状语从句用法讲解和练习
第章状语从句
学习指导
状语从句在句子中作状语，用来修饰主句或主句的谓语。一般可分为九大类,分别
表示时间、地点、原因、目的、结果、条件、让步、比较和方式。尽管种类较多,
但由于状语从句与汉语结构和用法相似,所以理解和掌握它并不难。状语从句的关
键是要掌握引导不同状语从句的常用连接词。现分别列举如下:
第一节时间状语从句
2．when，while，as均可表示“当……的时候”。
when强调“特定时间”，表示主句谓语动词的动作与从句谓语动词的动作是同时发生的，或从句的动作发生在主句的动作之前；while表示的时间是一段，而不是一点，as多用在口语中，强调“同一时间”或“一前一后”，有时还有“随着”的含义。
I'll go on with the work when／come back tomorrow．我明天回来后会继续做我的工作。
When spring came, he felt like a trip.春天来了，他想去旅游。
As spring warms the good earth，all flowers begin to bloom．(as有“随着”的含义)
as, when, while都表示主、从句的动作或状态同时发生，但三者也有区别。as和when引导的从句既可表示一点时间，也可表示一段时间，从句中的谓语动词既可以是持续性动词，也可以为短暂性动词，经常可以互换使用；while引导的从句通常表示一段时间，从句中宜用持续性动词作谓语。当从句中的谓语动词为持续性动词时，这三者可以通用（前面例句中已有体现），再如：
Mother was worried because little Alice was ill, especially as / when / while father was away in France.妈妈担心，因为小艾丽思病了，特别是当父亲远在法国的时候。
如果从句和主句要表示一个人的两个动作交替进行或同时完成时，则多用as，可译为“一边......，一边......”。例如：
He looked behind from to time as he went.他一边走，一边不时地往后看。
As time goes on, it’s getting warmer and warmer..随着时间的推移，天气变得越来越暖了。
I thought of it just as you opened your mouth.你一张嘴我就知道你要说什么。（若表示两个短促动作几乎同时发生时，用as的场合多于when.）
当主从句之间表示转折或对比关系时，多用while, 不用as或when。如：
She thought I was talking about her daughter, while in fact, I was talking about my daughter.她以为我在谈论她女儿，而事实上，我在谈论我的女儿。
如果表示从句的动作在主句的动作“之前”或“之后”发生时，多用when（=after）, 不用as或while。此外，when还含有“at that moment”的意思（= and then），引起的句子不能放在句首，也不能用as, while来替换。例如：
He was about to leave when the telephone rang.他正要离开，忽然电话铃响了。
We were watching TV when suddenly the lights went out.我们正在看电视，突然灯灭了。
They had just arrived home when it began to rain.他们刚到家，天就开始下雨了。
3．till／until，表示“一直到……”，主从句都用肯定式；表示“直到……才”，主句否定，从句肯定。
He worked until it was dark. 他一直工作到天黑。
He did not get up till his mother came in. 一直到母亲进来他才起床。4．once“一旦”，by the time“到……时”。
Once you see her, you will find what I said is true. 一旦你见到她就会发现我说的是对的。
by the time+现在时，主句用将来完成时。
By the time he arrives, we will already have left here. 等他到达时，我们将已离开这儿了。
by the time+一般过去时，主句用过去完成时。
By the time he arrived, we had already left here.他到达的时候我们早已离开这儿了。
5．as soon as，the moment表示从句动作一发生，主句动作随即发生，通常译为“一……就”。
As soon as I finish the work, I'll go to see you. 我一完成工作就会来看你。
She came to the scene the moment she heard the news.她一听到消息就来到现场。
6．since“自从”，before“在……前”，after“在……后”，It was not long before意为“不久”。
since引导从句用非延续性动词或“过去时间点”或“过去时间段+ago”，主句用完成时态。
Since he graduated, he has worked in this city. 他毕业后一直在这个城市工作。
I haven't seen him since last year/ three years ago. 去年以来/3年来，我没见过他。
选出最佳答案
1) _________ he was listening to the music, John fell asleep.
A. After
B. Before
C. While
D. As soon as-
2) How did you try to get to school on time you missed the school
bus.
A. when
B. how
C. why
D. that
3) He was riding to school ___ he was hit by a car this morning.
