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。
知识梳理：提纲挈领，抓住重点和难点！
各类状语从句连接词（短语）一览表：
时间 when, while, as, as soon as, since, until, after, before
条件 If, unle
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。
例题解析：举一反三，学的更轻松！
易混引导词while, when, as的区别：
when既可以指"时间点",与瞬间动词连用，也可以指"时间段"，与延续性动词连用（=while）。如：
When he came in, his mother was cooking.
When (While) we were at school, we went to the library every day.
While表示时间段,因此，while 从句的谓语动词要用延续性动词。如：
Please don't talk so loud while others are working.
As与when用法相似，但着重强调主句动作与从句动作同时发生，有"随着……"或"一边……一边……"之意。如：
As you get older, you get more knowledge.随着年龄的增长，你获得的知识就越多。
2．Because,as,since 的区别：
Because用于表示直接原因,回答why提出的问题，语气最强；As用于说明原因, 着重点在主句，常译成"由于"；since表示显然的或已知的理由或事实，常译成"既然"。如：
Water is very important because we can't live without it.
He didn't come yesterday as his mother was ill.
I'll do it for you since you are busy.
3．such…that, so…that, so that 引导结果状语从句的区别：
such是形容词，修饰名词; so 是副词，修饰形容词或副词。其结构如下：
1) such + a (n)+ 形容词+单数可数名词+that……
2) such+形容词+复数可数名词+that ……
3) such +形容词+不可数名词+that……。如：
This was such a good film that I went to see it several times.
It was such good books that they sell well.
It was such bad weather that I had to stay at home.
He spoke so fast that I couldn't follow him.
He is such a lovely boy that we all like him.
=He is so lovely a boy that we all like him.
注：在"形容词+可数名词复数/不可数名词"结构中，当名词前有many, much, few, little表示数量的多少时，名词前用so。如：
She made so many mistakes that she didn't pa the exam.
练习与巩固：熟能生巧，取得好成绩！ 状语从句答案
1.参考答案及解析
1.A.which用作关系代词，在定语从句中作主语。
2．C."和谁讲话”要说speak to sb.本题全句应为Do you know the man whom I spoke to.。whom是关系代词，作介词to的宾语，可以省略。
3.D.where是关系副词，表示地点，在定语从句中作地点状语。 4.C.when是关系副词，表示时间，在定语从句中作时间状语。
5．A.which是关系代词，在从句中作forget的宾语。其他几个答案都不能作宾语。 6．C.解析同第5题。 7.A.解析见第3题。
8.A.本句话的先行词应该是films,因此，关系代词that是负数概念，其谓语动词应用复述的被动语态have been shown。如果句中的one前面使用了定冠词the，则the one应该视为先行词。 9.A.“谈到某事物”应说talk about sth.。about是介词，其后要用which作宾语，不能用that。
10.A.with which是"介词+关系代词"结构,常用来引导定语从句.with有"用"的意思,介词之后只能用which,不能用that.with which在定语从句中作状语,即he is writing with a pen.11.C.in front of which 即in front of a farmhouse.In front of which在从句中作状语.12.D.with whom引导定语从句.with whom放在从句中即为:my father works with the engineer.13.D.whose引导定语从句,在从句中作主语family的定语.14.A.that引导定语从句,因为先行词是all,所以只能选用that引导.15.D.the same„„..as是固定用法, as引导定语从句时,可以作主语,宾语或表语.在本句话中,as作从句的主语.16.D.such„„„ as是固定用法,as引导定语从句时,可以作主语,宾语或表语.在本题中,as作表语.
