MBA联考英语模拟考试试题(阅读理解部分)5

MBA 联考英语模拟考试试题(阅读理解部分)5

Section III Reading Comprehension

Directions:

Read the following four passages. Answer the questions below each passage by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. (40 points)

1

At 26, Jane Goodall had no college education or science training. But since childhood, she had been dreaming of working closely with animals in Africa. "All through my childhood people said you can't go to Africa. You're a girl." Goodall says. "But my mother used to say, if you really want to, there's nothing you can't do."

In 1957, the 26-year-old Goodall went to Kenya to work as a secretary. She also arranged to meet the famous scientist Louis Leakey, who was so impressed by her enthusiasm that he hired her as his assistant. She went with him on many trips to the African jungle and in 1960 Leakey sent Goodall to live among chimpanzees (黑猩猩) in a remote animal preserve, recording the animals’ behavior and interactions.

For three months Goodall made little progress. But she says, "I never came close to giving up." Her breakthrough came one day when she saw a male chimpanzee stick a piece of grass into a termite hill, then put the grass in his mouth. Afterward she came to the hill and did the same. Pulling the grass out, she discovered dozens of termites on it. The discovery - that some animals use tools - was unknown to most scientists at the time.

Goodall saw chimpanzees show human-like emotions, such as jealousy and love. But she also discovered they were capable of violent attacks against each other.

Goodall received her Ph.D. in the study of animal behavior at England's Cambridge University. Now she travels around the world raising money to preserve wildlife. "I love living in the forest with the chimpanzees," she says. "I'd much rather be there than traveling around from city to city."

41. What was Goodall's childhood dream?

A. She dreamed of going to college.

B. She dreamed of becoming a famous scientist.

C. She dreamed of studying animals in Africa.

D. She dreamed of traveling all around the world.

42. Goodall's most important discovery is that ____________.

A. animals have emotions

B. some animals use tools

C. chimpanzees could attack each other violently

D. termites are chimpanzees' favorite food

43. Goodall's success is chiefly due to____________.

A. her exceptional talents

B. determination and patience

C．secretary training

D. her education and good work

44. What is Goodall doing now?

A. Studying animal behavior at Cambridge University.

B. Observing chimpanzees in African jungles.

C. Raising funds for the preservation of wildlife.

D. Working hard for a Ph.D. degree.

45. In line 11. "came close to giving up" means ___________.

A. coming near the animal preserve

B. recording the animals' behavior and interactions

C. thinking about stop doing her job

D. making friend with the chimpanzees

2

Chinese businesses are being urged to get ready for a new global standard on electronic trade after China joins World Trade Organization (WTO).

E-business analysts at the E-Trade 2000 forum warned that many domestic firms may be pushed to the sidelines of profitable global trade if they continue to ignore the Internet as a means of doing business.

A uniform standard on e-trade, although not yet available, would become a top WTO priority, analysts said.

"Developed countries may play the upper hand and adopt a new standard on e-trade. It will create big challenges to domestic enterprises which are far away from global rules." said Fan Yueying, deputy director of China Information Economy Institute.

Fan, also president of Mytong Technology Co. Ltd., one of China's leading trade information companies, said Thursday that Chinese firms still underestimate what e-trade could do for their business.

"Bricks-and-mortar firms still have a wait-and-see attitude to e-trade. Most of the firms just think that opening a webpage and making an e-mail system is enough for cyber deals. That is far from enough," said Fan.

A recent poll by Beijing Internet Development Centre found only 4.5 per cent of trade firms in China did online trade, while 23.6 per cent had not put online business on their agenda.

"Chinese firms also tail foreign players in adopting new business models, which has cut their global competitiveness," said Michael Kleist, president of E-trade Agents Association, China.

46. The E-trade 2000 Forum was most likely held in __________.

A. Bangkok

B. Shanghai

C. New York

D. Tokyo

47. E-business refers to _________.

A. business with EU.

B. electricity trade.

C. ignoring the Internet as a means of trade

D. none of the above

48. What attitude do bricks-and-mortar firms hold to e-trade?

A. Active.

B. Pessimistic.

C. Like a spectator.

D. Ignoring.

49. According to Kleist, what has cut Chinese firms' global competitiveness?

A. Independent development.

B. Adopting old business models.

C. Tailing foreign Firms.

D. Ignoring new business models.

50. According to the passage, which of the following statements is not true?

A. Opening a webpage and making an e-mail system is enough for doing e-trade.

B. WTO is working towards a uniform standard on e-trade.

C. Many Chinese firms still don't know the advantages of e-trade.

D. Internet is an important means of doing business nowadays.

3

Historians have only recently begun to note the increase in demand for luxury goods and services that took place in eighteenth-century England. McKendrick has explored the Wedgewood Firm's remarkable success in marketing luxury pottery. Plumb has written about the proliferation of provincial theaters, musical festivals and children's toys and books. While the fact of this consumer revolution is hardly in doubt, three key questions remain: Who were the consumers? What were their motives? And what were the effects of the new demand for luxuries?