A while B. when C. as D. so
4) Lucy knew nothing about it __ her sister told her.
A. because
B. until
C. if
D. since
5) The policeman asked the child _ c ross the street ____ t he traffic
lights turned green.
A. not; when
B. don't; before
C. not to; until
D.
not to; since
6) The book was so interesting that he had read it for three hours
he realized it.
A. when
B. after
C. until
D. before
7) __________ w e had seen all the animals, we went home.
A. Then
B. After
C. Though
D. While
8) She has made many friends ____ she came to our school.
A. before
B. after
C. since
D. until
9) — How long has the weather been like this?
A. Until last night
B. Ever since last night
C. Two days ago
D. Two days later
10) My uncle went to Australia last year. We haven't seen
A. since almost a year
B. from almost a year on
C. after almost a year
D. since almost a year ago
11) He was so tired that he fell asleep he went to bed.
A. as if
B. even though
C. ever since
D. as soon as
12) I knew nothing about the accident my friend told me yesterday.
A. because
B. since
C. until
D. after
13) I didn't manage to do it __ you had explained how.
A. until
B. since
C. while
D. after
【Keys】1) C 2) A 3) B 4) B 5) A 6) D 7)B 8) C 9) B 10) D 11) D 12)
C 13) A
第二节条件状语从句
1．条件状语从句用一般现在时表示将来。引导条件状语从句的连词有：
If you don't look after young trees, they will die very quickly.
If the museum charges for entry, a lot of people won't be able to visit it.
3．表示否定的条件用unless( =if.．．not)“除非，如果不”。
I shall not go to the cinema unless I finish my homework before eight.
说明：i f…not常可以用unless替代。
If you don’t study hard, you will fail in the exam.
You will fail in the exam unless you study hard.
4．表示使某事成为现实必要的条件用on condition that“条件是”，as long as ‘‘只要”。
You may go swimming on condition that you don't swim too far away from the river bank.
As long as you don't study hard, you will fail in the exam.
5．祈使结构表条件。
前半部分的祈使结构相当于if条件句，可用动词或名词开头；后半部分的简单
个支点，我便能掀动地球。
=If you give me somewhere to stand, I will move the earth.
One more word, and I'll turn you out. 你再多说一句，我就把你赶出去。 =If you speak one more word, I will turn you out.
Use your head, then you'll find a way. 动动脑子你就能找到办法。
如果不加倍努力，你就永远无法通过考试。
= If you don't work harder, you will never pass the exam.
Stop telling lies, or you will be punished. 如果你继续说谎，就会受到惩罚。
= If you don't stop telling lies, you will be punished.
选择最佳答案填空
1) — Would you like to go to the park with me,
Susan?
— I'd like to, ____ you don't want to go
alone.
A. until
B. before
C. if
D. after
2) Tomorrow we'll go to the city park it is sunny.
A. as soon as
B. when
C. if
D. as
3) All of us will be happy ___ you can come with us.
A. while
B. if
C. but
D. or
4) Nobody can learn English well __ you work hard on it.
A. if
B. unless
C. when
D. but
A. if
B. since
C. as soon as
D. unless
【Keys】1) C 2) C 3) B 4) B 5) D
第三节原因状语从句和地点状语从句
1．原因状语从句
着重点在从句，用于回答why，语气最强。
He is absent today because he is ill. 他今天缺席，因为他病了。
I didn't go out because I was busy with homework. 我没有出去，因为我忙于家庭作业。
有时，可用because of后接名词或代词表示原因，此时because of=for(介词)。
We won't be able to come because of the weather. 由于天气的原因，我们来不了。
She was looking all the better for her stay in hospital. 她因为待在医院，显得好多了。
2) for意为“因为”，引导的从句并不说明主句行为发生的直接原因，只提供补充说明，且不可位于主句前。for前往往用逗号或分号与主句分开，引起的从句对主句加以解释。
I didn't go to see him, for a heavy snow was falling. 我没有去看他，因为在下大雪。
The days were short, for it was now December. 白天短了，因为现在已经是十二月了。
We must begin planning now, for the future may bring unexpected changes.
