大学英语B模拟一及参考答案
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大学英语B级考试模拟试题与答案解析大学英语(B)模拟试题1Part I Use of English (20 points)Directions: In this part there are 10 incomplete dialogues。
For each dialogue there are four choices marked A,B, C and D. Choose the ONE answer that best completes the dialogue。
Then mark the corresponding letter on the Answer Sheet with a single line through the center。
1. --—Hello, may I talk to the headmaster now?--- __________ .A。
Sorry, he is busy at the moment B. No, you can’tC. Sorry, you can’tD. I don't know2. --—Do you think I could borrow your dictionary?——- __________ .A。
Yes, you may borrow B。
Yes,go onC。
Yes, help yourself D. It doesn't matter3. -—- Is that Mr Robert Lee?——- __________ 。
A. Yes,Lee speakingB. Hello,what do you wantC. Sorry,speakingD. I don’t know4. --—Excuse me,sir. Where is Dr. Brown’s office?—-- __________ 。
一、交际用语共5题,15分1— I'm sorry. I am late due to the heavy traffic.— ________A.Well, it's OK .B.No, it's all right.C.You are welcome.D.You are wrong.正确答案:A解析:道歉用语,第一句话“I'm sorry. I am late due to the heavy traffic.对不起,因为堵车我迟到了。
”考察表示歉意与回答。
Well, it's OK.好吧,没关系。
B. No, it's all right. 不,没事。
C. You are welcome.你客气啦。
D. You are wrong.你错了。
2— It's rather cold in here. Do you mind if I close the window?— ________A.Yes, please.B.No, please.C.Sure, please.D.I don't like it.正确答案:B解析:考查表请求的交际用语。
No, please.不介意,关吧。
It's rather cold in here. Do you mind if I close the window?这里有些冷,我关上窗子,你不介意吧?这里考察的是Do you mind if I句型的用法,对于此句型的回答如下:关于如何回答该句型的问题.1.若表示“不介意”或“同意”时,常用否定形式.如:① No, of course not.① No, certainly not.① No, not at all.① No, go ahead.① No, do as you like.① No, indeed.① No, please.① No, I don't mind.① No, do it please.① Not in the least.等.2.若表示“介意”或“不同意”时,则常用较委婉的方式加以拒绝.如:① I'm sorry but I do.① Sorry,you'd better not.① I'm afraid you can't.① I wish you wouldn't ...① I'm sorry,but it's not allowed ...① Yes,I do mind.等. 其中,很少用Yes,I do mind来回答,因这种答语显得较生硬.3— ________— He teaches physics in a school.A.What does your father do?B.Who is your father?C.What is your father doing?D.Where is your father now?正确答案:A解析:询问职业用语,先看回答句:He teaches physics in a school.意思是:他在学校教物理。
大学英语1b考试题库及答案一、选择题(每题2分,共20分)1. The book is ________ interesting that I want to read it again.A. soB. suchC. veryD. too答案:A2. He is ________ a fool as to believe such a lie.A. soB. suchC. veryD. too答案:B3. ________ the heavy rain, the game had to be canceled.A. Due toB. Because ofC. Owing toD. In spite of答案:A4. The teacher asked us to ________ the composition in 30minutes.A. write downB. write upC. write offD. write out答案:D5. ________ the news, he felt very excited.A. To hearB. HearingC. Having heardD. To be heard答案:B6. The meeting will be held ________ next week.A. some timeB. some timesC. sometimesD. some time答案:A7. ________ the truth, I don't like the way he talks.A. TellingB. To tellC. ToldD. Having told答案:B8. The experiment was ________ difficult that we couldn't finish it in time.A. soB. suchC. veryD. too答案:A9. ________ the book, he turned on the radio.A. Having readB. ReadC. ReadingD. To read答案:A10. The weather is ________ cold for us to go out.A. soB. suchC. veryD. too答案:D二、填空题(每题2分,共20分)1. The ________ (教授) gave us a lecture on environmental protection.答案:professor2. She is a ________ (护士) in the local hospital.答案:nurse3. The ________ (会议) will start at 9:00 AM.答案:meeting4. He is a ________ (工程师) in a software company.答案:engineer5. The ________ (经理) is responsible for the company's operations.答案:manager6. She is a ________ (记者) for the local newspaper.答案:reporter7. The ________ (医生) advised him to take a rest.答案:doctor8. The ________ (教授) is giving a lecture on history. 答案:professor9. He works as a ________ (建筑师) in a design firm.答案:architect10. She is a ________ (教师) in the primary school.答案:teacher三、阅读理解(每题2分,共20分)阅读以下短文,并回答1-5题。
