GRE-39及答案解析.doc

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1、GRE-39及答案解析(总分：46.04，做题时间：90 分钟)一、BSECTION 3/B(总题数：24，分数：30.00)1.Chriss interest in his action-figure collection began to _ as he completed elementary school and became a preteen; he was growing up.（分数：1.00）A.(A) improveB.(B) dilateC.(C) existD.(D) waneE.(E) thrive2.I put a bandage on the childs fin

2、ger to _ the flow of blood from his cut.（分数：1.00）A.(A) irrigateB.(B) exposeC.(C) stanchD.(D) pluckE.(E) obviate3.INUNDATE : OVERWHELM :（分数：1.00）A.(A) lambaste : beatB.(B) extricate : tangleC.(C) extol : criticizeD.(D) redo : expungeE.(E) fathom : declare4.PROPAGATE : MULTIPLY :（分数：1.00）A.(A) dilate

3、: decreaseB.(B) discern : includeC.(C) expect : shiftD.(D) precipitate : happenE.(E) deride : excel5.DUBIOUS:（分数：1.00）A.(A) inadvertentB.(B) obliviousC.(C) intentionalD.(D) skepticalE.(E) certain6.IRASCIBLE : ANGERED :（分数：1.00）A.(A) exigent : ignobleB.(B) docile : trainedC.(C) exceptional : uncommon

4、D.(D) ethical : mistreatedE.(E) estimable : offended7.PILOT : JET :（分数：1.00）A.(A) actor : stateB.(B) gate : prisonC.(C) physician : healthD.(D) fence : landscapeE.(E) conductor : orchestra8.VENERABLE:（分数：1.00）A.(A) agedB.(B) esteemedC.(C) forgottenD.(D) disreputableE.(E) noble9.Both discipline-based

5、 and affection-based parenting methods stand the chance of undermining their own assumptions: Overreliance on external discipline through punishment may (i) 1 the childs independent moral development, while an overly (ii) 2 parenting style may provide the child with the false impression that no one

6、elses needs matter. Blank(i) Blank(ii) occlude obstreperousanticipate indulgentrepudiate lachrymose（分数：1.00）填空项 1:_10.QUOTIDIAN:（分数：1.00）A.(A) circadianB.(B) sporadicC.(C) starkD.(D) adverseE.(E) exotic11.SQUELCH:（分数：1.00）A.(A) pilferB.(B) amplifyC.(C) gleamD.(D) suppressE.(E) quenchDespite the ubiq

7、uity of computer technology, most people are unaware thatLine computers exist in two mutually exclusive, distinct categories: analog and digital.We are most familiar with digital computers, such as laptops. On the one hand,digital computers process information using a binary number system that allow

8、s(5) them to calculate numbers in an accurate and exact manner. Analog computers,on the other hand, do not calculate per se; they measure and respond to acontinuously changing input.Simple analog computers, called astrolabes, were first developed by theGreeks to solve problems in astronomy. The devi

9、ces proved very popular and(10) soon spread throughout the Roman world. By the 10th century, Muslim scholarshad developed the astrolabe into a sophisticated mechanical device capable ofcalculating solutions to problems not only in astronomy, but also in astrology,navigation, surveying, and timekeepi

10、ng.Modern scientific opinion was that the ancient Greeks had been(15) technologically unable to produce a similarly sophisticated computer, until adiscovery was made just over a century ago. In 1900, divers discovered the wreckof a merchant ship, possibly dating back to 150 BCE, off the coast of the

11、 Greekisland Antikythera. In the wreckage, they found the remains of a complex deviceapparently a thousand years ahead of its time.(20) Made of metal, this device, known as the Antikythera mechanism, isapproximately the size of a shoebox. At the time of its discovery, it was in terribleshape, having

12、 been underwater for so long. Its pieces had merged into a brokenmass and experts could discern only that it had something to do with astronomy.Thanks to a combination of advanced imaging methods and X-ray computer(25) tomography, however, scientists have since discovered much more.Originally, the m

13、echanism had at least 30 bronze gears with as many as 225hand-cut triangular teeth. It had three main dials, one on the front and two on theback, respectively marking the astronomical divisions of the Egyptian calendar,the Metonic cycle, and the Saros cycle. Each dial had subdials for greater(30) sp

14、ecificity. For example, the front dial contained a smaller dial that could beadjusted to account for leap years. There were also hands and gearing to accountfor the movements of the planets.While the workings of the device are now fairly well understood, researchersare still puzzled by the reason it

15、 was made. Some postulate that it, like later(35) astrolabes, was used to create astrological charts, or to set feast days, or even toadjust the lunar and solar calendars. Others have thought it was a curiosity madesolely for display. The devices relatively small size and the inclusion of a 3,000cha

