2023届中考英语核心语法专题训练：状语从句 精讲精练（通用版·含解析）

中小学教育资源及组卷应用平台
2023届中考英语核心语法专题训练：
状语从句 精讲精练（通用版*含解析）
Part I 知识精讲
一．状语从句分类：思维导图
二．状语从句知识详解
用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句， 原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。
1. 时间状语从句
(1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。
例如：
It was raining hard when 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)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如：
I’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)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如：
The young man read till the light went out.
Let’s wait until the rain stops.
We won’t start until Bob comes.
Don’t get off until the bus stops.
while和when都是表示同时，到底句子中是用when还是while主要看从句和主句中所使用的动词是短暂性动作（瞬时动词）还是持续性动作。
1、若主句表示的是一个短暂性的动作，而从句表示的是一个持续性动作时，两者都可用。如：
He fell asleep when [while] he was reading. 他看书时睡着了。
I met him when [while] I was taking a walk in the park. 我在公园散步时遇到了他。
2、若主、从句表示两个同时进行的持续性动作，且强调主句表示的动作延续到从句所指的整个时间，通常要用 while。如：
Don't talk while you're eating. 吃饭时不要说话。
I kept silent while he was writing. 在他写的时候，我默不作声。
3、若从句是一个短暂性动作，而主句是一个持续性动作，要用 when 但不用 while。如：
When he came in, I was listening to the radio. 他进来时，我在听收音机。
It was raining hard when we arrived. 我们到达时正下着大雨。
4、若主、从句表示的是两个同时(或几乎同时)发生的短暂性动作，一般要用 when。如：
I thought of it just when you opened your mouth. 就在你要说的时候，我也想到了。
2. 条件状语从句
(1)条件状语从句通常由if, unless引导。例如：
What shall we do if it snows tomorrow
Don’t leave the building unless I tell you to.
(2)在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。例如：
I’ll help you with your English if am free tomorrow.
He won’t be late unless he is ill.
(3)“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带有条件状语从句的复合句。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.
3. 原因状语从句
(1)原因状语从句通常由because, since, as引导。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.
because表示直接原因，语气最强。
（2）Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。As和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。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不能同用在一个句子里。
4. 结果状语从句
(1)结果状语从句由so…that, such…that, so that引导。例如：
He is so poor that he 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…that语such...that可以互换。例如：
在由so...that引导的结果状语从句中，so是副词，与形容词或副词连用。其结构是: “...so + 形容词（副词）+ that + 从句”。例如：
He was so glad that he couldn’t 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such…that引导的结果状语从句中，such是形容词，它修饰的可以是单数或复数可数名词，也可以是不可数名词；名词前面可以带形容词，也可不带。如果是单数可数名词，前面需加不定冠词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 touch the ceiling.
He made such rapid progress that he did very well in the mid-term.
有时上述两种结构是可以互换的。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 match is so important that nobody wants to miss it.
(3)如果名词前由many, much, little, few等词修饰时，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.
5. 比较状语从句
比较状语从句通常由as…as, 比较级 + than…等连词引导。例如：
Tom runs faster than John does.
This classroom is as big as that one.
6. 目的状语从句
(1)目的状语从句通常由 so that, in order that引导。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.
so that既可引导目的状语从句，又可引导结果状语从句。
区别这两种从句的办法有两个：
目的状语从句里往往带有情态动词can, could, may, might等。
2)从意思上看，目的状语从句往往表示的目的很明确。例如：
Speak clearly so that they may understand you. (目的状语从句)
Jack is badly ill so that he has to rest. (结果状语从句)
7. 让步状语从句
(1)让步状语从句通常由although, though等连词引导。例如：
Though he is young, he knows a lot.
Although I am tired, I must go on working.
(2)although(though)和but不能用在同一个句子中。例如：
我们不能说：Though it was raining hard, but he still went out.
应该说：Though it was raining hard, he still went out.或It was raining hard, but he still went out.
8. 地点状语从句
地点状语从句常常由where来引导。例如：
Go where you like.
Where there is a will, there is a way. 有志者事竟成。
Part II 专题训练 状语从句100题（含解析）
单项选择
A组
1．（2022·内蒙古包头·中考真题）Many wild animals don’t have a safe place to live, ________ villages and farms are growing bigger and taking away their land.
A．because B．until C．although D．before
2．（2022·黑龙江绥化·中考真题）—The big stone is ________ heavy ________ I can’t carry it alone.
—Don’t worry. I will help you.
A．such; that B．so; that C．too; to
3．（2022·黑龙江·中考真题）It’s necessary to learn English well, ________ it’s a little difficult.
A．unless B．although C．as
4．（2022·贵州毕节·中考真题）________ the weather improves, we’ll have to cancel the outdoor picnic.
A．Unless B．If C．Because D．When
5．（2022·黑龙江·中考真题）The Battle of Changjin Lake is ________ wonderful movie ________ I want to see it again.
A．such a: that B．so; that C．such an; that
6．（2022·黑龙江齐齐哈尔·中考真题）Learning to write is learning to think. ____ , you won’t know things clearly.
A．if you write them down
B．unless you write them down
C．if you won’t write them down
7．（2022·广西贺州·中考真题）I won’t go to the movies this afternoon ________ I’m free.
A．or B．unless C．because D．than
8．（2022·江苏无锡·中考真题）You will not get the special gift ________ you finish all the tasks.
A．after B．because C．while D．unless
9．（2022·福建·中考真题）We are making a big cake ________ it’s Dad’s birthday today.
A．because B．until C．once
10．（2022·江苏泰州·中考真题）—It is impossible to finish the difficult task in such a short time on my own ________ both of us work together.
—No problem. Let’s start!
if B．but C．because D．unless
11．（2022·广西河池·中考真题）Our classroom won’t be clean ________ we clean it every day.
A．after B．while C．unless D．because
12．（2022·辽宁盘锦·中考真题）The little boy won’t go to sleep unless his mom _________ him a story.
