高中英语从句总复习.doc

高中英语从句总复习1）表语从句1.定义：用作表语的从句叫做表语从句。2.构成：关联词+简单句3.引导表语从句的关联词的种类：（1）从属连词that.如：The trouble is that I have lost his address.麻烦是我把他的地址丢了。（2）从属连词whether，as，as if.如：He looked just as he had looked ten years before.他看起来还与十年前一样。The question is whether they will be able to help us.问题是他们是否能帮我们。注：从属连词if一般不用来引导表语从句，但as if却可引导表语从句，如：All this was over twenty years ago，but its as if it was only yesterday.这都是20多年前的事了，但宛如昨天一样。能跟表语从句的谓语动词一般为系动词be，seem，look等。如：It looked as if it was going to rain.看起来天要下雨了。（3）连接代词who，whom，whose，what，which，whoever，whatever，whichever连接副词 where，when，how，why.如：The problem is who we can get to replace her.问题是我们能找到谁去替换她呢。The question is how he did it.问题是他是如何做此事的。That was what she did this morning on reaching the attic.那就是她今晨上了阁楼干的。解释：1.连词because可引导表语从句。如：I think it is because you are doing too much.我想这是因为你做得太多。2.在一些表示“建议、劝说、命令”的名词后面的表语从句中，谓语动词用虚拟语气。should+动词原形表示，should可省略。如：My suggestion is that we （should）start early tomorrow.我的建议是我们明天一早就出发。2）主语从句1.定义：用作主语的从句叫做主语从句。2.构成：关联词+简单句3.引导主语从句的关联词有三类：（1）从属连词that.如：That they were in truth sisters was clear from the facial resemblance between them.很明显，她们确是亲姐妹，她们的脸型很相似。（2）从属连词whether.如：Whether hell come here isnt clear.他是否会来这里还不清楚。（3）连接代词who，whom，whose，what，which，whoever，whatever，whichever连接副词 where，when，how，why.如：What she did is not yet known.她干了什么尚不清楚。How this happened is not clear to anyone.这事怎样发生的，谁也不清楚。Whoever comes is welcome.不论谁来都欢迎。Wherever you are is my home my only home.你所在的任何地方就是我的家我唯一的家。解释：1.主语从句能用it作形式上的主语。常以it作形式主语的句型有：A.It+be+形容词（obvious，true，natural，surprising，good，wonderful，funny，possible，likely，certain，probable，etc.）+that从句。如：It is certain that she will do well in her exam.毫无疑问她考试成绩会很好。It is probable that he told her everything.很可能他把一切都告诉她了。B.It+be+名词词组（no wonder，an honor，a good thing，a pity，no surprise，etc.）+that从句。如：Its a pity that we cant go.很遗憾我们不能去。Its no surprise that our team should have won the game.我们没赢这场比赛真意外。C.It+be+过去分词（said，reported，thought，expected，decided，announced，arranged，etc.）+that从句。如：It is said that Mr.Green has arrived in Beijing.据说格林先生已经到了北京。It is reported that China has sent another man-made earth satellite into orbit.据报道中国又成功地发射了一颗人造地球卫星。D.It+seem，happen等不及物动词及短语+that从句。如：It seems that Alice is not coming to the party at all.Alice似乎不来参加晚会。It happened that I was out that day.碰巧我那天外出了。E.It+doesnt matter（makes no difference，etc.）+连接代词或连接副词引起的主语从句。如：It doesnt matter whether she will come or not.她是否来这无关紧要。It makes no difference where we shall have the meeting.我们在哪里开会毫无区别。F.当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置。如：Is it true that the scientist will give us a lecture next week？ 下周那位科学家将给我们作报告是真的吗？Does it matter much that they will not come tomorrow？ 他们明天不来很要紧吗？G.当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。如：How strange it is that the children are so quiet！ 孩子们这么安静真奇怪！2.注意连接代词whoever，whatever，whichever等引导主语从句的含义。Whoever comes will be welcome.（whoever=the person who）来的人将受到欢迎。Whatever he did was right.（whatever=the thing that）他所做的事情是正确的。Whichever of you comes in will receive a prize.