第二十章+状语从句+讲义+2023届高考英语语法专题一轮复习.docx

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1、第二十章状语从句复合句是高考英语考查的重点内容之一，每年的考点仅单项填空就多达三、四道小题。近年来，状语 从句的考点比重有逐年增长的趋势。因此，同学们应对状语从句的学习与掌握引起足够的重视。状语从句在复合句里起状语作用，修饰主句中的动词、形容词或副词。状语从句由从属连词引导，从 属连词在从句中不充当成分。状语从句根据它们表达的意思不同，可分为时间、地点、原因、条件、目的、 结果、让步、比较等状语从句。一、时间状语从句常用来引导时间状语从句的从属连词有:when（当 的时候），whenever（每 当）,after（在 之后）， before（在 之前），as（当 ；一边 边），as soon

2、as/hardly-when/no soonerthan （一 就），while（在期间），till/until（直到）,since（自从）,once（一旦就）。如果主句是一股将来时，在时间状语从句中用一般现在时。如：As the students watched him quietly, he mixed three liquids together.在学生们静静地看着他 的时候，他把3种液体搅拌在一起。When this soi 1 is destroyed, the forest land wi 1 become sand again. 土壤被毁坏之后，林地 又会变成沙地。They tr

3、avelled until they came to a wild part of the forest.他们一直走到森林中一块野地里 才停下来。I* 1 return it as soon as I can.我会尽快归还的。注意1 while, when和as的用法比较while意为“当时候”，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。如：Dont talk so loud while others are working.别人工作时，请勿大声说话。when引导的时间状语从句，通常指时间的一点，从句的谓语动词用终止性动词；但它也可以指一段时

4、间，从句中用持续性动词。when引导的从句表示的动作或状态，可以与主句表示的动作或状态同时发生， 也可以是先后或紧接着发生。如：He was only ten when he began to work.他 10 岁时就开始干活了。It was raining hard when I got there.我到达那里时,正在下大雨。as表示“当时候，往往可以和when互换，但它通常表示动作发生的过程，而不表示状态。在表 示随着或一边一边”的意思时,要用as。如:As we walked we talked.我们边走边谈。注意2 since和before的用法比较两者均可用于It+be. +sin

5、ce/before-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. o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.。农过去和将来时，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.如：It is 30 years since he

6、 joined 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。注意3名词、副词作连词用有时名词every time（每次），the next time（下一次）,the next day（第二天），the moment（一就）等，也可起从屈连词的作用，引导时间状语从句。如：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。Don* t stop every time you

7、come to a word or phrase you do not know.不要每遇到一个不认识的 单词或短语就停下来。I didnt have a penny the last time I saw you.上一次见你时，我身无分文。The moment he reached the country, he started his search.他一到达这个国家，就开始他的探寻 工作。有些副词如immediately, instantly, directly等也可起从属连词的作用，引导时间状语从句，表示 一就”的意思。如：The young lady rushed inlo the r

8、oom immediately she heard the noise.那位年轻女士一听到响 声就冲进房间。Directly the master came in, everyone was quiel.校长一进来，大家就安静下来。二、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。如:I dont drink beer, because I have to drive home after the party.我不喝啤酒，因为聚会后我 要开车回家。Wear strong shoes as we shal 1

9、do a lot of walking.穿上结实的鞋子，因为我们要走许多路程。Why do people come to his lecture since he is difficult to understand?既然他的话难以听懂, 人们为什么还来听他的演讲呢？注意because, since, as, for 和 now that 的用法比较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。如：He is absent today because he is ill.他今天缺课，因为他病了。since表示

10、对方已经知晓、无须加以说明的原因或事实，语气比because梢弱。如：1, 11 do it for you since you are busy.既然你忙，我来替你做吧。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，比较口语化。如： As you object, Ill change the plan.由于你反对,我将改变计划。for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，它们之间用逗号隔开。如：It must have rained last night, for the ground

