高考状语从句详解

1、 状语从句(adverbial clause)讲解含义：在句中作状语，可修饰主句中的动词、形容词和副词等。用法：状语从句可放在句首或句末。放在句首时，从句后面常用逗号；放在句末时，从句前面往往不用逗号。种类状语从句根据它们的含义分为：时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、方式状语从句、让步状语从句、条件状语从句、比较状语从句等九种。引导时间状语从句的连词有： when、while、the moment、before、 after、till、unless、since、 as soon as 等一、时间状语从句1、while, when, whenever和as的用

2、法比较（1）while常表示一段较长的时间或一个过程，强调主句的动词和从句的动词所表示的动作或状态是同时发生的。从句的动词通常是延续性动词或系动词。此时while可用when或as替换。 Dont talk so loud while( as) others are working.别人工作时，请勿大声说话。The landlady suspected that someone must have broken into the house while (when, as) she was watching TV show. 女房东怀疑在她看电视时曾有人闯入屋里。 （2）when引导的时间状语

3、从句，可指时间的一点，也可以指一段时间，从句的谓语动词可用终止性动词，也可用持续性动词。when表示在某个具体的时间里发生的动作。此时，when不能用as或while替换 。When she comes, I shall tell her to wait for you. 她来的时候我会告诉她等你的。(指具体的时间点) 表示一个动作与另一个动作在同一时间发生，或一个动作在另一个动作所延续的时间范围之内发生。此时，when可以用as或while替换。 He entered the room when (while, as) the meeting was going on. 正当开会的时候他走进

4、了房间。 表示从句的动作发生后，主句的动作立即发生。此时，when表示动作的先后顺序，相当于after, 不能用as或while替换。 When he had done his homework, he watched television. =After he had done his homework, he watched television. 他做完作业后看电视。两个同时发生的动作，如果不是一次性而是重复性的，即过去或现在的习惯动作，可用连词when或whenever, 意思是“每当的时候”。例如： When (Whenever) he goes to town, he always

5、 visits his aunt. 每当他去镇上，他都去拜访他姑姑。She always felt ill when (whenever) she ate oyster. 她每次吃牡蛎都会生病。 （3）as用as时主句和从句的动作往往同时发生，具有延伸意义，一般同延续性动词连用，有时可译作“一边一边”。As time went on, his theory proved to be correct.随着时间的推移，他的理论被证明是正确的。As（when）he finished the speech, the audience burst into applause.他讲话结束的时候，听众掌声雷

6、动。（指一点时间不能用while）2、名词词组引导时间状语从句有时名词every time(每次)，the next time(下一次)，the next day(第二天)，the moment(一就)， the instant, the second, the year等，也可起从属连词的作用，引导时间状语从句。Every time you get back at night, you drop your shoes on the floor.你每一次晚上回来，都把鞋子丢在地板上。3、副词作连词用引导时间状语从句4、since和before的用法比较两者均可用于It+ be.+since/b

7、efore-从句的句型。区别在于since表示“自从以来”，所在主、从句的谓语动词的时态关系是:It is/has been sometime since sb. did sth.。而before的含义是 “(过了多久)才”，主、从句的时态关系是:It was/had been some time before sb. did sth.。表过去和将来时，两者相应的句型分别是:It was some time since sb. had done sth.和It will be some time before sb. does sth.It is 30 years since he joine

8、d the revolution. 他参加革命己三十年了。It was three days before he came back. 他三天后才回来。It was not long before he came back. 不久他就会来了。特殊句型：Hardly/Scarcely+完成式+when.No sooner+完成式+than.Hardly had we got into the country when it began to rain.=We had hardly got into the country when it began to rain.No sooner had h

9、e come home than she started complaining.=He had no sooner come home than she started complaining.He had no sooner arrived there than he fell ill.She had scarcely fallen asleep when a knock at the door awakened her.ever since(自从)与since句型：It is/was .since.It was just a week since we arrived here.You