我们必须现在就开始筹划，因为将来可能会发生意想不到的变化。
有时，for引起的从句并不表示原因，而是表示一种推断或解释，而because 则不能。
Someone in the house must be ill, for a doctor has just come out.房子里一定有人病了，因为有个医生刚刚出来。
3) since意为“既然”、“由于”，一般表示对方已知的、无需加以说明的既成事实的理由(如果从句表示的原因不是确定的事实，就不能用since，通常用because)。
Since you are going, I will go too. 既然你要走，我也走了。
Since you are ill, I'll go alone. 由于你病了，我就一个人走了。
4) as意为“由于”，表示十分明显的原因，一般说明因果关系，着重点在主句，语气较弱。
As it is snowing, we shall not go to the park. 由于正在下雪，我们就不去公园了。
He had to apologize, as he knew he had made a mistake. 他必须道歉，因为他知道他错了。
由as表示的原因语势最弱，常用于口语。
5) now that意为“既然”，有时可将that省去，含义与since接近。区别在于：since表示原先已存在的情况，而now that表示现在才发生的情况。
Now that it has stopped raining, let's start at once. 既然现在雨停了，咱们马上开始吧！
Now that you have come, you may as well stay. 既然来了，你最好还是待在这儿。
2．地点状语从句
I'll find him, wherever he is. 不管他在哪里我都要找到他。
You should put the book where it was.你应该把书放在原来的地方。
Wherever you go, you should do your work well. 不论你到哪里都要把工作做好。
选择最佳答案
1) I hope to go to France some day t here are many famous museums
there.
A. though
B. unless
C. because
D. where
2) — Would you like to go to the concert with me?
— I'd love to, ___ I can't. _____ I have a lot of homework to do.
A. and; Because
B. but; Because
C. so; And
D. and; so
3) Jim has been in the factory for two years____________ he left school.
A. when
B. since
C. as soon as
D. whether
4) Jack was very tired ____ he played tennis all afternoon.
A. if
B. as soon as
C. because
D. before
5) You'd better come back earlier _ it is getting colder.
A. as
B. and
C. but
D. or
6) Jane wore a raincoat ____ it was raining.
A. so
B. but
C. however
D. because
7) The Italian boy was regarded as a hero he gave his life for his
country.
A. according to
B. because of
C. on account of
D. because 【Keys】
1) C 2) B 3) B 4) C 5) A 6) D 7) D
第四节让步状语从句
Although I didn’t know anybody at the party, I had a very good time. 虽然晚会上的客人我一个也不认识，但我玩得很愉快。
[注意]“although…but”是个典型的错误，因为but是并列连词，不能与从属连词although连用。但是，although可与yet，still连用，因为yet，still 是副词，它可使前后关系更明确。
3．while意为“然而”。
1) while用于对照，说明两种情况相反，意为“然而，但是”。
Tom is very outgoing, while Jane is shy and quiet.汤姆性格外向，而简
却腼腆安静。
While I was reading, he was playing. 我在读书，而他在玩。
2) while意为“虽然，尽管”，同although，此时从句和主句的主语往往为同一人或物。
While she liked cats。she never let them come into her room．虽然她喜欢猫，但她从不让猫进她的房间。
4．even if “即使”（if后陈述的是假设）；even though“尽管”（though后陈述的是事实）。
I'm going to apply for the job, even if it pays very little. 即使报酬不高，我也要去申请那份工作。
He is an honest man, I say, even though I have opposed him. 我说他是个诚实的人，尽管我反对过他。
5．whether…(or not)“无论是……或是……”.
Whether it rains or not, I shall go out for an outing. 无论是否下雨，我都要外出游玩。
Whether we win or lose, we are going to do our best. 无论胜败，我们都会尽最大努力。
[注意] whether作“无论”解，用现在时表将来；whether作“是否”解时则不能。
They'll go out whether it rains or not tomorrow. 无论明天是否下雨，他们都要出去。
Can you tell me whether it will rain or not tomorrow? 你能告诉我明天是否下雨吗？
纪守法。
It has the same result no matter which way you do it. 无论用什么方法来做，结果都一样。
No matter how cold it is, she often goes swimming.无论有多冷，她总是常去游泳。
选择最佳答案填空
1) __________ he's old, he can still carry this heavy bag.
A. Though
B. Since
C. For
D. So
2) — How do you like the concert given by the "Foxy Ladies"?
—Exciting, _______ one piece of the music wasn't played quite well.