An answer to the first of these has been difficult to obtain. Although it has been possible to infer from the goods and service actually produced what manufacturers and servicing trades thought their customers wanted, only a study of relevant personal documents written by actual consumers will provide a precise picture of who wanted what. We still need to know how large this consumer market was and how far down the social scale the consumer demand for luxury goods penetrated. With regard to this last question, we might note in passing that Thompson, while rightly restoring laboring people to the stage of eighteenth-century English history, has probably exaggerated the opposition of these people to the inroads of capitalist consumerism in general: for example, laboring people in eighteenth-century England readily shifted from

home-brewed beer to standardized beer produced by huge, heavily capitalized urban breweries.

To answer the question of why consumers became so eager to buy, some historians have pointed to the ability of manufacturers to advertise in a relatively uncensored press. This, however, hardly seems a sufficient answer. McKendrick favors a Veblen model of conspicuous consumption stimulated by competition for status. The "middling sort" bought goods and services because they wanted to follow fashions set by the rich. Again, we may wonder whether this explanation is sufficient. Do not people enjoy buying things as a form of self-gratification? If so, consumerism could be seen as a product of the rise of new concepts of individualism and materialism, but not necessarily of the frenzy for conspicuous competition.

Finally, what were the consequences of this consumer demand for luxuries? McKendrick claims that it goes a long way toward explaining the coming of the Industrial Revolution. But does

it? What for example, does the production of high-quality pottery and leys have to do with the development of iron manufacture or textile mills? It is perfectly possible to have the psychology and reality of consumer society without a heavy industrial sector.

That future exploration of these key questions is undoubtedly necessary should not, however, diminish the force of the conclusion of recent studies: the insatiable demand in eighteenth-century England for frivolous as well as useful goods and services foreshadows our own world.

51. In the first paragraph, the author mentions McKendrick and Plumb most probably in order to____________.

A. contrast their views on the subject of luxury consumerism in eighteenth-century England.

B. indicate the inadequacy of historiographical approaches to eighteenth-century English history.

C. give examples of historians who have helped to establish the fact of growing consumerism in eighteenth-century England.

D. support the contention that key questions about eighteenth-century consumerism remain to be answered.

52. According to the passage, Thompson attributes to laboring people in eighteenth-century England which of the following attitudes toward capitalist consumerism?

A. Enthusiasm

B. Curiosity

C. Ambivalence

D. Hostility

53. According to the passage, eighteenth-century England and the contemporary world of the passage's readers are _____________.

A. dissimilar in the extent to which luxury consumerism could be said to be widespread among the social classes

B. dissimilar in the extent to which luxury goods could be said to be a stimulant of industrial development

C. similar in their strong demand for a variety of goods and services

D. similar in the extent to which a middle class could be identified as imitating the habits of a wealthier class

54. It can be inferred from the passage that the author would most probably agree with which of the following statements about the relationship between the Industrial Revolution and the demand for luxury goods and services in eighteenth-century England.

A. The growing demand for luxury goods and services was a major factor in the coming of the Industrial Revolution.

B. The Industrial Revolution exploited the already existing demand for luxury goods and services.

C. Although the demand for luxury goods may have helped bring about the Industrial Revolution, the demand for luxury services did not.

D. There is no reason to believe that the Industrial Revolution was directly driven by a growing demand for luxury goods and services.

55. What does "it" refer to in the sentence "...it goes a long way toward explaining the coming of the Industrial Revolution." in the last paragraph but one?

A. This consumer demand

B. The consequences

C. Luxuries

D. The Industrial Revolution

4

Since World War II, there has been a clearly discernible trend, especially among the growing group of college students, toward early marriage. Many youths begin dating in the first stages of adolescence, "go steady" though high school, and marry before their formal education has been completed. In some quarters, there is much shaking of graying hair and clucking of middle-aged people over the ways of "wild youth." However, emotional maturity is no respecter of birthdays: it does not arrive automatically at twenty-one or twenty-five. Some achieve it surprisingly early, while others never do, even in three-score years and ten.