一、交际英语1、- Your dress is very beautiful.- ________________ I bought it yesterday.A、Oh, no.B、Oh, really?C、Just so-so, I think.D、Thank you.参考答案:D解析:空2、- Thank you for your invitation.- _________A、It doesn't matter.B、It's a pleasure.C、It's a small thing.D、I'll appreciate it.参考答案:B解析:【答案】B【解析】这是对赴宴就餐邀请的回答用语。
在西方,通常应答应是“It’s a pleasure”,“My pleasure” “我很荣幸”之类的回答。
3、- Good morning, may I speak to Mark, please?- _________A、Who's there?B、Who's that speaking?C、Who are you?D、Who wants to speak to Mark?参考答案:B解析:【答案】B【解析】这是打电话时的用语。
接电话的人正是对方要找的人,所以说:“请问你是谁?”。
其它各项均不是电话用语。
4、- What do you think of this novel?- _________A、I've read it.B、It's well-written.C、It was written by my uncle.D、I bought it yesterday.参考答案:B解析:【答案】B【解析】此句为询问对方对这本小说的看法,典型的询问信息用语。
在回答时应明确针对提问应答。
B 项是“写的很好”,完全表达了说话者的看法。
其它各项答非所问。
PartⅠListening ComprehensionSection A1.A)2.C)3.D)4.D)5.C)Section B6.C)7.A)8.C)9.B)10.B)Section C11~15stood,advice,began,said,Count。
PartⅡStructureSection A16.C)17.A)18.D)19.B)20.D)21.A)22.C)23.B)24.B)25.A)Section B26.was playing。
27.would stop。
28.survivors。
29.to visit。
30.discussing。
31.repaired。
32.purify。
33.dangerous。
34.possibility。
35.clearer。
PartⅢReading ComprehensionTask136.A)37.C)38.B)39.D)40.C)41.C)42.B)43.A)44.B)45.A)Task346.St.Martin's College。
47.Saturday afternoon。
48.Monday23,September。
49.$120。
50.Conference organizer。
Task451.(B)日期邮戳(F)请转发52.(C)特快专递(O)免负邮资53.(H)挂号信(A)航空信54.(M)邮寄名单(P)邮资已付55.(J)电讯服务(G)邮政信箱Task556.Transformers。
57.The details。
58.technical specification。
59.More than10units。
60.pictures(of transformers)。
PartⅣTranslation(按四等评分:2-1.5-1-0分)61.D-C-B-A 62B-C-D-A 63.D-A-B-C 63B-A-C-A65.对我们有利的一种技术也可能有弊,认识到这一点很重要。
一、单选题(共 20 道试题,共 80 分。
)V1. The sports meeting was put off till the next week __________ rain.A. in spite ofB. soC. becauseD. because of满分:4 分2. I'm glad I went over all my notes; otherwise __________.A. I may have failedB. I'd failC. I'd have failedD. I'll have failed满分:4 分3. The boss, narrow-minded and quick-tempered, _______ to get angry when othersdisagree with her.A. plansB. comesC. intendsD. tends满分:4 分4. If only I __________ my watch!A. hadn't lostB. haven't lostC. didn't lostD. don't lose满分:4 分5. You _______ such a serious mistake if you had followed his advice.A. may not makeB. might not makeC. shouldn't have madeD. might not have made满分:4 分6. I was satisfied with her explanation, ________.A. so my classmates wereB. so were my classmatesC. so my classmates didD. so did my classmates满分:4 分7. __________, I would take an umbrella with me.A. Had I been youB. I were youC. Were I youD. I had been you满分:4 分8. Picking apples was hard work, ________ they really enjoyed it.A. andB. soC. butD. or满分:4 分9. What a bad memory I’ve got! I even forgot _________ the book with me.A. tookB. takingC. takeD. taken满分:4 分10. The mad man was put in the soft-padded cell lest he ________ himself.A. injureB. had injuredC. injuredD. would injure满分:4 分11. It's necessary that he ________ a recognized qualification.A. hasB. haveC. hadD. having满分:4 分12. How often do you _________ your brother?A. hear aboutB. hear ofC. hear toD. hear from满分:4 分13. We ________ the work on time without your help.A. hadn't had finishedB. didn't have finishedC. couldn't have finishedD. can't have finished满分:4 分14. A fully qualified ________ can help different parties to overcome language barriersand bring about a meeting of minds like milk mingling with water.A. interpreterB. guideC. agentD. companion满分:4 分15. Please put aside that issue for the time being and ________ your minds on thefollowing problems.A. putB. placeC. turnD. focus满分:4 分16. Had you listened to the doctor, you _________ all right now.A. areB. wereC. would beD. would have been满分:4 分17. If there __________ no air, people would die.A. wereB. isC. beD. been满分:4 分18. Window screens are ________ in keeping out mosquitoes and thus very popular insummers.A. affectedB. infectedC. effectiveD. infective满分:4 分19. A few minutes earlier and we ________ the train.A. have caughtB. had caughtC. could have caughtD. were to catch满分:4 分20. Professor, would you slow down a bit, please? I can't _________ you.A. keep up withB. put up withC. make up toD. hold on to满分:4 分、判断题(共 10 道试题,共 20 分。