17.B.as作关系代词可以单独用来引导非限制性定语从句。这时as所指代的不是主句中某个名词，而往往指代整个主句的含义。as在从句中可以作主语、宾语。从句可放在主句后，也可置于主句前。在本句中,as作宾语.18.B.Li Ming enjoyed it very much是主句,with whom I went to the concert是定语从句.with whom放在从句中为:I went to the concert with Li Ming.19.C.as引导定语从句时通常构成such„as或the same„as固定搭配，其中such和same修饰其后的名词，as为关系代词，指代其前的名词引导定语从句。 as在从句中可以作主语、表语或宾语。Such修饰单数名词时,要用such a„„..,本题中such books, such直接修饰复数名词.20.B.things和persons是先行词.当定语从句要修饰的先行词是既表示人,又表示物的名词时,其关系代词要用that.21.D.who引导非限制性定语从句,who作从句的主语.22.C.two thirds of whom 即:two thirds of the 2,000 workers.23.D.先行词person后有两个定语从句,第一个从句省略了关系代词whom.因为, whom作从句中met的宾语,可以省略.第二个从句who could do it.who在从句中作主语,不可省略.24.A.whose title引导非限制性定语从句,whose title也可以说成the title of which 25.A.for which 引导定语从句,使用介词for,是来自于从句中的固定短语 be famous for "以„„..而闻名".26.C.当先行词被such修饰时,引导定语从句的关系代词要用as.As在本从句中作主语.27.A.两个先行词the day都是表示时间的名词,但第一个空白处要填的关系词在从句中作状语,因此要用关系副词when.第二个空白处要填的关系词在从句中作动词spent的宾语,因此要用关系代词which或that来引导定语从句.28.D.在way、distance、direction等词后的定语从句中，常用that来代替“in (或其他介词)+which”、when或where，而that常可省略。
29.D.for which在定语从句中作原因状语,可用why 来替代.30.B.which I have looked after 构成一个非限制性定语从句.31.A.The reason why„ was that„.已成为一种固定句型，这一句中的why和that不能随意换位，也不能将that改成because，尽管that这个词在译文中可能有 “因为”的含义。 32.B.非限制性定语从句常用which引导,which表示前句话的整个含义.33.A.解释见28题.34.D.主句中的two表明不能选A.从句中的are表明不能选B.both of which用来引导非限制性定语从句.35.C.as引导定语从句时通常构成such„as或the same„as固定搭配，其中such和same修饰其后的名词，as为关系代词，指代其前的名词引导定语从句。as在从句中可以作主语、表语或宾语。本题中as作从句的主语.36.B.非限制性定语从句常用which引导,which表示前句话的整个含义.37.D.38.D.解析见35题.39.A.he makes是定语从句, 从句前省略了关系代词that.40.B.which is a bad habit 非限制性定语从句.41.A.what happened是宾语从句.all 之后that he knew是定语从句.先行词是all,所以关系代词只能用that.42.D.years是表示时间的名词,用when引导定语从句,是因为when在从句中作时间状语.第二个空选用which,引导一个非限制性定语从句.43.C.本句话的定语从句是who own cars.其先行词是people,因此,定语从句的谓语动词要用复数的own。本句话主句的主语是The number of指“„..的数目”，是单数概念。因此，主句的谓语动词要用is。
44.D.that followed是定语从句，关系代词that在从句中作主语。 45.A.先行词gas被only修饰，关系代词要用that，而不用which。
46.B.through which引导定语从句，through which即through the hole,在定语从句中作状语。What引导的是see的宾语从句，并作从句的主语。
47.B.为便于理解，改写本句话：This is the school that some Germanfriends visited last week.不难看出，作表语的the school是先行词。that引导了定语从句，因为that同时又作visited的宾语，所以被省略了。其它选项结构不对。 48.A.解释见35题。
49.C.因为是two ballpens, 并且定语从句的谓语writes是单数概念。因此，C是正确选项。 50.B.本句话中，主句的主语是all,为抽象概念。因此，其谓语应用单数的has been。关系代词that引导定语从句，并在从从句中作主语。 被动语态：表示某件事被做。
be(注意时态变化）+动词的过去分词 例：Our homework shuold be done by ourselves.