11、 is wet this morning.昨晚准是下雨今天早上地面还是湿的。now that意为既然，与since同义，但更突出事实本身。如:Now that I am well again, I can go on with my work.我既然恢复了健康，那就可以继续工作了。 三、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）引导。如:We should go where we are needed.我们应该到需要我们的地方去。Where there is no rain, farming is difficult.没有雨水的地方,农作是困难的。

12、You can take it with you wherever you go.不论走到什么地方，你都可随身携带它。四、让步状语从句让步状语从句在中学英语中较为常见，高考也常常涉及。本文结合历年高考试题，总结归纳其常见考 点。（-）* although, though 引导，意为“虽然二（二）由even if, eventhough引导，意为“即使：尽管二 （三）由as引导，表示“尽管”。I have never seen anyone whos as capable as John.A. As long as I have traveled B. Now that I have trave

13、led so muchC. Much as I have traveled D. As I have traveled so much分析Co as引导让步状语从句，从句中的表语、状语或主要动词应移到句首。若表语是名词，该 名词无冠词修饰。如：Chi Id as he is, he knows much English.教你巧学巧记：浅谈as引导的让步状语从句as除了引导原因状语从句、时间状语从句外，还可引导让步状语从句，但从句须用倒装语序。这时， as意为“虽然”、“尽管“，等于though。下面谈谈三种倒装情况：一、如果句中谓语是“连系动词+表语”，则将表语放在as之前。如：Long as

14、 the sentence is, its structure is very simple. 句子虽长，但其结构很简单。注：如果表语为单数可数名词，这个名词不带冠词。如：Child as he is, he knows a lot.虽然他还是个孩广，却懂的很多。二、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。如：Try as I might. I couldn t lift the stone. 我使多大劲儿也搬不动这块石头。 Praised as he was, he remained modest. 他虽然受到表扬，但仍然保持着谦虚。三、如果句中谓语仅有实意动词，则将实意

15、动词（原形）放在as之前，并在主语后面加助动词do。如： 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。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。如: Again and again as he failed, he didnt 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。（四

16、）由 no matter 引导，表示“不管：无论no matter 与 whal, which, who how, when, where 等疑问代词或副词连用。(五)山疑问词+ ever 引导，表示“不管，不论”。11 whatever, whichever, whoever, however, whenever, wherever 等。VI.由whether. or引导,表示“不论还是”。本考点近年高考尚未涉及。In my opinion, they will carry on the work or not they can get the money they need.A. unti

17、1 B. unless C. whether D. though分析C.五、条件状语从句条件状语从句一般由if(如果),unless(除非),once(一旦；只要),as/so long as(如果；只要),in case(假使)引导。除这些词的语义差别外，需注意的是，条件状语从句也只能用一般现在时表示一般将来 时。如：Dont touch anything unless your teacher tells you to.除非老师吩咐,否则就不要碰任何东西。You may slay in my room, as long as you are quiet.只要你安静，你可以呆在我的房间。If

18、 you work hard , you are sure to succeed.你如果努力工作的话，肯定会成功。教你巧学巧记：“条件” 表示法种种条件即一个动作或一种情况发生或存在的前提，究其种类，有真实条件、虚拟条件之分。本文仅对儿 种常见的条件概念表示法分别简述如下：一、从句常用来引导条件从句的连词有：if, unless, even if, in case, provided (that). providing (that), suppose, supposing, as long as so long as so far as on condition that 等。例如：If we

19、 fight resolutely,the enemy can be defeated.如果我们坚决斗争，敌人是可以击败的。1 won t go to the party unless I am invited.要是没人邀请，我是不会去参加聚会的。We wouldn, t lose heart even if we should fail ten times.即使失败十次，我们也不灰心。We d better take our raincoats in case it should rain.我们最好带着雨衣，以防下雨。Providing(that)you let me know in goo

20、d time,I 11 come.要是你及时通知，我会来的。Suppose (or Supposing) he does not come, what shall we do?如果他不来，我们该怎么办？As long as we don* t lose heart, well find a way to overcome the difficulty.我们只要不灰心，就能找到克服困难的办法。Granted that this is true, what conclusion can you draw?就算这是实际情况，你又能得出什么结论呢？二、分句2 .祈使句表示条件，简单句表示结果。例如：C

