内容正文:
专题10 状语从句
(南通中考真题+中考模拟)
1.(2023·江苏南通·中考真题)________ you can’t work out the problem, perhaps you need to ask your classmates for help.
A.Unless B.Though C.Since D.Whether
2.(2022·江苏南通·中考真题)Mary is good at writing. I am sure she’ll get a good place ________ she takes part in the writing competition.
A.before B.if C.though D.unless
3.(2020·江苏南通·中考真题)Max got lost and was trapped in the forest for 10 hours _______ a farmer nearby found him.
A.if B.since C.until D.after
4.(2019·江苏南通·中考真题)I still keep taking exercise every day I am busy with so many subjects.
A.until B.unless C.because D.though
5.(2018·江苏南通·中考真题)I know the city well that I don’t need to use a map to get around.
A.quite B.very C.so D.such
6.(2017·江苏南通·中考真题)It is known to all that the day becomes shorter and shorter winter comes.
A.before B.when C.until D.since
7.(2015·江苏南通·中考真题)Pandas are facing danger!The situation won’t change humans stop killing.
A.unless B.though C.if D.after
8.(2016·江苏南通·中考真题)(2016●南通市)Jack is still working to high standards he has made great achievements.
A.until B.if C.though D.because
9.(2024·江苏南通·二模)—It’s said that Beijing Duck is very delicious.
—Well, ________ we are here, why not have a try?
A.though B.unless C.since D.before
10.(2024·江苏南通·二模)—How long will the meeting last?
—Until an agreement ________.
A.reaches B.is reached C.will reach D.will be reached
11.(2024·江苏南通·一模)________ there are so many things around us that go against our will, we can’t give them up because following the dream is important.
A.Though B.If C.Since D.Unless
12.(23-24八年级下·江苏南京·阶段练习)It’s about two years ________ the young man became a soldier.
A.when B.before C.since D.as
13.(2024·上海宝山·一模)Your education will be incomplete ________ you have practical life skills.
A.if B.although C.because D.unless
14.(23-24九年级上·上海浦东新·期末)Sorry sir, your order ________ if you fail to pay for it in 15 minutes.
A.canceled B.is canceled C.was canceled D.will be canceled
15.(2023·江苏南通·二模)—I refused to lend him some money ________ he promised to pay me back the following week.
—It’s wise of you to do so, as he used to tell lies.
A.though B.if C.so D.but
16.(2023·江苏南通·一模)________ it has a long history, time hasn’t stopped the Great Wall from trying to attract young people at home and abroad every year.
A.Unless B.If C.Although D.While
17.(2023·江苏南通·一模)Trips to the old towns are ________ valuable experiences that we can not only enjoy the beautiful sights but also learn more about the history.
A.too B.so C.quite D.such
18.(2023·安徽·一模)—It rained heavily this morning. Did you get wet on your way to school?
—No. ______ I went outdoors, the rain had already stopped.
A.As possible as B.As soon as C.As well as D.As long as
19.(2022·江苏南通·一模)We will be out of date ________ we keep on studying all the time.
A.if B.although C.unless D.since
20.(2022·江苏南通·一模)_________ most people get news online, printed newspapers won’t disappear in a hurry.
A.Because B.Since C.Though D.Unless
21.(2022·江苏南通·二模)—I want to go to the concert later on. Would you like to join me?
—With pleasure. ________ I finish the work, I’ll call you.
A.Unless B.Though C.After D.Since
22.(2022·江苏南通·模拟预测)Daniel will succeed in working out the Maths problem ________ he gives up.
A.until B.unless C.because D.though
23.(2022·江苏无锡·二模)— Can Jimmy help us with the problem?
— Yes, his promise is ________ gold. Trust him!
A.as long as B.as good as C.as well as D.as much as
24.(2022·江苏南通·二模)Some viruses can spread through mucus droplets (飞沫). The droplets can fly one or two meters in the air ________ they fall to the ground.
A.before B.after C.when D.while
25.(2022·江苏南通·模拟预测)— Did you watch the football game last night?
— Yes, of course. I never miss it ________ I am too busy with my homework.
A.if B.until C.unless D.since
26.(2022·江苏南通·一模)—Mum, when can I go to play basketball?
—________ your homework ________.
A.Until; will be finished B.Until; has finished
C.Not until; will finish D.Not until; is finished
27.(2022·江苏南通·一模)Many people have fallen in love with curling (冰壶) ________ they showed little interest at first.