Many students are marrying as an escape, not only from an unsatisfying home life, but also from their own personal problems of isolation and loneliness. And it can almost be put down as true that any marriage entered into as an escape cannot prove entirely successful. The sad fact is that marriage seldom solves one's problems: more often, it accentuates them. Furthermore, it is doubtful whether the home as an institution is capable of carrying all that the young are seeking to put into it: one might say in theological terms, that they are giving up one idol only to worship another. Young people correctly understand that their parents are wrong in believing that "success" is the ultimate good, but they erroneously believe that they themselves have found the true center of life's meaning. Their expectations of marriage are essentially Utopian and therefore incapable of fulfillment. They want too much, and tragic disillusionment is often bound to follow

Shall we, then, join the chorus of "Misereres" over early marriages? One cannot generalize: all early marriages are not bad any more than all later ones are good. Satisfactory marriages are determined not by chronology, but by the emotional maturity of the partners. Therefore, each case must be judged on its own merits. If the early marriage is not an escape, if it is entered into with

relatively few illusions or false expectations, and if it is economically feasible, why not? Good marriages can be made from sixteen to sixty, and so can bad ones.

56. According to the article the trend toward early marriages ____________.

A. cannot be easily determined

B. is one that can be clearly seen

C. is an outgrowth of the moral laxity brought about by World War II

D. occurs after every major war

57. According to the article, successful marriages are determined by the emotional maturity of the partners and not by ____________.

A. financial considerations

B. parental consent

C. educational background

D. chronological age

58. The author suggests that many of today's early marriages are a result of____________.

A. escapism

B. theological dictum

C. lack of formal education

D. convenience

59. The author states that the home as an institution is _____________.

A. unworthy of worship

B. overrated

C. probably not capable of being what many young people expect it to be

D. incapable of being the basic unit of society

60. Which of the following statements would the author not agree with?

A. All early marriages are not bad.

B. Bad marriages can he made from sixteen to sixty.

C. Satisfactory marriages are determined by chronology.

D. All later marriages are not good.

MBA 联考英语模拟考试试题(阅读理解部分)6

Section III Reading Comprehension

Directions:

Read the following four passages. Answer the questions below each passage by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. (40 points)

1

Is language, like food, a basic human need without which a child in a critical period of life can be starved and damaged? Judging from the drastic experiment of Frederick Ⅱin the thirteenth century, it may be. Hoping to discover what language a child would speak if he heard no mother tongue, he told the nurses to keep silent.

All the infants died before the first year. But, clearly there was more than lack of language here. What was missing was good mothering. Without good mothering, in the first year of life especially, the capacity to survive is seriously affected.

Today no such lack exists as that ordered by Frederick. Nevertheless, some children are still backward in speaking. Most of the reason for this is that the mother is insensitive to the signals of the infant, whose brain is programmed to learn language rapidly. If these sensitive periods are neglected, the ideal time for acquiring skills passes and they might never be learned so easily again. A bird learns to sing and to fly rapidly at the right time, but the process is slow and once the critical stage has passed.

Experts suggest that speech stages are reached in a fixed sequence and at a constant age, but there are cases where speech has started late in a child who eventually turns out to be of high IQ. At twelve weeks baby smiles and makes vowel-like sounds; at twelve months he can speak simple words and understand simple commands; at eighteen months he has a vocabulary of three to fifty words. At three he knows about 1,000 words which he can put into sentences, and at four his language differs from that of his parents in style rather than grammar.

Recent evidence suggests that an infant is born with the capacity to speak. What is special about man’s brain, compared with that of the monkey, is the complex system which enables a child to connect the sight and feel of, say, a toy-bear with the sound pattern “toy-bear”. And even more incredible is the young brain’s ability to pick out an order in language from the mixture of sound around him, to analyze, to combine and recombine the parts of a language in new ways.

But speech has to be induced, and this depends on interaction between the mother and the child , where the mother recognizes the signals in the child’s babbling, grasping and smiling, and responds to them. Sensitivity to the child’s non-verbal signals is essential to the growth and development of language.

