连词用法讲解

1、 高考高考- 连连 词词 连词分为并列连词和从属连词两大类。连词分为并列连词和从属连词两大类。 并列连词并列连词是连接主语与主语，谓语与谓是连接主语与主语，谓语与谓 语，句子与句子，分词与分词的词，它语，句子与句子，分词与分词的词，它 要求前后两部分有相同的形式和语法作要求前后两部分有相同的形式和语法作 用用 从属连词从属连词一般连接主句与从句的词。从一般连接主句与从句的词。从 句形式有名词性从句，定语从句和状语句形式有名词性从句，定语从句和状语 从句等。从句等。 （一）并列连词：一）并列连词： 并列连词可用来连接词与词，词组与词组，分句并列连词可用来连接词与词，词组与词组，分句 与分句。常用

2、的并列连词有：与分句。常用的并列连词有：and（和），（和），as well as （既（既又），又），both and（不但（不但而且），而且），not only but also（不但（不但而且），而且），not but（不（不 是是而是），而是），neither nor（既不（既不也不），也不）， either or（不是（不是就是），就是），or（或者），（或者），but （但（但 是），是），yet（然而），（然而），for（因为），（因为），so（所以），（所以）， while（而），（而），when（这时）等。如：（这时）等。如： Both my brother and my s

3、ister are teachers./ His room is bright but mine is gloomy（暗沉沉的）（暗沉沉的）. He can not only repair radios but also fix them./ It is a glorious（光荣的）（光荣的）yet difficult task . （二）从属连词（二）从属连词 从属连词是指在复合句中引导从句的连结词从属连词是指在复合句中引导从句的连结词。 常见的从属连词有：常见的从属连词有： 引导时间状语从句的引导时间状语从句的：after, before, when, as, while, since,

4、 until, till, as soon as 引导原因状语从句的引导原因状语从句的：because, since, as 引导让步状语从句的引导让步状语从句的：although, though, no matter（无论）（无论）, even if (though) 引导条件状语从句的引导条件状语从句的：if, unless, once, so (as) long as 引导结果状语从句的引导结果状语从句的： so that , such that 引导目的状语从句的引导目的状语从句的： so that , in order that 引导比较状语从句的引导比较状语从句的： as as ,

5、 not so (as) as , than 引导方式状语从句的引导方式状语从句的：as if 引导主语，宾语或表语从句的连词主要有引导主语，宾语或表语从句的连词主要有： that, whether, if三个。其中三个。其中that 和和whether有有 时候还可以引起同位从句和状语从句。时候还可以引起同位从句和状语从句。 2、 before 的特殊用法的特殊用法 before作连词一般表示时间，意为作连词一般表示时间，意为“在在之之 前前”，但有些句子中这样译就显得别扭，但有些句子中这样译就显得别扭。 试看以下句子的翻译：试看以下句子的翻译： He almost knocked me d

6、own before he saw me.他几乎把我撞倒才看见我；他几乎把我撞倒才看见我； Before I could get in a word he had measured me.我还没来得及插话，他已经我还没来得及插话，他已经 给我量好了尺寸。给我量好了尺寸。 拓展：有关拓展：有关before特殊句型用法特殊句型用法 1）It will(not) be +时间段时间段+before+从句（现在从句（现在 时）意思是时）意思是“要过一段时间才要过一段时间才/用不了多长用不了多长 时间就时间就” It will not be long before we meet . 要不了多久要不了多

7、久 我们就会见面的。我们就会见面的。 It will be 5 days before you get your licence.你还你还 有有5天时间就拿到证来了天时间就拿到证来了 2）It was (not) +时间段时间段+before+从句（过去从句（过去 时），意思是时），意思是“过了一段时间才过了一段时间才/没过一段没过一段 时间就时间就” It was not long before our hometown was liberated没过多久我们的城镇就解放了。没过多久我们的城镇就解放了。 till, until只用于时间只用于时间，以下句子是错误的：，以下句子是错误的： We

8、 walked /till the edge of the forest. （要用要用as far as或或to表达表达）。）。 例如：例如：As you are tired, you had better rest. Since everyone is here, now lets begin. 5、although和和though although和和though引导让步状语从句往往用法引导让步状语从句往往用法 一样，但注意以下区别：一样，但注意以下区别： although用于各种文体，而用于各种文体，而though则多用于非则多用于非 正式的口语或书面语中。注意正式的口语或书面语中。注意