16、racter “users manual“ suggest that the mechanism was created to be portableand functional, but scientists are no closer to knowing for sure and can only(40) wonder at the purpose of its superb design.（分数：6.00）(1).Which of the following would weaken the authors argument that the Antikythera mechanism

17、 was a thousand years ahead of its time?（分数：1.00）A.(A) Items discovered on the Antikythera shipwreck were found to date back to 500 BCE.B.(B) Similarly complex astrolabes were recently found at a series of archeological sites dating between 100 and 500 CE.C.(C) Complex machines involving pulleys and

18、 ropes were found at archeological sites on the Greek island of Antikythera.D.(D) At the time of the Antikythera shipwreck, the island of Rhodes was famous for its collection of scientific devices.E.(E) Ancient Romans were famous for their acquisitions of Greek art and architecture.(2).The author me

19、ntions that the front dial of the Antikythera mechanism contained a smaller, adjustable dial (line 30) most probably in order to（分数：1.00）A.(A) illustrate the complexity of the mechanismB.(B) describe exactly how the mechanism workedC.(C) emphasize the importance of leap years in the study of astrono

20、myD.(D) argue that the mechanism was used only for very specific tasksE.(E) allow readers to imagine what the device looked like(3).The passages statement that, by the 10th century, Muslim scholars had developed the astrolabe into a sophisticated mechanical device would justify which of the followin

21、g conclusions?（分数：1.00）A.(A) Muslim scholars were unaware of other scientific measuring devices.B.(B) Muslim scholars developed a kind of technology that had never been known before.C.(C) There was no need for sophisticated mechanical devices such as the astrolabe before the 10th century.D.(D) The a

22、strolabes sophistication allowed for more exploration of the physical world.E.(E) Muslim scholars had a need to solve complex problems in astronomy, navigation, surveying, and timekeeping.(4).The passage supplies information for answering which of the following questions?（分数：1.00）A.(A) Where was the

23、 mechanism made?B.(B) What was the primary purpose of the Antikythera mechanism?C.(C) How did ancient scientists know how to use the Antikythera mechanism?D.(D) Precisely how many gears did the mechanism have?E.(E) What is the purpose of computer tomography?(5).The authors argument is developed prim

24、arily by the use of（分数：1.00）A.(A) an attack on the misuse of scientific discoveries by modern film directorsB.(B) a critique of technical developments in science fiction movie special effectsC.(C) an example of how science fiction directors distort science to increase dramatic effectD.(D) an analogy

25、 between science fiction movie special effect and science education in schoolsE.(E) a warning against an overreliance on films to teach science to youngsters(6).According to the passage, which of the following is true about explosions in space? I. A lack of matter in space allows the energy from an

26、explosion to travel very quickly. II. An explosion in space would be visible as a flash of bright light. III. Shock waves created by an explosion in space would cause an audible “boom.“（分数：1.00）A.(A) I onlyB.(B) II onlyC.(C) I and II onlyD.(D) II and HI onlyE.(E) I, II, and III12.France and Spain, w

27、hile actually very _ , share a common reputation for a more _ way of life than that experienced by the average harried American.（分数：1.00）A.(A) similar tranquilB.(B) genteel guardedC.(C) informal substantialD.(D) dissimilar sereneE.(E) diverse traditional13.FECKLESS : PURPOSE :（分数：1.00）A.(A) constant

28、 : habitB.(B) eccentric : conventionC.(C) inherent : attributeD.(D) innate : possessionE.(E) inimical : harm14.INSIPID:（分数：1.00）A.(A) vivaciousB.(B) articulateC.(C) adamantD.(D) dullE.(E) indecisive15.The intern, while _ , proved too unskilled to be permitted to work on his own _ project.（分数：1.00）A.

29、(A) reckless unsupervisedB.(B) enthusiastic dedicatedC.(C) competent autonomousD.(D) excitable subsidiaryE.(E) responsible obscure16.People traveled hundreds of miles to be in the presence of the _ and listen to his _ words.（分数：1.00）A.(A) scholar ludicrousB.(B) dissident calmingC.(C) extrovert fabri

30、catedD.(D) miscreant joyousE.(E) sage astuteThe polar lights known as auroras are produced when charged subatomicLine particles, such as protons and electrons flowing from the sun through Earthsmagnetosphere, collide with atoms and molecules in Earths upper atmosphere.For reasons not entirely unders

31、tood, magnetic storms, called substorms,(5) occasionally occur where the flow of particles greatly increases and theinterplanetary magnetic field becomes much stronger. These substorms are frequentlyvisible on the Earth because they increase the intensity of the polar lights.Recently, five identical

32、 probes were blasted into orbit in a $200 million USproject known as the THEMIS mission. Scientists hope the probes will be able to(10) investigate a number of mysteries about the nature of the substorm instabilities,including when and where substorms begin, how the individual componentsof the subst

