2013年GMAT考试最新逻辑推理试题训练四

2013年GMAT考试最新逻辑推理试题训练汇总

　　TEST D

　　Time 30 minutes 20 Questions

　　1. Contrary to the statements of labor leaders, the central economic problem facing America today is not the distribution of wealth. It is productivity. With the productivity of U.S. industry stagnant, or even declining slightly, the economic pie is no longer growing. Labor leaders, of course, point to what they consider an unfair distribution of the slices of pie to justify their demands for further increases in wages and benefits. And in the past, when the pie was still growing, management could afford to acquiesce. No longer. Until productivity resumes its growth, there can be no justification for further increases in the compensation of workers.

　　Which of the following statements by a labor leader focuses on the logical weakness in the argument above?

　　(A) Although the economic pie is no longer growing, the portion of the pie allocated to American workers remains unjustly small.

　　(B) If management fails to accommodate the demands of workers, labor leaders will be forced to call strikes that will cripple the operation of industry.

　　(C) Although productivity is stagnant, the U.S. population is growing, so that the absolute size of the economic pie continues to grow as well.

　　(D) As a labor leader, I can be concerned only with the needs of working people, not with the problems faced by management

　　(E) The stagnation of U.S. industry has been caused largely by factors―such as foreign competition―beyond the control of American workers.

　　2. Freud’s theories of the workings of the mind, while brilliant for their day, were formulated before most of this century’s great advances in neurophysiology and biochemistry. Today, we have a far deeper understanding of the biological components of thought, emotion, and behavior than was dreamed of eighty years ago. It would be foolish to continue parroting Freud’s psychological theories as if these advances had never occurred.

　　It can be inferred from the passage above that the author would be most likely to favor

　　(A) the abandonment of most of Freud’s theories

　　(B) a greater reliance on biological rather than psychological explanations of behavior

　　(C) a critical reexamination of Freud’s place in the history of psychology

　　(D) a reexamination of Freud’s theories in the light of contemporary biology

　　(E) increased financial support for studies in neurophysiology and biochemistry

　　3. To avoid a hostile takeover attempt, the board of directors of Wellco, Inc., a provider of life and health insurance, planned to take out large loans and use them to purchase a publishing company, a chocolate factory, and a nationwide chain of movie theaters. The directors anticipated that these purchase initially would plunge the corporation deep into debt, rendering it unattractive to those who wanted to take it over, but that steadily rising insurance rates would allow the company to pay off the debt within five years. Meanwhile, revenues from the three new businesses would enable the corporation as a whole to continue to meet its increased operating expenses. Ultimately, according o the directors’ plan, the diversification would strengthen the corporation by varying the sources and schedules of its annual revenues.

　　Which of the following, assuming that all are equally possible, would most enhance the chances of the plan’s success?

　　(A) A widespread drought decreases the availability of cacao beans, from which chocolate is manufacture, diving up chocolate prices worldwide.

　　(B) New government regulations require a 30 percent across-the-board rate rollback of all insurance companies, to begin immediately and to be completed within a five-year period.

　　(C) Congress enacts a statute, effective after six months, making it illegal for any parent not to carry health insurance coverage for his or her child.

　　(D) Large-screen televisions drop dramatically in price due to surprise alterations in trade barriers with Japan; movie theater attendance dwindles as a consequence.

　　(E) A new, inexpensive process is discovered for making paper pulp, and paper prices fall to 60 percent of their former level.

　　4. In 1981, for the first time in over two decades, the average scores of high school students on standardized math and English tests did not decline. During the same year, millions of American students enjoyed their first exposure to the new world of the microcomputer, whether in schools, video arcades, or other settings. The conclusion is clear: far from stultifying the intellectual capacities of students, exposure to computers can actually enhance them.

　　The most serious weakness of the argument above is its failure to

　　(A) discuss the underlying causes of the twenty-year decline in students’ test scores

　　(B) cite specific figures documenting the increases in test scores

　　(C) distinguish among the various types of computer being used by high school students

　　(D) define the intellectual capacities tested by the standardized math and English tests referred to

　　(E) explain exactly how high school students’ abilities on math and English tests could have been enhanced by exposure to computers

　　Questions 5-6 are based on the following.

