2024年中考英语复习连词专题讲义

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连词专题
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概述
连词是一种虚词，它是用来连接单词、短语或句子的词，在句中不能单独作句子成分。连词按照性质可以分为并列连词和从属连词。并列连词引导并列句，从属连词引导从句。初中要求掌握的从句有宾语从句、状语从句与定语从句。
连词分类
1. 并列连词
1）表示连接两个同等概念
使用方法 例示
and,连接并列部分，用于肯定句, 否定句把and 变or Tom and I are students.
both…and两者都 (两者都强调，谓语动词为复数) Both Tom and I are students.
not only…but (also) 不但…而且 (强调后者，就近原则) Not only Tom but also I am a student.
neither…nor 既不……也不…… (就近原则) Neither you nor he is a student.
as well as, with , together with 也 (强调前者，就远原则) The students as well as their class teacher come here.
2) 表示选择的并列结构
a. or "或者"
b. either…or "或者……或者……" (就近原则) Either you or I am right.
3) 表示转折或对比
a. but表示转折，while表示对比
Some people love cats, while others hate them.
b. not…but… "不是……而是……"
4) 表示因果关系
a. for是并列连词，不能置于含两个并列分句的句子的句首，只能将其放在两个分句中间
b. so, therefore
2. 从属连词
1) 引导宾语从句的从属连词有：that, if, whether, what, where, how等特殊疑问词；
2) 引导状语从句的从属连词：
从句种类 主要从属连词
时间状语从句 when, while, as, as soon as, since, before, after, until, till等
条件状语从句 if, unless
目的状语从句 in order that, so that
结果状语从句 so…that, such…that, so that, so
原因状语从句 because, as, since, now that
让步状语从句 although, though
比较状语从句 as…as, than, not as/so…as, the more…the more
*地点状语从句 where, anywhere, everywhere
a.时间状语从句中的连词
时间状语从句是由when, as, while, after, before, since, until, as soon as 等从属连词引导的状语从句。
时间状语从句中的连词 用法
when 当…的时候
while ①当……时 表示主从句的动作同时发生, while后引导的状语从句的动词必须是持续动词或状态，用进行时；也允许主从句都用进行时。 ②表示对比，解释为“而”
as soon as 一…..就……（主将从现）
since 自……以来，到现在 主句动词必须是持续动词，一般用现在完成时，从句用一般过去时。
till / until till在口语中用的较多，句首一般用until，而不用till。 They walked till /until it was dark. (主句动词是持续动词) Xiao Ming didn’t leave home till / until his father came back. (主句动词是瞬间动词)
b. 条件状语从句中的连词：if, unless(=if…not)
a) 时态:主将从现(当主句是将来时的时候,从句要用一般现在时表示将来的动作）
b) 主句+ if/unless连接的条件状语从句，可以和“祈使句+ and/or连接的并列句”互换
如： Work hard, or you won’t catch the other students.
=Unless you work hard, you won’t catch the other students.
= If you don’t work hard, you won’t catch the other students.
c. 原因状语从句中的连词:because, since, as, now that
I didn’t go to school yesterday because I was ill.
在语气上最重, 表示的是直接理由,回答why 时只能用它；不能与so连用。
Since / Now that everybody is here, let’s begin our meeting.
表示双方已知的事实或理由，强调未发生的结果。
As you are in poor health, you should not stay up late.
表示双方已知的事实或理由，强调已发生或经常发生的结果。
d. 结果状语从句中的连词
结果状语从句中的连词 so…that, such…that(如此…….以至于…….)
常考形式 同义句转换
so/such…that+肯定句 = …adj./adv. + enough (+for sb.)to do sth.
so/such…that+否定句 = too +adj. /adv+(+for sb.)to do sth. = … not adj./adv. + enough (+for sb.)to do sth.
The boy is so young that he can’t go to school. (保持句子基本意思不变）
=The boy is too young to go to school
=The boy is not old enough to go to school
e. 目的状语从句中的连词
目的状语从句中的连词 so that, in order that
常考形式 同义句转换
主句+so that/in order that+从句(肯定) =… in order to/so as to do sth.
主句+so that/in order that+从句(否定) =… in order not to/so as not to do sth.
He walked quickly so that he could get there on time.
=He walked quickly in order that he could get there on time.
=He walked quickly in order to get there on time.
=He walked quickly so as to get there on time.
f. 让步状语从句中的连词: though, although
though, although都不能和but连用,但是他们都可以同yet (still) 连用
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Practice
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I. Choose the best answer.
I enjoy listening to the rock music, but ______ my father ______ my mother likes it.
A. neither...nor B. not only...but also C. either...or D. both...and
2. Terry did very well in the interview, ______ he got his dream job in IBM.
A. for B. so C. but D. or
3. We listened eagerly and carefully, ______ he brought news of our families.
A. and B. but C. so D. for
4. – Look! Here comes the school bus.
– No hurry. Don’t get on it ______ it has stopped. （2013年一模 虹口）
A. until B. after C. since D. when
5. Will you help him ______ you see an old man lying in the middle of the street
A. though B. when C. because D. unless
6. The two boys were walking along the river ______ they heard a shout for help.
A. although B. since C. when D. as
7. Mr. Brown has worked as an English teacher in Shanghai University ______ 2008.
A. before B. since C. for D. after
8. You’ll never succeed ______ you don’t work hard.
A. if B. until C. unless D. when
9. You won't know what's happening in the world ______ you read newspapers every day.
A. if B. unless C. because D. after
10. ______ Jeremy broke his leg last year, he performed very well on the basketball court in the new season.