33、orm interact, and how substorms power the auroras. The missionssecondary objectives involve understanding and predicting variations in the fluxof electrons in Earths outer radiation belt. These electrons pose a hazard to the(15) safety of both astronauts and spacecraft. Understanding substorm instab

34、ilitieswould thus improve success rates of future space missions.（分数：2.00）(1).The main purpose of the passage is to（分数：1.00）A.(A) explain why it is important to invest in space researchB.(B) explain how magnetic substorms interfere with satellite communicationsC.(C) define magnetic substorms and ide

35、ntify a recent scientific experiment to study themD.(D) compare two alternative approaches to the study of magnetic substormsE.(E) demonstrate that unmanned probes are the best way to conduct research in space(2).According to the passage, all of the following are objectives of the THEMIS mission EXC

36、EPT:（分数：1.00）A.(A) predicting variations in the flux of electrons in Earths outer radiation beltB.(B) understanding how individual components of the substorm interactC.(C) guaranteeing the success rates of future space missionsD.(D) investigating when and where substorms beginE.(E) understanding how

37、 substorms power the auroras17.PRAGMATIC:（分数：1.00）A.(A) ampleB.(B) sensibleC.(C) impracticalD.(D) astuteE.(E) exiguous18.NOXIOUS:（分数：1.00）A.(A) salubriousB.(B) deleteriousC.(C) deficientD.(D) completeE.(E) egregious19.HACKNEYED : ORIGINAL :（分数：1.00）A.(A) fatuous : intelligentB.(B) incongruous : impo

38、ssibleC.(C) careless : inadvertentD.(D) threatening : forcefulE.(E) beginning : inchoate20.OBTUSE:（分数：1.00）A.(A) substantialB.(B) trivialC.(C) immenseD.(D) perceptiveE.(E) dense21.BANAL : ZEST :（分数：1.00）A.(A) fortuitous : graceB.(B) garrulous : speechC.(C) gregarious : moneyD.(D) grievous : sincerit

39、yE.(E) incongruous : harmony22.TRACTABLE:（分数：1.00）A.(A) unrulyB.(B) phlegmaticC.(C) acquiescentD.(D) distantE.(E) artful二、BSECTION 4/B(总题数：6，分数：16.00)This section includes three types of questions: Quantitative Comparison, Discrete Problem Solving, and Numeric Entry. For each question, circle the le

40、tter of your choice or write your answer as instructed.Directions for Quantitative Comparison Questions: Some of the following questions give you two quantities, one in Column A and one in Column B, Compare the two quantities and choose one of the following answer choices: Aif the quantity in Column

41、 A is greater; Bif the quantity in column B is greater; Cif the two quantities are equal; Dif you cannot determine the relationship based on the given information （分数：4.02）A.B.C.D.A.B.C.D.A.B.C.D._Directions for Quantitative Comparison Questions: Some of the following questions give you two quantiti

42、es, one in Column A and one in Column B, Compare the two quantities and choose one of the following answer choices: Aif the quantity in Column A is greater; Bif the quantity in column B is greater; Cif the two quantities are equal; Dif you cannot determine the relationship based on the given informa

43、tion （分数：3.01）A.B.C.D.A.B.C.D._（分数：2.00）(1).In 1995, approximately how many million people were on the Zone Diet?（分数：1.00）A.(A) 12B.(B) 16C.(C) 23D.(D) 27E.(E) 35(2).What is the approximate percent increase in the number of Master Cleanse dieters from 1995 to 2000? （分数：1.00）A.(A) 200%B.(B) 189%C.(C)

44、 187%D.(D) 159%E.(E) 129%Directions for Quantitative Comparison Questions: Some of the following questions give you two quantities, one in Column A and one in Column B, Compare the two quantities and choose one of the following answer choices: Aif the quantity in Column A is greater; Bif the quantit

45、y in column B is greater; Cif the two quantities are equal; Dif you cannot determine the relationship based on the given information （分数：2.00）A.B.C.D._A poll of 2,000 students was taken before Centerville College changed the name of its mascot. All 2,000 students indicated which one of the four masc

46、ot names they would vote for. The results of the poll are given in the table below. Mascot Name Number Students Spartans 300Lions 400Gophers 800Knights 500（分数：2.01）(1).What percent of the students polled chose Spartans in the poll? （分数：0.67）A.(A) 40%B.(B) 30%C.(C) 25%D.(D) 20%E.(E) 15%(2).If the information in the table were converted to a pie chart, then the central angle of the sector for Lions would measure how many degrees? （分数：0.67）A.(A) 144B.(B) 108C.(C) 72D.(D) 54E.(E) It cannot be determined from the given information._Directions for Quantitative Comparison Questio