to D. rather thanIt was ____ a hundred people looked lost in . so large a room that B. so large roomC. a such large room D. such large a roomHe has ____ little education that he can’t teach ____ little children. A. so; such B. too; such C. a; so D. very; so 7. 条件状语从句1. 由if, unless(= if not), so/ as long as(只要), suppose/supposing(假设，如果), in case(以防), on condition that, only if , if only引导。e g You may use the room as long as . You may use the room as long as you clean it up .“祈使句+and/ or/ or else/otherwise”引导的结果句， 祈使句在实际意义上相当于条件状语从句。Use you head, and you will find a up now, or you will be late. 1 、 The WTO cannot live up to its name ____ it does not include a country that is home to one fifth of mankind. A． as long as B． while2、It is known to all that _____ you exercise regularly, you won’t keep good health. A. unless B. whenever C. although D. if unless 相当于 if not， 意思是“除非…”“如果不…就…”。 这也是高考的热点之一。 复习时也应给予高度重视。1 、 _____ I can see, there is only one possible way to keep away from the danger. A. As long as B. As far as C. Just as D. Even if 2、 I always take something to read when I go to the doctor’s ________ I have to wait. A． in caseB． so that C． in order D． as if C． if D． even though 8. 方式状语从句引导词有: as(如同 ), as if/though (好像)They are talking as if (as though) they were old friends.注意：注意：as， like 都表示“像” ，as 是连词 ， 后加句子like 是介词， 后加名词、 代词、 名词短语I work as others do .I work like others. 9.比较状语从句由as… as, not as/ so…as, than, the more… the moreHe ran as far as he harder you try, the better you will understand. 四. 状语从句的时态问题问题1：1、 The house could fall down soon if no one______ some quick repair work. A has doneB is doingdone 2、 It is almost five years _______ we saw each other last time. A. before B. since C. after D. when 在条件， 时间和让步从句中， 用一般现在时表示一般将来时， 用现在完成时表将来完成时， 用一般过去时表过去将来时。 在 since 引导的时间状语从句中， 动词一般都用一般过去时， 而主句常用现在完成时。C doesD had 五、 状语从句的倒装问题问题1：1、 So difficult _____ it to live in an English-speaking country that I determined to learn English. A. I have felt B. have I felt C. I did feel D. did I feel2、 Not until all the fish died in the river _____ how serious the pollution was. A. did the villagers realize B. the villagers realizedC. the villagers did realize D. didn’t the villagers realize 状语从句的倒装一般有下面几种情况： ① 否定词开头； ② so 加 adj. 开头； ③ as / though引导的让步状语从句。Hardly had he got to the station when the train sooner had he got to the station than the train as he is, he can speak seven foreign languages.
§ 1状语从句的种类 用来修饰谓语动词、其它动词、定语、状语或整个句子的从句叫做状语从句.状语从句可分为： 1.时间状语从句2.地点状语从句；3.原因状语从句；4.条件状语从句；5.目的状语从句；6.让步状语从句；7.比较状语从句；8.程度状语从句；9.方式状语从句；10.结果状语从句. §2状语从句的时态特点 一般情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”. 二 时间状语从句 §3时间状语从句（adverbial clause of time） 1.由when,while,as引导的时间状语从句. 【区别】when,while和as的区别：when引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词.并且when有时表示“就在那时”. While引导的从句的谓语动作必须是延续性的,并强调主句和从句的动作同时发生（或者相对应）.并且while有时还可以表示对比.例如： While my wife was reading the newspaper,I was watching TV.