四级英语完形填空练习题及答案解
在日常学习和工作生活中，我们会经常接触并使用阅读答案，阅读答案有助于我们领会解题思路，掌握答题技巧。那么你知道什么样的阅读答案才能有效帮助到我们吗？下面是小编帮大家整理的四级英语完形填空练习题及答案解析，希望能够帮助到大家。
四级英语完形填空练习题及答案解1
Who won the World Cup 1994 football game? What happened at the United Nations? How did the critics like the new play? 1 an event takes place; newspapers are on the streets 2 the details. Wherever anything happens in the world, reports are on the spot to 3 the news.
Newspapers have one basic 4 , to get the news as quickly as possible from its source, from those who make it to those who want to 5 it. Radio, telegraph, television, and 6 inventions brought competition for newspapers. So did the development of magazines and other means of communication. 7 , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the 8 and thus the efficiency of their own operations. Today more newspapers are 9 and read than ever before. Competition also led newspapers to branch out to many other fields. Besides keeping readers 10 of the latest news, today's newspapers 11 and influence readers about politics and other important and serious matters. Newspapers influence readers' economic choices 12 advertising. Most newspapers depend on advertising for their very 13 .Newspapers are sold at a price that 14 even a small fraction of the cost of production. The main 15 of income for most newspapers is commercial advertising. The 16 in selling advertising depends on a newspaper's value to advertisers. This 17 in terms of circulation. How many people read the newspaper? Circulation depends 18 on the work of the circulation department and on the services or entertainment 19 in a newspaper's pages. But for the most part, circulation depends on a newspaper's value to readers as a source of information 20 the community, city, country, state, nation, and world—and even outer space.
1.A.Just when B.While C.Soon after D.Before
2.A.to give B.giving C.given D.being given
3.A.gather B.spread C.carry D.bring
4.A.reason B.cause C.problem D.purpose
5.A.make B.publish C.know D.write
6.A.another B.other C.one another D.the other
7.A.However B.And C.Therefore D.So
8.A.value B.ratio C.rate D.speed
9.A.spread B.passed C.printed D.completed
10.A.inform B.be informed C.to be informed D.informed
11.A.entertain B.encourage C.educate D.edit
12.A.on B.through C.with D.of
13.A.forms B.existence C.contents D.purpose
14.A.tries to cover B.manages to cover C.fails to cover D.succeeds in
15.A.source B.origin C.course D.finance
16.A.way B.means C.chance D.success
17.A.measures B.measured C.Is measured D.was measured
18.A.somewhat B.little C.much D.something
19.A.offering B.offered C.which offered D.to be offered
20.A.by B.with C.at D.about
第三篇答案+解说：
1.【答案】A
【解析】just在此为副词，意为“刚刚”，做状语。此句意为“一个事件刚刚发生，街上就有报纸报道详情了。说明报纸对新闻的反应之快。
2.【答案】A
【解析】to give和giving都合乎语法，但giving强调的是正在发生的动作，而此处重点表达的是“反应快”，不是正在做什么。
3.【答案】A
【解析】消息，信息要靠收集。
4.【答案】D
【解析】后面的不定式短语表示目的。
5.【答案】C
【解析】提供信息的目的是为了让他人知道，所以选C。
6.【答案】B
【解析】other意为“其他的”。此句意为：无线电，电报，电视，及其它发明，成为报纸的竞争对手。
7.【答案】A
【解析】根据句中的merely及其考(试大后所述内容，应选however，表转折。
8.【答案】D
【解析】使用更新，更快的通讯工具，目的是提高速度。
9.【答案】C
【解析】报纸是印出来的，先印后看(读)。
10.【答案】D
【解析】keep sb.+过去分词是一种复合结构，sb.与过去分词为被动关系，意为保持这种关系的继续。此句的意思是：报纸不断地为读者提供新闻信息。
11.【答案】C
【解析】关于politics之类的严肃话题,只能选educate。
12.【答案】B
【解析】此句意为：报纸通过广告影响读者在经济生活中的选择。
13.【答案】B
【解析】大多数报纸依靠广告收入来维持生存，此现象人人皆知。
14.【答案】C
【解析】报纸的售价之低，不足以抵付成本的一小部分。符合上下文关于广告收入的说法。
15.【答案】A
【解析】收入来源应该用source。因为source指河流，泉水的发源地;常指抽象事物的根源或来源以及资料，信息的出处或来源。origin起源，起因。指事物后来发生,发展变化的最初起点,或指人的出身和血统。
16.【答案】D
【解析】succeed in为固定短语。此句意为：广告业务的成功，取决于报纸在客户(要打广告的人)心中的价值。
17.【答案】C
【解析】根据上下文，此处应该用一般现在时的被动语态，此句意为：报纸考(试大在客户心中的价值，是靠发行量衡量的。
18.【答案】C
【解析】该句意为：发行量的大小，很大程度上取决于发行部门的工作及报纸所提供的服务功能和娱乐功能。
19.【答案】B
【解析】offered作services和entertainment的定语。
20.【答案】D
【解析】information后面接介词about，表示“关于”。
四级英语完形填空练习题及答案解2
I have always found country life most __1_.The city ,a place _2__ business is only to _3__;it is not an an ideal place for permanent residence.People may say that the city can provide you with the best __4_ life can offer.
