中考英語連詞用法講解

1、精選優(yōu)質(zhì)文檔-傾情為你奉上中考英語連詞用法講解Step 1 language point1、連詞的含義：連接詞與詞、短語與短語、或引導(dǎo)從句的詞叫連接詞。2、連詞的分類：連詞分為并列連接詞和從屬連接詞兩種。（1）并列連接詞連接并列的詞、短語、從句或句子。常見的并列連接詞有：and（和），but（但是），or（或者，否則），nor（也不）， so（所以）， however（然而，無論如何），for（因?yàn)椋?，still（可是），as well as（也），both.and.（和）， not only .but also.（不但而且）， either or（或或），neither nor（既不也不）等

2、。（2）從屬連接詞用于引導(dǎo)從句，常見的從屬連接詞有：when（當(dāng)時候），while（正當(dāng)時候），after（在之后），before（在之前），since（自從），until（直到），although/though（雖然），if（假如），as（如一樣；由于），as as（和一樣），as far as（就而言），as long as（只要），as soon as（一就），even if（即使）， because（因?yàn)椋?，unless （除非），than（比），whether （是否），in order that（為了），sothat（如此以致），so that（以便），now that（現(xiàn)在既然）

3、，by the time（到時候），every time（每當(dāng)），as if（仿佛），no matter when（或whenever）（無論何時），no matter where（或wherever）（無論在哪里）等。從屬連詞可引導(dǎo)狀語從句。辨析（1）because、as、since、for的用法：because（因?yàn)椋┍硎驹虻恼Z氣最強(qiáng)，常表示必然的因果關(guān)系，從句一般放在主句后面；回答why的問句只能用because. as（因?yàn)椋┍硎疽话愕囊蚬P(guān)系，語氣比because弱，說明比較明顯的原因，它引導(dǎo)的從句可以放在句首也可以放在句尾。since（既然）表示對方已經(jīng)知道、無需加以說明的原因或

4、事實(shí)。for（因?yàn)椋┦遣⒘羞B詞，語氣較弱，用來補(bǔ)充說明理由或提供一種解釋。如：He is not at school today because he is seriously ill. As all of you have got here, now, lets go to the zoo. I will ask Lin Tao to go with me since you are very busyWe must be off now for the match starts at 7：00. （2）if、whether的區(qū)別：表示“是否”時，if和whether同義，引導(dǎo)賓語從句，另外

5、，whether還可以引導(dǎo)主語從句、表語從句（以及同位語從句）等名詞性從句或者讓步狀語從句；而if還可以表示“如果”，引導(dǎo)條件狀語從句，（主句與從句遵循主將從現(xiàn)的原則）。如：I dont know if/whether he will arrive on time.我不知道他是不是會按時到。I will ring you up if he arrives on time.如果他按時到達(dá)我會給你打電話的。 注意下列情況只能用whether不能用if：引導(dǎo)主語從句，引導(dǎo)表語從句，引導(dǎo)從句作介詞賓語，引導(dǎo)不定式短語，引導(dǎo)讓步狀語從句，在動詞discuss之后，在wonder / not sure之后

6、，在if與whether含義易混時。如：Whether it is a fine day next Sunday is still a question. （引導(dǎo)主語從句） Please ask him whether to go there with a raincoat or not. （作動詞的賓語） Hainan is the place to be, whether its summer or winter. （引導(dǎo)讓步狀語從句）Please let me know whether you need my help. （引導(dǎo)賓語從句）（如果換成if則還可能表示“如果你需要我的幫助請告

7、知”）（3）while、when、as的用法區(qū)別：while常表示一個較長的動作，它引導(dǎo)的從句動作與主句的動作是同時發(fā)生的、是平行的；when可以表示較短的動作也可以表示較長的動作，主句和從句的動作可以同時發(fā)生也可以先后發(fā)生；as與上兩詞同義，可替換while和when， 表示主句和從句的動作同時發(fā)生，常譯為“一邊一邊”。如：Please do not trouble me while I am writing my homework. Ill go home when I have finished my job. They were running quickly across the r