（whichever=anyone of you who）你们当中不论哪个进来将会得到奖3）宾语从句1.定义：用作宾语的从句叫宾语从句。2.构成：关联词+简单句。3.引导宾语从句的关联词有三类：（1）从属连词that.如：He told us that he felt ill.他对我们说他感到不舒服。I know he has returned.我知道他已经回来了。注： that在引导宾语从句时也并不是任何情况下都可以省略。在以下情况下，that不能省略。1.Everybody could see what happened and that Tom was frightened.（and连接两个宾语从句，that宾语从句放在and的后面时，that不能省略。）大家都会看出所发生的事情并知道Tom非常害怕。2.I know nothing about him except that he is from the south.（that引导的宾语从句作介词宾语时，that不能省略。）对他我一无所知，只知道他是南方人。3.That he ever said such a thing I simply dont believe.（that从句位于句首时，that不可省略。）我简直不相信他曾说过这样的话。4.We decided，in view of his special circumstances，that we would admit him for a probationary period.（主句谓语动词与that从句之间有插入语，that不可省略。）鉴于他的特殊情况，我们决定应允他一段试用期。（2）从属连词if/whether.如：I doubt whether he will succeed.我怀疑他是否会成功。I dont know if you can help me.我不知道你能否帮助我。（3）连接代词who，whom，whose，what，which，whoever，whatever，whichever连接副词 where，when，how，why.如：Who or what he was，Martin never learned.他是什么人？他是干什么的？马丁根本不知道。I wonder what hes writing to me about.我不知道他要给我写信说什么事。Ill tell you why I asked you to come.我会告诉你我为什么要你来。You may do what you will.你可做任何你想做的事。（1）介词宾语从句宾语从句也可用作介词的宾语。如：He was deeply displeased by what had occurred that day.他对那天发生的事感到很不快。I walked over to where she sat.我走向她坐的地方。I am curious as to what he will say.我很想知道他要说什么。Your success will largely depend upon what you do and how you do it.你是否成功将主要取决于你做什么和怎样做。有时介词可以省略。如：I dont care （for）who marries him.我不管谁跟他结婚。Be careful （as to）how you do that.你要注意做这件事的方式。解释：1.如果宾语从句后还有宾语补足语，则用it作形式宾语，而将宾语从句后置。如：We thought it strange that Xiao Wang did not come yesterday.我们认为小王昨天没来是奇怪的。He has made it clear that he will not give in.他已表明他不会屈服。2.作介词的宾语：连词that引导的名词性从句很少作介词的宾语，只用在except，but，in后。其他一些介词的宾语从句如果由连词that引导，则需用it先行一步，作形式宾语。如：He is a good student except that he is careless.他是一个好学生，只是有点粗心。You may rely on it that I shall help you.你可以指望我会帮助你的。介词宾语不可以用which来引导，而要用what来引导。如：Are you sorry for what youve done？你为你所做的一切感到内疚吗？3.某些形容词或过去分词后常接宾语从句，这类形容词或过去分词有sure，glad，certain，pleased，happy，afraid，surprised，satisfied等，连词that可省略。如：I am not sure what I ought to do.我不能确定我该做什么。Im afraid you dont understand what I said.恐怕你没领会我说的意思。Im surprised that I didnt see all that before.我好奇怪，我以前没看到过。Mother was very pleased her daughter had passed the exams.妈妈为她的女儿通过了考试而感到高兴。4.连词whether （or not）或if引导的宾语从句if和whether引导的宾语从句可以互换使用，但whether常和or not连用，if一般不与or not连用。如：I wonder whether it is true or not.我不知它是真是假。用if引导宾语从句如果会引起歧义，应避免使用if而用wheter.试比较：Please let me know if you want to go.Please let me know whether you want to go.if从句可理解为宾语从句，意为“请告诉我你是否想去”；此句又可理解为条件状语从句意为“如果你想去的话，请告诉我一声”。5.宾语从句的否定转移。在think，believe，suppose，expect等动词后的宾语从句，有时谓语尽管是否定意思，却不用否定形式，而将think等动词变为否定形式。如：I dont think you are right.我认为你错了。I dont believe they have finished their work yet.我相信他们还未完成他们的工作。I dont suppose he cares，does he？ 我想他不在意，是吗？6.宾语从句的时态变化规律：（1）当主句是一般现在时态时，从句可根据需要用任何时态。（2）当主句是一般过去时态时，从句只能使用过去范围内的任何时态。但客观真理除外。如：The teacher said that the earth goes round the sun.老师说地球绕着太阳运行。4）同位语从句1.定义：用作同位语的从句叫做同位语从句。2.用法：同位语从句的先行词多为fact，news，idea，thought，question，reply，report，remark等，关联词多用从属连词that.