全国高校网络教育部分公共基础课统一考试用书大学英语(B)模拟试卷 (2010年修订版)Test 1第一部分:交际用语(共5小题;每小题3分,满分10分)此部分共有5个未完成的对话,针对每个对话中未完成的部分有4个选项,请从A、B、C、D 四个选项中选出正确选项。
1.—How are you,Bob?— __________Ted.A.How are you? B.I’m fine.Thank you.C.How do you do? D.Nice to meet you.2.—Thanks for your help.—A.My pleasure.B.Never mind.C.Quite right.D.Don’t thank me.3.—Hello.I’m Harry Potter.—Hello,my name is Charles Green, but ____________.A.call my Charles B.call me at CharlesC.call me Charles D.call Charles me4.—Paul,______?—Oh,that’s my father! And beside him,my mother.A.what is the person over there B.who’s talking over thereC.what are they doing D.which is that5.—Hi, Tom, how’s everything with you?—, and how are you?A.Don’t mention it B.Hmm, not too badC.Thanks D.Pretty fast第二部分:阅读理解(共10小题;每小题3分,满分30分)此部分共有3篇短文,每篇短文后有5个问题。
请从每个问题后面的A、B、C、D四个选项中选出正确选项。
大学英语B统考模拟试卷及参考答案一第一部分交际英语此部分共有5个未完成的对话,针对每个对话中未完成的部分有4个选项,请你从A, B, C, D四个选项中,选出可以填入空白处的最佳选项。
1.— Would you mind helping me to get it upstairs?— _____A. Yes, it is.B. No, it isn't.C. Sure.D. No, of course not.正确答案:D题目解析:译文:你能帮我把它拿到楼上去吗?解析:A是的,它是。
B不,它不是。
C当然。
D不,当然不介意。
所以根据题意正确答案为D。
2.— Is this beautiful?— _____A. Yes, rarely have I seen this before.B. Yes, I need a rest.C. No, tomorrow will be fine.D. No, the work should be done by him.正确答案:A题目解析:译文:这个好看吗?解析:A是的,我之前很少看到过这么好看的。
B 是的,我需要休息。
C不,明天就可以。
D不,这项工作需要由他来完成。
根据题意正确答案为A。
3.― _____― An accident has happened.A. Where was the accident?B. What happened?C. When was the accident?D. Why did it happen?正确答案:B题目解析:译文:一场事故发生了。
解析:答案A这场事故在哪儿?答案B发生什么事情了啊?答案C这个事故什么时候发生的啊。
答案D为什么会发生啊?根据回答表示问的是发生什么了,正确答案选B。
4.― Excuse me, how soon does this train leave?― _____A. It leaves every half an hour.B. It leaves in ten minutes.C. The next trains leaves at ten.D. There is one at four.正确答案:B题目解析:译文:对不起,多久这辆车才会离开?解析:答案A每半小时离开一次。
大学英语B统考模拟试卷及参照答案5第一部分交际英语此部分共有5个未完毕旳对话,针对每个对话中未完毕旳部分有4个选项,请你从A, B, C, D四个选项中,选出可以填入空白处旳最佳选项。
1.— How often do you take the medicine?— _____four hours.A. SinceB. EveryC. ForD. In对旳答案:B题目解析:译文:我应当隔多长时间吃一次药呢?解析:从how often旳提问可以看出来,是对事件频率旳提问,只有Bevery符合,译为每隔四个小时。
2.— What time did you get home yesterday?— _____nine o'clock _____the morning.A. On, inB. At, onC. At, inD. On, at对旳答案:C题目解析:译文:昨天你几点到旳家?解析:回答旳应当是具体时间,而具体时间之前应当用at,in the morning是固定搭配,因此选C。
3.― May Mr. David see me today?― _____A. No problem.B. He'd love to.C. No, he's busy.D. Yes, how about two o'clock.对旳答案:D题目解析:译文:Mr. David今天会见我吗?解析:答案A没问题。
答案B她会喜欢旳。
答案C不行,她很忙。
答案D是旳,时间是下午两点。
对旳答案选D。
4.― Could you give me a help?― _____A. No, I can't.B. Certainly.C. Yes, I could.D. I couldn't help you.对旳答案:B题目解析:译文:你能帮我一下吗?解析:答案A不,我不能。
答案B固然可以。
答案C 是旳,我能。
一级b英语考试口试答案
一级B英语考试口试答案
1. 请用英语自我介绍。
- 我叫李明,今年20岁,来自中国北京。
我目前是一名大学生,主修计算机科学。
我的兴趣爱好包括阅读、旅游和打羽毛球。
我希望通过学习英语,能够更好地与来自不同国家的人交流。
2. 描述一下你最喜欢的一本书。
- 我最喜欢的一本书是《小王子》。
这本书由法国作家安托万·德·圣埃克苏佩里所著,讲述了一个小王子在不同星球上的冒险故事。
这本书不仅语言优美,而且寓意深刻,让我思考了友谊、爱和责任的重要性。
3. 请谈谈你对环境保护的看法。
- 环境保护对我们每个人都至关重要。
随着工业化的发展,环境污染和生态破坏问题日益严重。
我认为,我们可以通过减少使用一次性塑料制品、节约能源和支持可持续发展的方式来保护环境。
此外,政府和企业也应该承担起责任,制定和执行严格的环保法规。
4. 描述一次你难忘的旅行经历。
- 去年夏天,我去了云南旅行,那是一次难忘的经历。
我参观了丽江古城,感受了纳西族的传统文化;我还去了玉龙雪山,那里的自然风光令人震撼。
这次旅行不仅让我放松了心情,也让我对不同地区的文化有了更深的了解。
5. 请用英语描述一下你的家庭。
- 我有一个幸福的家庭,包括我的父母和我。
我的父亲是一名工程
师,他工作勤奋,总是鼓励我追求自己的梦想。
我的母亲是一名教师,她非常慈爱,总是关心我的学习和生活。
我们经常一起外出旅游,享
受家庭时光。
我爱我的家人,他们给了我很多支持和爱。
大学英语B模拟一第一部分:英语知识运用(共10小题;每小题2分,满分20分)此部分共有10个未完成的对话,针对每个对话中未完成的部分有4个选项,请你从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并用铅笔将答题卡上的相应字母涂黑。