A.though B.since C.unless D.because
28.(2021·江苏南通·二模)Mr Wu asks us to hand in our reports when they _________ tomorrow.
A.finish B.will finish C.are finished D.will be finished
29.(2021·江苏苏州·二模)________ people have to be at least 18 to get the vaccine(疫苗), I have to wait several weeks for my next birthday.
A.Since B.Before C.Until D.When
30.(2021·江苏南通·一模)—The plastic pollution is harming the ocean.
—It will be worse ________ stronger laws are made.
A.since B.after C.until D.unless
31.(2021·江苏南通·一模)—Could we go and watch the basketball final at Sunshine Sports Centre?
—No, ________ you have the tickets.
A.if B.unless C.so D.since
32.(2021·江苏南通·二模)The pollution in the sea will be terrible ________ the Japanese government gives up their plan.
A.until B.unless C.because D.if
33.(2021·江苏南京·中考真题)You need to practise speaking every day ________ you hope to improve your spoken English.
A.if B.although C.unless D.until
34.(2021·江苏南通·一模)—When shall we go to watch the basketball match in the sports center?
—________the work ________ tomorrow.
A.Not until; will be finished B.Not until; is finished C.Until; will be finished D.Until; is finished
35.(2021·江苏南通·一模)Protecting wildlife is without doubt an important part, ________ each animal on Earth has a role to play in the ecosystem.
A.since B.though C.unless D.if
36.(2021·江苏南通·一模)—It is a pity that the disease is still terrible at present.
—Yes. It will be worse ________ we take further action to do something for it.
A.unless B.since C.if D.when
37.(23-24九年级上·江苏南通·期中)Last night, I was reading my favourite English novel ________ the lights suddenly went out.
A.when B.since C.while D.after
38.(23-24九年级下·江苏南通·阶段练习)—Is there anything we should pay special attention to during the coming exam?
—Of course. Students should remain in their seats until all the papers ________.
A.are collected B.will be collected C.collect D.will collect
39.(23-24九年级下·江苏南通·阶段练习)There’s no doubt that poisonous capsules (胶囊) will appear again unless the producers ________ strictly.
A.have punished B.punish C.are punished D.are punishing
40.(23-24九年级下·江苏南通·阶段练习)—I can hardly believe my eyes! Are you really Mary?
—Yes. It’s a long time ________ we last met.
A.since B.before C.until D.after
41.(23-24九年级下·江苏南通·阶段练习)Some people like new product _________ much that they want it to be on China’s market as soon as possible.
A.very B.quite C.too D.so
42.(23-24九年级上·江苏南通·期末)—The sea animals are in danger because more plastic pollution is harming the ocean.
—It will be worse ________new laws are made.
A.unless B.after C.until D.since
43.(23-24九年级上·江苏南通·期末)—How was your trip to Mount Huang?
—Perfect. It was ________ fine weather ________ we enjoyed the amazing view, especially the cloud sea.
A.enough; to B.too; to C.such; that D.so; that
44.(22-23九年级上·江苏南通·期末)I will do what I can about these problems ________ all of them are solved out.
A.whenever B.as soon as C.after D.until
45.(23-24九年级上·江苏南通·期末)It’s impossible for him to pass the PE exam easily ________ he keeps exercising every day.
A.but B.since C.if D.unless
46.(22-23九年级下·江苏南通·开学考试)— Excuse me, when can we play badminton at the court?
— ________ next week.
A.Not until it’s repaired B.Until it repairs
C.Until it will repair D.Not until it will be repaired
47.(22-23九年级下·江苏南通·开学考试)________ you can sleep well, you will lose the ability to focus, plan and stay energetic after one or two nights.
A.Because B.Unless C.If D.When
48.(22-23九年级上·江苏南通·期末)They wanted to start before 6 a.m. _______they could finish the work in a day.
A.as a result B.so that C.in order to D.as well as
49.(22-23九年级上·江苏南通·期末)No one knew anything about the accident _______ it _______on CCTV.
A.till;covered B.when;was covering
C.until;was covered D.when;covered
50.(22-23九年级上·江苏南通·期末)Keep trying, and you’ll surely realize your dream ________ you give up halfway.