Your friends are always _5__ for an informal chat or an evening’s entertainment.The _6__ exhinitions,films or plays are always within easy reach.Shopping ,too,is always a pleasure.But what _7__ the hustle and bustle of city like? The city dweller never has a moment __8_peace;he is always__9_.And what about the noise and pollution of the city? Day and night the city is in uproar with its unceasing traffic.The air is polluted _10__ prisonous gases emitted by the smokestacks of factories.The water supply is tained with impurities that are harmful to the human body.The city is indeed not a place to live in.
Country life is in many respects superior __11_ city life.For one thing , the people there are friendly.People are acquainted with one __12_.You can never _13__ receive a friendly nod or a kind word from anyone you _14__ meet.In the city people who live in the same _15__ are often strangers to one another.The air in the country is fresh and pure.Air pollution is a thing _16__ of there.You live a healthy life in the open air.Life goes on in a _17__ way and you don’t have to hurry to catch _18__ bus or travel in a crowed bus with people _19__ like sardines.Gardening and fishing will be pleasant pasttimes.Reading a book _20__ the warm fireside will be another pleasant pastime on a cold winter night.Life in the country is indeed simple and pleasant.
1) A enjoyable B exciting C experienced D unpleasant
2) A in B on C out of D for
3) A be visiting B be visited C visit D visited
4) A where B when C what D who
5) A wanted B wanting C available D enjoyable
6) A latest B kindest C richest D poorest
7) A of B about C if D should
8) A for B even C once D often
9) A in a moment B at the moment C in a hurry D in a line
10) A in B with C of D within
11) A than B to C over D for
12) A another B other C what else D the others
13) A expected to B want to C fail to D plan to
14) A long to B be glad to C want to D chance to
15) A apartment B school C room D city
16) A hearing B unhearing C heard D unheard
17) A leisurely B easily C conveniently D effectively
18) A a B the C / D no
19) A fighting B fighted C packing D packed
20) A behind B by C in D on
KEYS：
adbcc abacb bacda daadb
四级英语完形填空练习题及答案解3
Many students find the experience of attending universitylectures to be a confusing and frustrating experience.Thelecturer speaks for one or two hours, perhaps 1__ the talk withslides, writing up important information on the blackboard, 2___reading material and giving out 3___ .The new student sees theother students continuously writing on notebooks and 4 ___what to write.Very often the student leaves the lecture 5__notes which do not catch the main points and 6___ becomehard even for the 7___ to understand.
Most institutions provide courses which 8 ___new students to develop the skills they need to be9____ listeners and note-takers. 10___ these are unavailable, there are many useful study-skillsguides which 11___ learners to practice these skills 12___ .In all cases it is important to 13___ theproblem 14___ actually starting your studies.
It is important to 15___ that most students have difficulty in acquiring the language skills 16__in college study.One way of 17___ these difficulties is to attend the language and study-skillsclasses which most institutions provide throughout the 18 __year.Another basic 19__ is to find astudy partner 20__ it is possible to identify difficulties, exchange ideas and provide support.