41. The purpose of Frederick Ⅱ’s experiment was to ________.

A. prove that children are born with the ability to speak

B. discover what language a child would speak without hearing any human speech

C. find out what role careful nursing would play in teaching child to speak

D. prove that a child be damaged without learning a language

42. What does the sentence “A bird learns to sing and to fly rapidly at the right time…”(L.4, para.3) mean?

A. A bird learns to sing and fly when at twelve weeks.

B. An infant learns to smile and make vowel-like sounds at twelve weeks.

C. A bird learns to sing and fly when it is old enough.

D. A bird learns to sing and fly fast at a certain stage.

43. The reason some children are backward in speaking is most probably that________.

A. they are incapable of learning language rapidly

B. they are exposed to too much language at once

C. their mothers respond inadequately to their attempts to speak

D. their mothers are not intelligent about a child

44. What is exceptionally remarkable about a child is that______.

A. he is born with the capacity to speak

B. he has a brain more complex than an animal’s

C. he can produce his own sentences

D. he owes his speech ability to good nursing

45. If a child starts to speak later than others, he will in future _______.

A. have a high IQ

B. be less intelligent

C. be insensitive to verbal signals

D. not necessarily be backward

2

Money spent on advertising is money spent as any I know of. It serves directly to assist a

rapid distribution of goods at reasonable prices. By drawing attention to new ideas it helps enormously to raise standards of living. By helping to increase demand it ensures an increased need for labor, and is therefore an effective way to fight unemployment. It lowers the costs of many services: without advertisements your daily newspaper would cost four times as much, the price of your television license would need to be doubled, and travel by bus or tube would cost 20 per cent more.

And perhaps most important of all, advertising provides a guarantee of reasonable value in the products and services you buy. Apart from the fact that twenty-seven Acts of parliament govern the terms of advertising, no regular advertiser dare promote a product that fails to live up to the promise of his advertisements. He might fool some people for a little while through misleading. He will not do so for long, for mercifully the public has the good sense not to buy the inferior article more than once. If you see an article consistently advertised, it is the surest proof I know that the article does what is claimed for it, and that it represents good value.

Advertising does more for the material benefit of the community than any other force I can think of. There is one more point I feel I ought to touch on. Recently I heard a well-known television personality declare that he was against advertising because it persuades rather than informs. He was drawing excessively fine distinctions. Of course advertising seeks to persuade.

If its message were confined merely to information—and that in itself would be difficult if not impossible to achieve, for even a detail such as the choice of the color of a shirt is subtle, perhaps that is what the well-known television personality wants.

46. By the first sentence of the text the author means that______

A. he is fairly familiar with the cost of advertising.

B. everybody knows well that advertising is money consuming.

C. advertising costs money like everything else.

D. it is worthwhile to spend money on advertising.

47. In the text, which of the following is NOT included in the advantages of advertising?

A. Securing greater fame.

B. Providing more jobs.

C. Enhancing living standards.

D. Reducing newspaper cost.

48. The author thinks that the well-known TV personality is ______

A. very precise in passing his judgment on advertising.

B. interested in nothing but the buyer’s attention.

C. correct in telling the difference between persuasion and information.

D. obviously partial in his views on advertising.

49. In the author’s opinion________

A. advertising can seldom bring material benefit to man by providing information.

B. advertising in forms people of new ideas rather than wins them over.

C. there is nothing wrong with advertising in persuading the buyer.

D. the buyer is not interested in getting information from an advertisement.

50. What is the author’s tone in this text?

A. Critical.

B. Appreciative.

C. Supportive.

D. Persuasive.

3

That experiences influence subsequent behaviour is evidence of an obvious but remarkable activity called remembering. Learning could not occur without the function popularly named memory. Constant practice has such an effect on memory as to lead to skillful performance on the piano, to recitation of a poem, and even to reading and understanding these words. So-called intelligent behaviour demands memory, remembering being a primary requirement for reasoning. The ability to solve any problem or even to recognize that a problem exists depends on memory. Typically, the decision to cross a street is based on remembering many earlier experiences.

Practice (or review) tends to build and maintain memory for a task or for any learned material.

Over a period of no practice what has been learned tends to be forgotten; and the adaptive consequences may not seem obvious. Yet, dramatic instances of sudden forgetting can be seen to be adaptive. In this sense, the ability to forget can be interpreted to have survived through a process of natural selection in animals. Indeed, when one’s memory of an emotionally painful experience leads to serious anxiety, forgetting may produce relief. Nevertheless, an evolutionary interpretation might make it difficult to understand how the commonly gradual process of forgetting survived natural selection.