(was reading是延续性的动词,was reading和was watching同时发生) As表示“一边……一边”,as引导的动作是延续性的动作,一般用于主句和从句动作同时发生；as也可以强调“一先一后. As we was going out,it began to snow.当我们出门时,开始下雪了.（as强调句中两个动作紧接着先后发生,而不强调开始下雪的特定时间） 2.由before和after引导的时间状语从句.注意before引导的从句不再用否定式的谓语,并且当before引导的从句位于主句之后,有时译成“就,才”.还要注意主句和从句之间的时间关系.当主句用将来时,从句总是用现在时；如果before引导的从句谓语用的是过去时,则主句动词多用过去完成时,这样以便体现动作发生的先后.After表示主句动作发生在从句动作之后.主句和从句的动作的时间关系正好与before引导的从句相反. 3.由till或until引导的时间状语从句.till和until一般情况下两者可以互换,但是在强调句型中多用until.并且要注意的是：如果主句中的谓语动词是瞬时动词时,必须用否定形式；如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同.例如： 4.由since引导的时间状语从句.since引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词.一般情况下,从句谓语动词用一般过去时,而主句的谓语动词用现在完成时.但在It is ＋时间＋since从句的句型中,主句多用一般现在时.例如： 5.由as soon as,immediately,directly,instantly,the moment,the instant,the minute,等引导的时间状语从句.这些连词都表示“一……就”. 【注意】hardly(scarcely,rarely)…when / before,no sooner…than相当于as soon as之意.主句用过去完成时,从句用一般过去时.当hardly,scarcely,rarely和no sooner位于句首时,主句应用倒装语序. 6.由by the time引导的时间状语从句.注意时态的变化：在一般情况下,如果从句的谓语动词用一般过去时,主句的谓语动词用过去完成时；如果主句的谓语动词用一般现在时,主句的谓语动词用将来完成时. 7.由each time,every time和whenever引导的时间状语从句. 8.由as long as和so long as引导的时间状语从句.这两个连词表示“有多久……就多久”. 三 地点状语从句 §4地点状语从句 (adverbial clause of place) 地点状语从句一般由连接副词where,wherever等引导,已经形成了固定的句型,例如： 句型1：Where＋地点从句,（there）＋主句. 【注意】此句型通常译成“哪里……哪里就……”；主句在从句后面时,there可用可不用；如果主句在从句的前面时,一般都不用there. 句型2：Anywhere/ wherever＋地点从句,＋主句. 状语从句是句子的状语由一个从句充当,来修饰主句中的动词,形容词或副词等.状语从句都由从属连词引导,与主句连接,放在句末时,一般不在前面加逗号. 状语从句根据它表示的意思可分为时间,原因,条件,比较,结果,目的等类. 时间状语从句：是由when,as,while,after,before,since,until,as soon as 等从属连词引导的状语从句. 时间状语从句中的谓语动词不能用一般将来时,只能用一般现在时表示将来发生的动作或存在的状态. 原因状语从句：because,since,as和for都表示原因.because语势最强,回答why提出的问题,用来说明人所不知的原因.当能够很明显的看出原因或人们已知原因,就用as或since. 由because引导的从句如果放在句末,且前面有逗号,则可以用for来代替.但如果不是说明直接原因,而是多种情况加以推断,就只能用for. 目的状语从句：表示目的状语的从句可以由in order that,so that,等词引导. 结果状语从句：结果状语从句常由so...that 或 such...that引导,要掌握和区分这两个句型, 首先要了解so和such后面分别跟什么词.such是形容词,修饰名词或名词词组,so是副词,只能修 饰形容词或副词.so 还可与表示数量的形容词many,few,much,little连用,形成固定搭配. 如：The box is so heavy that I can't carry it. 让步状语从句：是由though,although 引导的状语从句.
相信很多高中的同学们都傻傻分不清楚状语从句的用法，经常在考试中失分，接下来我给大家带来高中英语状语从句，希望能帮到大家。
高中英语状语从句
一、时间状语从句
1、when的用法
(1)when既可引导一个持续性动作，也可引导一个短暂性动作，可用于表示主句和从句动作同时发生或从句动作先于主句动作，有时还可表示从句动作后于主句，意为“当。。。时候”。
(2)when在be about to do。。。when。。。，be doing。。。when。。。，had done。。。when。。。，be on one’s way。。。when。。。，be on the point of doing。。。when。。。等结构中，作“那时突然”讲。
(3)when “既然、鉴于;尽管，虽然(位于主句之后);如果”
2、while的用法
(1)表示“当。。。时候”，引导的动作必须是延续性的。
(2)用作并列连词，表示相对关系“然而”。
(3)引导让步状语从句，相当于although,意为“虽然”，位于主句前。
(4)引导条件状语从句，相当于as/so long as，意为“只要”。
3、as 的用法
(1)表示“当。。。时候”，强调同时发生，不指先后。
(2)说明两种正在发展或变化的情况，表示“随着”，表示时间的推移。
(3)表示“一边。。。一边。。。”。
(4)强调两个动作紧接着发生。
(5)表示“虽然，尽管”。
(6)其他含义“正如，正像”，“作为”，“由于，因为”。
4、before的用法
(1)一般意为“在。。。之前”“。。。才”，“。。。就”“还没有。。。”“免得”“不知不觉”“宁可，宁愿”，“否则，要不然”。
(2)It + will be/was + 时间段+before+一般现在时/一般过去时。在肯定句中，意为“多长时间之后才”;在否定句中，意为“用不了多长时间就”。
5、until和till
(1)与肯定句连用，必须是延续性动词。
(2)与否定句连用，必须是非延续性动词，表示“直到。。。才，在。。。之前不。。。”。
注意：not until可用于强调句和倒装句