A. so
B. though
C. because
D. and
3) — Shall we go on working?
—Yes, _________ I prefer to have a rest.
A. when
B. if
C. because
D. though
4) Doctor Li went to see the patient it was raining heavily.
A. because
B. and
C. since
D. though
5) — This dress was last year's style.
—I think it still looks perfect it has gone out this year.
A. so that
B. even though
C. as if
D. ever since
6) No matter _______ busy he is, he won't give up his hobby.
A. where
B. how
C. what
D. who
7) I never seem to lose any weight, hard I try.
A. even though
B. no matter how
C. as if
D.
ever since
8) No matter _______ you come, you are welcome.
A. how
B. where
C. when
D. what
9) Though it's raining, ____ a re still working in the fields.
A. they
B. but they
C. and they
D. so they
10) Nobody believed him ______ what he said.
A. even though
B. in spite
C. no matter
D. contrary
to
11) _________ what may happen, I won't change my mind.
A. Even if
B. Although
C. Perhaps
D. No matter 【Keys】
2.1) A 2) B 3) D 4) D 5) B 6) B 7)B 8) C 9) A 10) C 11) D
第五节目的状语从句结果状语从句和比较状语从句
【经典剖析】
1
以in order that，so that
词构成，也可用can/ could或will／would加动词构成。
He works hard in order that he can serve his country well. 他努力工作，目的是为了能更好地为国家服务。
They started early so that they might arrive in time. 他们很早出发，以便按时到达。
[注意]“for+动名词”不用于表目的，但“for+名词”可用于表目的。
Write it in simple English to make(不能用for making) everybody understand. 为了能让每个人都理解，请用简单的英语写。
Better get up early for the early train. 为了能赶上早班火车，请早一点起床。
他做了个错误的决定，以至于他丢失了一半的财产。
The box is so heavy that nobody can move it. 这个箱子是如此重，（以至于）无人能移动它。
It is such a heavy box that nobody can move it. 这个箱子如此重，（以至于）无人能移动它。
[注意]so that既可引导目的状语从句，又可引导结果状语从句，其区别在于：引导结果状语从句时通常用逗号同主句分开。
We walked as fast as we could. 我们尽可能地快步行走。
The work is not so easy as you thought. 这工作没有你想的那么简单。
Nothing is so precious as health没有什么能像健康一样珍贵。
The harder you study, the greater progress you will make. 你越努力学习，进步就越大。
针对性练习
1．选择最佳答案填空：
1) I'll leave him a note __ he'll know where we are.
A. so that
B. so as
C. in order
D. for
2) The question was ______ difficult that nobody could answer .
A. very; them
B. very; it
C. so; them
D. so; it
3) Mike is _________ b oy that we all like him.
A. a good so
B. so good a
C. a such good
D. such
good a
4) They were ________ b usy studying ________ they couldn't go to the
restaurant with us.
A. so; that
B. such; as
C. very; that
D. enough;
as
5) It was _________ that he had to ask for help.
A. so difficult work
B. so difficult a work
C. such a difficult work
D. such a difficult job
6) He started early _______ h e could get there before nine.
A. in order that
B. because
C. so as to
D. in order
to
7) Robert is good at languages, ___ we all know.
A. because
B. for
C. as
D. since
8) It looks ________ it's going to rain.
A. that
B. as
C. as if
D. that
【Keys】
1.1) in order that 2) so that 3) so... that 4) so... that 5) such... that
2. 1)A 2) D 3) B 4) A 5) D 6) A 7) C 8) C
状语从句专练
Ⅰ.选择填空：
1. The man can’t get on the bus because there ________ no room on it.
A. was
B. is
C. are
D. were
2. I was listening to the music ________ there was a knock at the door.
A. while
B. when
C. because
D. until
3. You may leave the classroom when you ________ writing.
A. will finish
B. are finishing
C. have finished
D. had finished
4. I don’t know if he ________ tomorrow,if he _________ ,I’ll meet him.
A. will come, comes
B. comes, comes
C. will come, will come
D. come, will come
5. ________ I read, the more I understand.
A. The more
B. So much
C. How much
D. For all
6. Would you give Johnny this letter if you ________ to see him this week.
A. will happen
B. happen
C. are happened
D. happened
7. She was busy, ________ she couldn’t go to your birthday party last night.
A. and
B. so
C. or
D. but
8. English is ________ a useful language ________ it is spoken in many countries
of the world.