8、oad when they heard the sound of a truck coming.As we walked in the dark street, we sang songs and talked loudly. （4）till/until與nottill/until的區(qū)別：前者表示一個延續(xù)性的動作，后者表示一個才開始的動作。如：I will stay here and watch the baby until you return. （stay這個動作一直進(jìn)行到你return） They wont go on working until they get what they t

9、hink is reasonable. 另外till與until基本可以互換，但是在句首時只能用until，不能用till. 如：Until the last minute of the match we kept playing. Not until he had finished his work did he go home.（倒裝句）（5）though與although的區(qū)別：兩個詞都表示“雖然”，均不可以與but同時使用，但在句中可加still或yet連用。although“盡管、雖然”僅作連詞，比較正式，一般可以換為though； though“雖然、盡管、即使”，還可以與even

10、連用（=even if），表示“即使、縱然”，作副詞時意思是“然而、不過”，不能放在句首。如：He passed the exams although illness prevented him from going to classes.she wont leave the TV set,even though her husband is waiting for her for the supper.It was a quiet party. I had a good time, though.（6）prefer torather than與preferto的區(qū)別：prefer torat

11、her than后面都是用動詞原形，preferto都是用動名詞或名詞。如：I prefer English to Japanese. /I prefer to learn English rather than learn Japanese. 定義：修飾謂語動詞或某個句子的“詞，短語，句子”；用來說明謂語動詞發(fā)生的時間、地點(diǎn)、方式、因果、條件、讓步、目的、程度等。2、什么可以作狀語：1)副詞（短語）作狀語：The boy needs a pen very much./男孩非常需要一支鋼筆。（程度狀語）The boy really needs a pen./男孩真的需要一支鋼筆。（程度狀語）T

12、he boy needs a pen now./Now,the boy needs a pen./男孩現(xiàn)在需要一支鋼筆。（時間狀語） 2)介詞短語作狀語：In the classroom,the boy needs a pen./在教室里，男孩需要一支鋼筆。（地點(diǎn)狀語）Before his mother,Tom is always a boy./在母親面前,湯姆總是一個男孩子.(條件狀語)On Sundays,there is no student in the classroom./星期天,教室里沒有學(xué)生.(時間狀語) 3)分詞（短語）作狀語：He sits there,asking for

13、 a pen./他坐在那兒要一支筆。（表示伴隨狀態(tài)）Having to finish his homework,the boy needs a pen.因?yàn)椴坏貌煌瓿勺鳂I(yè)，男孩需要一支筆。（原因狀語）Frightened,he sits there soundlessly./（因?yàn)椋┦芰梭@嚇，他無聲地坐在那兒。（原因狀語）4)不定式作狀語：The boy needs a pen to do his homework./男孩需要一支筆寫家庭作業(yè)。（目的狀語）To make his dream come true,Tom becomes very interested in business.為實(shí)

14、現(xiàn)夢想,湯姆變得對商業(yè)很有興趣. 5)句子做狀語：He had learned a little Chinese before he came to China.在他來中國之前，他已經(jīng)掌握了一些中文。二、 狀語從句的分類1. 時間狀語從句(1)時間狀語從句常用when, as, while, before, after, since, till, until, as soon as等連詞來引導(dǎo)。例如：It was raining hard when we got to school yesterday.While he was doing his homework, the telephone

15、 rang.As he walked along the lake, he sang happily.He had learned a little Chinese before he came to China.After he finished middle school, he went to work in a factory.(2)在時間狀語從句里，通常不用將來時態(tài)，用現(xiàn)在時態(tài)表示將來的動作或狀態(tài)。例如：Ill ring you up as soon as I get to New York.I will tell him everything when he comes back.