强调句：It is/was not until…that…倒装句：not until 放句首时，主句要部分倒装。
6、since的用法
(1)since后是非延续性动词，时间起点从该动作发生算起，意为“做某事多久了”;since后是延续性动词，时间起点从该动作结束算起，意为“不做某事已有多长时间”。
(2)It is/has been +时间段+since+一般过去时
7、表示“一......就......”的句型
(1)as soon as, once,immediately,directly,instantly,the moment,the minute等引导的从句都表示从句的动作一发生，主句的动作随即发生，常译作“一。。。就。。。”，这类从句中，经常用一般现在时态代替将来时态。
(2)on doing sth.或“on one’s+名词”作时间状语。
8、有些名词和副词可以起连接词的作用，引导时间状语从句。
注意：时间状语从句中不用将来时态。若要表示将来时间，可用一般现在时态表示。但when引导名词性从句时，从句中要使用将来时。
二、地点状语从句
1、地点状语从句由where,wherever引导。
注意：where与where的区别：Where表特定的地点，而wherever表示非特定的地点。
Wherever=to/at any place where
2、地点状语从句与定语从句的区别
Where引导定语从句时，从句前应有一个表示地点的名词作先行词;而状语从句前则无先行词。
三、原因状语从句
引导词：because, since,as, now that, not that…, but that…, seeing that, considering that, in that
注意：for也可以表示原因，属并列连词，但不是说明直接原因，而是对某种情况加以推断，用于表示补充说明理由。
四、目的状语从句
引导词：so, so that, in order that, that, to the end that(以便，为了)，in case,for fear that,lest(以免，以防)，
目的状语从句中通常有情态动词can,could,may,might,should,would等。
注意：1、in case 还可表示“万一，假如”。
2、目的状语从句可以用so as to, in order to 等不定式代替，但主句和从句的主语必须一致。
五、结果状语从句
引导词：so...that(如此。。。以至于。。。)，such...that(如此。。。以至于。。。)，so that(结果是)，with the result that(所以，结果是)
注意：(1)so...that与such...that的区别
So+形容词such+a/an+形容词+单数名词
So+形容词+a/an+单数名词such+形容词+复数名词
So+副词such+形容词+不可数名词
So many/few+复数名词
So much/little+不可数名词
(2)so that引导的目的状语从句与so that 引导的结果状语从句
目的状语从句一般使用情态动词，结果状语从句一般不使用情态动词;
结果状语从句常常用逗号与主句分开。
(3)so...that与so...as;such...that与such...as
So...that/such...that为结果状语从句;so...as/such...as为定语从句。
六、条件状语从句
引导词：if(如果)，unless(除非)，if only(只要，但愿)，only if(只有)，in case(万一)，suppose/supposing(that)
(假设)，provided/providing(that)(只要，假若)，on condition that(要是，在。。。条件下)，so/as long as(只要)，(let's/let us)say(假设)
七、方式状语从句
引导词：as(像。。。一样，正如。。。)，as if/as though(好像，宛如)
注意：1、固定句型A is to B what C is to D.意为“A对B而言正如C对D一样”。
2、as if, as though引导的从句若与事实相反，用虚拟语气;若与事实相符，不用虚拟语气。
八、让步状语从句
引导词：though/although/as(虽然，尽管)，even if/though(即使，尽管)，whether/no matter whether...or(not)
(不管。。。是否，不管是。。。还是)wh-ever/no matter wh-(无论。。。)
注意：(1)though,although,as的区别
A、Though,although的主句中可以用yet, still, nevertheless,但不可使用but。
B、though引导的从句可以倒装，也可以不倒装;as引导的从句必须倒装;although引导的从句不能倒装。
其结构为：形容词/分词/副词/动词原形/名词(无冠词)+as/though+主语+谓语……
(2)though可用作副词，放在句末，意为“不过，但是”。Although无此用法。
(3)某些短语也引导让步的从句或短语，意为“尽管”，如：in spite of the fact that, despite the fact that, regardless of(the fact that)
九、比较状语从句
引导词：as...as(和。。。一样)，not as/so...as(和。。。不一样)，than(比)，the more...the more...(越。。。越。。。)
十、状语从句中的省略问题
1、在状语从句中如果主语与主句的主语一致，同时从句中又含有系动词be，则通常可省去从句的主语和系动词be,留下其余部分。
2、若状语从句中主语是it, 动词是系动词be, 则通常可省去主语it及系动词be,留下其余部分。
高中英语名词性从句
一、that 从句
1、主语从句
(1)that从句作主语时，常用it作形式主语，常见的句型有：
It+be+形容词(obvious, true, natural, surprising,good,wonderful,funny,possible,likely,certain,probable,etc.)+that从句
It+be+名词词组(no wonder, an honor, a good thing, a pity, no surprise, etc.)+that从句
It+be+过去分词(said, reported, thought, expected, decided, announced, arranged, etc.)+that从句
(2)that可以省略，但that从句位于句首时，that不能省略。
2、宾语从句