示例[A] [B] [▆] [D]1.― Where have you been lately― _________________.A. I’ve been to Shanghai on businessB. I’ve a lot of work to doC. Everything is fineD. Yes, I haven’t seen you either2. ― Hello. How is everything― _________________.A. Nothing muchB.Fine, thanks. How about youC.I’m pleased to meet youD. I’m fine, thanks3. ― How often is there a flight to Paris― _________________.A. Do you have your passport with youB. There’s nonstop flights.C. It will leave at 10.D. We have flights to Paris every hour4. ― Hi! George. How are you― _________________.A. That’s all right.B. Don’t mention it.C. How are youD. Fine, t hanks. And you5. ― Sorry, I didn’t catch what you said.― ________________.A. That’s fine.B. Don’t say it again B. I said I was arried. D. It’s a pity, isn’t it6. ― Excuse me, how can I get to the nearest subway station― ________________.A. It’s two blocks up this street.B. Yes. You are going the wrong way.C. Don’t talk about it.D. I need your help.7. ― My cat is ill. She won’t eat anything.― ________________.A. You’d better go to the clinic.B. Why not get something to eatC. I would go on diet if I were you.D. You should take her to the vet.8. ― Oh, goodness! I haven’t got any money on me!― ________________.A. Keep the change please.B. Let me lend you some.C. Sorry, I haven’t got one.D. It’s good to save some money.9. ― Would you mind i f we asked you for some advice― ________________.A. Thank you so much.B. Er. What can I do for youC. That’s all right.D. Yes. Please go ahead.10. ― I hope I am not interrupting your work.― ________________.A. It’s hard to say.B. O.K. Let’s start again.C. Please go on with your work.D.Oh,that’s all right.第二部分:阅读理解(共20小题;每小题2分,满分40分)此部分共有4篇短文,每篇短文后有5个问题,每个问题后有4个选项,请你从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并用铅笔将答题卡上的相应字母涂黑。
示例[A] [B] [▆] [D]Passage 1A farmer had once made a purchase of a fine fat sheep, hoping to offer it up to the Buddha. While he was leading it home, four thieves saw him and made up their minds to steal the sheep. They knew him to be an honest person and one who thought of no more harm in others than he had in himself. They dared not take the sheep away from him by force, for they were too near the city. Therefore, they thought hard and got an idea: they first parted company and then came to the man as if they had come from several distinct parts.The first thief came up to the farm and sai d, “My good old man, why are you leading this dog”At this moment the second thief, coming from another direction, cried to him, “ Poor old man, where have you stolen this dog” And immediately after these words, the third thief came up and asked the farmer, “Where are you going with this handsome greyhound”The poor farmer began to doubt whether the sheep was a sheep or not. But the fourth robber put him quite beside himself by coming near him and asking what the dog cost him.The farmer began to think and got the conclusion that the four men, who came from different directions, could not all be wrong. He believed that the sheep he was leading was a dog. On realizing this, the farmer went back quickly to the market to demand his money of the person who sold him the dog, leaving the dog with the four thieves.1.The farmer _________________.A. bought a sheep in the cityB. bought a sheep in the marketC. led a sheep to the market to sell C. stole a sheep in the city12. The four thieves decided to play a trick to get the sleep because _________________.A. the farmer had never been to the cityB. the farmer was honest and would be easily cheated by their tricksC. the farmer was narrow-mindedD. the farmer was stupid13. The farmer began to have a doubt when the _________________ thief called his sheep a dog.A. firstB. secondC. thirdD. fourth14. Which of the following statements is true according to the passageA. The animal was really a dogB. The four thieves knew about the farmerC. The four thieves had tried to