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1、语法专题 主从复合句：状语从句 The Adverbial Clauses,一、基本概念二、状语从句分类三、各类状语从句重难点四、考点与注意点汇总,1、状语修饰动词、形容词、副词或整个句子，说明动作或状态特征的句子成分，叫做状语。通常由副词、介词短语、动词不定式、分词或从句等担当。2、状语从句 在主句中作状语的从句叫状语从句，主要用来修饰主句或主句的谓语，状语从句在句中相当于副词做状语，因此又叫副词性从句。,1.While I was walking along the street,I found many beautiful buildings()2.Where there is a wi
2、ll,there is a way.()3.Now that everybody is here,lets begin our meeting.（）4.Ill speak slowly so that you can understand me.()5.So clever was he that he was able to work out all the difficult problems.()6.As long as you dont lose heart,youll succeed.()7.Try as he might,he could not find a job.()8.The
3、 old lady treats the boy as if he were his own son.()9.He is taller than I am.(),时间,地点,原因,目的,结果,例句导入,条件,让步,方式,比较,二、状语从句分类,九种状语从句,时间状语从句地点状语从句原因状语从句条件状语从句让步状语从句结果状语从句目的状语从句方式状语从句比较状语从句,归纳总结,1、时间状语从句when,while,as,before,after,since,by the time,till,until,notuntil,once,as soon as,the moment,the minute,
4、the instant,immediately,directly,instantly,hardlywhen,scarcelywhen,no soonerthan,every time,each time,the first/second/last time,3、原因状语从句because,since,as,for,now that(既然）,in that（因为）,4、条件状语从句 if,unless,as(so)long as,on condition that,2、地点状语从句where,wherever,各类状语从句常见的连接词,5、让步状语从句 although,though,as,ev
5、en though/even if,while(虽然）,when,no matter+which/what/when/where/who/how,whichever,wherever,whatever,whoever,whenever,however,whetheror,7、目的状语从句so that,in order that,in case,8、方式状语从句 as,as if/as though,6、结果状语从句sothat,suchthat,各类状语从句对应的连接词,9、比较状语从句 than,asas,not so/asas,the+比较级,the+比较级,用横线划出下列句子中的状语从
6、句，并指出是哪种状语从句,1.Child as she is,she knows a lot of things.2.The more I can do for the class,the happier Ill be.3.He talks as if(as though)he knew all about it.4.He is such a good teacher that the students love and respect him.5.I shall go to the park unless it rains.6.No sooner had I got home than it
7、 began to rain.,让步,比较,方式,结果,条件,时间,辨析状语从句类型练习,7.Where there is water,there is life.8.He studied hard so that he could catch up with his classmates.9.Since you are very busy,I wont trouble you.10.Even if(though)I fail.Ill never lose heart.11.Once you begin the work,you must continue.12.Although the su
8、n was shining,it wasnt very warm.,地点,目的,原因,让步,时间,让步,三、时间状语从句重难点,1、when,while,as引导时间状语从句（1）when的用法A.when引导时间状语从句既可指时间点，也可指时间段（即：从句动词可以是短暂的也可是延续的）。For example:当我住在那里时，我常在周日去海滨。When I lived there,I used to go to the seashore on Sundays.他到上海时，他妈妈到车站接他。When he arrived in Shanghai,his mother met him at th
9、e station.,（1）when的用法B.When 在下列句式中译为“就在那时,这时”，可以看成是并列句，这种用法的when一般位于句末。For example:我正在穿衣服，这时电话响了。I was putting on my clothes when the telephone rang.我正要锁门，这时电话响了。我刚锁上门，这时电话响了。,时间状语从句练习一 1.(04北京春)We were swimming in the lake _ suddenly the storm started.A.when B.while C.until D.before2.(02上海)He was a
10、bout to tell me the secret _ someone patted him on the shoulder.A.as B.until C.whileD.when 3.(05上海)He transplanted the little tree to the garden _ it was the best time for it.A.where B.when C.thatD.until 4.(05福建)Did Jack come back early last night?Yes.It was not yet eight oclock _ he arrived home.A.