9、由由although, though引导的从句后，主句不能用引导的从句后，主句不能用but，但可但可 用副词用副词yet, still。例如：。例如： Although/ Though it rained all the morning, they still went on working.（或（或yet they went on working） 6、once用法用法 once作副词译作副词译“曾经曾经”，作为连词译，作为连词译 “一旦一旦”，引导条件状语从句。相当于，引导条件状语从句。相当于 if的加强形式。例如：的加强形式。例如：I dont believe he was once a

10、 thief. (once这里是副词这里是副词) Once Aristotle had made up his mind that heavy objects always fell faster than light objects, he taught it as a truth to his students. (once连词连词) 7、unless引导条件状语从句等于引导条件状语从句等于if not 。例如：。例如：Hell accept the job unless the salary is too low. = Hell accept the job if the salary

11、is not too low. 看下列这道题看下列这道题 He had never been praised before _he went to university. A unless B. until C. when D, if B. Until 从从句中时态：句中时态：主将从现主将从现 9、whether, if引导从句的用法区别：引导从句的用法区别： 引导主语从句、表语从句或同位语引导主语从句、表语从句或同位语 从句时，用从句时，用whether，不用，不用if。例如：例如： Whether they will go to the Great Wall is not known. T

12、he question is whether we can finish the task on time. The question whether we will take part in the physics contest has not been decided. whether可接不定式，而可接不定式，而if则不可则不可。例如：。例如：I havent decided whether to leave or not. whether可作介词的宾语或置于句首表示强调，可作介词的宾语或置于句首表示强调， 而而if则不可。例如：则不可。例如：Everything depends on

13、whether we have enough money. Whether he will come, I am not sure. whether和和if均可引导宾语从句，均可引导宾语从句， whether 引导的宾语从句一般都是肯定句，引导的宾语从句一般都是肯定句，if引导的宾引导的宾 语从句可以是肯定的，也可以是否定的（此语从句可以是肯定的，也可以是否定的（此 时不能用时不能用whether），例如：），例如：Could you tell us whether/ if it rains in winter in Australia? I wonder if it doesnt rain.

14、 引导宾语从句的引导宾语从句的whether和和if常可与常可与or not连用。连用时要注意连用。连用时要注意or not的位置，有的位置，有 时候与时候与 whether、if分开使用，有时它可与分开使用，有时它可与 whether合起来使用，但合起来使用，但不能与不能与if合起来使合起来使 用用。例如：。例如：I dont know whether/ if they will come or not. I dont know whether or not they will come. （这时候不能用（这时候不能用if） if可用来引导条件状语从句，译可用来引导条件状语从句，译“如果如果

15、”， whether则不行。例如：则不行。例如：If you work hard, you are sure to succeed. 10、as作从属连词可引导多种状语从句。作从属连词可引导多种状语从句。 as引导时间状语从句，意为引导时间状语从句，意为“当当时时”。例如：。例如： As (he was) a young man, he was a storekeeper and later a postmaster./ He sang as he worked. as引导方式状语从句，意为引导方式状语从句，意为“象象一样一样”。例如：。例如： We must do as the Party

16、teaches us. as引导原因状语从句。意为引导原因状语从句。意为“由于由于”，例如：，例如： As you are tired, you had better rest. as引导让步状语从句。意为引导让步状语从句。意为“虽然虽然”、“尽管尽管” Child as he is, he can do it well. ( = Although he is a child, he can do it well.) 另外，另外，as做为关系代词还可以引导定语从句，如：做为关系代词还可以引导定语从句，如： I have the same book as you. 专项巩固专项巩固-连词连词 请

17、同学们做试卷上的习题请同学们做试卷上的习题 练习、连词练习、连词 1 .He is very old,_ he still works very hard. A. but B.if C.when D.as 2. _ you are dismissed. A. Neither you go nor B. Either you go or C. Whether you go or D. Both you go and 3. They had camped露营露营 once before, _ they knew what to take. A. because B. now C. so D. si

18、nce 4. Why these things happened was _ the driver had been careless. A. because of B. owing to C. due to D. that 5. Although, its raining, _are still working in the fields. A. they B. but they C. and they D. so they 6._we have satisfied you, you have no grounds理由理由 of complaint. A. So B. Since that

19、C. Now that D. By now. 7. Write clearly _ your teacher can understand you correctly. A. since B. for C. because D. so that 8.Youll miss the train _ you hurry up. A. unless B. as C. if D. until 9. Francis did the task_ his brother. A. as good as B. as better as C. as well as D. as best as 10.The size

