2021年北京GRE考试模拟卷.docx

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1、2021年北京GRE考试模拟卷本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1. Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies responses to the sound of the human voice will be different

2、 from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the(5) sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at t

3、he ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies emotional states and behavior. Long before they(10)

4、develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech. Adults make it as easy as they can for babies to pick up a languag

5、e by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and(15) found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that

6、 when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.(20) More significant for language development than their response to general

7、intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language. Babies obviously derive pleasure f

8、rom sound input, too: even as young as nine months(25) they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults.According to the author, why

9、 do babies listen to songs and stories, even though they cannot understand themAThey understand the rhythm.BThey enjoy the sound.CThey can remember them easily.DThey focus on the meaning of their parents words. 2. If the circumference of the circle above is 16, and if the length of AC equals the len

10、gth of BD, what is the length of ACA. B.16 C.D. 32 E. 16 3.In a crate of fruit that contained strawberries, blueberries, and raspberries, the ratio of the number of pints of strawberries to the number of pints of blueberries to the number of pints of raspberries was 6 to 4 to 5, respectively. If the

11、 crate contained a total of 45 pints of these fruits, how many more pints of strawberries than blueberries were there in the crateA. 2 B. 3 C. 4D. 5 E. 6 4.A certain doctor suggests that an individuals daily water intake be ounce per pound of body weight plus 8 ounces for every 25 pounds by which th

12、e individual exceeds his or her ideal weight. If this doctor suggests a daily water intake of 136 ounces for a particular 240-pound individual, how many pounds above his or her ideal weight is that individualA. B. 16 C. 30 D. 50 E. 120 5.Researchers at the Shimizu Institute in Japan believe it is po

13、ssible to terraform Mars by making use of the planets own resources and by introducing genetically altered life from Earth. They hope these actions will speed up the terraforming process, not just by adapting Mars to support Earth-life, but also by adapting Earthlife to exist on Mars. These experts

14、think they can use the Martian geology itself to jump-start the planet. The theory is that detonation of thermonuclear devices deep in the Martian mountains will trigger eruptions of hot magma that would melt the frozen atmosphere, thereby releasing the components necessary for life. 6.For generatio

15、ns, Native Americans used myths and legends to explain the mysterious world around them. One such etiological myth originated with the Cherokee. According to the tale, at one time, far in the past, animals, birds, fishes, and even insects were able to communicate with one another. When humans arrive

16、d, however, life became more difficult because the creatures habitats began to shrink. In order to protect themselves, the creatures decided to introduce disease to humans. The plant world, however, took sympathy upon the Cherokee and so provided a remedy for each of the diseases created by the crea

17、tures. It was because of this, says the legend, that the Cherokee turned to plants for antidotes and medicines for illness.Which of the following describes the organization of the passageA. The author defines a theory then illustrates its workings.B. The author argues for one side then presents a co

18、unterargument.C. The author defends an early explanation of aboriginal medical practices.D. The author introduces a subject then gives an example of it.E. The author compares two versions of a creation myth to determine which is the original.7.Researchers at the Shimizu Institute in Japan believe it

19、 is possible to terraform Mars by making use of the planets own resources and by introducing genetically altered life from Earth. They hope these actions will speed up the terraforming process, not just by adapting Mars to support Earth-life, but also by adapting Earthlife to exist on Mars. These ex

20、perts think they can use the Martian geology itself to jump-start the planet. The theory is that detonation of thermonuclear devices deep in the Martian mountains will trigger eruptions of hot magma that would melt the frozen atmosphere, thereby releasing the components necessary for life. 8.In many

21、 Western European nations, the law is seen as rigid and not open to interpretation. This rigidity grants a consistency to questions of law that many would argue is absent in other, more flexible systems. The European construction of law provides litigants with a clear picture of how a case will be d

22、ecided. All parties involved are certain how judges will rule on issues. It is simple-judges will strictly follow the law. This simple fact, that the law will not change from one situation to another, allows for court systems in Western Europe to process cases efficiently and cuts down on the amount

23、 of frivolous lawsuits. It is useless for an individual to attempt a case if he knows in advance that the law is not in his favor. 9.If x+y=16, and if x2-y2=48, then x -y=A. 3 B. 4 C. 6 D. 32 E. 3610.Which of the following sets of numbers has the greatest standard deviationA. 2, 3, 4 B. 2.5, 3, 3.5

24、C. 1, 1.25, 1.5D. -2, 0, 2E. -20, 21, 21.511.For generations, Native Americans used myths and legends to explain the mysterious world around them. One such etiological myth originated with the Cherokee. According to the tale, at one time, far in the past, animals, birds, fishes, and even insects wer

25、e able to communicate with one another. When humans arrived, however, life became more difficult because the creatures habitats began to shrink. In order to protect themselves, the creatures decided to introduce disease to humans. The plant world, however, took sympathy upon the Cherokee and so prov

26、ided a remedy for each of the diseases created by the creatures. It was because of this, says the legend, that the Cherokee turned to plants for antidotes and medicines for illness.The author mentions etiological myth probably in order toA. cast aspersion on Cherokee legendsB. give the academic desi

27、gnation for legends that explain practices or eventsC. show how animals were thought by the Cherokee to be able to communicate with each other12.If a and b are the lengths of the legs of a right triangle whose hypotenuse is 10 and whose area is 20,what is the value of (a +b.2A. 100B. 120C. 140D.180