(1)常见的可以接that从句作宾语的动词有see, say, know, imagine, discover, believe, tell, show, think, consider, be sure, be afraid等。在可以接复合宾语的动词之后，如think, make, consider等，可以用it作形式宾语。
(2)That从句一般不能充当介词宾语，偶尔可作except, in 的宾语。
3、表语从句(that不可省略)
4、同位语从句
连词that引导同位语从句时，应在某些抽象名词之后，如：fact, hope, desire, thought, suggestion, idea, news, problem, possibility等，对前面的名词起补充说明的作用，that在从句中不担当任何成分，不能省略。
二、whether/if从句
1、在表语从句和同位语从句中只能用whether不能用if;当主语从句放于句首时，只能用whether不用if;当it作形式主语，主语从句放在句末时用whether或if均可;discuss后引导宾语从句时，必须用whether。
2、在宾语从句中：
(1)及物动词后：whether从句中不能有否定式，宾语从句为否定句时用if;if不能与or not连用，但可以用whether or not;whether后可以加不定式。
(2)介词后：只能用whether,不用if。
三、特殊疑问词引导的从句
1、主语从句：特殊疑问词引导主语从句时，常用it作形式主语。
2、宾语从句
(1)常见的能接特殊疑问词引导的宾语从句的动词有see, tell, ask, answer, know, decide, find out, imagine, suggest, doubt, wonder, show, discuss, understand, inform, advise等。
(2)作介词宾语。
3、同位语从句、表语从句
四、名词性关系从句
What=the thing(s) which/that, whoever=anyone who, whichever=anyone/anything that, whatever=anything that, where=the place where, when=the time when
五、名词性从句的几个难点
(一)that不可省略的情况
1、主语从句，that从句置于句首时;
2、当一个句子有两个或多个并列的宾语从句时，引导第二和以后几个从句的that不可省略;
3、由it作形式宾语时，that引导的宾语从句中，that不可以省略。
(二)wh-ever与no matter wh-的用法区别
Wh-ever既可引导名词性从句，又可引导让步状语从句;而no matter wh-只能引导让步状语从句。
(三)as if/though, because, why可以引导表语从句
注意：because引导的表语从句，主语不能是reason或cause,而且since,as不能引导表语从句。
(四)that引导的同位语从句与关系代词that引导的定语从句的区别
That引导的同位语从句成分是完整的，that在从句中不担当任何成分;that引导的定语从句成分是残缺的，that在从句中充当主语、宾语或表语。
初中英语宾语从句讲解ppt
要想学好英语，就必须学好英语知识点，那么初中英语宾语从句知识点有哪些呢?以下是我分享给大家的初中英语宾语从句知识点，希望可以帮到你! 初中英语宾语从句知识点 一、.引导词 1.从句为陈述句，常选择引导词that，that引导宾语从句无意义，不充当句子成分常省略。例句：He told us (that) they would help us through the whole work. 2.从句为一般疑问句，常选择引导词if或whether，表示“是否”。在 whether … or not 结构中不能用 if 替换。例句：I don’t know if there will be a bus any more. 3. 从句为特殊疑问句，常选择what,when,where,which,who,how等的疑问代词、副词作引导词。 例句：He didn’t tell me when we should meet again. 二、判断时态情况： 1.主句是一般现在时，从句可以为各种时态。 2.主句是一般过去时，从句要用相应过去时态。 注意：从句描绘客观事实、真理、自然现象等，从句时态不受主句时态限制，仍用一般现在时。 例句：He answered that he was listening to me. Father told me that practice makes perfect . 三、宾语从句的语序要用陈述句语序 陈述句语序，就是主语在前，谓语动词在后。 错误: He is wondering when can he finish this difficult job. 正确: He is wondering when he can finish this difficult job. 注意：宾语从句的否定转移 主句的谓语动词是think,believe,imagine,suppose,consider,expect,fancy,guess等,并且主句的主语是第一人称而且为一般现在时,从句的否定词一般要转移到主句上来,其反义疑问句一般与宾语从句一致. 例如; I don’t think he will come to my party.而不能说成I think he won’t come to my party. 初中英语宾语从句知识点常见考法 对于宾语从句的考查，多以单选的形式考查学生灵活运用的能力。一般情况下，常从引导词的选择、时态的一致性及从句的陈述语序方面考查。 典型例题：Please tell me ______ last year. does your sister work B where did your sister work C .where your sister works D where your sister worked 解析：本题考查对宾语从句的掌握。宾语从句要用陈述语序，所以排除A和 B;last year 表示过去时 ，所以排除 C 。 答案：D 误区提醒 宾语从句的语序要用陈述句语序 ，但要注意当疑问词为主语时，句式为：疑问词+谓语+其他 ，问句和陈述句语序一样。 典型例题：I didn't know ? A. What wrong was with her was wrong with her C .what wrong is with her is wrong with her 解析：主句是一般过去时，从句要用相应过去时态，所以排除C和D;在what was wrong with her中，what作主语，所以问句本身又是陈述句语序，不用变化。 答案： B 学好初中英语的建议 积累词汇 如果你是学生，可以通过英语课程，让老师帮助你了解英语的基础知识和思维方式。