A.unless B.if C.when D.until
试卷第1页,共3页
试卷第1页,共3页
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参考答案:
题号
1
2
3
4
5
6
7
8
9
10
答案
C
B
C
D
C
B
A
C
C
B
题号
11
12
13
14
15
16
17
18
19
20
答案
A
C
D
D
A
C
D
B
C
C
题号
21
22
23
24
25
26
27
28
29
30
答案
C
B
B
A
C
D
A
C
A
D
题号
31
32
33
34
35
36
37
38
39
40
答案
B
B
A
B
A
A
A
A
C
A
题号
41
42
43
44
45
46
47
48
49
50
答案
D
A
C
D
D
A
B
B
C
A
1.C
【详解】句意:既然你解不出这道题,也许你需要向你的同学求助。
考查连词辨析。Unless除非;Though尽管;Since既然,由于;Whether是否。“you can’t work out the problem”是向同学求助的原因,用Since引导原因状语从句。故选C。
2.B
【详解】句意:玛丽擅长写作。如果她参加写作比赛,我相信她会获得好成绩。
考查连词辨析。before在……以前;if如果;though尽管;unless除非。根据“I am sure she’ll get a good place...she takes part in the writing competition.”可知后句是前句的条件,应用if引导条件状语从句,故选B。
3.C
【详解】句意:马克斯迷路了,在森林里被困了10个小时,直到附近的一个农民发现了他。
考查连词辨析。if如果;since自……以来;until直到……;after在……之后。根据句中“a farmer nearby found him”可知,此处使用until,表示“马克斯在森林里被困了10个小时,直到附近的一个农民发现了他”。故选C。
4.D
【详解】句意:尽管我忙于许多科目,但我仍然每天都在锻炼。A. until直到;B. unless 除非;C. because因为;D. though尽管。根据下文I am busy with so many subjects.可知这里是though引导的让步状语从句。根据题意,故选D。
5.C
【详解】句意:我了解这座城市如此的好,以至于我不需要使用地图到处走。quite相当地,very非常,so如此,such这样。so+形容词/副词+that+从句=such+a/an+形容词+单数名词+that+从句,表示“如此……以至于……”,此处修饰副词well,故用so…that…,故选C。
6.B
【详解】句意:众所周知,当冬天到来时,白天变得越来越短。A. before“在……之前”;B. when“当……时候”;C. until“直到……为止”;D. since“既然;由于”。结合句意,故选B。
7.A
【详解】试题分析:句意:熊猫面临危险。如果人们不停止杀害熊猫,形势不会改变。此题考查连词,A如果不;B尽管;C如果;D在之后。根据句意,应选A。
考点:考查连词。
8.C
【详解】试题分析:句意:杰克仍然是的高标准的来工作,虽然他取得了巨大的成就。A.until直到……为止; B.if如果;C.though尽管;D.Because因为。结合句意可知,此处应选择表示让步关系的从属连词。故答案为C。
考点:考查连词的用法。
9.C
【详解】句意:——据说北京烤鸭很好吃。——好吧,既然我们在这里,为什么不试一试呢?
考查连词辨析。though尽管;unless除非;since既然;before“在……之前”。根据“we are here, why not have a try”可知,既然在北京,就该去试试北京烤鸭,此处应用since引导原因状语从句。故选C。
10.B
【详解】句意:——会议要持续多长时间?——直到达成协议为止。
考查一般现在时的被动语态。until引导时间状语时,从句用一般现在时;此处主语与reach是被动关系,因此从句用一般现在时的被动语态,故选B。
11.A
【详解】句意:虽然我们周围有很多事情违背我们的意愿,但我们不能放弃,因为追随梦想很重要。
考查从属连词词义辨析。Though尽管;If如果;Since自从;Unless除非。分析可知,“there are so many things around us that go against our will”与“we can’t give them up”存在转折关系,所以此处应用though引导让步状语从句。故选A。
12.C
【详解】句意:这个年轻人当兵大约两年了。
考查连词辨析。when当……时;before在……以前;since自从; as因为。it is/has been+一段时间+since+一般过去时“做某事已经……”,是固定句型,故选C。