(我们的作业应该被我们自己做。） 现在完成时：表示到目前为止已经做完。
have/has+动词的过去的分词 例：I have finished my homework. (我已经完成了我的作业。）
2.
3.被动语态
（一）答案
[参考答案]
4.BABCB
BDACB
ADDBA
CCABD 5.被动语态
（二）答案
参考答案：
1.1-5 B D D D C
2.1-6 B C B B C A
3.1-3 A B B
4.1-3 A B A
5.1-3 B D B 6.1-3 B A D 7.1-3 A B A 8.1-5 D B B C D 9.1-4 B A D D 10.1-3 B B A 11.1-3 B A C 12.1-3 D D B 13.1-3 B A A 14.1-4 B C B 15.1-4 B D A C 16.1-3 A B C 17.1-3 B C D 18.1-3 C C D 19.1-3 A C B
宾语从句定语从句（Attributive Clauses）在句中做定语，修饰一个名词或代词，被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。
关系代词有：who, whom, whose, that, which等。
关系副词有：when, where, why等。 18.1 关系代词引导的定语从句
关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。 1）who, whom, that 这些词代替的先行词是人的名词或代词，在从句中所起作用如下：
Is he the man who/that wants to see you? 他就是你想见的人吗？（who/that在从句中作主语）
He is the man whom/ that I saw yesterday.他就是我昨天见的那个人。（whom/that在从句中作宾语）
2) Whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换）, 例如：
They rushed over to help the man whose car had broken down.那人车坏了，大家都跑过去帮忙。
Please pa me the book whose (of which) cover is green.请递给我那本绿皮的书。
3）which, that 它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等，例如：
A prosperity which / that had never been seen before appears in the countryside.农村出现了前所未有的繁荣。（which / that在句中作宾语）
The package (which / that) you are carrying is about to come unwrapped.你拿的包快散了。(which / that在句中作宾语 18.2 关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。 1）when, where, why 关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用，例如：
There are occasions when (on which) one must yield.任何人都有不得不屈服的时候。
Beijing is the place where (in which) I was born.北京是我的出生地。
Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗？
2）that代替关系副词 that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略，例如：
His father died the year (that / when / in which) he was born.他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago.他不大可能找到他四十年前居住过的地方。
用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如：
This is the mountain village where I stayed last year. I'll never forget the days when I worked together with you.
在复合句中用作宾语的从句叫宾语从句。
1．语序
无论主句是陈述句还是疑问句，宾语从句都必须使用陈述语序，即“主句＋连词＋宾语从句（主语＋谓语＋„„）”句式。根据连接词在从句中所担任的不同成分，可分为以下四种：
1）连接词＋谓语。连接词在从句中作主语。常见的连接词有： who，what，which等。如：
Could you tell me who knows the answer，please？你能告诉我谁知道答案吗？
The small children don't know what is in their stockings．这些小孩子不知道袜子里有什么东西？
2）连接词＋名词＋谓语。连接词在从句中作主语的定语。常见的连接词有：whose，what，which，how many，how much等。如：
He asked whose handwriting was the best in our cla．他问我们班上谁的书法最好。
The teacher asked us how many people there were in the room．老师问我们房间里有多少人。
3）连接词＋主语＋谓语。连接词在从句中作宾语、状语或表语。常见的连接词有：who（m），what，which，how many，how much， when，why，how，where，if ／whether（在句中不充当任何成分）等。如：
He hasn't decided if he'll go on a trip to Wuxi．他还没决定是否去无锡旅行。
Could you tell me what I should do with the money ？你能告诉我我如何处理这笔钱吗？