11、Before B.when C.thatD.until 5.(06辽宁)He was about halfway through his meal _a familiar voice came to his ears.A.why B.where C.when D.while,A,D,B,B,C,（2）while的用法A.while只能指一段时间，从句中的动词必须是延续性动词。强调某一段时间内主句动作发生，相当于during the time that.;从句常用进行时态。For example:当别人工作时，请不要这么大声说话。Please dont talk so loud while ot
12、hers are working.当我在做作业时，妈妈在做饭。My mother was cooking while I was doing my homework.B.while作为并列连词，意为“而，却”，表示同类对比。For example:我喜欢看电视，而他喜欢读书。I like watching TV,while he likes reading.,（2）while的用法C.while也可用来引导让步状语从句，意为“尽管，虽然”，相当于althoughFor example:尽管我承认这些问题很难，但我并不同意他们无法解决。While I admit that the problem
13、s are difficult,I dont agree that they cant be solved.D.趁的情况赶紧做,否则来不及了 For example:趁热打铁。Strike while the iron is hot.,时间状语从句练习二6.(06天津)The cost of living in Glasgow is among the lowest in Britain,_ the quality of life is probably one of the highest.A.since B.when C.as D.while7.(04年江苏)_ I accept that
14、 he is not perfect,I do actually like the person.A.While B.Since C.Before D.Unless8._it is true that a students most important goal is to do well in his or her studies,it doesnt need to be the only goal.A.when B.As C.While D.Before9.Mary made coffee her guests were finishing their meal.A.so that B.a
15、lthough C.while D.as if,D,A,C,C,（3）as的用法A.as可用来引导时间状语，常可和when换用，但较强调主从句动作同时发生，意为“一边一边”，引出伴随动作For example:她一边做作业，一边听音乐。She was doing her homework as she was listening to the music.B.as还可说明两种正在发展或变化的情况，“随着.”的意思，表时间的推移。For example:随着时间的流逝，我开始意识到学习的重要性。As time went by,I began to realize the importance o
16、f learning.随着年龄的增长，我对音乐更加感兴趣。As I grow older,I become more interested in music.,（3）as的用法C.as也可用来引导原因状语从句，意为“因为”For example:因为她今天有时间，所以她想去购物。As she is free today,she would like to do some shopping.D.as还可用来引导让步状语从句（用倒装结构），意为“尽管”。For example:尽管他很累，他却拒绝休息。Tired as he was,he refused to take a rest.,2、bef
17、ore、after引导时间状语从句（1）before和after表示的是两个时间或两个事件之间的先后关系；引导时间状语从句最基本的意思就是“在.之前”、“在之后”；before从句的动作通常发生在主句动作之后，如果从句用过去时，主句一般要用过去完成时；after从句的动作通常发生在主句动作之前，如果主句用过去时，从句一般要用过去完成时。For example:在我们看到陆地前，我们已经航行四天四夜了。（我们航行了四天四夜才看到陆地。）We had sailed four days and four nights before we saw land.他在这家工厂工作十年以后就出国了。After
18、 he had worked in the factory for ten years,he went abroad.,（2）before时间状语从句的特殊句式主句包含表段时间的短语、且为肯定句常译成“（之后）才”；主句包含表段时间的短语、且为否定句常译成“就”；这样的句型有一般过去时、过去将来时、一般将来时三个时态。,For example:再过两年他才大学毕业。It will be two years before he graduates from the university.两年之后他才大学毕业。It was two years before he graduated from th
19、e university.他不多久就会从大学毕业了。It will not be long before he graduates from the university.他不多久就从大学毕业了。It was not long before he graduated from the university.,2、before、after引导时间状语从句（3）before的特殊意思For example:趁着还没忘记我要把它写下来。Ill write it down before I forget it.我还未来得及见他，他就离开了。He had left before I could see
20、him.,时间状语从句练习三10.(03年北京)He made a mistake,but then he corrected the situation _ it got worse.A.until B.when C.beforeD.as11.(04福建)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.when12.(06四川)Why didnt you tell him about th