　　Although its purpose is laudable, the exclusionary rule, which forbids a court to consider evidence seized in violation of the defendant’s constitutional rights, has unduly hampered law-enforcement efforts. Even when the rights violation was a minor or purely technical one, turning on a detail of procedure rather than on the abrogation of some fundamental liberty, and even when it has been clear that the police officers were acting in good faith, the evidence obtained has been considered tainted under this rule and may not even by introduced. In consequence, defendants who were undoubtedly guilty have been set free, perhaps to steal, rape, or murder again.

　　5. The author of the passage above assumes all of the following EXCEPT:

　　(A) The constitutional rights of criminal defendants should be protected.

　　(B) Most cases in which the exclusionary rule has been invoked have involved purely technical violations of constitutional principles.

　　(C) The number of cases whose outcome has been affected by the exclusionary rule is significant.

　　(D) Some of the defendants set free under the exclusionary rule have been guilty of serious criminal offenses.

　　(E) Merely technical violations of the rules concerning evidence should be treated differently from deliberate assaults upon human rights.

　　6. It can be inferred from the passage that the author would most likely endorse which of the following proposals?

　　(A) Change of the exclusionary rule to admit evidence obtained by police officers acting in good faith

　　(B) A constitutional amendment curtailing some of the protections traditionally afforded those accused of a crime

　　(C) A statute limiting the application of the exclusionary rule to cases involving minor criminal offenses

　　(D) Change of the exclusionary rule to allow any evidence, no matter how obtained, to be introduced in court

　　(E) A constitutional amendment allowing police officers to obtain vital evidence by any means necessary when in pursuit of a known criminal

　　7. The postal service is badly mismanaged. Forty years ago, first-class letter delivery cost only three cents. Since then, the price has increased nearly tenfold, with an actual decrease in the speed and reliability of service.

　　Each of the following statements, if true, would tend to weaken the argument above EXCEPT:

　　(A) The volume of mail handled by the postal service has increased dramatically over the last forty years.

　　(B) Unprecedented increases in the cost of fuel for trucks and planes have put severe upward pressures on postal delivery costs.

　　(C) Private delivery services usually charge more than does the postal service for comparable delivery charges.

　　(D) The average delivery time for a first-class letter four decades ago was actually slightly longer than it is today.

　　(E) The average level of consumer prices overall has increased more than 300 percent over the last forty years.

　　8. When the government of a nation announced recently that a leader of the nation’s political opposition had died of a mysterious illness in prison, few seasoned observers of the regime were surprised. As the police captain in an old movie remarked when asked about the condition of a prisoner, “We’re trying to decide whether he committed suicide or died trying to escape.”

　　The statements above invite which of the following conclusions?

　　(A) The opposition leader was probably killed trying to escape from prison.

　　(B) The opposition leader may not be dead at all.

　　(C) It is unlikely that the head of the regime knows the true cause of the opposition leader’s death.

　　(D) The opposition leader probably killed himself.

　　(E) The regime very likely was responsible for the death of the opposition leader.

　　Questions 9-10 are based on the following.

　　In the industrialized nations, the last century has witnessed a shortening of the average workday from twelve hours or longer to less than eight hours. Mindful of this enormous increase in leisure time over the past century, many people assume that the same trend has obtained throughout history, and that, therefore, prehistoric humans must have labored incessantly for their very survival.

　　We cannot, of course, directly test this assumption. However, a study of primitive peoples of today suggests a different conclusion. The Mbuti of central Africa, for instance, spend only a few hours each day in hunting, gathering, and tending to other economic necessities. The rest of their time is spent as they choose. The implication is that the short workday is not peculiar to industrialized societies. Rather, both the extended workday of 1880 and the shorter workday of today are products of different stages of the continuing process of industrialization.

　　9. Which of the following inferences about industrialization is best supported by the passage above?

　　(A) People in advanced industrialized societies have more leisure time than those in nonindustrialized societies.

　　(B) An average workday of twelve hours or more is peculiar to economies in the early stages of industrialization.

　　(C) Industrialization involves a trade-off between tedious, monotonous jobs and the benefits of increased leisure.

　　(D) It is likely that the extended workday of an industrializing country will eventually be shortened.

　　(E) As industrialization progresses, people tend to look for self-fulfillment in leisure rather than work.

　　10. Which of the following, if true, would most greatly strengthen the argument made in the passage above?

　　(A) In recent decades, the economy of the Mbuti has been markedly affected by the encroachment of modern civilization.