4）连接词＋名词＋主语＋谓语。连接词在从句中作宾语或表语的定语。常见的连接词有：what，which，how many，how much，how等。如：
Do you know which cla he is in ？你知道他在哪个班吗？
She asked me if I knew whose pen it was．她问我是否知道这是谁的钢笔。
2．连接词
1）当由陈述句充当宾语从句时，用that引导，that无词义，在口语或非正式文体中常省略。如：
He said that he could finish his work before supper．他说他会在晚饭前完成工作。
2）当由一般疑问句充当宾语从句时，用if或whether引导，意为“是否”。如：
I don't know if ／whether he still lives here after so many years．我不知道这么多年后他是否还住在这儿。
但在下列情况下只能用whether：
①在具有选择意义，又有or或or not时，尤其是直接与or not连用时，往往用whether（if„or not也可以使用）。如：
Let me know whether ／if he will come or not．（＝Let me know whether or not he will come）让我知道他是否能来。
I don't know whether ／if he does any washing or not．（＝I don't know whether or not he does any washing．）我不知道他洗不洗衣服。
I wonder whether we stay or whether wego．我不知道我们是去还是留。
②在介词之后用whether。如：
I'm interested in whether he likes English．我关心的是他是否喜欢英语。
We're thinking about whether we can finish the work on time．我们正在考虑是否能按时完成这项工作。
I worry about whether I hurt her feelings．我担心是否伤了她的感情。
③在不定式前用whether。如：
He hasn't decided whether to visit the old man．他尚未决定是否拜访那位老人。
I don't know whether to go．我不知去否。
He hasn't decided whether to go by bus or by train．他还未决定是乘公共汽车去还是坐火车去。
④whether置于句首时，不能换用if。如：
Whether this is true or not，I can't say．这是否真的我说不上来。
⑤引导主语从句和表语从句时宜用whether。如：
Whether she will come or not is still a question．她是否能来还是个问题。
The question is whether we can catch the bus．问题是我们能否赶上公共汽车。
⑥若用if会引起歧义时，则用whether。如：
Please let me know if you like the book．可理解为：
a．Please let me know whether you like the book．请告诉我你是否喜欢这本书。
b．If you like the book，please let me know．你如果喜欢这本书，请告诉我。
3）如果宾语从句原来是特殊疑问句，只需用原来的特殊疑问词引导。如：
Could you tell me why you were late for the meeting this morning？你能告诉我今天早上你为什么开会迟到吗？
3．时态
含宾语从句的复合句，主、从句谓语动词的时态呼应应包括以下三点内容：
1）如果主句的谓语动词是一般现在时，从句的谓语动词可根据需要，选用相应的任何时态。如：
I don't know when he will come back．我不知道他将何时回来。
He tells me that his sister came back yesterday．他告诉我他姐姐昨天回来了。
2）如果主句的谓语动词是过去时，宾语从句的谓语动词只可根据需要，选用过去时态即一般过去时、过去进行时、过去将来时或过去完成时的某一种形式。如：
①The children didn't know who he was．孩子们不知道他是谁。
②He asked his father how it happened．他问他父亲这件事是如何发生的。
3）如果宾语从句所表示的是客观事实、普遍真理、自然现象或习惯性动作等，不管主句用什么时态，从句时态都用一般现在时。如：
The teacher said that the earth goes round the sun．老师说地球绕着太阳转。
4．注意：
if和when既可以引导宾语从句，也可以引导状语从句，应注意它们在两种从句中的意思和用法的不同。if和when引导宾语从句时，分别意为“是否”和“何时”，其时态应和主句时态相呼应；它们引导状语从句时，意思分别为“如果，假如”和“当„„时候”，当主句时态是一般将来时时，其时态用一般现在时。它们常常放在含有状语从句和宾语从句的题干中进行综合考查。如：
—Do you know when he will come back tomorrow ？你知道他明天什么时候回来吗？
—Sorry，I don't know．When he comes back，I'll tell you．对不起，不知道。当他回来了，我将告诉你。
—I don't know if he will come．我不知道他是否会来。
—He will come if it doesn't rain．如果不下雨，他会来的。
简化宾语从句常用六法
同学们常会遇到把含有宾语从句的复合句转化为简单句，使其与原句意思相同（或相近）的试题。下面就介绍几种常用的简化宾语从句的方法：
方法一：当主句谓语动词是hope， decide， wish， choose， agree， promise等，且宾语从句的主语与主句主语一致时，宾语从句可简化为不定式
结构。例如：
Li Ming hopes he will be back very soon.→Li Ming hopes to be back very soon.