10、have been reading to me ever since James went out.(强调时间长)The big clock was damaged during the war and has been silent ever since.(可放句末)My uncle went to Tibet in 1981.He has been living there ever since.(从那以后）二、地点状语从句地点状语从句一般由where(在地方; 那里)，wherever(无论哪里)和everywhere(在每一个地方)引导。After the war, a new sch

11、ool building was put up where there had once been a theatre. 战后，一所新学校在以前的剧院处建成。You should make it a rule to leave things where you can find them again. 你应当养成惯例，将东西放在你能找到的地方。She found her calculator where she lost it. 他在她丢的地方找到了计算器。Everywhere they went, the distinguished guests were warmly welcomed.贵

12、宾每到一处都受到了热烈的欢迎。三、原因状语从句原因状语从句一般由because(因为)，since(既然)，as(由于)，now that(既然，因为)等连词引导1、because, since, as, for和now that引导原因状语从句（1）because表示直接的原因或理由，表示原因的语气最强，常表示必然的因果关系。回答以why引起的特殊疑问句，只能用because。 Jane wore a raincoat because it was raining.因为天下雨，所以詹穿着雨衣（2）since表示对方已经知晓、无须加以说明的原因或事实，语气比because稍弱。Ill do i

13、t for you since you are busy.既然你忙，我来替你做吧。 Since you insist, Ill go.既然你坚持，那我就去。（3）as表示的往往是十分明显的原因，听者或读者已经知道或能看得出来，语气较弱，只附带说明，比较口语化。We had better hurry as its getting dark.因为天快要黑了，我们最好快点。As you object, Ill change the plan.由于你反对，我将改变计划。4）forfor是并列连词，它引导的分句不表示直接的原因，而是用来附带解释或说明前面一句的情况。for引导的分句常位于第一分句之后，它

14、们之间用逗号隔开。It must have rained last night, for the ground is wet this morning.昨晚准是下雨了，今天早上地面还是湿的。The day breaks, for the birds are singing.小鸟在歌唱，一定是天亮了。（5）now that意为既然，与since同义，但更突出事实本身。Now that everyone is here, lets begin our meeting.既然大家都来了，我们就开始开会吧。Now that I am well again, I can go on with my wor

15、k.我既然恢复了健康，那就可以继续工作了。2、seeing that, considering that和in that引导原因状语从句 这几个连词同since, as 近义，都有“鉴于某个事实，原因”是之意。 Considering that hes only been learning English a year, he speaks it very well.鉴于他只学了一年， 他英语讲得就是很好。 Seeing that he was ill, they sent for the doctor.鉴于他病情严重，他们派人请医生。 In that she is ill, she feel

16、s unable to do it.因为病了，她觉得不能做那件事。3、not thatbut that引导原因状语从句这是一种加强语气的表示原因的结构，意为“不是因为，而是因为”Not that I dont like the film, but that I have no time for it.不是因为我不喜欢这部电影，而是因为我没时间看。The soldiers essential honor was not that he killed his enemy, but that he was willing to die.军人的真正光荣不是杀敌，而是不惜牺牲。四、目的状语从句1、tha

17、t，so that，in order that引导目的状语从句目的状语从句由that，so that，in order that等引导。从句中的谓语动词前常有情态动词may、might、can、could、will, would等。John shut everybody out of the kitchen so that he could prepare his grand surprise for the party. 约翰把其他人关在厨房外，目的是能够为晚会烹饪出人意料的东西。These men risk their lives in order that we may live mor

18、e safely. 这些人甘冒生命危险，是为了让我们活得更安全些。2、lest, for fear that和in case引导目的状语从句 这三个连词词组的意思是“以防，以免”。lest的从句一般要用虚拟语气，形式是“should+动词原形”或省掉should。for fear that和in case从句一般用虚拟语气，但有时也可以用陈述语气。I obeyed her lest she should be angry. 我得顺着她，免得她生气。Take a hat with you in case the sun is very hot. 倘若太阳很利害，你就把帽子戴上。五、结果状语从句1