A. When B. Because C. Although D. If
II. Rewrite the sentences as required.
Be quick, or you can’t catch the bus. (保持句意基本不变)
__________ you __________ quick, you can’t catch the bus.
You will be unhealthy if you don't do exercise regularly.（保持句意不变）
You will be unhealthy __________ you __________ exercise regularly.
3. Detective Ken examined the room carefully in order to find some clues. (保持句意不变)
Detective Ken examined the room carefully __________ __________ he could find some clues.
4. We shouldn’t talk loudly in the theatre. We shouldn’t smoke there, either. (保持句意不变)
We should __________ talk loudly __________ smoke in the theatre.
5. Sometimes children are so young that they can’t tell the bad from the good. (保持句意不变) Sometimes children aren’t __________ __________ to tell the bad from the good.
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Homework
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I. Choose the best answer.
I have something important to discuss with Tim. I will wait for Tim ______ he gets back.
A. as B. until C. when D. after
2. You can buy computers at a local shop. They’re usually more expensive, ______ you can get better after-sales service.
A. and B. but C. so D. or
3. The manager thought the old lady was right, ______ he didn't take her advice.
A. or B. so C. but D. and
4. I decided not to buy frozen dumplings ______ the government said they were safe.
A. because B. though C. since D. or
5. The police asked ______ we saw anybody break into the house to steal things.
A. who B. if C. what D. where
6. We will remember the picture ______ it is silly, strange and colorful.
A. unless B. if C. before D. after
7. ______ he was tired after the daily hard work, Mo Yan was hungry for books.
A. Since B. As soon as C. Although D. Until
8. You will end up in hospital ______ you go on smoking like that.
A. unless B. if C. because D. until
9. My father didn’t give up smoking ______ the doctor told him to do so.
A. unless B. when C. until D. after
10. You are not allowed to enter the exhibition ______ you have a ticket.
A. if B. when C. unless D. because
11. He lost his key, ______ he had to wait for his wife's return in the cold.
A. and B. or C. for D. so
12. Scientists say we will have no water to drink ______ we protect water resources.
A. if B. when C. before D. unless
13. He plans to have a good rest ______ he’ll have enough energy to continue his work.
A. so that B. in order to C. as soon as D. now that
14. He is getting fat, ______ he has decided to go to work on foot.
A. so B. though C. because D. and
15. Take your glasses with you, ______ you can’t enjoy the performance.
A. or B. so C. and D. for
16. Joe left for Los Angeles ______ he got his uncle’s telephone call.
A. now that B. as soon as C. although D. so that
17. Hurry up, ______ you will be late for the evening performance.
A. and B. but C. so D. or
18. I can’t go to see the film with you tonight ______ I’m too busy.
A. though B. until C. because D. unless
19. Richard caught a bad cold yesterday, ______ he had to stay at home.
A. because B. but C. or D.so
20. My father won’t believe it ______ he sees it with his own eyes.
A. if B. when C. as D. unless
21. About 6,000,000 graduates in China are looking for jobs. Some companies are likely to leave more jobs open, ______ others are cutting jobs.
A. so B. and C. but D. or
22. ______ all of us can learn to love, everything around us will be a wonder.
A. Because B. If C. Before D. Although
23. “You can have some cakes, ______ you must wash your hands first.” Mum says.
A. and B. or C. but D. because
24. I will take a holiday with my family ______ I finish all the exams.
A. so that B. as C. as soon as D. while
25. You should spend more time on your study, ______ you won’t pass the exam.
A. so B. or C. but D. and
26. Mr. Li won’t allow us to play football ______ we’ve finished our homework.
A. if B. when C. because D. unless
27. Try your best, ______ you will make great progress in your study.
A. but B. if C. or D. and
28. We won’t know the news ______ they tell us about it.
A. when B. until C. after D. though
29. The cyclist held his raincoat tightly ______ the wind couldn’t blow it away.
A. so B. so that C. when D. because
30. ______ Tom ______ Mary is busy at the moment. You’d better play with others.
A. Both…and B. Not only…but also C. Neither…nor D. Either…or
31. I want ______ coffee ______ tea at the moment. I’d prefer a cup of iced juice.
A. not only…but also B. both…and C. neither…nor D. either…or
32.Jane was ill yesterday, ______ she didn’t come to school this morning.
A. or B. and C. so D. but
33. You should make a good plan ______ you do anything important.
A. before B. after C. though D. until
34. A good friend always gives you a helping hand ______ you’re in trouble.
A. when B. before C. until D. though
35. ______ you have made up your mind to lose weight, you’d better eat less in the evening.
A. Since B. Although C. Unless D. Until
36. Mind your steps as you go, ______ you’ll fall down onto the wet ground.
A. and B. but C. or D. so
37. Every Double Ninth Festival people climb up high ______ they think they can get good luck and live a long life.
A. because B. so that C. as soon as D. though
38. I wonder ______ the scientist will come to our school tomorrow to give us a talk or not.
A. when B. whether C. where D. that
39. The Australian wildfires this year killed many people ______ animals.
A. so B. or C. as well as D. but
40. ______ you have been to America for many times, you must know something about this country.
A. Since B. Although C. Unless D. When
II. Rewrite the sentences as required.
1. “Can I keep the magazine for two weeks ” the boy asked the librarian.(改为含有宾语从句的复合句)
The boy asked the librarian __________ he __________ keep the magazine for two weeks.
2. “Have you seen the exciting film before ” Linda asked her husband.(合并为一句)
Linda asked her husband __________ he __________ seen the exciting film.