A．tells B．told C．is telling D．will tell
13．（2022·辽宁营口·中考真题）My pen friend knows a lot about China ________ she has never been here.
A．although B．if C．because D．until
14．（2022·黑龙江哈尔滨·中考真题）—Happiness is about having each tiny wish come true.
—________ we work hard, we’ll make our life full of happiness.
A．If B．Unless C．Though
15．（2022·山东菏泽·中考真题）—Daddy, can I go out to play soccer with my friends now
—Well, you can’t go ________ you finish your homework first.
A．if B．since C．unless
16．（2022·广西·中考真题）Mr. Zhao has given much money to Project Hope ________ he is not so rich.
A．if B．though C．because D．unless
17．（2022·广西·中考真题）I don’t know if it _________ tomorrow, but if it _________, I’ll stay at home.
A．will rain; rains B．will rain; will rain C．rains; will rain D．rains; rains
18．（2022·江苏徐州·中考真题）Dad sometimes goes to the supermarket with us ________ he hates going shopping.
A．because B．so C．though D．if
19．（2022·辽宁辽宁·中考真题）Teenagers should do some housework ________ they finish their homework.
A．until B．but C．after D．unless
20．（2022·黑龙江·中考真题）—I don’t know when Susan ________.
—Don’t worry. When she ________, I will tell you.
A．comes; will come B．will come; comes C．come; comes
21．（2022·四川·凉山彝族自治州教育科学研究所中考真题）—Time to go home, Peter.
—Wait a minute. I can’t go home ________ I finish cleaning the hallway.
A．since B．after C．until
22．（2022·湖北十堰·中考真题）To avoid the virus (病毒), we should wash hands more carefully ________ we have meals.
A．so B．before C．because D．although
23．（2022·河北·中考真题）________ you can use your dictionary, you will learn English better.
A．If B．Unless C．Though D．Before
24．（2022·江苏宿迁·中考真题）Yesterday, Lin Tao’s speech on how to be a good volunteer was ________ wonderful that we couldn’t stop cheering for him.
A．so B．very C．too D．quite
25．（2022·湖南岳阳·中考真题）I will return it to the library _______ I finish reading Little Women.
A．no longer B．as soon as C．so that
26．（2022·天津·中考真题）Before you get off the bus, you should wait ________ it has stopped.
A．until B．but C．because D．so
27．（2022·江苏扬州·中考真题）________ astronauts go on spacewalks, they wear spacesuits to keep themselves safe.
A．Though B．Till C．When D．Unless
28．（2022·湖南怀化·中考真题）I want to buy something special for my grandmother, _______ her birthday is coming.
A．because B．although C．so
29．（2022·云南昆明·中考真题）________ Yuan Longping, the Father of Hybrid Rice, has passed away, he is forever in my mind.
A．If B．Unless C．Before D．Although
30．（2022·云南·中考真题）For your safety, you mustn’t get close to the train ________ it stops.
A．while B．when C．since D．until
31．（2022·浙江温州·中考真题）—Mum, may I have more chocolate
—You’d better not ________ too much sweet food is bad for health.
A．until B．while C．although D．because
32．（2022·江西·中考真题）________ many things change a lot, a love of sports hasn’t changed a bit.
A．If B．Before C．Though D．Because
33．（2022·安徽·中考真题）You won’t fully experience the culture of a foreign country ________ you go there in person.
A．because B．unless C．as soon as D．as long as
34．（2022·四川达州·中考真题）The local government advises people ________ to other places ________ it is not necessary during the pandemic.
A．travel; unless B．to not travel; if C．not to travel; unless D．not to travel; if
35．（2022·四川泸州·中考真题）—Peter, how long have you been in the ice skating club
—Not long. I didn’t join the club ________ I enjoyed the 2022 Beijing Winter Olympics.
A．when B．until C．unless D．after
36．（2022·重庆·中考真题）________ Zhang Guimei isn’t in good health, she works hard to help her students.
A．Although B．If C．Because D．When
37．（2022·重庆·中考真题）They have been friends ________ they first met.
A．since B．while C．before D．after
38．（2022·四川成都·中考真题）Mary has learned a lot about the history of Sichuan _______ she can be a tour guide.
A．even if B．as soon as C．so that
39．（2022·四川自贡·中考真题）—Learning to love is like learning to walk.
—Yes, ________ we step out bravely, we can find it easy.
A．although B．when C．unless
40．（2022·四川自贡·中考真题）—This math exercise is ________ difficult ________ I can’t work it out.
—Come on! Use your head and you will find a way.
A．such; that B．so; which C．so; that
41．（2021·四川资阳·中考真题）Huawei has put so much into research ________ it has become a great company in the world.
A．that B．while C．because D．as
42．（2021·西藏·中考真题）I wonder if he ________ time tomorrow；if he ________ free, I’ll invite him to give a speech in our school.
A．will have; is B．has; will be C．will; have D．has; is
43．（2022·安徽合肥·二模）Our team won’t win the match ________ every member works together.
A．when B．as C．unless D．although
44．（2022·黑龙江齐齐哈尔·三模）Your parents won’t let you go out by yourself ________ they are sure you’re safe.
A．since B．unless C．if
45．（2022·黑龙江哈尔滨·二模）—Every year’s school concert is amazing! ________ it is fine next Friday, our school will hold it on the playground.
—Wonderful! All of us will enjoy ourselves.
A．Although B．If C．Until
46．（2022·上海青浦·二模）A five-minute rest will refresh your mind ________ you feel stressed with schoolwork.
A．unless B．because C．although D．when
47．（2022·上海宝山·二模）It will cost you a lot of money ________ you choose to buy a flat in the city centre.
A．if B．although C．so that D．unless
48．（2022·黑龙江哈尔滨·三模）—I believe you will go into a good high school _______ you work hard from now on.
—Thanks. I will try my best, mom.