如：They were all very much worried over the fact that you were sick.对你生病这件事，他们都很焦虑。Where did you get the idea that I could not come？你在哪儿听说我不能来？Early in the day came the news that Germany had declared war on Russia.德国已对俄国宣战的消息一大早就传来了。注：同位语从句偶尔由从属连词whether引导。如：I have no idea whether hell come or not.我不知道他是否来。连接代词who，which，what和连接副词where，when，why，how亦可引导同位语从句。The question who should do the work requires consideration.谁该干这项工作，这个问题需要考虑。We havent yet settled the question where we are going to spend our summer vacation.到哪儿去度暑假，这个问题我们还没有决定。It is a question how he did it.那是一个他如何做了此事的问题。解释：1.that引导的同位语从句与定语从句之区别that引导的同位语从句that引导的定语从句句法功能上that只起连接从句的作用，无意义。在从句中不充当句子成分。不可省。that替代先行词在从句中不仅起连接作用，还充当一个句子成分。如在从句中作动词的宾语时可省略。意义上从句是被修饰名词的内容。从句起限定作用，是定语如：The news that Mr.Li will be our new English teacher is true.（同位语从句，that不可省。）李先生将是我们的新英语老师这个消息是真的。The news （that）he told me yesterday is true.（定语从句，that在从句中作told的宾语，可省。）他昨天告诉我的消息是真的。2.一些表示“建议、命令、要求”的名词后所跟的同位语从句中，谓语动词用虚拟语气should+动词原形表示。should可省。如：This is our only request that this （should）be settled as soon as possible.这就是我们唯一的请求：尽快解决这个问题。（6）不定式的构成1.不定式的构成不定式是由不定式符号to+动词原形构成，在某些情况下to也可省略。不定式一般有时式和语态的变化，通常有下表中的几种形式（以do为例）：主动式 to do被动式 to be done完成式to have done /to have been done进行式 to be doing完成进行式 to have been doing1）不定式的一般式不定式的一般式所表示的动作通常与主要谓语的动作同时或几乎同时发生，或是在它之后发生。如：They invited us to go there this summer.他们邀请我们今年夏天去那儿。He stood aside for me to pass.他站到一边让我通过。2）不定式的完成式不定式的完成式所表示的动作在谓语所表示的动作之后发生，它在句中可作表语、状语、宾语，有时也可作主语、定语等。如：She seemed to have heard about this matter.她似乎已听说过这件事。I meant to have told you about it，but I happened to have an important thing to do.我本来想告诉你这件事的，但我碰巧有一件重要的事要做。3）不定式的进行式不定式的进行式表示正在进行的与谓语动词同时发生的动作。它在句中可以用作除谓语以外的所有成分。如：Its nice of you to be helping us these days.你真好，这些天一直帮我们。He pretended to be listening to the teacher carefully.他假装在认真地听老师讲课。4）不定式的完成进行式如果不定式表示的动作是谓语所表示时间之前一直进行的动作，就需要用完成进行式。如：They are said to have been working in Tibet for 20 years.据说他们已经在西藏工作20年了。We are happy to have been helping each other these days.我们很高兴这些天能互相帮助。5）动词不定式的否定形式是由not或never加不定式构成。如：Try not to be late again next time.尽量下次不要再迟到。He wished us never to meet her again.他希望我们永远不要再见到她。6）疑问词+动词不定式：不定式和疑问词whether，what，which，whom，where，when，how，why等连用可以在句中起名词的作用，通常跟在tell，know，show，decide，learn，wonder，explain，advise，teach，discuss，find out等动词后面作宾语，有时也可以充当主语、表语等。如：On hearing the news，he didnt know whether to laugh or to cry.听到这个消息，他不知道该哭还是该笑。When to hold the meeting has not decided.什么时候开会还没有决定。介词后一般不直接接不定式，但可以接疑问词+不定式短语作宾语。如：Mary gave some advice on how to learn English.玛丽提了一些如何学习英语的建议。I have no idea of how to do it.我不知道该怎么做。高中英语第一轮复习从句方面的讲解最佳答案 一、状语从句地点状语从句 地点状高考资源网语从句通常由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。方式状语从句 方式状语从句通常由as, (just) asso, as if, as though引导。1） as, (just) asso引导的方式状语从句通常位于主句后，但在(just) asso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。 