13.D
【详解】句意:除非你有实际的生活技能,否则你的教育是不完整的。
考查连词词义辨析。if如果,引导条件状语从句;although虽然,尽管,引导让步状语从句;because因为,引导原因状语从句;unless除非,如果不,引导条件状语从句。根据句意可知,“受教育完整”的条件是“有实际的生活技能”,if和unless引导条件状语从句。当某个条件为真时,后面的动作或结果会发生,用if引导条件状语从句。当某个条件不成立时,后面的动作或结果才会发生,用unless引导条件状语从句。unless在意义上相当于“if...not...”,选项D符合语境。故选D。
14.D
【详解】句意:对不起,先生,如果您在15分钟内不付款,您的订单将被取消。
考查条件状语从句和被动语态。根据“if you fail to…”可知,此句属于含if引导的条件状语从句的复合句,遵循主将从现原则,从句谓语“fail to pay for…”为一般现在时,则主句应用一般将来时;主句主语your order与动词cancel逻辑上存在动宾关系,应用被动语态,所以此处应用一般将来时的被动语态,其结构是will be done。故选D。
15.A
【详解】句意:——我拒绝借钱给他,尽管他答应下个星期还我。——你这样做是明智的,因为他过去常说谎。
考查连词辨析。though尽管;if如果;so因此;but但是。根据“I refused to lend him some money”和“he promised to pay me back the following week.”可知,尽管他许诺下周就把钱还给我,但我还是拒绝借给他钱;前后句是让步关系,应用though引导让步状语从句。故选A。
16.C
【详解】句意:尽管历史悠久,但时间并没有阻止长城每年吸引国内外年轻人的脚步。
考查连词辨析。Unless除非,引导条件状语从句;If如果,引导条件状语从句;Although尽管;引导让步状语从句;While当……的时候,引导时间状语从句。分析语境可知,前半句是一个让步状语从句,空处表示“尽管”。故选C。
17.D
【详解】句意:老城区之旅是如此宝贵的经历,以至于我们不仅可以欣赏美丽的景色,还可以了解更多的历史。
考查结果状语从句。too也,太;so如此;quite十分;such如此。名词短语valuable experiences表示“宝贵的经历”,应用形容词such修饰,短语such+形容词+可数名词复数+that从句“表示”如此……,以至于……“。故选D。
18.B
【详解】句意:——今天早上下了大雨,你在上学的路上淋湿了吗?——没有,我一到户外,雨就已经停了。
考查副词短语。As possible as“尽可能”;As soon as“一……就……”;As well as“和……一样好、也”;As long as“只要”。根据“...I went outdoors, the rain had already stopped.”可知,我一到户外,雨就已经停了。故选A。
19.C
【详解】句意:如果我们不一直学习,我们就会过时。
考查状语从句。if如果;although虽然;unless除非;since自从。根据“We will be out of date …we keep on studying all the time.”可知,此处空后为条件,且为否定条件,使用unless,故选C。
20.C
【详解】句意:虽然大多数人在网上获得新闻,但纸质报纸不会很快消失。
考查连词辨析。because因为;since既然;though虽然;unless除非。“most people get news online”和“printed newspapers won’t disappear in a hurry”之间构成让步关系,用though引导让步状语从句。故选C。
21.C
【详解】句意:——我想晚些时候去听音乐会。你愿意去吗? ——我很乐意。我完成工作后,我会给你打电话。
考查连词辨析。Unless除非;Though虽然;After在……之后;Since自从。根据“I finish the work, I’ll call you.”可知,前半句是一个时间状语从句,空处表示“在……之后”。故选C。
22.B
【详解】句意:丹尼尔将成功地解出这道数学题,除非他放弃。
考查从属连词辨析。until直到;unless除非;because因为;though虽然。根据“Daniel will succeed in working out the Maths problem...he gives up.”可知,表示前提条件,应该是“除非”,用unless引导条件状语从句。故选B。
23.B
【详解】句意:——吉米能帮我们解决这个问题吗?——是的,他的承诺非常可靠。相信他!