A．as long as B．as well as C．as soon as
49．（2022·上海崇明·模拟预测）________ we walked into the museum, we saw thousands of beautiful butterflies.
A．Now that B．As soon as C．Although D．So that
50．（2022·福建泉州·二模）At the meeting, the managers kept arguing about the problem ________ they reached an agreement.
A．after B．since C．until
B 组
1. —Can I go to the reading room
—You can’t __________ you have a student ID card. It’s only for students.
A. if B. because C. unless D. though
2. Love your parents ________ they are alive. Never wait until it is too late.
A. though B. because C. while D. until
3. —Claudia, are you going to Jeff’s birthday party on Saturday
—Unless I ________.
A. invited B. will be invited C. was inviting D. am invited
4. ________ Mr. Miller is very tired after a day’s work, he spends lots of time with his family.
A. If B. When C. Although D. As
5. —Why do you so admire your English teacher
—Er, ________ he is old, he is just like a young boy in class!
A. when B. because C. although D. if
6. — Is our Wechat account safe
— Yes, nobody can use it ________ they have the password.
A. unless B. when C. since D. if
7. Peter, you can’t leave your office ________ you finish your work.
A. if B. because C. when D. until
8. —Mom, I want to watch the program I Am a Singer IV now.
—You can watch it ________ you finish your homework.
A. if B. unless C. but D. so that
9. The ancient people often put the tokens（代币） on pieces of string（绳）________ they can carry them around easily.
A. but B. until C. when D. so that
10. —Labor (劳动) education is important to students’ development.
—I agree. ________ students can often help with housework, it will be good for them.
A. Unless B. Though C. Until D. If
11. —You won’t have a bright future ________ you try your best, Jack.
—Thank you, Mom. I’ll work hard.
A. unless B. once C. if D. after
12. —I don’t know how to be successful.
—________ you work hard, nothing is impossible.
A. As long as B. As soon as C. As many as D. As much as
13. Spend time talking with your parents, ____ they may not well understand you. Don’t wait ____ it’s too late.
A. and; until B. or; until C. but; after D. and; before
14. “Never too old to learn.” Mr. King still keeps on studying__________ he is over 80 years old.
A. but B. so C. although D. because
15. —I really want to pass the exam.
—Believe in yourself, dear! Your dream can come true _______ you put your heart into it.
A. even if B. as if C. as long as D. as soon as
16. ________ Alex is too heavy, ________ his mother doesn’t want him to eat too much.
A. Although; but B. Although; / C. Because; / D. Because; so
17. —Where is your father
—In the bedroom. He is ________ tired ________ he goes to bed early.
A. too; to B. so; that C. such; that D. so; but
18. The girl didn’t accept the gift ________ the young man told her the reason.
A. unless B. until C. when D. although
19. —Don’t worry about the final exam. You ________ it if you work hard.
—Thanks!
A. pass B. will pass C. passed D. have passed
20. ________ my grandpa is old, he looks very strong and healthy.
A. Because B. If C. Although D. When
21. ________ he was very tired, he kept working in his office.
A. Since B. Although C. As soon as D. Because
22. If I ________ to the park, I ________ my homework today. And my mom will be angry.
A. go; won’t finish B. will go; finish C. go; will finish D. will go; will finish
23. ________ you look after this coat carefully, it will keep you warm through many winters.
A. If B. Unless C. Before D. So
24. Singer is ________ interesting ________ many people like watching it.
A. so；that B. such；that C. so；as D. such；as
25. —Where will you go at the weekend
—We will go hiking ________ the weather is fine.
A. as long as B. and C. but D. or
26. —Why do you like science
—_________ I think it’s interesting.
A. And B. So C. But D. Because
27. The flowers will die ________ you water them every day.
A. when B. but C. unless D. until
28. —Could you go and watch the soccer game with me
—No, ________ you have two tickets.
A. if B. unless C. because D. so
29. —Could you help me do some cleaning tomorrow
—If I ________ free, I will do.
A. am B. will be C. was D. were
30. Lisa usually buys things online ________ she can save money and time.
A. so that B. such that C. as soon as D. so as to
31. The little boy didn’t stop crying ________ his mother came back.
A. until B. although C. if D. because
32. —It has been much easier for me to go to work _______ shared bikes appeared.
—But they also caused plenty of problems.
A. since B. before C. unless D. if
33. —How do you like that book
—I’m afraid that it’s ________ difficult for me ________ it.
A. so; that understand B. so; that understanding C. too; not to understand D. too; to understand
34. I practice basketball hard ________ I can become a basketball player like Yao Ming.
A. so that B. so C. that D. because
35. Lucy studies hard every day ________ she can get good marks.
A. in order to B. such that C. so that D. so as to
36. Although she believes it, ________ she will not take action at once.
A. but B. / C. and D. however
37. They ________ back to work until they get a rise.
A. didn’t go B. will go C. won’t go D. don’t go
38. Please speak louder ________ everybody can hear you clearly.
A. in order to B. in order that C. enough to D. although
39. Please speak louder ________ we can hear you clearly.
A. in order B. in order to C. so that D. as a result of
40. ________ the traffic was heavy, we got to the railway station on time.
A. Although B. Unless C. Since D. However
二. 根据中文意思完成下列英语句子，每空一词。
1. 不管他跟我开什么玩笑，我都不生气。
I am not angry with him, _______ _______ ______ jokes he ______ on me.
2. 布鲁斯太太对学生非常亲切，以至于学生把她当作母亲。
Mrs. Bruce was _______ kind to her students ______ they ______ her _____ their mother.
3. 只要我们竭尽全力，父母就会满意我们的表现。
Our parents will be pleased with our performance _____ _____ ______ we try our best.
4. 你一到上海就给我打个电话好吗？
Will you please call me ______ ______ ______ you get to Shanghai.
5. 这个七岁的女孩酷爱钢琴，以至于他已经坚持练习两年了。
The seven-year-old girl likes playing the piano ______ ______ ______ she has kept
practicing for two years.