1.A.extending B.illustrating C.performing D.conducting
2.A.attributing B.contributing C.distributing D.explaining
3.A.assignments B.information C.content D.definition
4.A.suspects B.understands C.wonders D.convinces
5.A.without B.with C.on D.except
6.A.what B.those C.as D.which
7.A.teachers B.classmates C.partners D.students
8.A.prevent B.require C.assist D.forbid
9.A.effective B.passive C.relative D.expressive
10.A.Because B.Though C.Whether D.If
11.A.enable B.stimulate C.advocate D.prevent
12.A.independently B.repeatedly C.logically D.generally
13.A.evaluate B.acquaint C.tackle D.formulate WWw.Kao8.CC
14.A.before B.after C.while D.for
15.A.predict B.acknowledge C.argue D.ignore
16.A.to require B.required C.requiring D.are required
17.A.preventing B.withstanding C.sustaining D.overcoming
18.A.average B.ordinary C.normal D.academic
19.A.statement B.strategy C.situation D.suggestion
20.A.in that B.for which C.with whom D.such as1.【答案】B
【解析】将第1，2，3题通盘考虑。此处意为“老师会花一两个小时用幻灯来解释讲课的内容，写出一些重要的信息,散发一些阅读材料,布置作业”。illustrate用图解说明，举例说明。
2.【答案】C
【解析】参考第1题答案。attribute把……的原因归为……;contribute有助于，贡献;distribute分发，散发，与下文的give out同义。
3.【答案】A
【解析】assignments作业，任务。
4.【答案】C
【解析】新生发现别的学生一直在记笔记,他们不知道该记些什么,所以用wonders。而suspects(怀疑);understands (理解，明白);convinces(让人相信)与题意不符。
5.【答案】B
【解析】with结构在此表示伴随的结果，说明学生听完讲座却记了一些抓不住重点的笔记。
6.【答案】D
【解析】这里是一个并列句，并列的两个部分是which do not catch the main points and which become hard even for the students to understand.
7.【答案】D
【解析】此句意为：学生记下的笔记连自己也无法明白。
8.【答案】C
【解析】鉴于上述情况，许多学校开设课程以帮助新生
培养记笔记的能力，成为一名真正有效率的听众。assist帮助，援助。
9.【答案】A
【解析】参考第8题答案。effective有效的;passive被动的;relative相对的;expressive表现的，富于表情的。
10.【答案】D
【解析】此处的意思是：如果这些课程不可行的话，还会有许多行之有效的学习技巧的指导，这些指导使学生们能够独立地锻炼这些学习技巧，在此If表示假设条件。
11.【答案】A
【解析】enable sb.to do sth使人能够干什么;stimulate激发，刺激;advocate提倡，倡导;prevent阻止。
12.【答案】A
【解析】independently独立地;repeatedly再三，重复地;logically合乎逻辑地;generally大体上，一般地。
13.【答案】C
【解析】此句意为“通常学生在开始学习之前就应该解决这种听课技能的问题”，此处C.to tackle problem意为“解决问题”。evaluate估计，评估;acquaint使认识，了解;formulate用公式表示，系统地阐述或提出。
14.【答案】A
【解析】参考13题。
15.【答案】B
【解析】这里的意思是“承认大多数学生在获取语言技能方面有困难，这是很重要的。因为只有承认这种困难才能提出克服困难的方法”。所以选B.acknowledge承认，认可。
predict预测;argue争论，论证;ignore忽略，忽视。
16.【答案】B
【解析】过去分词做定语。
17.【答案】D
【解析】克服困难用overcome difficulty。不用preventing阻止，阻碍;withstand经受住，抵抗;sustain支撑，经受。
18.【答案】D
【解析】本题涉及学年的表达方法。
19.【答案】B
【解析】此句意为：另一种基本的`方案或策略是寻找一个学习的伙伴。strategy策略，方案。
20.【答案】C
【解析】本题测试介词与关系代词的用法，with whom表示与同伴一起学习。
四级英语完形填空练习题及答案解4
Decide which of the choices given below would correctly complete the passage if ed in the corresponding blanks. Mark the correct choice for each blank on your ANSWER SHEET.
The United States is well?known for its network of major highways designed to help a driver get from one place to another in the shortest possible time. ___1these wide modern roads are generally ___2 and well maintained， with___3 sharp curves and straight sections， a direct route is not always the most ___4 one. Large highways often pass ___5 scenic areas and interesting small towns. Furthermore， these highways generally ___6 large urban centers， which means that they become crowded with ___7traffic during rush hours， ____ 8 the "fast， direct" route becomes a very slow route.
However， there is almost always another route to take ___9 you are not in a hurry. Not far from the ___10 new "superhighways"， there are often older， ___11heavily traveled roads which go through the countryside. ___12 of these are good two lane roads; others are uneven roads curving through the country. These secondary routes may go up steep slopes， along high ___13， or down frightening hillside to towns ___14 in deep valleys. Through these less direct routes， longer and slower， they generally go to places ___15 the air is clean and scenery is beautiful， and the driver may have a chance to get a fresh， clean view of the world.?
