中考英語連詞用法講解

1、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 （因為），still （可是），as well as （也），both.and（和），not only .but also.（不但 而且）， either or （或一或）， neither nor （既不也 不,一

2、）等。（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（和樣），as far as （就而言）,as long as （只要）,as soon as （就一）, even if （即使）,because （因為）,unless （除非）,than （比）,whether （是否）,in order that（為了），so that（如此以致）,so that（

3、以便），now that（現(xiàn)在既 然），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 （因為）表示原因的語氣最強，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 becauseas （因為）表示一般的因果關(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

4、。since （既然）表示對方已經(jīng)知道、無需加以說明的原因或事實。for （因為）是并列連詞，語氣較弱，用來補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, let' s go to the zoo.I will ask Lin Tao to go with me since you are very busyWe must be off nowfor the match starts at 7 00.（2） if、 wheth

5、er的區(qū)另1J：表示“是否”時，if和whether同義，引導(dǎo)賓語從句,另外，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 don ' t knowwhether he will arrive on time.我不知道他是不是會按時到。I will ring you up ifhe arrives on time.如果他按時到達我會給你打電話的。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)

6、讓步狀語從句，在動詞discuss后，在 wonder / not sure之后,在if與whether含義易混時。如：Whether it is a fine day next Sunday is still a question.（弓I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 it ' s summer or winter導(dǎo)t上步狀語從句）Please let me know whether you need m

7、y 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“一邊邊”。如： Please do not trouble me while I am writing my homework.I ' ll go homehen I have finished m

8、y job.They were running quickly across the road 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 not till/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 直進行至U你return）Th

9、ey won ' t go on workingntil they get what they think 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

10、"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 won ' t leave the TV seen though her husband is waiting for her for the supperIt was a quiet party

11、. I had a good time, though（6） prefer to rather than 與 prefer to 的區(qū)另kprefer torather thain面都是用動，過原形，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、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 need

12、s 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）The boy needs a pen now./Now,the boy needs a pen./男孩現(xiàn)在需要支鋼筆。（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

13、 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 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.因為不得不完成作業(yè)，男孩需要一支筆。（原因狀語）Frightened,he sits there soundlessly./ （因為）受了驚嚇，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

14、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

15、 hard when we got to school yesterday.While he was doing his homework, the telephone 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：I '

16、 ll ring you up as soon as I get to New York.I will tell him everything when he comes back.He won ' t 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 ou

17、t.Let ' s wait until the rain stops.We won' t start until Bob comes.Don' t get off until the bus stops.PracticeI didn ' t know he came back I met him in the street.A. since B. when C. untilD. after請?zhí)钊脒m當(dāng)?shù)囊龑?dǎo)詞I haven ' t heard from him he went to America .We found the books two days

18、 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弓I導(dǎo)。例如：What shall we do if it snows tomorrow?Don' t 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：I，ll help you with your English if am free tomorrow.He won ' t be

19、 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 you ' ll be late.=If you don ' t hurry up, you ' ll be late.Study hard and you will pass the exam.=If you study hard, you will pass the exam.Practicet catch the early bus.C. will get up1. If you late tomorr

20、ow morning, you wonA. get up B. don' t get up3.原因狀語從句(1)原因狀語從句通常由because, since, aSH導(dǎo)。例如：He didn ' t come to school because he was ill.As it is raining, we shall not go the zoo.Since you can ' t answer the question, I' ll ask someone else.(2)because表示直接原因，語氣最強。 Because引導(dǎo)的原因狀語從句多放在主句之

21、后?；卮?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 aren ' t going there?Because I don ' t want to.As he has no car, he can ' t get there easily.Since we have no money, we can ' t buy it.(3)because和so不能同用在一個句子里。Practice1. I keep an English diaryit help

22、s me improve my writing skill.A. howB. 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 beautiful.(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, such that, so tha導(dǎo)。例如：He is so poor that he

23、can ' t 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 couldn' t see it.(2)so thai 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)構(gòu)是：".so形容詞(副詞)+ that +從句”。例如：He was so glad that he couldn' t say a word.The h

24、all 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 that nobody wanted to do anything.He had such long arms that he could almost touc

25、h 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 see it again. It is such an important match that nobody wants to miss it. =The ma

26、tch 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 can' t go to the cinema with you.Practice ()1. This exercise is difficult.A. so; that few of us c

27、an doB. so; that few of us can do itC. too; for anyone of us to doD. 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+ than等連詞引導(dǎo)。例如：Tom runs faster than John does.This classroom is as big as tha