6. 虽然她很忙，他还坚持自学英语。
_______ _______ ______ _______, she kept on learning English by herself.
7. 他长大后相当一名记者。
He wants to be a journalist ______ _______ _______ _______.
8. 无论刮风下雨，我们的老师总是第一个到校。
_______ _______ windy or rainy, our teacher is always the first to get to school.
9. 如果人人为保护环境做出贡献，世界将会变得更美好。
______ ______ ______ _____ _______ to protecting the environment, the world will become much more beautiful.
10. 李明昨天没来上学，因为他病了。
Li Ming didn’t come to school _______ _______ ______ ______.
参考答案
A组
1．A
【解析】句意：很多野生动物没有安全的地方住，因为村子和农场正在逐渐扩大，夺走了它们栖息之地。
考查连词。because因为；until直到；although尽管；before在……之前。根据“don’t have a safe place to live”及“villages and farms are growing bigger and taking away their land”可知，后面的句子表达原因，用连词“because”。故选A。
2．B
【解析】句意：——这块大石头太重了，我一个人搬不动。——别担心。我会帮助你的。
考查结果状语从句的连词。such...that...“如此……以至于……”，引导结果状语从句，中心词是名词；so...that...“如此……以至于……”，引导结果状语从句，中心词是形容词或副词； too...to...“太……而不能”，后接短语；根据“I can’t carry it alone”可知，此处应用连词连接，排除C选项；句子中心词强调的是“heavy”，是形容词，应用so...that...，故选B。
3．B
【解析】句意：学好英语是必要的，虽然有点难。
考查连词辨析。unless除非；although尽管；as因为。前后句暗含转折含义，应用although引导让步状语从句。故选B。
4．A
【解析】句意：除非天气好转，否则我们将不得不取消户外野餐。
考查连词辨析。unless除非；if如果；because因为；when当……时。根据“the weather improves, we’ll have to cancel the outdoor picnic.”可知，除非天气好转，否则要取消野餐活动，用unless引导条件状语从句，故选A。
5．A
【解析】句意：《长津湖》是一部如此精彩的电影，我想再看一遍。
考查such...that...结构。此处是结果状语从句，so强调形容词、副词，such强调名词，此处强调的是“movie”，“wonderful”首字母发辅音音素。故选A。
6．B
【解析】句意：学习写作就是学习思考。除非你把它们写下来，否则你不会清楚地知道事情。
考查状语从句。结合“you won’t know things clearly.”可知，此处指的是“除非写下来，否则……”，应用unless引导条件状语从句，故选B。
7．B
【解析】句意：除非我有空，否则今天下午我不会去看电影的。
考查连词辨析。or否则，或者；unless除非；because因为；than比。根据“I won’t go to the movies this afternoon...I’m free.”可知，后句是前句的否定条件，除非有空否则不会去看电影。故选B。
8．D
【解析】句意：除非你完成所有的任务，否则你不会得到特别的礼物。
考查连词辨析。after在……之后；because因为；while当……时。unless除非。根据“You will not get the special gift … you finish all the tasks.”可知，本句是unless引导的条件状语从句，表示“除非”。故选D。
9．A【解析】句意：我们正制作一个巨大的风筝，因为今天是爸爸的生日。
考查连词。because因为；until直到；once一旦。根据“We are making a big cake”及“it’s Dad’s birthday today”，可知前后是因果关系，后面句子解释原因，用连词“because”连接。故选A。
10．D
【解析】句意：——除非我们两个一起努力，否则我一个人不可能在这么短的时间内完成这项艰巨的任务。——没问题。让我们开始吧！
考查连词辨析。if如果；but但是；because因为；unless除非。根据“It is impossible to finish the difficult task in such a short time on my own...both of us work together.”可知，前后句是条件关系，除非两个人一起努力，否则不能完成任务。故选D。
11．C
【解析】句意：如果我们不每天打扫，我们的教室就不会干净。
考查连词辨析。after在……之后；while当……时候；unless除非，如果不；because因为。前半句表示“教室不会干净”，而后半句表示“我们每天打扫”。空白处应用unless，意为“除非”，引导条件状语从句。故选C。
12．A
【解析】句意：小男孩不会去睡觉，除非他妈妈给他讲故事。
考查条件状语从句的主将从现。分析句子结构，unless引导条件状语从句，主句中的“won’t”说明主句用一般将来时，根据“主将从现”原则，从句应用一般现在时来表示将来的动作。从句主语his mother为第三人称单数，因此动词tell也应用动词的第三人称单数形式tells。故选A。
13．A
【解析】句意：我的笔友对中国很了解，尽管她从未来过这里。
考查连词辨析。although虽然、尽管；if如果；because因为；until直到。根据句意可知，空前空后是让步关系，应用although引导让步状语从句。故选A。
14．A
【解析】句意：——幸福是每一个微小愿望的实现。 ——如果我们努力工作，我们将使我们的生活充满幸福。
考查连词辨析。if如果；unless除非；though尽管。“we work hard”与“we’ll make our life full of happiness”是条件关系，如果努力工作，生活就会充满幸福，故选A。
15．C
【解析】句意：——爸爸，我现在可以和朋友们出去踢足球吗 ——嗯，你不能去，除非你先完成作业。
考查从属连词辨析。if如果；since自从；unless除非。根据“you can’t go”和“you finish your homework first”可知要去踢足球的前提是先完成作业，因此应用unless“除非”来连接，此处unless引导条件状语从句。故选C。
16．B
【解析】句意：赵先生给希望工程捐了很多钱，虽然他不是很富有。
考查从属连词辨析。if如果；though虽然；because因为；unless除非。前后句之间表达的是一种相反的让步关系，因此用though引导让步状语从句。故选B。
17．A
