2011年GMAT逻辑推理全真模拟试题

1、2011年gmat逻辑推理全真模拟试题来源：我要试题网 题目一总分一、单选题 共 30题，第小题 3 分1、the town of stavanger， norway， was quiet and peaceful until the early 1960's， when stavanger became norway's center for offshore oil exploration. between then and now， violent crime and vandalism in stavanger have greatly increased. cearl

2、y， these social problems are among the results of stavanger's oil boom. which of the following ， if it occurred between the early 1960's and now， give the strongest support to the argument above？（a） the people of stavanger rarely regret that their town was chosen to be norway's center fo

3、r offshore oil exploration.（b） norwegian sociologists expressed grave concern about the increase in violent crime and vandalism in stavanger.（c） violent crime and vandalism have remained low in norwegian towns that had no oil boom.（d） nonviolent crime， drug addiction， and divorce in stavanger increa

4、sed approximately as much as violent crime and vandalism did.（e） the oil boom necessitated the building of wider roads for the increased traffic in stavanger.2、in the aftermath of a worldwide stock-market crash， country t claimed that the severity of the stock-market crash it experienced resulted fr

5、om the accelerated process of denationalization many of its industries underwent shortly before the crash.which of the following， if it could be carried out， would be most useful in an evaluation of country t's assessment of the causes of the severity of its stock-market crash？（a） calculating th

6、e average loss experienced by individual traders in country t during the crash（b） using economic theory to predict the most likely date of the next crash in country t（c） comparing the total number of shares sold during the worst days of the crash in country t to the total number of shares sold in co

7、untry t just prior to the crash.（d） comparing the severity of the crash in country t to the severity of the crash in countries otherwise economically similar to country t that have not experienced recent denationalization（e） comparing the long-term effects of the crash on the purchasing power of the

8、 currency of country t to the immediate， more severe short-term effects of the crash on the purchasing power of the currency of country t.3、in the 1960's . long-term studies of primate behavior often used as subjects tamarins， small monkeys that were thought ideal because they require only small

9、 cages， bread frequently， and grow quickly. field studies were not used because they were costly and difficult. tamarins were kept caged in male-female pairs， because otherwise， serious fights erupted between unrelated females. on the basis of the fact that breeding occurred， tamatins were viewed as

10、 monogamous.the view taken by the researchers concerning the monogamy of tamarins depended on a questionable assumption.which of the following could have served as that assumption？（a） the suppression of fighting between related females serves to protect their common genetic inheritance.（b） adult mal

11、e tamatins contribute to the care of tamarin infants.（c） the social system of tamarins requires monogamous pairing.（d） male tamarin monkeys do not display aggressive behavior in the wild.（e） the way the tamarins were kept in cages did not affect their mating behavior.4、twenty percent of all energy c

12、onsumed in the united states is consumed by home appliances. if appliances that are twice as energy- efficient as those currently available are produced， this figure will eventually be reduced to about ten percent.the argument above requires which of the following assumptions？（a） home-appliance usag

13、e would not increase along with the energy efficiency of the appliances.（b） it would not be expensive to produce home appliances that are energyefficient.（c） home-appliance manufacturers now have the technology to produce appliances that are twice as energy-efficient as those currently available.（d）

14、 the cost of energy to the consumer world rise with increases in the energy efficiency of home appliances.（e） the percentage of energy consumed by home appliances will increase if existing appliances are not replaced by more energy-efficient models5、inspection system x and inspection system y， thoug

15、h based on different principles， each detect all product flaws but they each also erroneously reject three percent of flawless products.since false rejections are very costly， money will by saved by installing both systems， instead of either one or the other， and rejecting only products found flawed

16、 by both.（a） the three percent of flawless products that system x rejects are not all the same products， piece for piece， that system y erroneously rejects.（b） it is less costly to accept a flawed product than to rejects a flawless one.（c） in their price range. system x and y are the least error-pro

17、ne inspection systems on the market.（d）whichever system performs the second inspection needs to inspect only products not rejected by the first system.（e） any way of detecting flaw， other than by using either system x or systemy， requires complete disassembly of the products.6、statistics over four c

18、onsecutive years showed that four percent more automobile accidents happened in california during the week following the switch to daylight saving time and during the week following the switch back to standard time than occurred the week before each event. these statistics show that these time chang