28、t one.Practice()1.Our village has changed a lot, and it becomes before.A. so beautiful as B. as beautifully asC. more beautiful than D. much more beautiful()2. Don ' t just believe the advertisement. That kind of camera is it says. A. as good as B. not as good as C. as well as D. not as well as6

29、.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) 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,

30、 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.Although I am tired, I must go on working.(2)although(though)不能與but用在同一個句子中。

31、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 .You ll bleate you don t get up early tomorrow morning.A. if B. when C. before D. until2.1 f he on time, we will go without himA. doesn t

32、 come B. don t come C. didn t come3.1 f 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. 地點狀語從句地點狀語從句常常由where 來引導(dǎo)。例如：Where there is a will, there is a way.Practice( )1.You should let your children play you can s

33、ee 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何常由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when, whenever, while, as, before, after, since, till, once地點狀語從句where, wherever原

34、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 so that, so that, such that, 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, however, whatever, as, etc.比較狀語從旬 asas, so as, than, etc.方式狀語從句as, as if, as though, e

35、tc.練習(xí)1. We bought Granny a present, she didn't like it.A. but B. and C. orD. so2. Run quickly, we'll miss the early train.A. and B. but C. soD. or3. I'll give the book to him he comes back.A. sinceB. as soon asC. before D. until4. Don't cross the road the light turns green.A. whenB.

36、whileC. until D. as5. Miss Gao has been a teacher 1990.A. before B. after C. sinceD. in6. - Which would you like better, tea milk? - Tea, please.A. but B. and C. or D. with7. We love spring there's beautiful flowers every where.A. thoughB. but C. or D. because8. Please leave 7 : 00, then you'

37、;ll be able to get there earlier.A. till, inB. from, / C. before, /D. behind, to9. The teacher didn't begin the lesson all the students stopped talking.A. until B. after C. if D. because10. Betty didn't go to see the film yesterday she was ill.A. but B. until C. if D. because11. You must sta

38、rt right now, you'll miss the train.A. for B. and C. so D. or12. he is a child of six, he can read and write.A. Whose B. If C. Though D. Because13. I like fish, chicken, eggs.A. and, and B. and, withC. /, and D. and,/14. Take this dictionary with you you may use it in class.A. when B. in order t

39、oC. but D. so that15. I hope will be fine tomorrow.A. itB. what C. whetherD. when16. she was not well, I decided to go without her.A. Though B. As C. When D. Because of17. My aunt bought me many story books that I spent a lot of time them.A. such on B. such in C. too in D. so on18. Mother was cookin

40、g she a knock at the door.A. when, listen toB. while, listened to C. while, heard D. when, heard19. Speak slowly, we can understand you.A. and B. or C. if D. because20. You'll learn English well you put your heart into it.A. if B. so C. until D. or21. I won't let you in you show me your pass

41、.A. until B. for C. since D. because22. She didn't go to school she was ill.A. why B. because C. where D. but強化練習(xí)：練習(xí)一：1. he s old, he can 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

42、; is B. comes; will be C. will come; is D. will come; will be3. In the zoo if a child into the water and can t swim, the dolphins may come up him.A. will fall; to help B. falls; to helpC. will fall; help D. falls; helping4. I don t remember he worked in that city when he was young.A. what B. which C

43、. where D. who5. We will stay at home if my aunt to visit us tomorrow.A. comes B. come C. will comeD. is coming6. The police asked the children cross the street the traffic lights turned green.A. not; before B. don t; whenC. not to; until D. not; after7. I was late for class yesterday there was some

44、thing wrong with my bike.A. when B. that C. until D. because8. I ll sgwoimming with you if I free tomorrow.A. will 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; fewestC. more careful; fewer D. more careful; less10. You should f

45、inish your lessons you go out to play.A. before B. after C. when D. while11. I hurriedI wouldnt be late for class.A. since B. so that C. as if12. When you read the book, youA. which B. that C. where13. The teacher raised his voiceD. unless d better make a mark you have any questions.D. thoughall the

46、 students could hear him.A. for B. so that C. because D. in order14. He took off his coat he felt hot.A. because B. as C. if D. since15. It is that we d like to go out for a walk.A. a lovely day B. too lovely a dayC. so lovely a day D. such lovely a day16. Mary had much work to do that she stayed at

47、 her office all day.A. such B. so C. too D. very17. I felt very tired, I tried 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 thatC. No matter

48、 how D. The moment20. Write to me as soon as you to Beijing.A. will 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

49、be pleased with our performance we try our best.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)堅持練習(xí)兩年了。The seven-year-old girl likes playing the piano she has kept practicingfor two years.6. 雖然她很忙，他還堅持自學(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 journalist .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. 如果人人為保護環(huán)境做出貢獻，世界將會變得更美好。 to protecting the environ