【解析】句意：我不知道明天会不会下雨，但如果下雨，我会待在家里。
考查if条件句和宾语从句。前半个句子中包含一个由if引导的宾语从句，根据时间标志词“tomorrow”可知，要用一般将来时，所以可以先排除选项CD；后半句子包含由if引导的条件状语从句，此时根据“主将从现”的原则，从句要用一般现在时，主语是第三人称单数，动词需要加s。故选A。
18．C
【解析】句意：爸爸有时会和我们一起去超市，虽然他讨厌购物。
考查连词辨析。because因为；so因此；though尽管；if如果。根据“Dad sometimes goes to the supermarket with us...he hates going shopping.”可知，尽管讨厌购物，还是和我们去超市，用though“尽管”，引导让步状语从句。故选C。
19．C
【解析】句意：青少年应该在完成家庭作业之后做一些家务活。
考查连词。until直到；but但是；after在……之后；unless除非。根据“do some housework”及“they finish their homework”可知表达做完家庭作业之后做家务活，用连词“after”引导时间状语从句。故选C。
20．B
【解析】句意：——我不知道苏珊什么时候来。——不用担心。她来的时候，我会告诉你的。
考查复合从句。空一是宾语从句，表示“不知道Susan什么时候来”，用一般将来时；空二是when引导的时间状语从句，遵循“主将从现”原则，空处需用一般现在时。故选B。
21．C
【解析】句意：——Peter，该回家了。——等一会。我要打扫完走廊才能回家。
考查连词辨析。since自从；after在……以后；until直到。根据“I can’t go home … I finish cleaning the hallway.”可知，此处用not…until表示“直到……才……”，故选C。
22．B
【解析】句意：为了避免病毒，我们应该在吃饭前更仔细地洗手。
考查连词辨析。so因此；before在……之前；because因为；although虽然。根据“we should wash hands more carefully...we have meals”可知，饭前要洗手，故选B。
23．A
【解析】句意：如果你能使用字典，你会学英语学得更好。
考查从属连词辨析。If如果；Unless除非；Though虽然；Before在……之前。根据“…you can use your dictionary, you will learn English better.”可知，此处空后为条件，且为肯定条件，使用if引导条件状语从句，故选A。
24．A
【解析】句意：昨天，林涛关于如何做好志愿者的演讲精彩到让我们忍不住为他欢呼。
考查副词辨析。so如此，修饰形容词或副词；very非常；too太；quite相当。根据“wonderful that we couldn’t stop cheering for him”可知此处是“so+adj./adv. that...”引导的结果状语从句，表示“如此……以致于”。故选A。
25．B
【解析】句意：我一看完《小妇人》，我就把它还到图书馆。
考查状语从句。no longer不再；as soon as一……就……；so that以便。根据“I will return”及“I finish reading”可知是时间状语从句，句子表达“一看完就归还”，用“as soon as”引导从句。故选B。
26．A
【解析】句意：你应该等到车停了再下车。
考查连词辨析。until直到；but但是；because因为；so因此，所以。根据“Before you get off the bus, you should wait...it has stopped.”可知，应该等到车停了再下车，用until引导时间状语从句，故选A。
27．C
【解析】句意：当宇航员进行太空行走时，他们会穿着宇航服来保护自己的安全。
考查连词辨析。Though虽然；Till直到；When当……时候；Unless除非。根据“astronauts go on spacewalks, they wear spacesuits to keep themselves safe”可知当宇航员太空行走时，他们会穿宇航服，用when引导时间状语从句。故选C。
28．A
【解析】句意：我想给我奶奶买点特别的东西，因为她的生日快到了。
考查连词。because因为；although虽然；so因此；空格前后句之间是因果关系，属于“前果后因”结构，应用because引导原因状语从句，故选A。
29．D
【解析】句意：杂交水稻之父袁隆平虽然去世了，但他永远在我的脑海里。
考查连词辨析。If如果；Unless除非；Before在……之前；Although虽然。根据“Yuan Longping, the Father of Hybrid Rice, has passed away, he is forever in my mind”可知前后两句是让步关系，用although引导让步状语从句。故选D。
30．D
【解析】句意：为了您的安全，在火车停下来之前，您千万不要靠近它。
考查连词辨析。while当……时；when当……时；since自从；until直到。根据“you mustn’t get close to the train … it stops”可知，此处用not…until表示“直到……才”，故选D。
31．D
【解析】句意：——妈妈，我可以再多点巧克力吗？——你最好不要，因为太多的甜食对你的健康不好。
考查连词辨析。until直到；while当……时；although尽管；because因为。根据“You’d better not… too much sweet food is bad for health”可知，空格后是在解释不能多吃甜食的原因，用because引导原因状语从句，故选D。
32．C
【解析】句意：虽然很多事情都改变了很多，但对体育的热爱丝毫没有改变。
考查连词辨析。If如果；Before在……之前；Though尽管；Because因为。根据“a love of sports hasn’t changed a bit”可知“许多事情都改变了很多”表示让步，用Though引导让步状语从句。故选C。
33．B
【解析】句意：除非你亲自去那里，否则你不会完全体验外国的文化。
考查连词辨析。because因为；unless除非；as soon as一……就；as long as只要。“you go there in person”是“You won’t fully experience the culture of a foreign country”的否定条件，用unless引导条件状语从句。故选B。
34．D
【解析】句意：当地政府建议人们在疫情期间，如果没有必要，不要前往其他地方。
考查非谓语动词和连词辨析。advise sb (not) to do sth“建议某人（不要）做某事”，排除AB。unless除非；if如果。根据“advises people...to other places”可知，“it is not necessary during the pandemic”是“The local government advises people...to other places”的肯定条件，用if引导条件状语从句。故选D。
35．B