考查as … as同级比较。as long as只要;as good as与……一样好;as well as也;as much as多达。根据下文“Trust him!”提示,此处指的是他的承诺非常可靠,as good as gold意为“十分可靠”,符合句意,故选B。
24.A
【详解】句意:有些病毒可以通过粘液飞沫传播。飞沫在落到地面之前可以在空中飞行一到两米。
考查连词辨析。before在……之前;after在……之后;when当……的时候;while与……同时。根据“The droplets can fly one or two meters in the air…they fall to the ground.”可知,飞沫在落到地面之前可以在空中飞行。故选A。
25.C
【详解】句意:——你昨天看足球联赛了吗?——是的,当然。我从不错过它,除非我忙于我的家庭作业。
考查连词。unless除非;until直到;if如果;since自从。根据“I never miss it”和“I am too busy with my homework.”的逻辑结构,可知应该是除非忙于家庭作业,否则不会错过,应用unless引导条件状语从句,故选C。
26.D
【详解】句意:——妈妈,我什么时候可以去打篮球?——直到你完成你的家庭作业。
考查状语从句和动词的时态和语态。根据“when can I go to play basketball”可知表达“直到完成作业才能去”,用“not…until”引导时间状语从句。从句用一般现在时表示将来。根据“homework”可知从句主语是单数概念,谓语表达被动含义“被完成”,动词用“is finished”。故选D。
27.A
【详解】句意:许多人已经爱上了冰壶,尽管他们一开始并不感兴趣。
考查连词辨析。though尽管;since自从;unless除非;because因为。“they showed little interest at first”可知此处表示让步,尽管一开始不感兴趣还是爱上了,用though引导让步状语从句。故选A。
28.C
【详解】句意:吴老师要求我们明天完成报告后交上来。
考查一般现在时的被动语态。本句是when引导的时间状语从句,除表示意愿之外,一般用一般现在时代替一般将来时;又因从句主语“they”和谓语动词“finish”是动宾关系,因此这里是一般现在时的被动语态,结构是“be done”,主语是“they”,因此be动词是are。故选C。
29.A
【详解】句意:由于人们必须年满18岁才能接种疫苗,我得等几个星期才能等到下一个生日。
考查连词辨析。since既然,由于;before在……之前;until直到;when当……时。“ people have to be at least 18 to get the vaccine”与“I have to wait several weeks for my next birthday”是因果关系,用since引导原因状语从句,故选A。
30.D
【详解】句意:——塑料污染正在损害海洋。——除非制定更强有力的法律,否则情况会更糟。
考查连词辨析。since自从;after在……之后;until直到;unless除非,如果不。“It will be worse …stronger laws are made.”如果不制定法律,那肯定会更糟糕。“if”除非,如果不,符合语境,故选D。
31.B
【详解】句意:——我们能去阳光体育中心看篮球决赛吗?——不,除非你有票。
考查连词辨析。if如果;unless除非;so因此;since自从。根据“you have the tickets”可知,除非邮票,否则不能去,故选B。
32.B
【详解】句意:除非日本政府放弃他们的计划,否则海洋的污染将是可怕的。
考查从属连词辨析。until直到;unless除非;because因为;if如果。根据“...the Japanese government gives up their plan.”可知除非日本政府放弃计划,不然海里污染会严重,用unless引导的条件状语从句,表示“除非”。故选B。
33.A
【详解】句意:如果你想提高你的英语口语,你需要每天练习口语。
考查连词辨析。if如果;although尽管;unless除非;until直到。根据“You need to practise speaking every day”以及“you hope to improve your spoken English”可知,如果想提高英语口语,就需要每天练习口语,此处为if引导的条件状语从句。故选A。
34.B
【详解】句意:——我们应该什么时候去体育中心看篮球比赛?——明天工作完成我们就去。
考查until结构及时态。本句为省略句,全句是We won't go to watch the match until the work is finished tomorrow. not……until引导的时间状语从句,主将从现,从句用一般现在时,排除A/C选项;只有not……until结构才表示“直到……才”,单独的until表示“直到”。故选B。
35.A
【详解】句意:保护野生动物无疑是一个重要的部分,因为地球上的每一种动物都在生态系统中扮演着重要的角色。
考查连词辨析。since因为;though尽管;unless除非;if如果。“Protecting wildlife is without doubt an important part”与“each animal on Earth has a role to play in the ecosystem”是因果关系,后是因,用since引导原因状语从句,故选A。
36.A
【详解】句意:——遗憾的是,这种疾病目前仍然很可怕。——是的。如果我们不采取进一步的行动来做些什么,情况会更糟。
考查连词。unless如果不,除非,引导条件状语从句;since自从……以来,引导时间状语从句;if如果,引导条件状语从句;when当……时候,引导时间状语从句;根据“It will be worse... we take further action to do something for it.”可知,从句“如果我们不采取进一步的行动来做些什么”是主句“情况会更糟”的条件。因此使用unless引导条件状语从句。故选A。
37.A
【详解】句意:昨天晚上,我正在读我最喜欢的英语小说,突然灯熄灭了。