28、E.200 13.In a group of 100 students, more students are on the fencing team than are members of the French club. If 70 are in the club and 20 are neither on the team nor in the club, what, is the minimum number of students who could, be both on the team and in the clubA. 10 B. 49 C. 50D. 60E. 6114.Jo

29、sh works on the second floor of a building. There are 10 doors to the building and 8 staircases from the first to the second floor. Josh decided that each day he would enter by one door and leave by a different one, and go up one staircase and down another. How many days could Josh do this before he

30、 had to repeat a path he had previously takenA. 80 B. 640 C. 800 D. 5040 E. 6400 15.In many Western European nations, the law is seen as rigid and not open to interpretation. This rigidity grants a consistency to questions of law that many would argue is absent in other, more flexible systems. The E

31、uropean construction of law provides litigants with a clear picture of how a case will be decided. All parties involved are certain how judges will rule on issues. It is simple-judges will strictly follow the law. This simple fact, that the law will not change from one situation to another, allows f

32、or court systems in Western Europe to process cases efficiently and cuts down on the amount of frivolous lawsuits. It is useless for an individual to attempt a case if he knows in advance that the law is not in his favor. 16.A developer has land that has x feet of lake frontage. The land is to be su

33、bdivided into lots, each of which is to have either 80 feet or 100 feet of lake frontage. If of the lots are to have 80 feet of frontage each and the remaining 40 lots are to have 100 feet of frontage each, what is the value of xA. 400 B. 3,200 C. 3,700 D. 4,400E. 4,76017.When 9 students took a zool

34、ogy quiz with a possible score of 0 to 10 inclusive, their average (arithmetic mean) score was 7.5. If a tenth student takes the same quiz, what will be the least possible average score on the quiz for all 10 studentsA. 6.5B. 6.75 C. 7.0 D. 7.25 E. 7.5 18.Two buses are 515 miles apart. At 9:30 a. m.

35、, they start traveling toward each other at rates of 48 and 55 miles per hour. At what time will they pass each otherA. 1:30 p.m. B. 2:00 p.m. C. 2:30 p.m.D. 3:00 p.m.E. 3:30 p. m.19.If x+y=16, and if x2-y2=48, then x -y=A. 3 B. 4 C. 6 D. 32 E. 3620.If the radius of a circular region were decreased

36、by 20 percent, the area of the circular region would decrease by what percentA. 16% B. 20% C. 36%D. 40% E. 44% 21.An investor wants to sell some of the stock that he owns in Micro Tron and Dynaco Corporations. He can sell Micro Tron stock for $ 36 per share, and he can sell Dynaco stock for $ 52 per

37、 share. If he sells 300 shares altogether at an average price per share of $40, how many shares of Dynaco stock has he soldA. 52B. 75C. 92D. 136E. 18422.Average expected family contribution (EFC) for dependent students, by family income: Academic year 1995-96 23.The advertised rate for roaming charg

38、es is 0. 002 cents per second. What is that in dollars per hourA. 7.2 B. 2 C. 0.72 D. 0.2E. 0.07224.George earned 80, 85 and 90 on the first three tests in his geography class. Because he didnt have time to study, he decides to guess randomly on the final test. That test has ten true-false questions

39、, each worth 10 points. What is the probability his final average is more than 85 25.Human fascination with space began hundreds of years ago. That interest has not waned, and today, the Hubble Telescope orbits 375 miles above Earth, working nonstop to unlock the secrets of the universe. The Hubble

40、uses state-of-the-art instruments to provide amazing views of the universe that cannot be matched by ground-based telescopes. The reason for this is that, from the ground, we look at stars and other objects in space through Earths atmosphere. Our atmosphere is full of clouds, dust, and pollution, wh

41、ich cause everything we see to shimmer and shake. This effect creates difficulty for scientists on the ground to make steady, accurate measurements of objects moving in space. With assistance from the Hubble Telescope, astronomers can pinpoint the location of faraway stars and galaxies, and measure

42、the speeds and distances of astronomical objects with far greater precision. Astronomers may even one day tell us exactly when the universe began. 26.Making snow angels usually falls under the category of childrens winter recreation, but in early 2007, the process took on a whole new meaning. Almost

43、 9,000 people gathered on the state Capitol grounds in Bismarck, North Dakota, to set a new worlds record for the most people making snow angels at one time. They were determined to break Michigans record of 3,784. Participants ranged from families with children to snowplow drivers. One woman was th

44、ere to mark her 99th birthday! Kids of all ages flapped their arms in the snow and a young baby even made a snow angel by having her car seat spun in circles. 27.How many students are either juniors or males or bothA. 678B. 766C. 948D. 1,130E. 1,31228.A baby polar bear named Knut at the Berlin Zoo i

45、s the epicenter of a debate about animal rights and the ethics of keeping animals in captivity. Knut and his brother were abandoned by their mother after being born at the zoo. Knuts sibling died, and Knut himself would have died as well, had the zoo officials not intervened. The zoo workers have be

46、en bottle-feeding the bear, and providing it with nourishment and care. Yet certain animal-rights activists say that the bear would have been better off dead than raised by humans, and some go as far as to say that Knut should be killed. They believe that the current treatment of the bear is inhuman

47、e, and will lead to future difficulty for Knut in interacting with other polar bears. They argue that since the mother rejected the cub, the zoo workers should have abided by the laws of nature, and the cub should have been allowed to die. Others have argued that in light of the fact that polar bears are an endangered species, it makes sense to keep as many bears as possible alive in captivity so that they can breed. 29.Two competitors battle each other in each match of a tournament with nine participants. What is the minimum n