In thinking about the evolution of memory together with all its possible aspects, it is helpful to consider what would happen if memories failed to fade. Forgetting clearly aids orientation in time, since old memories weaken and the new tend to stand out, providing clues for inferring duration. Without forgetting, adaptive ability would suffer; for example, learned behaviour that might have been correct a decade ago may no longer be. Cases are recorded of people who (by ordinary standards) forgot so little that their everyday activities were full of confusion. Thus forgetting seems to serve the survival of the individual and the species.

Another line of thought assumes a memory storage system of limited capacity that provides adaptive flexibility specifically through forgetting. In this view, continual adjustments are made between learning or memory storage (input ) and forgetting (output). Indeed, there is evidence that the rate at which individuals forget is directly related to how much they have learned. Such data offer gross support of contemporary models of memory that assume an input-output balance.

51. From the evolutionary point of view, __________

A. forgetting for lack of practice tends to be obviously inadaptive.

B. if a person gets very forgetful of a sudden he must be very adaptive.

C. the gradual process of forgetting is a n indication of an individual’s adaptability.

D. sudden forgetting may bring about adaptive consequences.

52. According to the text, if a person never forgot.

A. he would survive best.

B. he would have a lot of trouble.

C. his ability to learn would be enhanced.

D. the evolution of memory would stop.

53. Which is the proper explanation of the word “fade”(L.2, para.3)?

A. Disappear.

B. Decrease.

C. Demonstrate.

D. Declare.

54. From the last paragraph we know that _________

A. forgetfulness is a response to learning.

B. the memory storage system is an exactly balanced input-output system.

C. memory is a compensation for forgetting.

D. the capacity of a memory storage system is limited because forgetting occurs.

55. In this article, the author tries to interpret the function of _________

A. remembering.

B. forgetting.

C. adapting.

D. experiencing.

4

No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given. The traditional view supposes that the upper layer of the earth behaves as a liquid when it is subjected to small focus for long periods and that differences in temperature under oceans and continents are sufficient to produce movements in the upper layer of the earth with rising currents under the mid-ocean ridges and sinking currents under the continents. Theoretically, these movements would carry the continental plates along as though they were on a conveyor belt and would provide the forces needed to produce the split that occur along the ridge. This view may be correct; it has the advantage that the currents are driven by temperature differences that themselves depend on the position of the continents.

On the other hand, the theory is unconvincing because the movements do not normally occur along lines, and it certainly does not occur along lines broken by frequent changes in direction, as the ridge is. Also, it is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean. This plate is growing on both sides, and since there is no intermediate trench, the two ridges must be moving apart. An alternative theory is that the sinking part of the plate, which is denser than the hotter surroundings, pulls the rest of plate after it. Again it is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the American plate has a sinking part.

Another possibility is that the sinking plate cools the neighboring mantle and produces motion currents that move the plates. This last theory is attractive because it gives some hope of explaining the neighboring mantle and produces motion currents that move the plates. This last theory is attractive because it gives some hope of explaining the enclosed seas. These seas have a typical oceanic floor, except that the floor is overlaid by several kilometers of sediment. Their floors have probably been sinking for long periods. It seems possible that a sinking current of cooled material on the upper side of the plate might be the cause of such deep basins. The enclosed seas are an important feature of the earth’s surface and seriously require explanation.

56. Which of the following titles would best describe the content of the text?

A. Several Theories of Ocean Basin Formation.

B. The Traditional View of the Oceans.

C. Motions and Ocean Currents.

D. Temperature Differences Among the Oceans.

57.The author refers to a “conveyor belt”(L.6, Para.1) in order to _________

A. illustrate the effects of movements in the upper layer of the earth.

B. show how temperature differences depend on the positions of the continents.

C. describe the complicated motions made possible by the ocean currents.

D. account for the rising currents under min-ocean ridges.

58. According to the traditional view of the origin of the ocean basins, which of the following is

sufficient to move the continental plates?

A. Spreading of ocean trenches.

B. Movements of min-ocean ridges.

C. Sinking of ocean basins.

D. Differences in temperature underoceans and continents.

59. Which of the following, if it could be demonstrated, would most support the traditional view of ocean basin formation?