16、He wont believe it until he sees it with his own eyes.(3)在帶有till或until引導(dǎo)的時間狀語從句的主從復(fù)合句里，如果主句用肯定式，其含義是“一直到時”，謂語動詞只能用延續(xù)性動詞。如果主句用否定式，其含義是“直到才”, “在以前不”, 謂語動詞可用瞬間動詞。例如：The young man read till the light went out.Lets wait until the rain stops.We wont start until Bob comes.Dont get off until the bus stops.P

17、racticeI didnt know he came back I met him in the street. A. since B. when C. until D. after請?zhí)钊脒m當(dāng)?shù)囊龑?dǎo)詞I havent heard from him _ he went to America . We found the books two days _ he had gone away .Do not leave the room _ you have finished the test.2. 條件狀語從句(1)條件狀語從句通常由if, unless引導(dǎo)。例如：What shall we do

18、 if it snows tomorrow?Dont leave the building unless I tell you to.(2)在條件狀語從句里，謂語動詞通常用現(xiàn)在時態(tài)表示將來的動作或狀態(tài)。例如：Ill help you with your English if am free tomorrow.He wont be late unless he is ill.(3)“祈使句 + and (or)+ 陳述句” 在意思上相當(dāng)于一個帶有條件狀語從句的復(fù)合句。例如：Hurry up, or youll be late.=If you dont hurry up, youll be lat

19、e.Study hard and you will pass the exam.=If you study hard, you will pass the exam.Practice1. If you late tomorrow morning, you wont catch the early bus. A. get up B. dont get up C. will get up 3. 原因狀語從句(1)原因狀語從句通常由because, since, as引導(dǎo)。例如：He didnt come to school because he was ill.As it is raining,

20、we shall not go the zoo.Since you cant answer the question, Ill ask someone else.(2)because表示直接原因，語氣最強(qiáng)。Because引導(dǎo)的原因狀語從句多放在主句之后。回答由why提出的問題，只能用because。As和since語氣較弱，一般用來表示明顯的原因。由as和since引導(dǎo)的原因狀語從居多放在句首。例如：-Why arent going there?-Because I dont want to.As he has no car, he cant get there easily.Since we

21、 have no money, we cant buy it.(3)because和so不能同用在一個句子里。Practice1. I keep an English diary it helps me improve my writing skill. A. how B. whenC. because D. if2. his leg was hurt, he walked slowly. A. Because; so B. Because; /C. Although; but D. Although; /3. .I collect toys because they are beautifu

22、l. (對畫線部分提問) you collect toys?4. 結(jié)果狀語從句(1)結(jié)果狀語從句由sothat, suchthat, so that引導(dǎo)。例如：He is so poor that he cant buy a bike for his son.She is such a good teacher that everybody likes her.My pencil fell under the desk, so that I couldnt see it.(2)sothat語such.that可以互換。例如：在由so.that引導(dǎo)的結(jié)果狀語從句中，so是副詞，與形容詞連用。其結(jié)

23、構(gòu)是: “.so + 形容詞（副詞）+ that + 從句”。例如：He was so glad that he couldnt say a word.The hall is so big that it can hold 2,000 people.Mother lives so far away that we hardly ever see her.在由suchthat引導(dǎo)的結(jié)果狀語從句中，such是形容詞，它修飾的可以是單數(shù)或復(fù)數(shù)可數(shù)名詞，也可以是不可數(shù)名詞；名詞前面可以帶形容詞，也可不帶。如果是單數(shù)可數(shù)名詞，前面需加不定冠詞a或an。例如：It was such a hot day t

24、hat nobody wanted to do anything.He had such long arms that he could almost touch the ceiling.He made such rapid progress that he did very well in the mid-term. 有時上述兩種結(jié)構(gòu)是可以互換的。例如：It was such a wonderful film that all of us wanted to see it again.=The film was so wonderful that all of us wanted to se

25、e it again.It is such an important match that nobody wants to miss it.=The match is so important that nobody wants to miss it.(3)如果名詞前由many, much, little, few等詞修飾時，只能用so, 不用such。例如：Soon there were so many deer that they ate up all the wild roses.He has so little time that he cant go to the cinema wi

26、th you.Practice( ) 1. This exercise is difficult . A. so; that few of us can doB. so; that few of us can do it C. too; for anyone of us to do D. too; for anyone of us to do it2. This math problem is so easy that I can work it out. (改為簡單句) This math problem is to work out.5. 比較狀語從句比較狀語從句通常由asas, 比較級

27、+ than等連詞引導(dǎo)。例如：Tom runs faster than John does.This classroom is as big as that one.Practice( )1.Our village has changed a lot, and it becomes_before. A. so beautiful as B. as beautifully as C. more beautiful than D. much more beautiful( )2. Dont just believe the advertisement. That kind of camera is