21、ome earlier tomorrow and you 11 see him. (=lf you come earlier tomorrow, you* 11) 你明天 早点来的话，就会见到他。Use your head, and you* 11 find a better way. (=1 f you use your head, you 11)只要动动脑筋， 你就会想出更好的办法来。3 .由转折连词引导的分句可表示虚拟条件。例如：I was very busy today. Otherwise (= If I had not been very busy that day), I wou

22、ld have taken part in the discussion.今天我很忙，否则，我会参加那次讨论的。He wou1d have given you more help, but he was very busy (=If he had not been very busy). 他要不是很忙，就会给你更多的帮助的。4 .有些谚语中的省略句，虽没有表示条件的连词，也可表示条件。例如：Easy come, easy go. (=If money comes easily, it will go easily.)来得容易，去得快。First come, first served. (=If

23、 one comes first, he will be served first.)先来先招待。三、名词词组其作用相当于一个条件从句。例如:One step further, and you arc lost. (=lf you take one step further, you)再往前走一步的话，你就没命了。Another half hour (= If another half hour should pass 或 If you should wait for another half hour), all doors would be locked.再等半个小时，所有的门就锁上了。四

24、、介词短语其作用相当于条件状语从句。例如：We could not have succeeded without your help(= If you had not helped us).如果没有你的帮 助，我们就不会成功。Many people believed that, for the spelling diTficulties(=if there were not the spel1ing difficulties), Engl ish would be an easy language.很多人认为，要不是拼写有困难，英语会是一种 容易学的语言。五、不定式短语To look at h

25、im (=If you were to look at him ), you would think him a young man.如果看一看，你会觉得他很年轻。六、独立主格结构Weather pennitting, we 11 have an outing tomorrow.如果天气许可，我明天出去郊游。All things considered, her paper is of greater value than yours.从各方面考虑起来，她的论文比你的论文更有价值些。六、目的状语从句1. John shut everbody out of the kitchen he could

26、 prepare his grand surprise for theparty.A. which B. when C. so that D. as if目的状语从句般由that （以便），so that（以便）,in order that（以便）等连词引导，从句中的谓语 动词一股含有情态动词，如：Drive carefully so that everyone can enjoy a long life.开车小心点，让大家多活几年。She got up early in order that she might be in time for class.她起得早，以便按时去上课。 教你巧学巧

27、记：如何判断so that引导的目的状语从句与结果状语从句so that后既可跟目的状语从句，也可跟结果状语从句。如何判断？下面的方法可帮助你解决问题。一、当表达的含义是“为了”、“以便”时，为目的状语从句：当表达的是“以至于”、“因此”含义 时，为结果状语从句。例如：1. If you do know, answer in a loud enough voice so that al 1 the class may hear.（目的状语 从句）如果你的确知道，应大声回答，以便让全班学生都可以听见。2. It rained hard the day before yesterday, so t

28、hat she had to stay at home.（结果状语从句） 前天雨下得很大，因此她只好呆在家里。二、当从句的谓语动词有情态动词can, could, may, might等时，是目的状语从句；当从句里没有情 态动词，且谓语动词是一般现在时（过去时）、现在完成时等时态时，是结果状语从句。例如：3. We stopped at Sal t Lake Ci ty so that we could （might） visi t the monument to seagulls.（目 的状语从句）我们在盐湖城逗留，以便可以参观为海鸥修的纪念碑。4. They have walked a l

29、ong way, so that we are al I tired.（结果状语从句）他们走了很长的路， 所以都很累。三、当从句之前的s。that可用in order that代替时，是目的状语从句；反之，是结果状语从句。 例如；We now study hard so that we may work well in the future. （=We now study hard in order thatwe may work well in the future.（目的状语从句）我们现在努力学习是为J将来更好地工作。四、当s。that之前有逗号时，是结果状语从句：反之，是目的状语从句。例