1. A. Although B. Since C. Because D. Therefore?
2. A. stable B. splendid C. smooth D. complicated?
3. A. little B. few C. much D. many?
4. A. terrible B. possible C. enjoyable D. profitable?
5. A. to B. into C. over D. by?
6. A. lead B. connect C. collectD. communicate?
7. A. large B. fast C. high D. heavy?
8. A. when B. for C. but D. that?
9. A. unless B. if C. as D. since?
10. A. relatively B. regularly C. respectively D. reasonably?
11. A. and B. less C. more D. or?
12. A. All B. Several C. Lots D. Some?
13. A. rocks B. cliffs C. roads D. paths?
14. A. lying B. laying C. laid D. lied?
15. A. there B. when C. which D. where?
答案：
1. A） ? 2. C） ? 3. B） ? 4. C） 5. D） ? 6. B）?
7. D） ? 8. A） ? 9. B） 10. A） 11. B） 12. D）
13. B） ? 14. A） ? 15. D） ?
四级英语完形填空练习题及答案解5
Most people have no idea of the hard work and worry that gosintosthe collecting of those fascinating birds and animals that they pay to see in the zoo.One of the questions that is always asked of me is 1 I became an animal collector in the first 2 .The answer is that I have always been interested in animals and zoos.According to my parents, the first word I was able to say with any 3 was not the conventional “mamma” or “daddy”,4 the word “zoo”, which I would 5 over and over again with a shrill 6 until someone, in groups to 7 me up, would take me to the zoo.When I 8 a little older, we lived in Greece and I had a great 9 of pets, ranging from owls to seahorses, and I spent all my spare time 10 the countryside in search of fresh specimens to 11 to my collection of pets.12 on I went for a year to the City Zoo, as a student 13 , to get experience of the large animals, such as lions, bears, bison and ostriches,14 were not easy to keep at home.When I left, I 15 had enough money of my own to be able to 16 my first trip and I have been going 17 ever since then.Though a collector's job is not an easy one and is full of 18 ,it is certainly a job which will appeal 19 all those who love animals and 20 .
1. A.how B.where C.when D.whether
2. A.region B.field C.place D.case
3. A.clarity B.emotion C.sentiment D.affection
4. A.except B.but C.except for D.but for
5. A.recite B.recognize C.read D.repeat
6. A.volume B.noise C.voice D.pitch
7. A.close B.shut C.stop D.comfort
8. A.grew B.was growing C.grow D.grown
9. A.many B.amount C.number D.supply
10. A.living B.cultivating C.reclaiming D.exploring
11. A.increase B.include C.add D.enrich
12. A.later B.further C.then D.subsequently
13. A.attendant B.keeper C.member D.aide
14. A.who B.they C.of which D.which
15. A.luckily B.gladly C.nearly D.successfully
16. A.pay B.provide C.allow D.finance
17. A.normally B.regularly C.usually D.often
18. A.expectations B.sorrows C.excitement D.disappointments
19. A.for B.with C.to D.from
20. A.excursion B.travel C.journey D.Trip
答案与解析：
1.A
根据下一句及随后的内容，本文讲的是怎样成为动物爱好者的(从小就喜欢动物)，应当选择A.how。
2.C
in the first place是固定短语,意思是“首先”。此句意思是：别人经常问到的问题之一，是当初我是如何爱上动物的。
3.A
这句话的意思是：作者在呀呀学语之时,最早发清楚的音是“zoo”(动物园),而不是“妈妈”,“爸爸”,因此,应选clarity“清晰”。填入其他选项emotion(感情),sentiment(多愁善感),affection(友爱)不合逻辑。
4.B
but在此处连接另一个句子(it was the word“zoo”,“it was”被省略)，表示转折，意为“而是”，Except,except for,but for的用法接近，表示“除了……”。
从意思上，逻辑上，都应当选but。
5.D
根据后面的over and over again,应选“repeat”
6.C
小孩想去动物园,便不停地发出尖叫声,故选“voice”。A shrill voice与scream的意思接近。volume(音量)；noise(噪音)；pitch(音调)均不合要求。
7.B
shut sb.up是指让某人住口，为了让孩子停止尖叫，只好带他去动物园。
8.A
根据后面主句的时态，此处只能用一般过去时。
9.C
a great many后直接跟可数名词的复数形式；a great / large amount of后跟不可数名词；只有a great /large number of后可以跟可数名词的复数形式。
10.D
living后必须接介词in，意为“居住”；cultivating耕种；reclaiming开垦；只有exploring有探察的意思。
11.C
add to相当于increase，增加。其余选项后面都不接to。
12.A
later on为固定短语，“后来”。
13.D
attendant仆人；keeper可理解为“饲养员”，但是a student keeper容易被误解为“收留学生的人”；aide有“助手”之义。作者一边上学，一边在动物园里打工，只能当助手。
14.D
which在此引导定语从句，修饰前面列出的动物。
15.D
因为钱是在动物园打工挣的，选successfully更能体现其含义。
16.D