19、、so that，sothat, suchthat引导结果状语从句 So difficult did I feel it to live in an English-speaking country that I determined to learn English well.我感到在讲英语的国家里生活太难了，因此我决定学好英语。He worked hard so that he passed the exam. 他学习很努力，结果通过了考试。He spoke for such a long time that people began to fall asleep.他讲了那么长时间，人们开

20、始打起瞌睡了。2、sothat与suchthat的区别这两种结构都可引导结果状语从句。so是副词，后接形容词或副词；such是形容词，后接名词。（1）单数名词在so.that与such.that中间出现的是单数名词，且该名词前有形容词修饰时，这两种结构可互换，但要注意它们的词序不同:such+ a/an+形容词十名词=so+形容词+a/an+名词。She is such a good teacher that all of us love her.= She is so good a teacher that all of us love her.她是一位很好的老师，我们都敬爱她。（2）不可数

21、名词或复数可数名词如果被修饰的是不可数名词或复数可数名词时，一般须用such.that。He made such rapid progress that before long he began to write articles in English.他进步很快，不久就开始用英语写文章。(不可数名词)They are such interesting books that we all want to read them.这些书是那么有趣以致我们都想读一读。(复数可数名词)（3）名词前有many，much，little，few修饰时如果不可数名词或复数可数名词前有many，much，litt

22、le，few修饰时，则用sothat。Ive had so many falls that Im black and blue all over.我摔了好多次跤，周身青一块紫一块的。(复数可数名词)George had so little money that he had to get a job.乔治没有钱，所以他不得不找工作干。(不可数名词)They are such little children that they cant do anything.他们是小孩,什么事情都干不了。六、比较状语从句比较状语从句一般由asas(和一样)，not as/soas(与不一样)，than(比),

23、the more, the more(越越)引导。The director gave me a better offer than he gave Dick.导师给我的提议比给狄克的好。In recent years travel companies have succeeded in selling us the idea that the further we go, the better our holiday will be.近几年旅游公司已成功地对我们公众宣传了去得越远，假日越好的观点。John plays football as well as, if not better tha

24、n, David. 如果说约翰的足球踢的不比大卫好，至少和他踢的一样好。I cant run as/so fast as he can. 我不能跑得他那样快七、让步状语从句让步状语从句由though，although，as，even if (though)，however，whatever，whoever，whenever，no matter +wh词，等引导。1、even if, even though, although，though引导的让步状语从句 这四个词（词组）都有“虽然、即使、尽管”的意思。even if和even though带有较强的意味，都不能和but连用，但可以和yet,

25、 still或nevertheless连用。even if，even though所接的句子常用虚拟语气。We wont give up even if we should fail ten times.即使是我们失败十次，我们也不会放弃。 He might have given you more help，even though he was very busy尽管他很忙，他可能给了你更多的帮助。2、as或though引导让步状语从句形容词+ as/though+ 主语（1）由as或though引导让步状语从句用倒装语序Proud as these nobles are, he is afr

26、aid to see me.这些贵族尽管很傲慢，他们却害怕见我。（2）如果表语为单数可数名词，这个名词不带冠词 12-year-old girl as she is, she has had a good command of English.她虽然只是个12岁的女孩，但是她已经熟知英语。Child as he is，he knows a lot.虽然他还是个孩子，却懂的很多。(3)如果句中谓语包含情态动词或助动词，则将实意动词放在as之前Try as I might，I couldnt lift the stone.我使多大劲儿也搬不动这块石头。Praised as he was, he r

27、emained modest.他虽然受到表扬，但仍然保持着谦虚。（4）如果句中谓语仅有实意动词，则将实意动词(原形)放在as之前，并在主语后面加助动词do, does, did或will。Torture her as they did, the enemy got nothing out of her.虽然敌人拷打她，却没有能从她嘴里得到什么。 Fail as he did, he would never give up.尽管他失败了，但他决不会放弃。注:但是，如果在这种情况下，句中谓语有副词修饰，则将副词放在as之前。Again and again as he failed, he didn