rob the farmer but failedD. The farmer was sure that he had bought a sheep15. What can be concluded from the story is __________________.A. don’t try to buy a sheep as an offering to the BuddhaB. if there were four persons saying it was a sheep, it was certainly a sheepC. the farmer was really cheated by the four thievesD. the farmer saw through the thieves’ tricksPassage 2Prior to modern times, Western Europe was an underdeveloped rather than a developed region. In the eleventh century China was producing two and a half times as much iron as did England and Wales together in 1640. By the twelfth century several Chinese cities had a population equal to that of the whole contemporary England --- about 1.3 million people. When the Westerners began their attack of Constantinople in 1203, they were full of respects for those high walls, those mighty towers, those rich palaces and churches, of which there were so many that no man could believe it if he had not seen them with their own eyes.In modern times the situation was changed, thanks in large part to the profits from overseas trade and colonies, and to the settlement in new continents. Therefore, ninety percent of the world’s total industrial output comes today from European origin. About two-thirds of the world’s people are earning about $200 per capita every year, while the remaining one-third enjoy per capita incomes as high as $2,400 in the case of the United States.16. In the 11th century China was ___________________.A. more underdeveloped than Western Europe.B. more advanced in technology than EnglandC. as developed as Western EuropeD. producing as much iron as Western Europe17. Constantinople was __________________.A. a part of Western EuropeB. part of ChinaC. quite rich and prosperousD. was a city with a population of 1.3 million18. Europe became much more developed in modern times mainly by __________________.A. attacking ConstantinopleB. making profits from foreign trade and their coloniesC. learned from the developed parts of the world and improved its technologyD. having its people form the idea of working hard19. It can NOT be concluded from the passage that ____________________.A. several Chinese cities altogether had a total population of 1.3 millionB. westerners admired Constantinople for its marvelous buildingsC. Constantinople was much more developed than the invaders’ hometownD. Americans have much higher salaries than two-thirds of the world’s people20. Which of the following is true according to the passageA. Four-fifths of the world’s products come from Europe.B. Ninety percent of the world’s industrial output is from EuropeC. Europe began to develop when they attacked ConstantinopleD. Westerners set up colonies after they became richPassage 3The body of an animal may well be compared with some machine like a locomotive engine. Indeed, the animal body is a machine. It is a machine composed of many parts doing some particular kind of work for which a particular kind of structure fits it. All the parts are dependent on each other and work together for the accomplishment of the total business of the machine. The locomotive must be provided with fuel, such as coal or wood or other combustible substance, the consumption of which provides the force or energy of the machine. The animal body must be provided wit fuel, which is called food, which similarly provides the energy of the animal. Oxygen must be provided for the combustion of the fuel in the locomotive and of the food in the body. The locomotive is composed of special parts: the fire box for the storage and combustion of fuel; the steam pipes for the carriage of steam; the wheels for locomotion; the chimney for throwing off waste. The animal body is similarly composed of such parts as the stomach for the storage and digestion of food, the