　　(B) The life-style of the Mbuti is similar to that of prehistoric humans.

　　(C) The Mbuti have no words in their language to express the distinction between work activities and leisure activities.

　　(D) The workday of a European peasant in medieval times averaged between eleven and fifteen hours.

　　(E) The members of the Shaklik tribe in central Asia have an average workday of ten to twelve hours.

　　11. Gloria: Those who advocate tuition tax credits for parents whose children attend private schools maintain that people making no use of a government service should not be forced to pay for it. Yet those who choose to buy bottled water rather than drink water from the local supply are not therefore exempt from paying taxes to maintain the local water supply.

　　Roger: Your argument is illogical. Children are required by law to attend school. Since school attendance is a matter not of choice, but of legal requirement, it is unfair for the government to force some parents to pay for it twice.

　　Which of the following responses by Gloria would best refute Roger’s charge that her argument is illogical?

　　(A) Although drinking water is not required by law, it is necessary for all people, and therefore my analogy is appropriate.

　　(B) Those who can afford the tuition at a high-priced private school can well bear the same tax burden as those whose children attend public schools.

　　(C) If tuition tax credits are granted, the tax burden on parents who choose public schools will rise to an intolerable level.

　　(D) The law does not say that parents must send their children to private schools, only that the children must attend some kind of school, whether public or private.

　　(E) Both bottled water and private schools are luxury items, and it is unfair that some citizens should be able to afford them while others cannot.

　　Questions 12-13 are based on the following.

　　Since the passage of the state’s Clean Air Act ten years ago, the level of industrial pollutants in the air has fallen by an average of 18 percent. This suggests that the restrictions on industry embodied in the act have worked effectively. However, during the same period the state has also suffered through a period of economic decline. The number of businesses in the state has fallen by 10 percent, and the number of workers employed has fallen by 12 percent. It is probable that the business decline, rather than the regulations in the act, is responsible for at least half of the decline in the pollution.

　　12. Which of following is an assumption made in the passage above?

　　(A) Most businesses in the state have obeyed the regulations embodied in the Clean Air Act.

　　(B) The economic decline of the state can be attributed, in part, to the effects of the Clean Air Act.

　　(C) The amount of air pollution in a given area is likely to be proportional to the number of businesses and workers active in that area.

　　(D) The restrictions on business activity in other states are less stringent than are those embodied in the Clean Air Act.

　　(E) The Clean Air Act has been only very slightly successful in achieving the goal of reduced air pollution.

　　13. Which of the following, if true, would most seriously weaken the conclusion drawn in the passage above?

　　(A) During the last ten years, economic conditions in the nation as a whole have been worse than those within the state.

　　(B) Amendments to the Clean Air Act that were enacted six years ago have substantially strengthened its restrictions on industrial air pollution.

　　(C) Of the businesses that ceased operating in the state during the last ten years, only 5 percent were engaged in air-polluting industries.

　　(D) Several large corporations left the state during the last ten years partly in order to avoid compliance with the Clean Air Act.

　　(E) Due to its small budget, the state office charged with enforcement of the Clean Air Act has prosecuted only two violators of the law since its passage.

　　14. A nutritionist studying the effects of massive doses of vitamin C found that of a group of 600 people who regularly took 1,500 mg of vitamin C daily for a year, fewer than 9 percent suffered serious cases of flu; of a group of 600 people who took 250 mg of vitamin C (the standard recommended daily allowance) daily for a year, 34 percent suffered at least one serious case of flu; and of a group of 600 people who took no vitamin C for a year (other than that found in the foods in a balanced diet), 32 percent suffered at least one serious case of flu.

　　Which of the following hypotheses is best supported by the evidence above?

　　(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.

　　(B) Vitamin C is helpful in preventing disease.

　　(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent.

　　(D) Massive doses of vitamin C can help to prevent serious case of flu.

　　(E) A balanced diet contains less than 250 mg of vitamin C.

　　15. Susan: Those who oppose experimentation on animals do not properly value the preservation of human life. Although animal suffering is unfortunate, it is justifiable if it can lead to cures for human ailments.

　　Melvin: But much animal experimentation involves testing of ordinary consumer products such as soaps, dyes, and cosmetics.