如果你是自学者，可以通过网络视频，根据视频上的内容了解英语的基础知识等。并且需要购买一本中英的英语词典，让你在学习英语的前期掌握足够的英语词汇。 学习语法 语法是语言的“骨架”，是词形变化规则和组词成句规则的总和，也是研究词的结构、用词规则、组合词语、句子结构等一系列规律的专门科学。具有概括性、生成性、稳定性 和系统性的特点。学习语法的目的，是为了可以更好地进行听说读写等语言实践活动。也就是说，通过对语法规则规律的掌握，减少在语言实践练习中的盲目性，提高语言的准确性。学习语法可以通过课本、书籍、网络等方法加强练习。 多读、多背、多写 学好英语，还要有坚持不懈的精神，不经历背诵大量文章，写大量东西，听大量文章(读报、听广播、看外语电影、听外语讲座、读书籍)是根本不可能达到目的的，因为学习语言需要对我们的各种感观进行刺激，每天至少看 60-120分钟的英语，早晨和晚上是学英语的最好时间。 勇于交流 前面3点可以让你很好的读和写了，但是只会读和写对于学习一门语言来说是远远不够的，我们还要学会怎样与人交流。敢于开口说英语，不要怕犯错误，人人都会犯错，这是在所难免的，加强交际训练，为自己提供一个英语环境，只有多交流，才能把口语说的很流利。 猜你喜欢： 1. 初中英语重点知识点的总结 2. 初三英语重点知识点的归纳 3. 初中必备的英语知识点总结 4. 初二英语重点语法知识点归纳 5. 初三英语必备的语法知识点
初中英语时间状语从句讲解
状语从句
状语从句在复合句中作状语，修饰动词、形容词或副词等。状语从句可以表示时间、条件、原因、地点、目的、结果、让步、方式、比较等意义。
各类状语从句连接词（短语）
时间 when, while, as, as soon as, since, until, after, before
条件 If, unless
原因 As, because, since
地点 Where
目的. So that, in order that
结果 So that, so…that, such…that
让步 though, although, even if, however
方式 As
比较 than, (not)as…as
时间状语从句：
Whenever he comes, he brings a friend. 他每次来都带个朋友。
条件状语从句：
As long as I am alive, I will go on studying. 只要我活着， 我就要学习。
原因状语从句：
Since we live near the sea, we enjoy nice weather.由于我们住在海边，能享受到好的天气。
地点状语从句：
Put it where we can all see it.把它放在我们都能看到的位置。
目的状语从句：
Finish this so that you can start another.把这个做完，你可以开始另一个。
结果状语从句：
He was so angry that he couldn’t say a word. 他气得说不出话了。
让步状语从句：
Though he is in poor health, he works hard.虽然他身体不好，但是他工作很努力。
方式状语从句：
Students do as the teachers say.学生们按照老师说的去做。
比较状语从句：
The work isn’t as easy as I thought.这项工作比我想象得难。
状语从句是英语语法中的常用句型语法，那么大家是否清楚什么是状语从句呢?下面就是我给大家带来的初中英语状语从句详细解析，希望能帮助到大家!
状语从句详细解析
一、什么是状语、状语从句?
状语：是用来修饰动词、形容词、副词或全句用的。
eg：He works hard! (他努力工作)中的hard。
状语的位置：
修饰形容词或副词的状语放在被修饰语之前。
eg：The Summer Palace is very beautiful.颐和园非常美丽。
(very 为状语，修饰形容词 beautiful，放在 beautiful 之前)。
修饰动词的状语有的放在动词前，有的放在动词之后。
如果动词有宾语，状语一般须放在宾语之后。
eg： I He often came here to see me.他经常到这里来看我。(often 为状语，修饰动词came，放在前面)。
I know him well.我十分了解他。(well为状语，修饰动词 know，放在 know 之后)。
状语从句：用一个 句子 (从句)来作另一个句子(主句)的状语，用作状语的句子就叫作状语从句。作什么样的状语就叫什么类型的状语从句。例如：条件状语从句就是用一个句子来作条件状语。
二、状语从句的分类。
(1)时间状语从句
凡是从句都必须有引导词，引导时间状语从句的词有when，before，after，until，as soon as，while 等，具体用法如下：
1. when 意为“当……时”，引导时间状语从句，表示主句的动作和从句的动作同时或先后发生。
eg: I feel very happy when you come to see me.
When you are crossing the street，you must be careful.
when引导的时间状语从句，when的从句可以用延续性动词，也可以用瞬间动词。
eg：He was working at the table when I went in. 。
Someone knocked at the door when I was sleeping.
I will visit my good friend when I have time.
注：when也可以作并列连词，表示一个动词正在进行的时候，突然间发生了另外一件事。
eg: I was fishing by the river，when someone called for help.
We were working in the chemistry lab，when the lights went out.
2. before 意为“在……之前”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。 eg: We cleaned the classroom before we left school yesterday.
He had been a cook before he went to college .
after 意为“在……之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。
eg: After you use plastic bags，you mustn't throw them about.