A. so…that
B. such…that
C. so…because
D. such…because
9. You will not succeeded if you ________ harder.
A. will work
B. won’t work
C. work
D. don’t work
10. Write clearly ________ your teacher can understand you correctly.
A. since
B. for
C. because
D. so that
11. ________ he failed , he went on doing the experiment.
A. Even
B. Yet
C. Although
D. in spite of
12. The light went out while we ________ supper.
A. had
B. had had
C. were having
D. would have
13. His brother has worked there ________ he left school.
A.when
B. after
C. since
D. until
14. The boy didn’t stop talking ________ the second bell rang.
A.when
B. until
C. after
D. because
15. ________ I came into the office, the teacher were having a meeting.
A.While
B. When
C. Once
D. Since
16. I was about to leave my house ________ the telephone rang.
A.while
B. as
C. when
D. since
17. It is at least ten years ________ these trees were planted.
A.when
B. before
C. since
D. as soon as
18. He will come to call on you the moment he ________ his painting.
A.finished
B. will finished
C. has finished
D. had finished
19. The teacher understands that ________ Maths had always been easy for him,
it is not easy for the students.
A.since
B. unless
C. although
D. when
20. He ran as fast as possible ________ he could reach school on time.
A.in order to
B. so as to
C. when
D. so that
Ⅱ.把下列句子改成带有状语从句的复合句：
1.He didn’t come. He was ill. (because)
2.He is too young to join the army. (so……that)
3.He studies English hard. He is over seventy. (though)
4.We will stay at home. It rains. (if)
5.He was doing his homework. Someone knocked at the door. (when)
6.I waited. He came back. (not……until)
7.He is tall. I am tall. (as……as)
8.My mother was cooking. I was listening to the news. (while)
9.It was a hot day. We couldn’t sleep well. (such……that)
10.He came into the warm room. He took off his cap and sat down. (as soon as) 参考答案
状语从句专练
I、
1.B
2.B
3.C
4.A
5.A
6.B
7.B
8.B
9.C 10.D
11.C 12.C 13.C 14.B 15.B 16.C 17.C 18.C 19.C 20.D
II、
1.He didn’t come because he was ill.
2.He is so young that he can’t join the army.
3.Though he is over seventy, he studies English hard.
4.We will stay at home if it rains.
5.He was doing his homework when someone knocked at the door.
6.I didn’t leave until he came back.
7.He is as tall as I (am)
8.My mother was cooking while I was listening to the news.
9.It was such a hot day that we couldn’t sleep well.
10.He took off his cap and sat down as soon as he came into the warm room.
状语从句讲解及习题附答案
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词原形，thoｕgｈ也可用于这样的结构中，但ａｌｔｈ ｏｕgｈ不可以这样用。?例如：Ｏbjｅct aｓyou may, Ｉ’ll gｏ。（=Ｔｈough/Aｌｔhｏugh yｏu may object, I’ll ｇo。）纵使你反对,我也要去。（3）ｅｖｅn if，ｅvｅｎｔhｏｕgｈ表示“即使……”,“纵使……”之意，含有一种假设。这 两个复合连词的意思基本相同。它们常互换使用,但意 义有细微差别。even if引导的让步从句含有强烈的假 定性，可用来表示与事实相反的假设，但不能用来描述 已经发生的事实.而ｅven tｈｏuｇh引导让步状语从句 时,是以从句的内容为先决条件的，即说话人肯定了从 句的事实，表示已经发生了的事。?例如: We’ll make a ｔｒiｐｅven ｉf／tｈough thｅｗea ｔheｒ is ｂad. 即使天气不好，我们也要作一次旅行. ?(4）whethｅｒ．..or。。。表示“不论是否……”， “不管是……还是……"之意。由这一个复合连词 引导的让步状语从句旨在说明正反两方面的可能性都不 会影响主句的意向或结果。 例如: Ｙoｕ'll ｈave tｏａｔｔeｎd thｅｃer ｅｍony whetｈer you're fｒeｅｏr bｕsy．不 管你忙不忙,都要参加这个典礼。?Wｈeｔheｒ you ｂelieve iｔ or ｎot， it＇s true．无论你是否相