We decided that we would help him.→We decided to help him.
方法二：当主句谓语动词是know， learn， remember， forget， tell等动词，且主句主语与从句主语一致时，宾语从句可简化为“疑问词+不定式”结构。例如：
She has forgotten how she can open the window.→She has forgotten how to open the window.
注：当主句谓语动词是tell， ask， show， teach等动词，且后带双宾语，从句主语和间接宾语一致时，宾语从句可简化为“疑问词+不定式”结构。例如：
Could you tell me how I can get to the station？ →Could you tell me how to get to the station？
方法三：当主句的谓语动词是order（命令），require（需要）等时，如果主句和从句的主语不一致，宾语从句可简化为“名词（代词）+不定式”结构。例如：
The headmaster ordered that we should start at once.→ The headmaster ordered us to start at once.
方法四：某些动词后的宾语从句，可以用介词加动名词（短语）等其他形式简化。例如：
He insisted that he should go with us.→He insisted on going with us.
The poor boy doesn’t know when and where he was born.→The poor boy doesn’t know the time and the place of his birth.
方法五：某些动词后面的宾语从句可转化为“宾语+V-ing形式（作宾语补足语）”结构。例如：
Liu Ping found that there was a wallet lying on the ground.→ Liu Ping found a wallet lying on the ground.
方法六：动词seem后的宾语从句，也可以用不定式（短语）来简化，但句型需要进行适当的变化。例如：
It seemed that the boys were going to win.→The boys seemed to win.
除上述方法外，还有一些特殊句式的转化。例如：
I found that it was difficult to learn English well.→I found it difficult to learn English well.
Soon we found that the ground was covered with thick snow.→Soon we found the ground covered with thick snow.
They found that the box was very heavy.→They found the box very heavy 习题一答案:1-5 A D C B C 二 答案:1-7 C B B A A A C 三 答案:1-6 B D B A A C 四答案:1—4 D A A D 5—8 C A C C 状语从句答案
1答案： 1.since 2.unle 3.because 4.where 5.after 6.than 7.as if 8.so that 9.before 10.as
2改错答案答案：1.can 改为could 2.去掉so 3.will come改为 comes 4.very改为 so 5.as soon as 改为when 6.was 改为is 7.than 之后加上that of 8.than 后加 those in 9.whatever改为 wherever 10.is改为 were 3答案答案：1.Whoever 2.Who 3.until 4.As 5.Although 6.that 7.unle 8.where 9.As 10 Hardly, when ( No sooner , than )
4改错答案：1.for 放在looking 之后 2.which 改为 that 3.whom 改为who 4.which改为 how 5.that改为
whether 6.that 改为what 7.If改为 Whether 8.For改为Because 9.so改为 such 10.any 后加other
II.找出从句并指出是那类从句
1.It depends on whether we have enough time .
2.The question he asked was where the electrical equipment should be stored .3.The mountain is no longer what it used to be . 4.The fact that she works hard is well known to us all . 5.He was not the man that he was before .
6.Now you was free , why not go swimming with us ? 7.Where there are schools and colleges , there are examinations .8.Bad habits , once firmed , are difficult to give up .
9.She often wears the same kind of skirt as her twin sister does . 10 .The moment he opened the window , a bird flew in .答案：
1.whether we have enough time 介词宾语从句 2.he asked 定语从句 where the electrical equipment should be stored表语从句 3.what it used to be 表语从句
4.that she works hard 同位语从句 5.that he was before 定语从句
6.Now you was free 让步状语从句 now= now that 7.Where there are schools and colleges 地点状语从句 8.once firmed 时间状语从句 9.as her twin sister does 定语从句
10.The moment he opened the window 时间状语从句