organs for the throwing off of waste water, the blood vessels for the carriage of oxygen and food-holding blood, the legs or wings for locomotion.21. The body of an animal is like a locomotive in that ___________________.A. it is composed of many parts that work just like different parts of a locomotiveB. it can do some particular kind of workC. it works like all the machines in the worldD. both the animal and the locomotive need coal or wood as their fuel22. Every part of the animal body __________________.A. works independentlyB. works dependently on each otherC. looks like the same as that of a machineD. has the same structure as that a machine23. The energy of an animal is provided by ____________________.A. throwing off wasteB. the combustion of fuels such as coal or woodC. consumption of foodD. the carriage of blood24. The function of the animal’s legs is like __________________ of a machine.A. the wheelsB. chimneyC. steam pipesD. the fire box25. The steam pipes of a locomotive work like the __________________ of an animal body.A. stomachB. blood vesselsC. legsD. wingsPassage 4I once amused myself by asking persons on the street, in stores and on street cars what they most desired out of life. This was before the polls of Mr. Gallup or of the inquiring reporter. I expected those questioned to place foremost good health. But they did not. Neither did they say salvation or life after death. Quite differently, their first wish was more money to spend.Secondly, they wanted more happiness out of life.These may not be the answers I thought they ought to give, but they appeared to be sincere and honest answers. Who does not want happiness,or more money to spendAs these seem to be almost universal desires they merit consideration. So, since taking this poll I have from time to time speculated on what social science might do to bring about these desiderata.Our first question is: What is the promise of social science in regard to the standard of living After examining that, we can consider what social science promises in regard to happiness.The outlook for a higher plane of living for all of us here in the United States is very good indeed. The wealth we probably will have, however, will not be wholly an achievement of social science; it will be the result also of natural science. For we must have tools as well as markets to produce wealth.16. Before interviewing people on the street, the author had hoped that _____________________.A. people would put good health in the first placeB. people would think salvation most importantC. people wished to have an after-life firstD. people’s first wish was spending more money17. The author did the research _____________________________.A. in order to write a reportB. just for funC. so as to finish his workD. to make more money18. According to the author’s poll, people’s first expectation was __________________________.A. enjoy happiness from lifeB. having good healthC. salvationD. having more money to spend19. The result of the poll makes the author think about _____________________________.A. the philosophy of lifeB. social science’s role in improving the standard of livingC. natural science’s bit in increasing people’s incomeD. whether it was right to put money in the first place20. The author’s conclusion about a higher standard of living is _________________________.A. social science is the only factor to improve the standard of livingB. natural science is the only factor improve the standard of livingC. both social science and natural science should play their respective roles in the realization of it.D. tools are more important than markets to improve the standard of living第三部分:词汇与结构(共25小题;每小题1分,满分25分)第一节:此小节共有15个未完成的句子,针对每个句子中未完成的部分有4个选项,请你从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并用铅笔将答题卡上的相应字母涂黑。