英语让步状语从句用法总结
英语让步状语从句用法总结（一） 让步状语从句的用法一（表示“虽然，即使，尽管”） 1. although，though，even though，even if都表示“虽然，即使，尽管”之意，though 和although 语气较弱(其中的though 比although 通俗, 不如although 正式)，even if和even though 带有强调意味而显得语气更强。例如：Although they are poor, they are happy. 虽然他们很穷，但很快乐。天气虽然很冷, 但他没有穿大衣就出去了。即使他们可能不会成功，但他们仍努力尝试。那篇文章虽然很短，但很重要。他好一点了，虽仍未痊愈。即使下雨，她也是走着去工作的。今晚我将去拜访他，即使我只能停留一小会儿。 注意：though 引导的让步状语从句的用法比较特殊，它可以倒装，也可以不倒装，具体用法参见as引导让步状语从句的用法。 2. as引导让步状语从句表示“虽然、即使、尽管”，其引导的让步状语从句必须采用倒装结构，as引导的倒装形式的让步状语从句的基本结构为：形容词/副词/名词(单数可数名词前一般不带冠词，有时也可见单数可数名词前形容词与不定冠词连用、形容词放在不定冠词前)/动词/过去分词＋as＋主语＋谓语的其他部分。注意体会下列典型例句：Great as the author was, he proved a bad model. 这位作者尽管了不起，到头来却成了一个坏榜样。这个故事看似荒唐，却是真的。虽然他很富有，但他并不幸福。倒装时要省去单个名词前的冠词)尽管还是个孩子，他却能分辨黑白。他尽管勇敢，可见到蛇还是发抖。尽管伤势很重，他仍然十分乐观。虽然尽了最大努力，但是他仍然不能搬动那块石头。 ［考题1］We had to wait half an hour ____ we had already booked a table. A. since B. although C. until D. before ［答案］B ［解析］下划线处之后所述的“我们已经预订了一桌”与前面所述的“我们已经不得不等了半个小时”之间语意相反，四个选项中although表示“即便……”，引导让步状语从句最为合适。 ［考题2］____ most of the earth’s surface is covered by water, fresh water is very rare and precious. A. As B. Once C. If D. Although ［答案］D ［解析］句意为：虽然地球表面覆盖着水，但是纯净水仍然很稀有、珍贵。下划线处应引导让步状语从句，填入although最为合适。 ［考题3］____ he has limited technical knowledge, the old worker has a lot of experience. A. Since B. Unless C. As D. Although ［答案］D ［解析］下划线处应引导让步状语从句，填入although最为合适。 ［考题4］Although he is considered a great writer, ____. A. his works are not widely read B. but his works are not widely read C. however his works are not widely read D. still his works are not widely read ［答案］A ［解析］英语不允许在连词although、though引导的让步状语从句之后的主句句首重复使用连词，如果要在复合句中强调某种特别的意义，可以在主句的句首加上yet、still等副词。例如：Although she has a lot of money, (yet/still) she is not happy. 虽然她很有钱，但是她并不快乐。
状语从句练习题含答案及解析
状语从句练习题含答案及解析 一、初中英语状语从句 1．—I hear Music and Art will enter the Entrance Examination for the high school. —Yes. but don’t worry. Nothing will be difficult if more attention _____ to them. A．will pay B．will be paid C．is paid D．pays 【答案】C 【解析】句意：——我听说音乐和艺术将进入高中入学考试。——是的。但别担心。如果对他们给予更多的关注，就不会有困难。考查被动语态。本句是if引导的条件状语从句，需用一般现在时态代替一般将来时态；从句主语more attention是单数第三人称，又是动词pay的受动者，需用被动语态，即is+paid结构；根据句意语境，可知选C。 2．You won't succeed _____ you work hard A．if B．because C．unless D．so that 【答案】C 【解析】 【详解】 句意：你不会成功的，除非你努力工作。if如果；because 因为，引导原因状语从句；unless如果不，除非；so that以至于，引导结果状语从句；为的是，引导目的状语从句。根据句意可知，这里表示“如果不努力工作”，故应选C。 3．一When did you leave your office yesterday? 一 I finished the project. A．Until B．While C．When D．Not until 【答案】D 【解析】 句意：昨天你什么时候离开你的办公室的？——直到我完成那个任务。本题考查连词。A. Until 直到···时候才结束，要与延续性动词连用；B. While 当···时候；C. When 当···时候；D. Not until直到···时候才开始，与非延续性动词连用；句子中finished（完成）是非延续性动词，故选D 4．It is necessary for children to exchange ideas with parents from time to time ________ a good parent-children relationship could be set up. A．so that B．because C．as soon as 【答案】A 【解析】 【详解】 句意“为了建立良好的亲子关系，孩子们有必要不时地与父母交流思想”。A.目的是，为的是（引导目的状语从句）；B.因为（引导原因状语从句）；C.一……就……（引导时间状语从句）。根据句意可知，表示“目的是为了建立良好的亲子关系”，表示目的，故选A。