finance my first trip意为“支付我的旅行费用”；pay后应接介词for；其他选项的意思相差远。
17.B
此句为现在完成进行时态,选regularly比较贴切。
18.D
此句是由though引导的让步状语从句，应与主句意思相对立。选项中，sorrows和disappointments与主句的appeal to相对立，但sorrows的分量太重。
19.C
appeal to为成语，意思是“吸引”。
20.B
excursion短途旅行；journey(从一地到另一地的)长距离，具体的旅途；travel旅行，旅游，海外旅行；trip旅行，远足。
四级英语完形填空练习题及答案解6
As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been 71 only once ? for a woman who had merely fainted. But the 72 made me quite curious about how 73 this kind of thing happens I wondered what I would do if 74 with a real midair medical emergency-with out access 75 a hospital staff and the usual emergency equipment. So 76 the New England Journal of Medicine last week 77 a study about in ?flight medical events. I read it 78 interest.
The study estimated that there are a(n) 79 of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not 80;fainting and dizziness are the most frequent complaints. 81 13% of them ?roughly four a day ? are serious enough to 82 a pilot to change course. The most common of the serious emergencies 83 heart trouble. strokes, and difficulty breathing.
Let’s face it: plane rides are 84.For starters, cabin pressures at high altitudes are set at roughly 85 they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty 86 ,but passengers with heart disease 87 experience chest pains as result of the reduced amount of oxygen flowing through their blood. 88 common in-flight problem is deep venous thrombosis ? the so-called economy class syndrome (综合症).89 happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation, flights with at 90 one attendant are starting to install emergency medical kits to treat heart attacks.
71 A)called C)Informed B)addressed D)surveyed
72 A)Accident C)incident B)condition D)disaster
73 A)soon C)many B)long D)often
74 A)confronted C)identified B)treatedD)provided
75 A)for C)by B)to D)through
76 A)before C)when B)since D)while
77 A)collected C)discovered B)conducted D)published
78A)by C)with B)of D)in
79 A)amount C)sum B)average D)number
80 A)significant C)common B)heavyD)serious
81 A)For C)But B)On D)So
82 A)require C)engage B)inspire D)command
83 A)include C)imply B)confine D)contain
84 A)enjoyable C)tedious B)stimulatingD)stressful
85 A)whoC)which B)whatD)that
86 A)harshlyC)easily B)reluctantly D)casually
87 A)ought to C)used to B)may D)need
88 A)Any C)Other B)One D)Another
89A)Whatever C)Whenever C)Whichever D)Wherever
90A)mostC)least B)worstD)best
答案与解析
71 A ) called 72 A) accident 73 D) often 74 A) confronted 75 B) to 76 C) when 77 D) published 78 C) with 79 B) average 80 D) serious 81 C) But 82 A ) require 83 A ) include 84 D) stressful 85 B ) what 86 C) easily 87 B) may 88 D) Another 89 A ) Whatever 90 C) least
四级英语完形填空练习题及答案解7
As the plane circled over the airport, everyone sensed that something was wrong.The plane was moving unsteadily through the air, and 1 the passengers had fastened their seat belts, they were suddenly 2 forward.At that moment, the air-hostess 3 .She looked very pale, but was quite 4 .Speaking quickly but almost in a whisper, she 5 everyone that the pilot had 6 and asked if any of the passengers knew anything about machines or at 7 how to drive a car.After a moment?s 8 , a man got up and followed the hostesssintosthe pilot's cabin.Moving the pilot 9 , the man took his seat and listened carefully to the 10 instructions that were being sent by radio from the airport 11 .The plane was now dangerously close 12 the ground, but to everyone's 13 , it soon began to climb.The man had to 14 the airport several times insgroupsto become 15 with the controls of the plane. 16 the danger had not yet passed.The terrible 17 came when he had to land.Following 18 , the man guided the plane toward the airfield.It shook violently 19 it touched the ground and then moved rapidly 20 the runway and after a long run it stopped safely.