21、e meeting?He rushed out of the room _ I could say a word.A.before B.untilC.whenD.after 13.(05北京春)It is almost five years _ we saw each other last time.A.before B.since C.after D.because,C,C,A,B,3、until,till,notuntil引导时间状语从句（1）until/till从句用于肯定句时，主句的动词是延续性动作，表示“某动作一直延续到某时间点才停止”，译为“直到为止”。For example:我们
22、一直在那里待到雨停了。We stayed there until the rain stopped.（2）until从句用于否定句时，主句的动词是短暂性动作，表示“某动作直到某时间才开始”，译为“直到 才”。For example:我们一直到雨停了才离开。We didnt leave until the rain stopped.,3、until,till,notuntil引导时间状语从句（3）用于强调句式“It is/was not until.that.”For example:直到雨停了我们才离开。It was not until the rain stopped that we lef
23、t.（4）not until放在句首时主句要进行部分倒装For example:我们一直到雨停了才离开。Not until the rain stopped did we leave.,时间状语从句练习四14.(03北京春)Was his father very strict with him when he was at school?Yes.He had never praised him _ he became one of the top students in his grade.A.after B.unless C.until D.when15.(03上海)A good story
24、teller must be able to hold listeners curiosity _he reaches the end of the story.A.when B.unless C.after D.until16.It was not _ she took off her dark glasses_ I realized she was a famous film star.A.when;that B.until;that C.until;when D.when;then,C,D,B,4、since引导时间状语从句since从句一般要用非延续性动词，意为“自从时起”，主句要用完
25、成时态For example:他大学毕业后一直在这座城市工作。He has worked in this city since he graduated from the college.注意（1）since所引导从句如果用延续性或状态动词的一般过去时，所表示的就是动作或状态的完成或结束。翻译：Since Tom lived in Nanjing,I have not heard from him.自从Tom离开南京以后，我没有收到过他的信。（2）作介词时，since后要接时间点，而不是时间段；since还可作副词，后来,与完成时连用。判断正误：He has writing the book
26、since five years 翻译：她丈夫十年前就去世了，从那以后她没再结婚。Her husband died ten years ago,but she hasnt remarried since.（3）It is+段时间+sincedid/was,ago.,5、表示“一就”句型（1）as soon as/onceFor example:我一到上海就会写信给你。As soon as I arrive in Shanghai,I will write to you.你一旦开始这项工作，就必须继续下去。Once you begin the work,you must continue.,5、
27、表示“一就”句型（2）名词短语转变成连词：the moment,the instant,the minute,the secondFor example:他一听说发生了事故，就到现场来了。He came to the spot/scene the moment he heard of the accident.（3）副词转变成连词：instantly,immediately,directly For example:他们一得到口信就把消息告诉我了。They told me the news immediately they got the message.,5、表示“一就”句型（4）no so
28、oner.than,hardly/scarcely.when A.意思：“一就”B.时态：主句（no sooner/hardly/scarcely）用过去完成时，从句(than/when)用一般过去时。C.倒装：结构中的否定词（no sooner/hardly/scarcely）放在句首时，主句（紧跟其后的句子）要倒装。For example:我刚到车站，火车就开走了。I had no sooner got to the station than the train left.句型转换（no sooner）置于句首：No sooner had I got to the station than
29、 the train left.,5、表示“一就”句型（5）介词短语on doing sth./on ones+n.作时间状语,意为“一就”For example:美国学生一到来，我们就给他们热情地欢迎。On arriving,we gave the American students a warm welcome.句型转换:On their arrival,we gave the American students a warm welcome.,时间状语从句练习五17.(01北京春)Did you remember to give Mary the money you owed her?Y
30、es.I gave it to her _ I saw her.A.whileB.the moment C.suddenlyD.although18.(1998上海)I thought her nice and honest _ I met her.A.first time B.for the first time C.the first timeD.by the first time19._ entered the office when he realized that he had forgotten his report.A.He hardly had B.Had he hardly