(完整版)where引导的地点状语从句用法总结归纳
where引导的地点状语从句用法总结归纳 1、where 在地点状语从句中，除指地点外，还可指处境等。 eg. I'm unsatisfied with where I live. 我对自己住的地方特不 满意。 2、有时地点状语从句中的某些词能够省略。 eg. Fill in the blanks with the given phrases. Change the form where necessary. 用所给的短语填空，必要的地方能够改变其 形式。 3、地点状语从句一般置于主句之后。 eg. Keep it where you can see it. 把它放在你看得见的地方。 4、where一般表示一个确定的但非特指的地点。 eg. The school was built where there had once been a cemetery. 学校建在一座墓园的旧址。 5、wherever, anywhere 和 everywhere 表示“任何地方”。 eg. No matter where you now are in writing, you can improve with practice. 不管你在写作上你处于什么水平，练习都能帮你提升。 6、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；而状语从句前则无需先行词。 eg. Go back where you came from.你从何处来到何处去。(where引导地点状语从句) Go back to the country where you came from.你从哪个国家来了 就回哪去。(where引导定语从句，修饰place)
状语从句讲解和练习
状语从句 状语从句修饰主句/主句的谓语。一般有九大类：表示时间、地点、原因、目的、结果、条件、让步、比较和方式等。 时间状语从句 1. 用when引导：when表示“当……时候”。如： Things were different when I was a child. 我小时候情况与现在不同。 People breathe more slowly when they are asleep. 人睡觉时呼吸比较缓慢。 2. 用while引导：while表示“当……时候”。如： We must strike while the iron is hot. 我们要趁热打铁。 I went swimming while the others played tennis. 我去游泳，其余的人都打网球去了。 注意：while 所引导的时间状语从句中谓语动词必须是持续性的，不能是短暂性的。 3. 用as引导：as表示“当……时候”“随着”。如： He dropped the glass as he stood up. 他站起来时，把杯子摔了。 We get wiser as we get old. 随着年岁的增长，我们也变得聪明些了。 4. 用before引导：before表示“在……之前”。如： Turn off the lights before you go to bed. 睡觉前要关灯。 Before he went to university he was a worker. 上大学之前他是工人。 5. 用after引导：after表示“在……之后”。如： I will tell you after they leave. 他们走我再告诉你。 After you finish the letter show it to me．信写完后给我看看。 6. 用until / till引导：until / till表示“直到……”。如： He waited until she was about to leave. 他等着一直到她准备离开。 I watched him until he disappeared in the distance. 我瞧着他直到他在远处消失。 这类句型的主句动词通常只能是延续性动词，不能是终止性动词。但是，在否定句中，主句动词可以是终止性动词，此时构成not…ntil [till]…句式，意为“直到……才……”。如：
第五讲-高中英语状语从句详解
状语从句 一：状语从句的定义、功能、分类 定义：在复合句中作状语的从句 功能：状语从句在主从复合句中修饰主句中的动词，形容词或副词，或整个主句 分类：按意义可分为时间、地点、原因、目的、结果、条件、方式、比较、让步等状语从句。位置：从句的位置放在句首，也可放在句末。放在句首时，从句后面常用一个逗号，放在句末时，从句前一般不用逗号。 二：考点与难点 1、各种从属连词的含义及用法比较； 2、no matter wh- 与wh-ever 引导的从句的区别； 3、状语从句的时态问题； 4、状语从句倒装及省略； 5、状语从句与其它从句的区别。三：九种常见状语从句用法 1. 时间状语从句 引导时间状语从句的从属连词 1）.基本类：before、after、when、while、as、since、till、until、once, as soon as, etc. 2）. 名词类 the moment ,the minute, the second, the instant,etc. (一…就…); every time, each time, the last time, the first time, the day, the year, the morning etc. 3）. 副词类：immediately, directly, instantly, etc. (一...就...) 4）.句型类：no sooner…than…, hardly/scarcely…when…, etc. (一…就…) 注意：1. when, as, while When ①when表示时间点时，从句中用短暂性动词；表示时间段时，用持续性动词。