【解析】句意：——彼得，你在滑冰俱乐部多久了？——时间不长。直到我欣赏了2022年北京冬奥会，我才加入俱乐部。
考查连词辨析。when当；until直到；unless除非；after在……之后。根据“Not long. I didn’t join the club...I enjoyed the 2022 Beijing Winter Olympics”可知加入俱乐部的时间不长，直到欣赏了冬奥会才加入，此处是结构“not...until”，意为“直到……才”。故选B。
36．A
【解析】句意：虽然张桂梅身体不好，但她努力帮助她的学生。
考查从属连词辨析。Although虽然；If如果；Because因为；When当……时。前后两句构成让步关系，用Although引导让步状语从句，故选A。
37．A
【解析】句意：他们自从第一次见面就一直是朋友。
考查连词辨析。since自从；while当……时；before在……之前；after在……之后。根据“They have been friends … they first met”可知，从句用一般过去时，主句用现在完成时，用since引导时间状语从句，故选A。
38．C
【解析】句意：玛丽了解了很多关于四川的历史，这样她就能当导游了。
考查连词。even if即使；as soon as一……就；so that以便，为了；了解四川历史的目的是为了当导游，故此处用so that引导目的状语从句，故选C。
39．B
【解析】句意：——学会爱就像学会走路一样。——是的，当我们勇敢地走出来，我们会发现它很容易。
考查连词辨析。although尽管；when当……时；unless除非。根据“we step out bravely, we can find it easy”可知，当勇敢地走出来时，会发现它很容易，故选B。
40．C
【解析】句意：——这道数学题如此的难以至于我计算不出来。——加油。动动脑，你会找到一种方法来解题的。
考查连词。表达“如此……以至于”可用“such+名词/名词短语+that+从句”或“so+形容词/副词+that+从句”。“difficult”是形容词，表达“如此难以至于”用“so difficult that”。故选C。
41．A
【解析】句意：华为在研究上投入了如此多, 以至于它已经成为世界上一家伟大的公司。
考查连词辨析。that常与so连用，so...that意为“如此……以至于”；while当……时候；because因为；as作为。根据题干可知，本题考查固定词组so...that，that引导结果状语从句，故选A。
42．A
【解析】句意：我想知道是否明天他有时间。如果他有空，我会邀请他在我们学校演讲。
考查动词的时态。动词“wonder”后是“if ”引导宾语从句，表达“是否明天他有时间”,根据“tomorrow” 可知从句是一般将来时，动词用“will have”。后半句是“if”引导的条件状语从句，主句用一般将来时，从句是一般现在时表示将来，表达“如果他有空”，be动词用“is”。故选A。
43．C
【解析】句意：除非每个队员都齐心协力，否则我们队不会赢得这场比赛。
考查连词辨析。when当……时候；as当……时候；unless除非，如果不；although尽管。根据“every member works together.”可知每个成员都齐心协力是赢得比赛的条件，应该用unless引导条件状语从句。故选C。
44．B
【解析】句意：你的父母不会让你独自外出，除非他们确信你是安全的。
考查从属连词辨析。since自从；unless除非；if如果。“they are sure you’re safe”是“Your parents won’t let you go out by yourself ”否定的条件，可用unless引导条件状语从句，相当于if not，故选B。
45．B
【解析】句意：——每年的学校音乐会都很精彩! 如果下周五天气好的话，我们学校将在操场上举行。——太棒了！我们所有人都会玩得很开心。
考查连词辨析。Although虽然；If如果；Until直到。“下周五天气好”是“我们学校将在操场上举行它”的条件，用If引导条件状语从句。故选B。
46．D
【解析】句意：当你在学业上感到压力时，一个五分钟的休息将使你的思维重新恢复活力。
考查连词辨析。unless除非；because因为；although尽管；when当……时。根据“you feel stressed with schoolwork.”和“A five-minute rest will refresh your mind”可知空后是时间状语从句，表示当有压力的时候。故选D。
47．A
【解析】句意：如果你选择在城市中心买一套公寓，它将花费你许多的钱。
考查连词词义辨析。if如果，引导条件状语从句；although虽然，引导让步状语从句；so that以便于，引导目的状语从句；unless除非，引导条件状语从句。根据“It will cost you a lot of money”和“you choose to buy a flat in the city centre”可知，此处应用if引导条件状语从句，表示“如果”。故选A。
48．A
【解析】句意：——我相信你将去一个好的高中只要你从现在开始努力学习。——谢谢，我会尽我最大的努力，妈妈。
考查连词辨析。as long as只要；as well as也；as soon as一……就。根据“you work hard from now on.”可知从句表示条件，引导条件状语从句的是A项“as long as”。故选A。
49．B
【解析】句意：我们一走进博物馆就看到成千上万只美丽的蝴蝶。
考查连词辨析。Now that既然；As soon as一……就；Although虽然；So that因此。根据“we walked into the museum, we saw thousands of beautiful butterflies.”可知，表达“我们一走进博物馆就看到成千上万只美丽的蝴蝶。”用As soon as引导从句。故选B。
50．C
【解析】句意：在会上，经理们一直在争论这个问题，直到他们达成了协议。
考查连词辨析。after在……之后；since自从；until直到。根据“they reached an agreement”可知，直到达成协议才停住争论；故选C。
B组
1. C
【解析】句意：——我可以去阅览室吗？——你不能除非你有学生卡。它只限于学生用。
考查连词词义辨析。if如果，引导条件状语从句；because因为，引导原因状语从句；unless除非，引导条件状语从句；though尽管，引导让步状语从句。分析语境可知是条件状语从句，空处表示“除非”。故选C。
2. C
【解析】句意：在父母活着的时候爱他们。永远不要等到为时已晚。
考查连词辨析。though虽然；because因为；while当……时；until直到。根据“Love your parents …they are alive. Never wait until it is too late.”可知，此处指在父母活着的时候爱他们，使用while引导时间状语从句。故选C。
3. D
【解析】句意：——克劳迪娅，你周六会去杰夫的生日派对吗？——除非我被邀请了。