考查连词辨析。when当……的时候;since自从;while当……的时候;after在……后面。根据“the lights suddenly went out”可知,灯熄灭的时候我正在看书,此处表达的意思是“当……的时候”,when和while都可以表示“当……的时候”;“灯熄灭”这个动作是短暂性的,而while引导的从句中谓语动词必须是延续性的,所以只能填when。故选A。
38.A
【详解】句意:——在即将到来的期末考试中,我们有什么需要特别注意的吗?——当然。学生们应该坐在座位上,直到所有的试卷都收齐为止。
考查被动语态。句子是until引导的时间状语从句,遵循主情从现的原则,从句使用一般现在时,且主语the papers和collect是被动关系,因此使用一般现在时的被动语态are collected。故选A。
39.C
【详解】句意:毫无疑问,有毒胶囊还会再次出现,除非对生产商进行严格的处罚。
考查被动语态。根据“unless the producers”可知,unless引导的从句用一般现在时;从句主语与动词punish是被动关系,因此从句是一般现在时的被动语态,故选C。
40.A
【详解】句意:——我简直不敢相信自己的眼睛!你真的是玛丽吗?——是的。自从我们上次见面以来,已经有很长时间了。
考查连词辨析。since自从;before在……之前;until直到;after在……之后。根据“It’s a long time ... we last met.”可知,是指自从我们上次见面以来有很长时间了,用since引导时间状语从句。故选A。
41.D
【详解】句意:有些人非常喜欢新产品以至于他们希望它能尽快进入中国市场。
考查副词辨析。very非常;quite非常;too太;so如此。根据“that they want it to be on China’s market as soon as possible”可知,此句是前一句的结果,so...that...引导结果状语从句,故选D。
42.A
【详解】句意:——海洋动物处于危险之中,因为越来越多的塑料污染正在损害海洋。——如果不制定法律,那将会更糟。
考查连词辨析。unless如果不,除非;after在……之后;until直到;since自从。根据“It will be worse...new laws are made.”可知,此处表示“如果不制定法律”,故选A。
43.C
【详解】句意:——你的黄山之旅怎么样?——完美。天气如此之好,我们欣赏到了令人惊叹的景色,尤其是云海。
考查结果状语从句。enough … to足够……;too … to太……而不能;such … that如此……以至于;so … that如此……以至于。根据“we enjoyed the amazing view, especially the cloud sea.”可知,欣赏到了美景是结果,第二空后是句子,用such/so … that引导结果状语从句。so后面接形容词,such后面接名词,fine weather“好天气”为名词短语。故选C。
44.D
【详解】句意:我会尽我所能解决这些问题,直到所有问题都得到解决。
考查连词辨析。whenever无论何时;as soon as一……就……;after之后;until直到。根据“all of them are solved out.”可知,会尽力解决问题,直到所以问题都被解决,故选D。
45.D
【详解】句意:除非他继续每天锻炼,否则他不可能轻易通过体育考试。
考查连词词义辨析。but但是;since自从;if是否,如果;unless除非。根据句意可知,他能轻易通过体育考试的条件是他继续每天锻炼。选项D符合题意。unless引导条件状语从句。故选D。
46.A
【详解】句意:——打扰了,我们何时在球场上打网球?——直到下周它修好为止。
考查时间状语从句。not until直到……才,一般用于主句的谓语动词是终止性动词时;until到……为止,一般用于主句的谓语动词是延续性动词时。repair为终止性动词,句子应用否定句,即not until引导时间状语从句;从句时态应为一般现在时,it与repair之间为被动关系,句子使用一般现在时的被动语态。故选A。
47.B
【详解】句意:除非你睡得好,否则一两个晚上后你就会失去专注、计划和保持精力充沛的能力。
考查连词辨析。because因为;unless除非;if如果;when当……的时候。“you can sleep well”是“you will lose the ability to focus, plan and stay energetic after one or two nights.”的否定条件,应该用unless引导条件状语从句。故选B。
48.B
【详解】句意:他们想在早上6点之前开始,以便在一天内完成这项工作。
考查状语从句。as a result因此;so that以便,后加从句;in order to为了,后加动词原形;as well as以及。根据“They wanted to start before 6 a.m ... they could finish the work in a day.”可知,早上6点之前开始是为在一天内完成这项工作,应用so that引导目的状语从句,故选B。
49.C
【详解】句意:直到CCTV报道了那次事故,我们才知道。
考查连词辨析和一般过去时的被动语态。when当;until直到。第二处主语“it”是动作cover的承受者,应使用被动语态,排除ABD。根据“No one knew anything about the accident...”可知,此处构成“否定+until”结构,意为“直到……才”,故选C。
50.A
【详解】句意:继续努力,除非你半途而废,否则你一定会实现你的梦想。
考查状语从句连接词。unless除非,引导条件状语从句;if如果,引导条件状语从句;when当……时候,引导时间状语从句;until直到……为止,引导时间状语从句。根据空格前“you’ll surely realize your dream”,意为“你一定会实现你的梦想”和空格后“you give up halfway”,意为“你半途而废”可知,unless表示“除非”的意思符合。故选A。
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