Eg:. When they were still talking and laughing, the teacher came in. （when表示段时间） 2). He waved a hello when he saw her.（when表示点时间） ②. 可用作并列连词，其意义为“这时,突然”，相当于and then suddenly。常用于下列句式： be doing / be about to do sth/ be on the point of doing / have/had done + when Eg.1). I was about to go out when the door bell rang. 2). One evening I was having my dinner when an unexpected friend knocked my door. ③. 还可以表示原因,意思是“既然”，相当于since; considering that Eg. 1). It was foolish of you to take a taxi when you could easily walk there in five minutes . 2). How can he get good grades when he won't study? While ①while通常表示一段时间，从句中常用持续性动词作谓语。 Eg: Strike while the iron is hot. 趁热打铁。 ②while有时可以作并列连词，表示对比，可译成“然而……”。 Eg: 1). I am fond of English while he likes maths. ③while有时可引导让步状语从句，意思是“虽然”。 Eg. While they love the children, they are strict with them. As ①表示一边……一边……，强调从句和主句中两个动作交替进行或同步进行。 eg: She is singing a song as she took a bath. ②as表示随着 eg: As time goes on, it's getting warmer and warmer. 2. till, until和not…until 1）until /till用于肯定句时，表示直到…为止，主句必须为持续性动词。
状语从句的用法(基础讲解)
状语从句的用法 责编:王晓丽 【真题再现】 1. — Mrs. Li, will you be angry your students don’t obey the rules in class?(2014 山西) — A little. But I will stop them in a friendly way. A. if B. unless C. though 2. jeans were invented over 100 years ago, they're still in fashion today.(2014 江西) A. Because B. If C. Although D. Since 3. The teacher asked me to read aloud all the students could hear me.(2014 滨州) A. so that B. for C. because D. in order to 4. — The air pollution is terrible. (2014 扬州) — It will be worse we take action to protect the environment. A. if B. unless C. until D. when 5. Lin Feng has to work late, she always wears a smile on her face. (2014 南京) A. Because B. If C. Until D. Though 6. In summer milk will quickly go bad it is put into a fridge. (2014 杭州) A. though B. unless C. because D. once 7. I don’t like TV series it’s boring．(2015 青海) A．but B．and C．because 8. Mr. Smith has a habit of taking a shower he has breakfast. (2015 温州) A. though B. before C. because D. since 9．You’d better travel around Nanjing with a local tour guide you want to know more about its culture. (2015 南京) A．unless B．until C．although D．if 10. Pandas are facing danger! The situation won’t change humans stop killing．(2015 南通) A．unless B．though C．if D．after 11. — Jenny, will you leave for the USA now? (2015 常州) — No. It will be two weeks I leave here. A. until B. since C. before D. when 12. my cousin is very young, she can help with the housework.(2015 福州) A. Once; 不填 B. Though; but C. Although; 不填 【答案与解析】 1. A。句意：——李老师，如果你的学生不遵守课堂纪律你会生气吗？——有点儿。但 我会用一种友好的方式去阻止他们。if如果；unless除非；though尽管，引导让步状语从句。 根据句意可知答案为A项。 2. C。句意：尽管牛仔裤在100多年前就被发明出来了，但是它们今天仍然很流行。 because因为；if如果；although尽管；since自从。根据句意可知选择C项。 3. A。句意:老师叫我读大声一点，这样的话，所有的学生都可以听得到。这是一个结果 状语从句，所以排除B、C项；D选项in order to 后面接短语，故选A。 4. B。句意：——空气污染很糟糕。——它将变得更糟糕，除非我们采取行动保护环境。 if如果；unless除非，如果不；until直到；when当……时候。根据语境选B项。