考查被动语态。主语“I”和动词“invite”存在被动关系，要用被动语态；再根据“Unless I...”可知，此处省略了主句；unless引导的条件状语从句遵循“主将从现”，因此此处要用一般现在时的被动语态be done；主语为“I”，be动词用am，invite的过去分词为invited。故选D。
4. C
【解析】句意：虽然米勒先生在一天的工作后很累，但他花了很多时间和家人在一起。
考查连词辨析。If如果；When当……时；Although尽管；As当……时；根据语境可知，此处应用although引导让步状语从句，故选C。
5. C
【解析】句意：——你为什么这么佩服你的英语老师？ ——呃，虽然他年纪大了，但他就像班上的一个小男孩！
考查从属连词辨析。when当……时候；because因为；although虽然；if如果。分析句子可知，“he is old”和“he is just like a young boy in class”是让步关系，所以此处用although引导让步状语从句。 故选C。
6. A
【解析】句意：——我们的微信账户安全吗？——是的，没有人可以使用它，除非他们有密码。
考查连词辨析。unless除非；when当……时；since自从；if如果。根据“nobody can use it…they have the password”可知，此处指除非有密码，否则不能使用微信账户，故用unless引导条件状语从句。故选A。
7. D
【解析】句意：彼得，你不能离开你的办公室直到你完成你的工作。
考查连词。if如果；because因为；when当……时；until直到；根据“you can’t leave your office ...you finish your work”可知，直到完成工作才可以离开，是not...until的结构，故选D。
8. A
【解析】句意：——妈妈，我现在想看《我是歌手4》这个节目。——如果你完成作业，你就可以看。
考查连词。if如果；unless除非；but但是；so that以便于。结合句意，在你完成作业的条件下，你可以看那个节目，因此用if引导条件状语从句，故选A。
9. D
【解析】句意：古人常把代币系在绳子上，以便随身携带。
考查连词辨析。but但是；until直到；when当……时；so that以便。“把代币系在绳子上”是为了方便携带，所以空处用so that引导目的状语从句。故选D。
10. D
【解析】句意：——劳动教育对学生的发展具有重要意义。——我同意。如果学生能经常帮忙做家务，那对他们会有好处。
考查连词辨析。Unless除非；Though尽管；Until直到；If如果。根据“students can often help with housework”和“it will be good for them.”可知，前一句是后一句的前提条件，应用if引导条件状语从句。故选D。
11. A
【解析】句意：——除非你尽力，否则你不会有一个光明的未来，杰克。——谢谢你，妈妈，我会努力的。
考查连词辨析。unless除非；once一……就……；if如果；after在……之后。根据“You won’t have a bright future ... you try your best, Jack.”可知，除非你尽自己最大努力，否则你是不会有一个光明的未来的；结合句意，应用unless引导条件状语从句。故选A。
12. A
【解析】句意：——我不知道怎样才能成功。——只要你努力，没有什么是不可能的。
考查状语从句。As long as只要；As soon as一……就；As many as和……一样多；As much as和……一样多。根据“you work hard, nothing is impossible.”可知，前后句是条件关系，表示“只要你努力学习，没有什么事情是不可能的”。故选A。
13. B
【解析】句意：花时间和你的父母谈谈，否则他们可能不太理解你。不要等到为时已晚。
考查连词辨析。and和；until直到；or否则；but但是；after在……之后；before在……之前。第一句是“祈使句+and/or+陈述句”的结构，空格后是前半句的否定条件，应填or。根据“Don’t wait…it’s too late”可知，此处用not…until表示“直到……才”，故选B。
14. C
【解析】句意：“活到老，学到老。”金先生虽然已经80多岁了，但他仍然坚持学习。
考查连词辨析。but但是；so所以；although尽管；because因为。根据“he is over 80 years old”可知，前后两句是让步关系，although符合句意；故选C。
15. C
【解析】句意：——我真的想要通过考试。——相信你自己，亲爱的！只要你全身心地投入进去，你的梦想就会实现。
考查连词词义辨析。even if即使，引导让步状语从句；as if好像；as long as只要，引导条件状语从句；as soon as一……就。根据“Your dream can come true ... you put your heart into it.”可知，句子前后是条件关系，表示“只要”，用as long as引导条件状语从句。故选C。
16. C
【解析】句意：因为亚历克斯太重了，所以他妈妈不想让他吃太多。
考查连词辨析。Although虽然；but但是；Because因为；so所以。根据“Alex is too heavy”和“his mother doesn’t want him to eat too much.”可知，前后句为因果关系，前因后果，应用because引导原因状语从句，because不与so连用。故选C。
17. B
【解析】句意：——你父亲在哪里？——在卧室。他太累了，很早就上床睡觉了。
考查结果状语从句。too...to...太……而不能……；so...that...如此……以致于……；such...that...如此……以致于……。根据“He is...tired...he goes to bed early.”可知，表示“太累了，以至于很早就上床睡觉了”，tired是形容词，故用so...that...引导结果状语从句。故选B。
18. B
【解析】句意：直到年轻人告诉她原因，女孩才接受了礼物。
考查连词辨析。unless除非；until直到；when当；although虽然。根据“The girl didn’t accept the gift...the young man told her the reason”可知在直到告诉她原因，她才接受了礼物，用结构“not...until”，意为“直到……才”。故选B。
19. B
【解析】句意：——不要担心期末考试。如果你努力学习，你会通过的。——谢谢！
考查时态辨析。根据“if you work hard”可知，该句是if引导的条件状语从句，主句用一般将来时，从句用一般现在时表将来。一般将来时的结构为“will/shall+动词原形”，根据结构，故选B。
20. C
【解析】句意：虽然我的爷爷老了，但是他看起来非常强壮和健康。
考查连词辨析。Because因为，引导原因状语从句；If如果，引导条件状语从句；Although虽然，引导让步状语从句；When当……时，引导时间状语从句。根据“my grandpa is old”和“he looks very strong and healthy.”可知，两者之间是让步关系，因此用although引导让步状语从句。故选C。
21. B
【解析】句意：虽然他很累，但他仍继续在办公室工作。