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 didnt 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，结果状语从句 结果状语从句常由so that 或 suchthat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 foolso nice a flower such a nice flowerso many / few flowers such nice flowersso much / little money. such rapid progressso 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。）sothat与suchthat之间的转换既为 so与such之间的转换。The boy is so young that he cant go to school.He is such a young boy that he cant go to school 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.Lets go out for a walk unless you are too tired.If you are not too tied, lets go out for a walk.典型例题You will be late _ you leave immediately.A. unlessB. untilC. ifD. 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 its 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Well make a trip even though the weather is bad.4) whetheror-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。 她直到6点才到。 表示一就的结构hardly/scarcelywhen/before, no soonerthan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 二、定语从句定语从句 定语从句（Attributi 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。关系代词引导的定语从句 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 pass 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） 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。 判断关系代词与关系副词 方法一： 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.Ill never forget the days when I worked together with you.方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。例1. Is this museum _ you visited a few days age?A. whereB. thatC. on whichD. the one例2. Is this the museum _ the exhibition was held.A. whereB. thatC. on whichD. the one答案：例1 D，例2 A例1变为肯定句： This museum is _ you visited a few days ago. 。 限制性和非限制性定语从句 1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，例如：This is the house which we bought last month.这是我们上个月买的那幢房子。（限制性）The house, which we bought last month, is very nice.这幢房子很漂亮，是我们上个月买的。（非限制性）2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如：Charles Smith, who was my former teacher, retired last year. 查理史密斯去年退休了，他曾经是我的老师。My house, which I bought last year, has got a lovely garden.我去年买的的那幢房子带着个漂亮的花园。This novel, which I have read three times, is very touching. 这本小说很动人，我已经读了三遍。3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数，例如：He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思，这使我心烦。Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。说明：关系代词that和关系副词why不能引导非限制性定语从句。 介词+关系词 1）介词后面的关系词不能省略。2）that前不能有介词。3） 某些在从句中充当时间，地点或原因状语的介词+关系词结构可以同关系副词when 和where 互换。This is the house in which I lived two years ago.This is the house where I lived two years ago.Do you remember the day on which you joined our club?Do you remember the day when you joined our club? as, which非限定性定语从句 由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。As一般放在句首，which在句中。As we know, smoking is harmful to ones health.The sun heats the earth, which is very important to us.典型例题1）Alice received an invitation from her boss, _came as a surprise.A. itB. thatC. whichD. he答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后句成为句子，两个独立的句子不能单以逗号连接。况且选he句意不通。2）The weather turned out to be very good, _ was more than we could expect. A. whatB