28、 _ it says. A. as good as B. not as good asC. as well as D. not as well as6. 目的狀語從句1)目的狀語從句通常由 so that, in order that（為了，以便）引導(dǎo)。例如：We started early so that we could catch the first train.He studies hard so that he could work better in the future.We used the computer in order that we might save time.2

29、） so that既可引導(dǎo)目的狀語從句，又可引導(dǎo)結(jié)果狀語從句。區(qū)別這兩種從句的辦法有兩個：目的狀語從句里往往帶有情態(tài)動詞can, could, may, might等。從意思上看，目的狀語從句往往表示的目的很明確。例如：Speak clearly so that they may understand you. (目的狀語從句)Jack is badly ill so that he has to rest. (結(jié)果狀語從句)7. 讓步狀語從句(1)讓步狀語從句通常由although, though等連詞引導(dǎo)。例如：Though he is young, he knows a lot.Alth

30、ough I am tired, I must go on working.(2)although(though)不能與but用在同一個句子中。例如：不能說：Though it was raining hard, but he still went out.應(yīng)該說：Though it was raining hard, he still went out.或It was raining hard, but he still went out.Practice1.Youll be late _ you dont get up early tomorrow morning.A. if B. whe

31、n C. before D. until2.If he _ on time, we will go without himA. doesnt come B. dont come C. didnt come3.If you _ him tomorrow, please ask him if he _ to work on the farm with us.A. see ; goes B. will see; goes C. will see; will go D. see; will go8. 地點(diǎn)狀語從句地點(diǎn)狀語從句常常由where來引導(dǎo)。例如： Where there is a will,

32、there is a way.Practice( )1.You should let your children play _ you can see them. A. where B. when C. in which D. that( )2.The school was built _ there had once been a church. A. where B. when C. in which D. That9.方式狀語從句 方式狀語從句常由as來引導(dǎo)。例如： The students do as the teachers say.三、引導(dǎo)各類狀語從句的連詞類別連詞 時間狀語從句w

33、hen, whenever, while, as, before, after, since, till, once地點(diǎn)狀語從句where, wherever 原因狀語從句because, since, as, for, now that目的狀語從句in order that, so that, etc. 結(jié)果狀語從句sothat, so that, suchthat, that, etc. 條件狀語從句if, unless, as(so)long as, in case that etc. 讓步狀語從句though, although, even if, even though, howev

34、er, whatever, as, etc. 比較狀語從句asas, soas, than, etc. 方式狀語從句as, as if, as though, etc.練習(xí)1. We bought Granny a present, _ she didn't like it.A. but B. and C. orD. so 2. Run quickly, _ we'll miss the early train.A. and B. but C. so D. or 3. I'll give the book to him _ he comes back.A. since

35、B. as soon as C. before D. until 4. Don't cross the road _ the light turns green.A. when B. while C. until D. as 5. Miss Gao has been a teacher _ 1990.A. before B. after C. since D. in 6. - Which would you like better, tea _ milk? - Tea, please.A. but B. and C. or D. with 7. We love spring _ the

36、re's beautiful flowers every where.A. though B. but C. or D. because 8. Please leave _ 700, then you'll be able to get _ there earlier.A. till, in B. from, / C. before, / D. behind, to 9. The teacher didn't begin the lesson _ all the students stopped talking.A. until B. after C. if D. be

37、cause 10. Betty didn't go to see the film yesterday _ she was ill.A. but B. until C. if D. because 11. You must start right now, _ you'll miss the train.A. forB. and C. so D. or 12. _ he is a child of six, he can read and write.A. Whose B. If C. Though D. Because 13. I like fish, _ chicken,

38、_ eggs.A. and, andB. and, with C. /, and D. and, / 14. Take this dictionary with you _ you may use it in class.A. when B. in order to C. but D. so that 15. I hope _ will be fine tomorrow.A. it B. what C. whether D. when 16. _ she was not well, I decided to go without her.A. Though B. As C. When D. B

39、ecause of 17. My aunt bought me _ many story books that I spent a lot of time them.A. suchonB. suchin C. tooin D. soon 18. Mother was cooking _ she _ a knock at the door.A. when, listen to B. while, listened toC. while, heard D. when, heard 19. Speak slowly, _ we can understand you.A. and B. or C. i