考查连词辨析。Since自从；Although虽然；As soon as一……就；Because因为。“he was very tired”表示让步，用Although引导让步状语从句。故选B。
22. A
【解析】句意：如果我去公园，我今天就不会完成作业。我妈妈会生气的。
考查if引导条件状语从句。根据英语语法，if引导的条件状语从句遵循“主将从现”原则，主句的时态是一般将来时，从句要用一般现在时。故第一空应用一般现在时，第二空应用一般将来时，且根据句意可知，如果去公园，就不会完成作业了，故选A。
23. A
【解析】句意：如果你仔细照管这件外套，它可以让你在许多冬天都保持温暖。
考查连词辨析。If如果；Unless如果不，除非；Before在……之前；So因此，所以。前一句表条件，故用if引导条件状语从句。故选A。
24. A
【解析】句意：《歌手》很有趣，很多人都喜欢看。
考查结果状语从句。分析句子可知是主从复合句。应用连词。so...that如此……以至于，so修饰形容词或副词；such...that如此……以至于，such修饰名词。interesting是形容词，应用so...that引导结果状语从句，故选A。
25. A
【解析】句意：——你周末会去哪里？——只要天气好，我们就去远足。
考查连词辨析。as long as只要；and和；but但是；or或者。“the weather is fine”是“We will go hiking”的条件，用as long as引导条件状语从句，故选A。
26. D
【解析】句意：——你为什么喜欢科学？——因为我认为它很有趣。
考查连词辨析。and和；so所以；but但是；because因为。回答why引导的特殊疑问句要使用连词because。故选D。
27. C
【解析】句意：花会凋谢除非你每天给它们浇水。
考查连词。when当……时；but但是；unless除非；until直到。根据“you water them every day”，可知是条件状语从句，表达“除非”，用连词“unless”。故选C。
28. B
【解析】句意：——你能和我一起去看足球比赛么？——不，除非你有两张票。
考查连词。if如果；unless除非；because因为；so因此。根据“you have two tickets”，可知句子表达除非有两张票不然不能和他一起去看足球比赛，用连词“unless”。故选B。
29. A
【解析】句意：——明天你能帮我打扫一下吗？——如果我有空，我就去。
考查时态。根据“If I...free, I will do.”可知，此处是if引导的条件状语从句，需满足“主将从现”原则，故选A。
30. A
【解析】句意：丽莎通常在网上买东西，这样她可以省钱省时。
考查目的状语从句。so that为了，以便；such that到这样的程度；as soon as一……就；so as to为了，后接单词或短语；空后句是前句的目的，此处应用so that引导目的状语从句，故选A。
31. A
【解析】句意：小男孩一直到她妈妈回来才停止了哭。
考查连词。although虽然；if 如果；because因为；until直到。not…until“直到……才”，是一个固定句型，故选A。
32. A
【解析】句意：——自从共享自行车出现以来，我上班变得容易多了。——但它们也造成了很多问题。
考查从属连词辨析。since自从；before在……之前；unless除非；if如果。分析句子可知，主句是现在完成时，从句是一般过去时，此空应填since引导时间状语从句。故选A。
33. D
【解析】句意：——你觉得那本书怎么样？——恐怕这对我来说太难理解了。
考查too...to结构。so...tha“如此……以至于……”引导结果状语从句。too...to“太……而不能……”。分析“it’s ...difficult for me...it.”结合选项可知，此处是一个简单句，不能用so...that引导复合句，排除AB选项。C选项意思错误，排除，故选D。
34. A
【解析】句意：我努力练习篮球，这样我就能成为一名像姚明一样的篮球运动员。
考查连词辨析。so that以便，所以，引导目的状语从句；so因此；that那；because因为。“努力练习篮球”是为了成为像姚明一样的运动员，所以用so that引导目的状语从句。故选A。
35. C
【解析】句意：露西每天都努力学习以便能取得好成绩。
考查从属连词辨析。in order to为了；such that如此程度；so that以便，为了；so as to以便，为了。根据“Lucy studies hard every day...she can get good marks”可知，“她努力学习”的目的是“为了取得好成绩”，in order to do sth./so as to do sth.“为了做某事”，“she can get good marks”是一个完整的句子，所以此处使用so that引导目的状语从句。故选C。
36. B
【解析】句意：尽管她相信这一点，但她不会立即采取行动。
考查让步状语从句。although引导让步状语从句，主句部分和从句部分是有转折关系，但是不能和but连用，故选B。
37. C
【解析】句意：他们不加薪就不会回去工作。
考查动词时态。根据“until ”可知此处是until引导的时间状语从句，遵循主将从现原则，主句用一般将来时will+动词原形。not…until“直到……才”，故选C。
38. B
【解析】句意：请大声点，这样大家都能听得清楚。
考查连词辨析。in order to为了，后跟动词原形；in order that= so that 以便，后跟句子；enough to足够……去做；although尽管。根据“Please speak louder...everybody can hear you clearly.”可知，说大声点是为了让大家听到，用so that引导目的状语从句。故选B。
39. C
【解析】句意：请大声点，以便我们能清楚地听到你的声音。
考查目的状语从句。in order井然有序；in order to为了，后加动词原形；so that以便于，后加从句；as a result of由于……的结果。“Please speak louder”的目的是“we can hear you clearly”，用so that引导目的状语从句。故选C。
40. A
【解析】句意：尽管交通拥挤，我们还是准时到达了火车站。
考查从属连词辨析。Although虽然；Unless除非；Since既然；However然而。根据“we got to the railway station on time.”可知，此处是让步关系，所以应该使用although引导让步状语从句。故选A。
二．
1. no matter what; plays 2.so; that; regarded; as 3. as long as 4. as long as 5. so much that 6. Though she was busy 7. when he grows up 8.Whether it’s 9. If everyone makes a contribution 10. because he was ill
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