20、 of the audience,_ we had expected, was well over twenty thousand. A. as B. what C. that D. whom 11.I thought he hated the TV .You are right,_ he still watches the program. A. yet B. besides C. also D. then 12. It looks _ its going to rain. A. that B. as C. as if D. like that 13._ to New York, her f

21、ather has not heard from her. A. Because she went B. After she went C. When she went D. Since she went 14._he daydreamed, Peter saw figures in the sky. A. Until B. Since C. While D. During 15. We arrived at the station _ the train had left. A. after B. before C. since D. when 16._ he was in poor hea

22、lth, he worked just as hard as everyone else. A. But B. Although C. Even if D. If 17. Give me one more minute _ Ill have finished.A. so B. until C. and D. when 18. The worker hunted for jobs in New York for months,_ he could not find any work. A. and B. yet C. or D. and but 19. Hurry up, _ youll be

23、late. A. or B. and C. so D. yet 20. Do not make the same mistake _ I did. A. so B. as C. like D. that 21. My sister is waiting for me,_ I must be off now. A. however B. or C. so D. otherwise 22. We should pay attention _ to industry _ to agriculture. A. either, or B. neither, nor C. not, but D. both

24、, and 23. He ran off_ I could stop him. A. before B. after C. since D. when 24._ you told me, I had heard nothing of what happened. A. Till B. Until C. After D. Since 25. Where have you been _ you left home? A. before B. as C. since D. when 26._ the problem of method is solved, talking about the tas

25、k is useless. A. Until B. SinceC. AfterD. Unless 27. We have produced 15% more cotton this year_ we did last year. A. as B. than C. like D. white 28.It is late; _, Im too tired to go out. A. besides B. except C. except for D. except that 29. Everything around us is _ solid .liquid _ gas. A. not . .b

26、ut. B. either. .or. C. neither. .nor. D. whether. .or. 30. He will come _ you ask him. A. whether B. unless C. if D. while 31._ he will come or not is still unknown. A. If B. Where C. That D. Whether 32.I don t know _ to stay at home or go out. A. whether B. if C. how D. where 33. He spoke loudly _

27、the audience could hear him clearly. A. so B. that C. so that D. in order to 34. The book is not easy._ its rather difficult. A. On the one hand B. On the contrary C. On the other hand D. On the other contrary 35. You must work hard,_ you will not learn English well. A. if B. whether C. otherwise D.

28、 unless 36. It rained heavily,_ the basketball match had to be put off. A. so that B. when C. otherwise D. therefore 37. We must do _ the people want us to do. A. whatever B. however C. wherever D. whenever 38. You are certainly right,_ others may say. A. what B. whatever C. that D. as 39._ makes mi

29、stakes must correct them. A. Who B. What C. Whoever D. Whatever 40.Ill discuss it with you _ you like to come. A. when B. where C. whoever D. whenever 41._ you work, you must always serve the people heart and soul. A. Wherever B. Whenever C. Where D. When 42._you understand this rule, you will have

30、no further difficulty. A. Once B. At once C. Only D. Only then 43._ difficult the task may be, we must fulfil it this month. A. No matter how B. No matter what C. No matter when D. No matter where 44. We can surely overcome these difficulties _,_ we are closely united. A. so far as B. so long as C.

31、as soon as D. as well as 45._ I know he will stay here for half a year. A. as soon as B. as long as C. so far as D. as well as 46. Please write me _ you arrive in New York. A. as well as B. so long as C. as far as D. as soon as 47. That is not _ I want. A. that B. why C. what D. whose 48. _ he did i

32、t remains a secret. A. What B. Whom C. Which D. How 49. It is quite clear _ he wont see us. A. what B. that C. why D. how 50. Would you tell me _ way I should take? A. what B. that C. which D. whose 51. I am sure _ you said is true. A. what B. that C. which D. who 52. The trouble is _ we can not fin

33、d such an expert. A. why B. that C. where D. / 53. It has not been decided _ they will leave. A. why B. when C. which D. what 54. We shall go _ you are ready. A. while B. as soon as C. as D. since 55. He will tell you about it _ you get there. A. while B. as C. when D. / 56. Dont try to get off the

34、bus _ it has stopped. A. while B. as C. since D. before 57. Ill come and see you _ I go to the countryside. A. while B. when C. as soon as D. before 58. _ he came to study in the university, he has made much progress in the study of English. A. While B. When C. Since D. After 59. Things have changed a lot _ I wrote to you last time. A. when B. since C. as