30、如：The story is very interesting, so that I like it very much.（结果状语从句）这部小说很有趣，因而 我非常喜欢。七、比较状语从句比较状语从句一般由asas （和一样）,not as/s。as （与不一样），than （kt）, the more，themore（越越）引导。如:English is as important as maths.英语和数学一样重要。It is not so easy as you thought.它不像你想象的那么容易。We came earlier than they did.我们来得比他们早。教你巧学

31、巧记：Than后面的代词是用主格还是用宾格？下列两句中，Ihan分别用了 I和me,两者都正确：She is older than me. （口语中常用）She is older than I （am）（较正式文体常用）但是，在有些句子中，用主格和用宾格，句子会截然不同。John likes Henry more than I.John likes Henry more than me.我们知道，than用作连词，它的后面省略了一个比较（方式）状语从句。现在我们把以上两句补充完 整。John likes Henry more than I like Henry.John likes Henry

32、 more than he likes me.看得出，第一句的意思是：约翰比我更喜欢亨利。第二句的意思是：约翰喜欢亨利胜过喜欢我。那么， 在什么情况下，than后面的人称代词用主格？什么情况下用宾格？一、如果主句谓语是不及物动词，than后面的人称代词用主格或宾格均可，且意义无区别。例如：She draws better than I （me）.它画得比我好。要注意：如果人称代词后面有all时，人称代词一般用宾格。She draws better than them all.二、如果主句谓语是及物动词，且than后面的名词或代词又与动闻连用时，than后面的人称代词只 能用主格。例如：He l

33、oves the dog more than his wife does.他比他的妻子更爱这条狗。三、如果主句谓语是连系动词be, than后面的人称代词用主格或宾格均可，且意义无区别。例如：He is taller than I （me）.他比我长得高。四、如果主句谓语是及物动词，特别是like, love, hate等及物动词，than后面的人称代词用用主格 或宾格均可，但句意不同。逻辑上，这些及物动词既能与人称代词构成“主谓关系”，又能构成“动宾关 系”。因此，用主格时，后面省去了主句中的谓语和宾语；用宾格时省去了句子的主语和谓语。例如：I like the boy better tha

34、n she. =1 1 ike the boy better than she likes the boy.我比她更喜欢那个男孩。I 1 ike the boy better than her. =1 1 ike the boy better than I 1 ike her.我喜欢那个男孩胜过喜欢她。八、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，如：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。You must do everything as

35、 I do.你们要照我这样去做。雉点：as if引导的方式状语从句常用虚拟语气。例如：（1）1 dont like Norman. He talks as if he knew everything.（2）She speaks English as if she were a native speaker.但在但looks as if., 11 seems as if.句型中常用陈述语气。例如:It looks as if he is coming.难点：the way的用法。the way后面的引导词常用that引导，而且经常省略。一般不用in which 引导。例如：We didnt li

36、ke th way he treated us.A. which B. where C. that D. in which九、结果/程度状语从句结果/程度状语从句一般由so that（结果是；以致），so/suchthat （如此以至于）引导,如:There were so many beautiful things that it was hard to choose.有那么多漂亮的东西，真不 知挑哪样才好。He is ill, so that he cant go to school.他病了，不能去上学了。He became so angry that he couldnt speak.他

37、气得说不出话来。注意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。还须 注意以下几点：1）在so. ihal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。如：She is such a good teacher （=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）如果被修饰的是不可数名词或复数可数名词时，一般

38、须用such. that。如：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 al 1 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）如果不可数名词或复数可数名词前有many, much, little, few修饰时，则用sothat 0如：Ive had so many falls that T,

39、 m black and blue al 1 over.我摔了好多次较，周身青一块紫一块 的。（复数可数名词）George had so little money that he had to gel 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 lillle children ihal they can I do anything.他们是小孩,什么事情都干不了。 教你巧学巧记：so和such都有“这么，这样”之意，许多同学在使用它们时容易混淆。为智助同学们掌握和记忆， 请看下面一句顺口溜：名前such,形、副so,多多少少也用so。little属特殊，“小”用SUCh, “少”用SOo