1.A.although B.while C.therefore D.then
2.A.shifted B.thrown C.put D.moved
3.A.showed B.presented C.exposed D.appeared
4.A.well B.still C.calm D.quiet
5.A.inquired B.insured C.informed D.instructed
6.A.fallen B.failed C.faded D.fainted
7.A.best B.least C.length D.first
8.A.hesitation B.surprise C.doubt D.delay
9.A.back B.aside C.about D.off
10.A.patient B.anxious C.urgent D.nervous
11.A.beneath B.under C.down D.below
12.A.to B.by C.near D.on
13.A.horror B.trust C.pleasure D.relief
14.A.surround B.circle C.observe D.view
15.A.intimate B.familiar C.understood D.close
16.A.Then B.Therefore C.But D.Moreover
17.A.moment B.movement C.idea D.affair
18.A.impression B.information
C.inspections D.instructions
19.A.as B.unless C.while D.so
20.A.around B.over C.along D.above
Cloze Test 25
1.【答案】A
【解析】本句意为尽管乘客们都已经系好安全带，他们还是被突然向前抛去。Although尽管，引导让步状语从句，符合句意。while当……时候；therefore因此；then接着、然后。
2.【答案】B
【解析】根据上题注释，这里选择throw扔、抛，最为合适。shift转移；move移动。
3.【答案】D
【解析】show展示、表明；present呈现、陈述，及物动词；expose暴露。appear出现，符合句意。
4.【答案】C
【解析】well健康的；still静止的；calm镇静的；quiet安静的。前句说她看上去脸色苍白，后半句进行转折，calm最符合句意。
5.【答案】C
【解析】inform通知、告诉，符合句意。inquire询问；insure保险、投保，常与aginst连用；instruct指示、指令。
6.【答案】D
【解析】fallen摔倒、跌落；fail失败；fade衰弱(视力、听觉、记
忆)；faint昏迷、晕倒。D项最符合句意。
7.【答案】B
【解析】at best最多、至多；at least至少；at length详细地；at first开始、最先。at least最符合句意。
8.【答案】A
【解析】hesitation犹豫；surprise吃惊；doubt疑问；delay延迟。hesitation最符合句意。
9.【答案】B
【解析】本句意为把飞行员挪到一边。aside意为一边、旁边，符合句意。back向后；about到处；move off指车辆启程。
10.【答案】C
【解析】本句意为：这个人坐到飞行员的座位上，认真听发自下面机场通过无线电发出的紧急指令。patient耐心的；anxious焦急的；nervous紧张的，都不符合句意。只urgent合适。
11.【答案】D
【解析】beneath和under为介词，后面必需接名词。down向下地，副词。below在下方地，副词，符合句意。
12.【答案】A
【解析】close与介词to连用，意为近的。其他介词不与close搭配。
13.【答案】D
【解析】horror恐惧；trust信任；pleasure愉快；relief(痛苦、忧虑)
解除。to one?s relief意为让某人松了一口气，最符合句意。
14.【答案】B
【解析】surround包围；circle盘旋；observe观察；view认为。此处选择circle，最符合句意。
15.【答案】B
【解析】be familiar with为固定搭配，意为熟悉，排除其他选项。
16.【答案】C
【解析】本句意为危险还没过去，与前句形成转折关系。选项中then表顺承，therefore表结果，but表转折，moreover表递进。
17.【答案】A
【解析】根据句意推断，空格处所填词应与when he had做同位语，故moment符合句意。movement运动，idea想法，affair事件。
18.【答案】D
【解析】following…这个分词的逻辑主语应为the man，本句意思应为，这个人遵照指令，驾驶飞机朝机场飞去。impression意为印象，information消息，inspections视察，instructions指令。
19.【答案】A
【解析】as当……的时候，符合句意。unless除非。while当……时候，它引导的从句动作时间比as引导从句动作的时间要长。So因此，表结果，不符合句意。
20.【答案】C
【解析】本句意为：飞机沿着跑道滑行了很长一段距离后，安全地停下来了。movealong是沿着……移动的意思。around在……周围，over在……之上，above在……上方。只有along符合句意。
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