28、t lose heart.他虽然多次失败，但仍不灰心丧气。Much as I admire his courage, I dont think he acted wisely.我虽然佩服他的勇气，但是我认为他这样做是不明智的。3、由no matter+ wh词和由疑问词ever引导让步状语从句由no matter引导，表示“不管；无论”；由疑问词ever引导，表示“不管，不论”。这类词有：whatever，whichever，whoever，however， whenever，wherever等,他们相当于no matter+ what（which，who，how，when， where），都

29、不能与but，so，and等并列连词同时使用。Well have to finish the job, however(no matter how) long it takes. 不管需要多长时间，我们都一定完成这项工作。No matter what(Whatever) you do, dont tell him that I told you this. 无论你做什么，别告诉他我对你说过这件事。4、由whetheror引导让步状语从句由whetheror引导让步状语从句表示“不论还是”，提供两种对比的情况。I shall go, whether you come with me or sta

30、y at home. 不论你来还是留在家中，我都要去。Whether we like a particular piece of news or not, all we have to do is sit in front of the tube and “let it happen”.不管我们喜欢不喜欢一条消息,我们所能做的只是坐在电视机前，“让它过去”。attentionas也可以引导让步状语从句，但要用倒装句Young as he is , he knows a lot.=Though he is young/ Young though he is八、条件状语从句条件状语从句可以位于主句

31、前面或后面。由if，unless引导 if “如果”；unless意为“除非，如果不”（if not）You will be late unless you leave immediately.除非你立即走，否则，你会迟到。If you dont hurry up, youll be late. 如果你不快点，你就会晚了。Well go there unless it rains. 如果不下雨，我们就去那儿。2、由suppose，supposing，as/so long as， providing, provided, on condition that和in case等引导 这类连词（词组）

32、意思相近，有：“如果、假设、即使、在条件下”等意义。Suppose (Supposing) he is ill, what shall we do? 如果他病了，我们该怎么办？Youll do all right, as long as you follow his advice.只要你听从他的劝告，你就会干得很好的。In case John comes, please tell him to wait.假如约翰来了，请让他稍候。You may keep the book a further week provided (that) no one else requires it. 倘若这本书

33、没有其他人想借的话，你可以再续借一个礼拜。九、方式状语从句方式状语从句一般由as(正如；按照)，as if/as though(好像),the way等引导。1、as if 和as though引导方式状语从句 as if 和as though意为“好像、仿佛”可以用虚拟语气表示不符合事实或与事实相反的情况；也可以用陈述语气表示符合事实的情况。He walked slowly as if he had hurt his leg. 他慢慢地走，她像腿受伤的样子。He spoke as if he knew the question very well.他说得好像对这个问题知道得很清楚。2、the

34、 way引导方式状语从句the way它的作用相当于the manner，后面的引导词常用that引导方式状语，而且经常省略。此时，一般不用in which引导。I dont like the way you speak to her.我不喜欢你和她说话的方式。We didnt like the way that he treated us. 我不喜欢他对待我们的方式。十，状语从句的简化状语从句的省略状语从句同时具备下列两个条件:主句和从句的主语一致，或从句主语为it；从句主要动词是be的某种形式。从句中的主语和be动词常可省略。例如：When ( the museum is ) comple

35、ted , the museum will be open to the public next year . Hell go to the seaside for his holiday if (it is ) possible.另外，比较状语从句经常省略。例如：Im taller than he (is tall ). The higher the temperature (is), the greater the pressure (is ). 就状语从句而言,有时为了使语言言简意赅,常常将状语从句进行简化。状语从句的简化现象在口语中较为普遍,而且在高考中的复现率也较高。因此,有必要对其