19、es adversely affect the alertness of california divers.the conclusion in the argument above is based on which of the following assumptions？（a） drivers in california as well as those in the rest of the united states have similar driving patterns.（b） the observed increases in accident rates are due al

20、most entirely to an increase in the number of minor accidents.（c） four years is not a sufficiently long period of time over which to judge the phenomenon described.（d） there are no other factors such as school vacations or holiday celebration that cause accident rates to rise during these weeks.（e）

21、a time change at any other time of years would not produce a similar increase in accident rates.7、although the ratio of physicians to total population is about the same in the united states and canada， the united states has 33 percent more surgeons per capita. clearly， this is the reason people in t

22、he united states undergo 40 percent more operations per capita than do canadians.the explanation given above rests on an assumption that（a） patients in the united states do not have a greater need for surgery than do patients in canada（b） the population of the united states is not larger than that o

23、f canada（c） united states patients sometimes travel to canada for certain kinds of surgery（d） general practitioners in the united states do not as a rule examine a who is a candidate for surgery before sending the patient to a surgeon.（e） there are no unnecessary surgical operations performed in can

24、ada.8、canadians now increasingly engage in “out-shopping，” which is shopping across the national border， where prices are lower. prices are lower outside of canada in large part because the goods-and-services tax that pays for canadian social services is not applied. which one of the following is be

25、st supported on the basis of the information above？（a）if the upward trend in out-shopping continues at a significant level and the amounts paid by the government for canadian social services are maintained， the canadian goods-and-services tax will be assessed at a higher rate.（b）if canada imposes a

26、substantial tariff on the goods bought across the border， a reciprocal tariff on cross-border shopping in the other direction will be imposed， thereby harming canadian businesses.（c）the amounts the canadian government pays out to those who provide social services to canadians are increasing.（d）the s

27、ame brands of goods are available to canadian shoppers across the border as are available in canada.（e）out-shopping purchases are subject to canadian taxes when the purchaser crosses the border to bring them into canada.9、left-handed persons suffer more frequently than do right-handed persons from c

28、ertain immune disorders， such as allergies. left-handers tend to have an advantage over the right-handed majority， however， on tasks controlled by the right hemisphere of the brain， and mathematical reasoning is strongly under the influence of the right hemisphere in most people.if the information a

29、bove is true， it best supports which of the following hypotheses？（a） most people who suffer from allergies or other such immune disorders are left-handed rather than right-handed.（b） most left-handed mathematicians suffer from some kind of allergy.（c） there are proportionally more left-handers among

30、 people whose ability to reason mathematically is above average than there are among people with poor mathematical reasoning ability.（d） if a left-handed person suffers from an allergy， that person will probably be good at mathematics.（e） there are proportionally more people who suffer from immune d

31、isorders such as allergies than there are people who are left-handed or people whose mathematical reasoning ability is unusually good.10、mud from a lake on an uninhabited wooded island in northern lake superior contains toxic chemicals， including toxaphene， a banned pesticide for cotton that previou

32、sly was manufactured and used， not in nearby regions of canada or the northern united states， but in the southern united states. no dumping has occurred on the island. the island lake is sufficiently elevated that water from lake superior does not reach it.the statements above， if true， most strongl

33、y support which of the following hypotheses？（a） the waters of the island lake are more severely polluted than those of lake superior.（b） the toxaphene was carried to the island in the atmosphere by winds.（c） banning chemicals such as toxaphene does not aid the natural environment11、to prevent some c

34、onflicts of interest， congress could prohibit high-level government officials from accepting positions as lobbyists for three years after such officials leave government service. one such official concluded， however， that such a prohibition would be unfortunate because it would prevent high-level go

35、vernment officials from earning a livelihood for three years.the official's conclusion logically depends on which of the following assumptions？（a） laws should not restrict the behavior of former government officials.（b） lobbyists are typically people who have previously been high-level governmen

36、t officials.（c） low-level government officials do not often become lobbyists when they leave government service.（d） high-level government officials who leave government service are capable of earning a livelihood only as lobbyists. （e） high-level government officials who leave government service are

37、 currently permitted to act as lobbyists for only three years.12、a recent report determined that although only three percent of drivers on maryland highways equipped their vehicles with radar detectors， thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with th