31、C.Hardly had heD.Hardly he had,B,C,C,6、一些含有time的名词短语如the first/second/last time,every time,each time,next time,by the time等，也可引导时间状语从句。For example:我第一次开车时，感觉特别紧张。The first time I drove the car,I felt very nervous.下次你来时，请带上你的作文。Next time you come,please bring your composition.到你毕业的时候，我们已经在澳大利亚居住一年了。B
32、y the time you graduate,we will have lived in Australia for one year.,四、地点状语从句重难点,1、where/whereverWhere指“在某个地方”，wherever指“在任何一个地方”；可以放在主句前，也可以放在主句后。For example:有志者事竟成/有水的地方就有生命。Where there is a will,there is a way.Where there is water,there is life.You should put the book where it was.你应该把书放在原来的地方。无
33、论你去哪里都要遵守法律。Wherever you go,you must obey the law.,2、where引导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where引导地点状语从句时从句本身就是主句动作发生的场所。For example:一般而言，有工厂的地方空气都会被严重污染。Generally,air will be heavily polluted in the places where there are factories.Generally,air will be heavily polluted where there
34、are factories.,1.After the war，a new school building was put up _ there had once been a theatre.A.thatB.whereC.whichD.when2.-Dont look down upon Bob.He has his own advantages.-Oh,yes._ others are weak,he is strong.A.If B.WhenC.Where D.Though3.-The thread of my kite broke and it flew away.-I had told
35、 you it would easily break _it was the weakest A.when B.where C.unless D.since,地点状语从句练习,五、原因状语从句重难点,原因状语从句由because,as,since,now(that)（既然）,in that（因为，多于口语中）,seeing(that)（鉴于，由于）,considering that（考虑到）等引导。1、becausebecause用来回答why提出的问题，表示某件事发生的直接原因或理由，用于告知对方不知道的原因。在这几个连词中，它表示原因的语气最强，可用于强调句。For example:昨天我
36、回来晚了，因为我值班。I came back late yesterday because I was on duty.It was because I was on duty that I came back late yesterday.,2、since,now thatsince、now that常表示关系上的自然结果，特别用于原因已经清楚了的事情，说话人根据这个事实得出某一种结论。其语气比because要弱，一般译成“既然”，往往放在主句前。For example:既然你已经知道了这个秘密，我就不必说了。Since you have known the secret,I neednt
37、say anything about it.3、asas常用于表示十分明显的原因，只是对主句的附带说明，重点放在主句上，语气较弱，常译成“由于”，可放在主句前或主句后。For example:由于他英语懂得不多，他在字典中查阅这个单词。As he didnt know much English,he looked up the word in the dictionary.,4、forfor也可以表示原因，属并列连词，不是说明直接原因，而是对某种情况加以推断或解释，对前一分句进行附加说明；它引出的分句必须放在另一分句后。For example:门关着，屋子里肯定没人。There must be
38、 no one in the house，for the door is closed.单项选择：The day must be breaking,_ the birds have begun singing.A.because B.as C.for D.since,5、seeing(that),considering(that),in that这几个连词 和since,as 意义相似，他们都有“鉴于某个事实、原因是”的意思。For example:鉴于他病情严重，我们派人去请医生了。Seeing that he was badly ill,we sent for the doctor.,六、
39、条件状语从句重难点,由if,unless（if.not）,so/as long as,supposing(that)（假设）,provided/providing(that)（假若）,in case（万一,以防）,on condition that（条件是.），so/as far as（就.而言）等引导1、if/unlessif表示正面的条件，意为“如果”；unless表示反面的条件，相当于（ifnot），意为“除非，如果不”。For example:如果他12点前不来，我们就不等他了。We wont wait for him,if he doesnt come before 12oclock
40、.We wont wait for him,unless he comes before 12oclock.,2、supposing(that),provided/providing(that),on condition that，in case,so/as long as这些连词词组意思相近，有“如果，假如，假设，在条件下”等意义For example:只要你继续努力，你就会成功。So long as you keep on trying,you will surely succeed.假如约翰来了，请告诉他等一下。In case John comes,please tell him to