He called me after he had finished his work.
注：若主句和从句两个动作发生的先后顺序十分接近，那么也可以不用完成时态，如上面的 第二句可改成：He called me after he finished his work.
3. since引导的时间状语从句，译为“自从……”，主句常用现在完成时，从句常用一般过去时。
eg: I have taught English, since I came to Shenzhen.
注：常用句型：It is +时间段+since从句 译为：自从……有多长时间了。
eg. It is six years since she graduated from the university.
4. until 意为“直到……时”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。
当主句的谓语动词是持续性动词时，主句常用肯定形式;当主句的谓语动词是非持续性动词时，从句常用否定形式，not…until… 意为“直到……才……”，这时的until可以用before 来替换。
eg：I'll stay here until you come back.
我会呆在这里，直到你回来。 (stay表示的 动作可以持续)
He didn't go to bed until he finished his homework.
他直到做完作业才睡觉。(go to bed 表示的动作不能持续)
5. as soon as 意为“一……就……”，表示从句的动作一发生，主句的动作马上就发生。
eg：I'll tell him about it as soon as he comes back.
6. while引导的时间状语从句，常译为“与……同时，在……期间”，while的从句中常用延续性动词或表示状态的词。
eg. They rushed in while we were discussing problems.
Father was cleaning the car while I was playing computer games.
注：while也可以作并列连词，表转折的关系，相当于but，译为“然而”。
eg. I like listening to music，while my brother likes doing sports.
7. till和until引导的时间状语从句，译为“直到……为止”，not … till / until引导的时间状语从句，译为“直到……才”。前者强调主句动作的结束，用延续性动词，后者强调主句动作的开始，用瞬间动词。
eg. I will wait for my friend until / till he comes. 我要一直等到我朋友来。
We won't start our discussion until / till he comes.
我们要等到他来了，再开始我们的讨论。
(2)条件状语从句
1.条件状语从句通常由if, unless引导。
eg：What shall we do if it snows tomorrow?
Don’t leave the building unless I tell you to.
2.在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。(主将从现)
eg：I’ll help you with your English if I am free tomorrow.
He won’t be late unless he is ill.
3.“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带有条件状语从句的复合句。
eg：Hurry up, or you’ll be late.=If you don’t hurry up, you’ll be late.
Study hard and you will pass the exam.
=If you study hard, you will pass the exam.
(3) 原因状语从句
1.原因状语从句通常由because, since, as引导。
eg：He didn’t come to school because he was ill.
As it is raining, we shall not go the zoo.
Since you can’t answer the question, I’ll ask someone else.
2. because表示直接原因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。As和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。
eg：------Why aren’t going there? ------Because I don’t want to.
As he has no car, he can’t get there easily.
3. because和so不能同用在一个句子里。
For 语气最弱，它所引导的分句必须放主句后面，引补充说明作用。
eg：Put on more clothes, for it's cold outside.
注：because, since, as, for 的区别
语气 位置 意义
because 最强 前或后 “原因”;表客观因果关系;回答“”
as 较强 前 “由于”;把众人所知的事实当作理由
since 较弱 前 “既然”;就对方陈述的事实作为理由
for 最弱 后 “理由”;对某一事实进行推断的理由
(4)地点状语从句
常用where(哪里)和wherever(无论哪里)
eg. Where there is a will，there is a way. 有志者，事竟成。
We will go wherever the motherland need us most. 我们要到祖国最需要的地方去。
一、when“当……时”，引导时间状语从句时，从句用于表示主句动作发生的特定时间。如：The days get longer when spring comes. = When spring comes, the days get longer.春天到来时，白天变得更长了。二、before“在……之前”，引导时间状语从句时，表示主句动作发生在从句动作之前。如：Close the door before you leave the room.离开房间前关上门。三、after“在……之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。如：I went to school after I finished my breakfast.吃完早饭后我就去上学了。四、as soon as“一……就……”，引导时间状语从句时，表示主句动作紧接着从句动作发生。如：I’ll call you as soon as I get home.我一到家就给你打电话。五、until, till“直到”，引导时间状语从句。当主句谓语动词是延续性动词时，主句常用肯定形式；当主句谓语动词是非延续性动词时，主句要用否定形式，即“not…until/till…”意为“直到……才……”。如：I’ll wait here until/till the rain stops.我将在这里等着，直到雨停。You can’t go home until/till you finish your work.直到你完成你的工作，你才能回家。下面再向大家透露点儿内幕消息，状语从句的两手绝活——时态的呼应和从句的位置。请看：一、时态呼应一般来讲，复合句都要遵循主、从句时态呼应规律，状语从句也不例外。即主句用现在时，从句也用现在时；主句用过去时，从句也用过去的某种时态。如：Be careful when you cross the road.过马路时要小心。You must see the doctor if you are ill.如果你生病了，你必须去看医生。主句是一般过去时，从句也要用一般过去时。如：When he was seven years old, he could swim.当他七岁时就会游泳。She turned off the light before she left the office.她离开办公室前就关了灯。二、主从句的位置。大多数情况下，从句可以位于主句之前，也可以位于主句之后。不过从句在前时，主从句之间必须用逗号隔开。如：Please tell me when he comes back. = When he comes back, please tell me.