A. The upper mantle of the earth behaves as a dense solid.

B. Movements usually occur along lines.

C. Sinking plates cool the surface of the earth.

D. The rising motion currents keep exact pace with them.

60. Which of the following does the author seem to prefer?

A. The traditional view of the origin of the ocean basin is thoroughly wrong.

B. The temperature of the sinking plate is lower than its surrounding.

C. That the earth behaves as a liquid results in many great oceans.

D. Neither the African nor the American plate moves according to the alternative theory.

MBA英语历年真题及答案详解

2001年MBA英语真题及答案 考生须知 选择题的答案须用2B铅笔填涂在答题卡上，其它笔填涂的或做在试卷或其它类型答题卡上的答案无效。 其他题一律用蓝色或黑色钢笔或圆珠笔在答题纸上按规定要求作答，凡做在试卷上或未做在指定位置的答案无效。 交卷时，请配合监考人员验收，并请监考人员在准考证相应位置签字（作为考生交卷的凭据）。否则，所产生的一切后果由考生自负。 2001年全国攻读工商管理硕士研究生入学考试 英语试题 Section I Vocabulary (10 points) Directions: There are 20 incomplete sentences in this section. For each sentence there are four choices marked A, B, C and D. Choose the one that best completes the sentence and mark your answers on ANSWER SHEET 1. 1.The annual------of the department store starts tomorrow.

A stocking. B stocktaking C stockpiling. D stockholding. 2.Remember to ask for a ------of quality for these goods;otherwise they will not offer any maintenance. A warranty. B promise C certificate. D recejpt. 3.In many countries tobacco and medicine are government------. A control. B monopoly C business. D belongings. 4.Bank notes are not usually------into gold nowadays. A inverted. B revertible C convertible. D diverting. 5.I------you that the goods will be delivered next week.

2020高考理科数学第三次模拟考试试题

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山东省泰安市2020届高三数学第五次模拟考试（全国模拟）试题 本试卷共6页，22题。全卷满分150分。考试用时120分钟。 注意事项： 1．答题前，先将自己的姓名、考号等填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。 2．选择题的作答：选出每小题答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑。写在试题卷、草稿纸和答题卡上的非答题区域均无效。 3．填空题和解答题的作答：用签字笔直接写在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域均无效。 4．考试结束一定时间后，通过扫描二维码查看讲解试题的视频。 一、单项选择题(本题共8小题，每小题5分，共40分。在每小题给出的四个选项中，只有一项是符合题目要求的) 1.已知复数z 满足()14i z i z -?==，则 B.2 C. D.8 2.已知集合{}{} 20,10A x x x B x x x =-<=><或，则 A.B A ? B.A B ? C.A B R ?= D.A B ?=? 3.已知集合0.1 30.2log 0.2,log 0.3,10,a b c ===则 A.a b c << B.a c b << C.c a b << D.b c a << 4.()()3 11x x -+的展开式中，3 x 的系数为 A.2 B.2- C.3 D.3- 5.函数()()32sin 1 2x f x g x x π??-- ???=与的图象关于y 轴对称，则函数() f x 的部分图象大 致为

6．在3世纪中期，我国古代数学家刘徽在《九章算术注》中提出了割圆术：“割之弥细，所失弥少，割之又割，以至于不可割，则与圆合体，而无所失矣”．这可视为中国古代极限观念的佳作．割圆术可以视为将一个圆内接正n 边形等分成n 个等腰三角形(如图所示)，当n 变得很大时，等腰三角形的面积之 和近 似等于圆的面积．运用割圆术的思想，可得到sin3°的近似值为(π取近似值3.14) A.0.012 B.0.052 C.0.125 D.0.235 7.已知函数()( ) 3211f x x g x x =+++，若等差数列{}n a 的前n 项和为n S ，且 ()()220202020110,110=f a f a S -=--=，则 A.4040- B.0 C.2020 D.4040 8.在四面体2,90ABCD BC CD BD AB ABC ====∠=中，，二面角A BC D --的平面角为150°，则四面体ABCD 外接球的表面积为 A. 31 3 π B. 124 3 π C.31π D.124π 二、多项选择题(本题共4小题，每小题5分，共20分。在每小题给出的选项中，有多项符合题目要求。全部选对的得5分，部分选对的得3分，有选错的得0分) 9．在疫情防控阻击战之外，另一条战线也日渐清晰——恢 复经济正常运行．国人万众一心，众志成城，防控疫情、复 工复产，某企业对本企业1644名职工关于复工的态度进行 调查，调查结果如图所示，则下列说法正确的是 A ．0.384x = 疫情防控期间某企业复工职工调查