41、wait.3、as/so far as就而言 For example:据我所知，那本书下月出版。So far as I know,the book will be published next month.,4、only if if onlyonly if引导的从句用陈述语气，意为“只要”；if only引导的从句要用虚拟语气，意为“但愿，要是就好了”For example:只要你继续努力，你就会成功。Only if you keep on trying,you will surely succeed.如果当初我们听取了你的建议就好了。If only we had followed your
42、advice!,5、条件状语从句的虚拟if引导的条件状语从句若与过去或现在事实不符，或对未来进行不可能的假设，就要用虚拟语气。For example:如果有一天机器人掌控了世界，将不会再有友谊。If Robots should control the world some day,here would be no friendship.如果考试中Tom能再仔细些，他就已经通过考试了。If Tom had been more careful in the exam,he would have passed it already.如果我是一个老师，我会对我的学生很严格。If I were a te
43、acher,I would be strict with my students.,6、条件状语从句的省略与倒装If引导的虚拟条件从句中谓语动词有were,had或should,可以把if省去，而把were，had或should移到主语前构成倒装。,条件状语从句练习1、It is known to all that _ you exercise regularly,you wont keep good health.（05重庆卷）A.unless B.whenever C.although D.if 2.You will be late _ you leave immediately.A.un
44、less B.until C.if D.or3.The little boy wont go to sleep his mother tells him a story.A.or B.unless C.but D.whether4、_ I can see,there is only one possible way to keep away from the danger.（04北京春季）A.Because B.As far as C.Even if 5、I always take something to read when I go to the doctors_ I have to wa
45、it.Ain case Bso that Cin orderDas if,A,A,B,B,A,七、目的状语从句重难点,由so that（以便），in order that（为了），for fear that（=in case）（以免），lest（以防）引导，谓语常含may,might,can,could,will,would,should等情态动词。从句往往放在主句之后，主从句之间不用任何标点符号。1、so that/in order thatFor example:他们比往常更加努力工作，为了能提前完成工作。They worked harder than usual in order tha
46、t they could finish the work ahead of time.They worked harder than usual in order to finish the work ahead of time.老师有意提高他的声音，以便后面的同学能听得更清晰。The teacher raised his voice on purpose so that the students in the back could hear more clearly.,2、lest/for fear that/in case这些连词词组意思相近，意思是“以防、以免”；lest从句一般用虚拟语
47、气，形式“should+动词原形”或只用原形；for fear that从句和in case从句一般用虚拟语气，但有时也可以用陈述语气。For example:多穿点衣服，以免感冒。Put on more clothes lest/for fear that/in case that you should catch a cold.他把相机准备好，万一看到适合拍照的东西。He had his camera ready in case he saw something that would make a good picture.单选：I hurried _ I wouldnt be late
48、for class.A.since B.so that C.as if D.unless,八、结果状语从句重难点,常用的连词有so that，so.that,such.that；结果状语从句中一般无情态动词1、so that，so.that,such.thatFor example:他们比往常更加努力工作，结果提前完成了工作。They worked harder than usual，so that they finished the work ahead of time.They worked hard enough to finish the work ahead of time.老师说话
49、声音很大，因此后面的同学听得很清晰。The teacher spoke so loud that the students in the back heard clearly.,2、so/suchthat所用句式For example:这是一本非常有意思的小说，因此我们大家都想阅读它。这本小说非常有意思，因此我们大家都想阅读它。这个图书管里有这么多有意思的小说，因此我们大家都喜欢到那儿。天气那么糟糕，因此我们大家都待家里了。It was such bad weather that all of us stayed at home.,3、so that引导结果状语从句与目的状语从句的区别（1）目
50、的状语从句中的动词要用may(might),can(could),should,would等情态动词，表示某种可能性，是主观意念，放在主句后时，与主句之间一般不用逗号隔开；（2）结果状语从句中一般没有情态动词，表示的是客观事实，放在主句后，与主句之间一般要用逗号隔开。For example:他们比往常更加努力工作，为了能提前完成工作。They worked harder than usual so that they could finish the work ahead of time.They worked harder than usual，so that they finished t