40、f D. because 20. You'll learn English well _ you put your heart into it.A. if B. so C. until D. or 21. I won't let you in _ you show me your pass.A. until B. for C. since D. because 22. She didn't go to school _ she was ill.A. why B. because C. where D. but 強(qiáng)化練習(xí)：練習(xí)一：1. _ hes old, he can

41、still carry this heavy bag. A. Though B. Since C. For D. So2. -Do you know if he _ to play basket ball with us? -I think he will come if he _ free tomorrow. A. comes; is B. comes; will be C. will come; is D. will come; will be3. In the zoo if a child _ into the water and cant swim, the dolphins may

42、come up _ him. A. will fall; to help B. falls; to help C. will fall; help D. falls; helping4. I dont remember _ he worked in that city when he was young. A. what B. which C. where D. who5. We will stay at home if my aunt _ to visit us tomorrow. A. comes B. come C. will come D. is coming6. The police

43、 asked the children _ cross the street _ the traffic lights turned green. A. not; before B. dont; when C. not to; until D. not; after7. I was late for class yesterday _ there was something wrong with my bike. A. when B. that C. until D. because8. Ill go swimming with you if I _ free tomorrow. A. wil

44、l be B. shall be C. am D. was9. In the exam, the _ you are, _ the _ mistakes you will make. A. careful; little B. more careful; fewest C. more careful; fewer D. more careful; less10. You should finish your lessons _ you go out to play. A. before B. after C. when D. while11. I hurried _ I wouldnt be

45、late for class. A. since B. so that C. as if D. unless12. When you read the book, youd better make a mark _ you have any questions. A. which B. that C. where D. though13. The teacher raised his voice _ all the students could hear him. A. for B. so that C. because D. in order14. He took off his coat

46、_ he felt hot. A. because B. as C. if D. since15. It is _ that wed like to go out for a walk. A. a lovely day B. too lovely a day C. so lovely a day D. such lovely a day16. Mary had _ much work to do that she stayed at her office all day. A. such B. so C. too D. very17. _ I felt very tired, I tried

47、to finish the work. A. Although B. Because C. As D. As if18. _ the day went on, the weather got worse. A. With B. Since C. While D. As19. _ well you can drive, you must drive carefully. A. So long as B. In order that C. No matter how D. The moment20. Write to me as soon as you _ to Beijing. A. will

48、get B. get C. getting D. go二. 根據(jù)中文意思完成下列英語句子1. 不管他跟我開什么玩笑，我都不生氣。 I am not angry with him, _ _ _ jokes he _ on me.2. 布魯斯太太對學(xué)生非常親切，以至于學(xué)生把她當(dāng)作母親。 Mrs. Bruce was _ kind to her students _ they _ her _ their mother.3. 只要我們竭盡全力，父母就會滿意我們的表現(xiàn)。 Our parents will be pleased with our performance _ _ _ we try our b

49、est.4. 你一到上海就給我打個電話好嗎？ Will you please call me _ _ _ you get to Shanghai.5. 這個七歲的女孩酷愛鋼琴，以至于他已經(jīng)堅(jiān)持練習(xí)兩年了。 The seven-year-old girl likes playing the piano _ _ _ she has kept practicing for two years.6. 雖然她很忙，他還堅(jiān)持自學(xué)英語。 _ _ _ _, she kept on learning English by herself.7. 他長大后相當(dāng)一名記者。 He wants to be a journ

50、alist _ _ _ _.8. 無論刮風(fēng)下雨，我們的老師總是第一個到校。_ _ windy or rainy, our teacher is always the first to get to school.9. 如果人人為保護(hù)環(huán)境做出貢獻(xiàn)，世界將會變得更美好。 _ _ _ _ _ to protecting the environment, the world will become much more beautiful.10. 李明昨天沒來上學(xué)，因?yàn)樗×恕?Li Ming didnt come to school _ _ _ _.練習(xí)二：選擇合適的連接詞，完成下列句子。1. Jim spends a lot of money on books _he is not rich.2. Kate fell into sleep _she was listening to the music.3. -Is David at school