38、em. clearly， drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.the conclusion drawn above depends on which of the following assumptions？（a） drivers who equip their vehicles with radar detectors are less likely to be

39、ticketed for exceeding the speed limit than are drivers who do not.（b） drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.（c） the number of vehicles that were ticketed for exceeding the speed limit was grea

40、ter than the number of vehicles that were equipped with radar detectors.（d） many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.（e） drivers on maryland highways exceeded the speed limit more often than did driver

41、s on other state highways not covered in the report.13、researchers have found that when very overweight people， who tend to have relatively low metabolic rates， lose weight primarily through dieting， their metabolisms generally remain unchanged. they will thus burn significantly fewer calories at th

42、e new weight than do people whose weight is normally at that level. such newly thin persons will， therefore， ultimately regain weight until their body size again matches their metabolic rate.the conclusion of the argument above depends on which of the following assumptions？（a） relatively few very ov

43、erweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.（b） the metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very

44、overweight.（c） the amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.（d） researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accele

45、rated by means of chemical agents.（e） because of the constancy of their metabolic rates， people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.14、“fast cycle time” is a strategy of designing a manufacturing organization to eliminate bottlenecks and

46、 delays in production. not only does it speed up production， but it also assures quality. the reason is that the bottlenecks and delays cannot be eliminated unless all work is done right the first time.the claim about quality made above rests on a questionable presupposition that（a）any flaw in work

47、on a product would cause a bottleneck or delay and so would be prevented from occurring on a “fast cycle” production line（b） the strategy of “fast cycle time” would require fundamental rethinking of product design（c） the primary goal of the organization is to produce a product of unexcelled quality，

48、 rather than to generate profits for stockholders（d） “fast cycle time” could be achieved by shaving time off each of the component processes in production cycle（e） “fast cycle time” is a concept in business strategy that has not yet been put into practice in a factory15、blood banks will shortly star

49、t to screen all donors for nanb hepatitis.although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors， they will still miss two-thirds of donors carrying nanb hepatitis. therefore， about 10 percent of actual donors will still supply nanb-contaminated

50、blood.the argument above depends on which of the following assumptions？（a）donors carrying nanb hepatitis do not，in a large percentage of cases， carry other infections for which reliable screening tests are routinely performed.（b） donors carrying nanb hepatitis do not，in a large percentage of cases，

51、develop the disease themselves at any point.（c） the estimate of the number of donors who would be disqualified by tests for nanb hepatitis is an underestimate.（d） the incidence of nanb hepatitis is lower among the potential blood donors than it is in the population at large.（e） the donors who will s

52、till supply nanb-contaminated blood will donate blood at the average frequency for all donors.16、a researcher discovered that people who have low levels of immune-system activity tend to score much lower on tests of mental health than do people with normal or high immune-system activity. the researc

53、her concluded from this experiment that the immune system protects against mental illness as well as against physical disease.the researcher's conclusion depends on which of the following assumptions？（a） high immune-system activity protects against mental illness better than normal immune-system

54、 activity does.（b） mental illness is similar to physical disease in its effects on body system.（c） people with high immune-system activity cannot develop mental illness.（d） mental illness does not cause people's immune-system activity to decrease.（e） psychological treatment of mental illness is

55、not as effective as is medical treatment.17、the program to control the entry of illegal drugs into the country was a failure in 1987. if the program had been successful， the wholesale price of most illegal drugs would not have dropped substantially in 1987.the argument in the passage depends on whic

56、h of the following assumptions？（a） the supply of illegal drugs dropped substantially in 1987.（b） the price paid for most illegal drugs by the average consumer did not drop substantially in 1987.（c） domestic production of illegal drugs increased at a higher rate than did the entry of such drugs into

57、the country.    （d） the wholesale price of a few illegal drugs increased substantially in 1987.（e） a drop in demand for most illegal drugs in 1987 was not the sole cause of the drop in their wholesale price.18、installing scrubbers in smokestacks and switching to cleaner-burning fuel a

58、re the two methods available to northern power for reducing harmful emissions from its plants. scrubbers will reduce harmful emissions more than cleaner-burning fuels will. therefore，by installing scrubbers， northern power will be doing the most that can be done to reduce harmful emissions from its plants. which of the following is an assumption on which the argument depends？（a） switching to cleaner-burning fuel will not be more expensive than installing scrubbers.（b） northern power ca