36、进行全面、透彻的了解。状语从句的简化现象常存在于以下五种状语从句中:由if, unless等引导的条件状语从句;由although, though, even if / though等引导的让步状语从句;由when, while, as, before, after, until / till等引导的时间状语从句;由as, as if等引导的方式状语从句;由as, than等引导的比较状语从句。下面针对这五种情形作一归纳。(1)当状语从句的主语是it,且谓语动词是be时,it和be要完全简化掉。例如:If (it is) possible, he will help you out of th

37、e difficulty.如果可能的话,他会帮你摆脱困境。You must attend the meeting unless (it is) inconvenient to you.除非情况对你来说不方便,否则你必须出席这次会议。(2)当状语从句的主语和主句的主语一致时,从句可以将主语和be动词简化掉。常用于以下几种情形:a.连词+形容词As (he was) young, he learned how to ride a bike.他小时候就学会了骑自行车。Whenever (she is) free, she often goes shopping.她有空就去逛商店。Work hard

38、when (you are) young, or youll regret.少壮不努力,老大徒伤悲。b.连词+名词While (he was) a young boy, he was always ready to help others.他在孩提时代就乐于助人。Although (he was) a farmer, now he is a famous director.尽管他曾是个农民,而现在是位著名的导演了。c.连词+现在分词As (she was) walking along the river bank, she was singing a pop song.她沿着河堤边走边唱着流行

39、歌曲。Although (he is) doing his best in maths these days, he has still got no good marks.尽管近来他一直在学数学,但他仍然没有取得好成绩。d.连词+过去分词He wont go there with us unless (he is) invited.除非受到邀请,否则他不会和我们一道去那里。The concert was a great success than (it was) expected.这场音乐会出乎意料地取得了巨大成功。e.连词+不定式He stood up as if (he were) to

40、 say something.当时他站起来好像要说什么。He wouldnt solve the problem even if (he were) to take charge.即使他来负责,他也解决不了这个问题。f. 连词+介词短语She looked anxious as though (she was) in trouble.她看上去很焦急,好像遇到了麻烦。He had mastered the English language before (he was) in the USA.他到美国之前就懂英语了。注意:当从句主语和主句主语不一致时,从句部分要么用完全形式,要么用独立主格结构来

41、表达。例如:When the meeting was over, all the people went out of the meeting-room.当会议结束时,人们都走出了会议室。(=The meeting over, 状语从句练习题21. Wed better hurry _ it is getting dark.A. and B. but C. as D. unless22. I didn t manage to do it _ you had explained how.A. until B. unless C. when D. before23._ he comes, we w

42、ont be able to go.A. Without B. Unless C. Except D. Even24. I hurried _ I wouldnt be late for class.A. since B. so that C. as if D. unless25. _ I catch a cold, I have pain in my back.A. Every time B. Though C. Even D. Where26. Whats the matter _ they still havent answered the telegram?A. when B. tha

43、t C. though D. however27. Bring it nearer _ I may see it better.A. although B. even though C. so that D. since28. You may arrive in Beijing early _ you mind taking the night train.A. that B. though C. unless D. if29. Helen listened carefully _ she might discover exactly what she needed.A. in that B.

44、 in order that C. in case D. even though30. More people will eat out in restaurants _ they do today.A. than B. when C. while D. as31._ hard she tries, she can hardly avoid making mistakes in her homework.A. Much B. However C. As D. Although32. Poor _ it may be, there is no place like home, _ you may

45、 go.A. as; wherever B. though; whenever C. in spite of; when D. that; wherever33. The child was _ immediately after supper.A. enough tired to go to bed B. too tired to go to bedC. so tired that he went to bed D. very tired, he went to bed34. The history of nursing _ the history of man.A. as old as B

46、. is old than C. that is as old as D. is as old as35. _ born in Chicago, the author was famous for his stories about New York.A. Since B. Once C. When D. Although36._ we stood at the top of the building, the people below were hardly visible.A. As B. Although C. Unless D. In spite of37. Scarcely was George Washington in his teens _ his father died.A. than B. as C. while D. when38. _ David goes, he is welcome.A. Whichever B. However C. Wherever D. Whatever39. Th