用表示时间的连词连接一个句子作状语，这样的主从复合句就是时间状语从句。连接时间状语从句的连接词有：when, before, after, while, as soon as, until, since...... 如果主句是一般将来时，从句只能用一般现在时表示将来意义。（即老师讲的“主将从现”）还有嘛，就是要学会区分一些从句连接词的区别，如：when, while和as的区别。when引导的从句的谓语动词可以是延续性的动词，又可以是短暂性动词。While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。As表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。等等啦~~祝学习天天向上，老师一般会为你解说区分得很详细的，多读，语感有时候能解决很多语法上难以理解的问题~~~~~~
初中英语条件状语从句讲解
状语从句
状语从句在复合句中作状语，修饰动词、形容词或副词等。状语从句可以表示时间、条件、原因、地点、目的、结果、让步、方式、比较等意义。
各类状语从句连接词（短语）
时间 when, while, as, as soon as, since, until, after, before
条件 If, unless
原因 As, because, since
地点 Where
目的. So that, in order that
结果 So that, so…that, such…that
让步 though, although, even if, however
方式 As
比较 than, (not)as…as
时间状语从句：
Whenever he comes, he brings a friend. 他每次来都带个朋友。
条件状语从句：
As long as I am alive, I will go on studying. 只要我活着， 我就要学习。
原因状语从句：
Since we live near the sea, we enjoy nice weather.由于我们住在海边，能享受到好的天气。
地点状语从句：
Put it where we can all see it.把它放在我们都能看到的位置。
目的状语从句：
Finish this so that you can start another.把这个做完，你可以开始另一个。
结果状语从句：
He was so angry that he couldn’t say a word. 他气得说不出话了。
让步状语从句：
Though he is in poor health, he works hard.虽然他身体不好，但是他工作很努力。
方式状语从句：
Students do as the teachers say.学生们按照老师说的去做。
比较状语从句：
The work isn’t as easy as I thought.这项工作比我想象得难。
在句子中做条件状语的从句称为条件状语从句。可置于句首、句尾，有时还可置于主语和谓语之间。引导条件状语从句的连接词有：if ,unless,as/so long as等 引导的条件状语从句 表示在某种条件下某事很可能发生。 If we pay much attention to the earth, we'll have a better world. 如果我们多关爱地球，就会拥有一个更美好的世界 If it rains tomorrow, what shall we do? 如果明天下雨，我们怎么办？ 注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时。What would happen if there were no water ?如果没有水会怎样？引导的条件状语从句unless的意思是如果不，除非。可与if...not互换。You will fail in English unless you work hard.你英语考试会不及格的，除非你更加努力。 /so long as引导的条件状语从句 as /so long as意思是“只要”So long as you're happy,i will be happy.只要你高兴，我就高兴。引导的条件状语从句once引导的条件状语从句，意为“一旦...，就”，从句可置于主句前或后Once you begin,never stop.一旦开始，就绝不要停止Maths is easy to learn once you understand the rules.一旦你理解了规则，数学就不难学了。提示：在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时。If the weather is bad next week, we'll put off the climbing.如果下周天气不好，我们将推迟爬山。Father told me if i worked hard he would buy me a gift.爸爸告诉我，如果我努力学习，他会给我买一份礼物。
条件状语从句初中阶段需要了解其引导词为if和unless(=if not),时态上要求“主将从现"，如：If it doesn't rain tomorrow, I will go sightseeing with my family. 如果明天不下雨我将与家人去观光。 主将从现的现不仅指的是一般现在时，还包括现在完成时；另外主将的将还包括祈使句或带有情态动词的句子例如：you can't watch TV unless you have finished your homework。注意 祈使句+ and / or 可以转换成条件状语从句例如：Hurry up, or you will be late =if you don't hurry up ,you will be up, and you will not be late\ be on time=if you hurry up, you'll be on time.
状语从句是英语语法中的常用句型语法，那么大家是否清楚什么是状语从句呢?下面就是我给大家带来的初中英语状语从句详细解析，希望能帮助到大家!
状语从句详细解析
一、什么是状语、状语从句?