　　Susan: These experiments are justifiable on the same grounds, since cleanliness, convenience, and beauty are worthwhile human values deserving of support.

　　Which of the following is the best statement of the logical flaw in Susan’s argument?

　　(A) Her claim that animal experimentation is justifiable if it supports human values contradicts her claim that such experimentation is justifiable only if it leads to cures for human ailments.

　　(B) She places a higher value on human cleanliness, convenience, and beauty than she does on the preservation of animal life.

　　(C) She uses the word “value” in two different senses.

　　(D) She assumes that all ordinary consumer products aid in the preservation of human life.

　　(E) She fails to show how mere support for human values actually preserves human lives.

　　16. Which of the following best completes the passage below?As long as savings deposits are insured by the government, depositors will have no incentive to evaluate the financial strength of a savings bank. Yield alone will influence their choice of bank. To attract deposits, banks will be forced to offer the highest possible interest rates. And since paying higher rates inevitably strains the financial strength of a bank, ______

　　(A) the government will be forced o impose limitations on interest rates

　　(B) deposit insurance will ultimately lead to the financial weakening of many banks

　　(C) savers will be forced to choose between deposit insurance and higher interest rates

　　(D) deposits will tend to go to the banks with the greatest financial strength

　　(E) bank profits will tend to rise to ever-higher levels

　　17. Every painting hanging in the Hoular Gallery is by a French painter. No painting in the Hoular Gallery is by a Vorticist. Only Vorticists use acrylic monochromes in their works.

　　If the information above is true, which of the following must also be true?

　　(A) No French painters are Vorticists.

　　(B) All Vorticists use acrylic monochromes in their works.

　　(C) Some French painters do not use acrylic monochromes in their works.

　　(D) No French painters use acrylic monochromes in their works.

　　(E) All French painters who use acrylics use acrylic monochromes in their works.

　　18. We commonly speak of aesthetic judgments as subjective, and in the short term they are, since critics often disagree about the value of a particular contemporary work of art. But over time, the subjective element disappears. When works of art have continued to delight audiences for centuries, as have the paintings of Michelangelo, the music of Bach, and the plays of Shakespeare, we can objectively call them great.

　　The statements above best support which of the following conclusions?

　　(A) When Michelangelo, Bach, and Shakespeare were alive, critics disagreed about the value of their work.

　　(B) The value of a contemporary work of art cannot be objectively measured.

　　(C) The reputation of a work of art often fluctuates greatly from one generation to the next.

　　(D) The mere fact that a work of art has endured for centuries does not establish its greatness.

　　(E) If critics agree about the value of a particular cotemporary work of art, then the work can objectively be called great.

　　19. Since the 55-mile-per-hour speed limit was mandated on our highways, both money and human lives have been saved.

　　All of the following, if true, would strengthen the claim above EXCEPT:

　　(A) Most highway users find that travel times are not appreciably lengthened by the 55-mile-per-hour speed limit.

　　(B) Highway driving at 55 miles per hour or less is more fuel-efficient than high-speed driving.

　　(C) Nearly all highway safety experts agree that more accidents occur at speeds over 55 miles per hour than at lower speeds.

　　(D) The percentage of fatalities occurring in highway accidents at speeds greater than 55 miles per hour is higher than that for low-speed accidents.

　　(E) Automobiles last longer and require fewer repairs when driven at consistently lower speeds.

　　20. The city council will certainly vote to approve the new downtown redevelopment plan, despite the objections of environmentalists. After all, most of the campaign contributions received by members of the city council come from real estate development firms, which stand to benefit from the plan.

　　Which of the following statements, if true, would most weaken the argument above?

　　(A) Several members of the city council receive sizable campaign contributions from environmental lobbying groups.

　　(B) Members of the city council are required to report the size and source of each campaign contribution they receive.

　　(C) Not every real estate development firm in the city will be able to participate in, and profit from, the new downtown redevelopment plan.

　　(D) The members of the city council have often voted in ways that are opposed to the interests of their campaign contributors

　　(E) Some environmentalists have stated that the new downtown redevelopment plan might be environmentally sound if certain minor modifications are made.

　　答案:

　　1. A2. D3. C4. E5. B

　　6. A7. E8. E9. D10. B

　　11. A12. C13. C14. D15. E

　　16. B17. C18. B19. A20. D