状语：是用来修饰动词、形容词、副词或全句用的。
eg：He works hard! (他努力工作)中的hard。
状语的位置：
修饰形容词或副词的状语放在被修饰语之前。
eg：The Summer Palace is very beautiful.颐和园非常美丽。
(very 为状语，修饰形容词 beautiful，放在 beautiful 之前)。
修饰动词的状语有的放在动词前，有的放在动词之后。
如果动词有宾语，状语一般须放在宾语之后。
eg： I He often came here to see me.他经常到这里来看我。(often 为状语，修饰动词came，放在前面)。
I know him well.我十分了解他。(well为状语，修饰动词 know，放在 know 之后)。
状语从句：用一个 句子 (从句)来作另一个句子(主句)的状语，用作状语的句子就叫作状语从句。作什么样的状语就叫什么类型的状语从句。例如：条件状语从句就是用一个句子来作条件状语。
二、状语从句的分类。
(1)时间状语从句
凡是从句都必须有引导词，引导时间状语从句的词有when，before，after，until，as soon as，while 等，具体用法如下：
1. when 意为“当……时”，引导时间状语从句，表示主句的动作和从句的动作同时或先后发生。
eg: I feel very happy when you come to see me.
When you are crossing the street，you must be careful.
when引导的时间状语从句，when的从句可以用延续性动词，也可以用瞬间动词。
eg：He was working at the table when I went in. 。
Someone knocked at the door when I was sleeping.
I will visit my good friend when I have time.
注：when也可以作并列连词，表示一个动词正在进行的时候，突然间发生了另外一件事。
eg: I was fishing by the river，when someone called for help.
We were working in the chemistry lab，when the lights went out.
2. before 意为“在……之前”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。 eg: We cleaned the classroom before we left school yesterday.
He had been a cook before he went to college .
after 意为“在……之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。
eg: After you use plastic bags，you mustn't throw them about.
He called me after he had finished his work.
注：若主句和从句两个动作发生的先后顺序十分接近，那么也可以不用完成时态，如上面的 第二句可改成：He called me after he finished his work.
3. since引导的时间状语从句，译为“自从……”，主句常用现在完成时，从句常用一般过去时。
eg: I have taught English, since I came to Shenzhen.
注：常用句型：It is +时间段+since从句 译为：自从……有多长时间了。
eg. It is six years since she graduated from the university.
4. until 意为“直到……时”，引导时间状语从句时，表示主句的动作发生在从句的动作之前。
当主句的谓语动词是持续性动词时，主句常用肯定形式;当主句的谓语动词是非持续性动词时，从句常用否定形式，not…until… 意为“直到……才……”，这时的until可以用before 来替换。
eg：I'll stay here until you come back.
我会呆在这里，直到你回来。 (stay表示的 动作可以持续)
He didn't go to bed until he finished his homework.
他直到做完作业才睡觉。(go to bed 表示的动作不能持续)
5. as soon as 意为“一……就……”，表示从句的动作一发生，主句的动作马上就发生。
eg：I'll tell him about it as soon as he comes back.
6. while引导的时间状语从句，常译为“与……同时，在……期间”，while的从句中常用延续性动词或表示状态的词。
eg. They rushed in while we were discussing problems.
Father was cleaning the car while I was playing computer games.
注：while也可以作并列连词，表转折的关系，相当于but，译为“然而”。
eg. I like listening to music，while my brother likes doing sports.
7. till和until引导的时间状语从句，译为“直到……为止”，not … till / until引导的时间状语从句，译为“直到……才”。前者强调主句动作的结束，用延续性动词，后者强调主句动作的开始，用瞬间动词。
eg. I will wait for my friend until / till he comes. 我要一直等到我朋友来。
We won't start our discussion until / till he comes.
我们要等到他来了，再开始我们的讨论。
(2)条件状语从句
1.条件状语从句通常由if, unless引导。
eg：What shall we do if it snows tomorrow?
Don’t leave the building unless I tell you to.
2.在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。(主将从现)
eg：I’ll help you with your English if I am free tomorrow.
He won’t be late unless he is ill.
3.“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带有条件状语从句的复合句。
eg：Hurry up, or you’ll be late.=If you don’t hurry up, you’ll be late.
Study hard and you will pass the exam.
=If you study hard, you will pass the exam.
(3) 原因状语从句
1.原因状语从句通常由because, since, as引导。
eg：He didn’t come to school because he was ill.
As it is raining, we shall not go the zoo.
Since you can’t answer the question, I’ll ask someone else.
2. because表示直接原因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。As和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。
eg：------Why aren’t going there? ------Because I don’t want to.
As he has no car, he can’t get there easily.
3. because和so不能同用在一个句子里。
For 语气最弱，它所引导的分句必须放主句后面，引补充说明作用。
eg：Put on more clothes, for it's cold outside.
注：because, since, as, for 的区别
语气 位置 意义
because 最强 前或后 “原因”;表客观因果关系;回答“”
as 较强 前 “由于”;把众人所知的事实当作理由
since 较弱 前 “既然”;就对方陈述的事实作为理由
for 最弱 后 “理由”;对某一事实进行推断的理由
(4)地点状语从句
常用where(哪里)和wherever(无论哪里)
eg. Where there is a will，there is a way. 有志者，事竟成。
We will go wherever the motherland need us most. 我们要到祖国最需要的地方去。
