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  • GRE试题(三)
  • ACT试题(三)
  • GMAT3数学题
  • GMAT4 综合推理题
  • TOEFL TEST (一)
  • GMAT阅读题
  • GRE试题(三)



    Quantitative Reasoning Practice Test for the GRE


    一、 Which of the following is equivalent to 1/2?










    二、 Rectangle A has twice the length and 1/2 the width of rectangle B. Rectangle B has a length of six units and a width of four units. What is the perimeter of rectangle A?


    26 units


    48 units


    24 units


    28 units


    三、 Which of the following integers satisfies this condition: It is a multiple of 8 and the cube of an even number? Indicate all such integers.

    (A) 72
    (B) 64
    (C) 128
    (D) 216
    (E) 1000
    (F) 1728


    (B), (C) and (D)


    (D), (E) and (F)


    (B), (D), (E) and (F)


    (A), (B), (C) and (D)


    四、When graphed, two of the lines described in the equations below will go up from the left to the right of the Cartesian plane. Indicate both equations.

    (A) 2y=15–5x 2y=15–5x 

    (B) y+3x=7 y+3x=7 

    (C) 1/5 x=y–4 15x=y–4 

    (D) 3x–2y=4 3x–2y=4 


    (B) and (C)


    (C) and (D)


    (D) and (A)


    (A) and (B)




  • ACT试题(三)




    The Reading section of the ACT test measures your comprehension skills by providing a passage from which you should be able to read, then find explicitly stated details, infer from text, draw conclusions, and make comparisons and generalizations. Roughly 25% of the passages come from each of these subject areas: Social Studies, Natural Sciences, Literature, and Humanities.

    Most of the reading questions refer to a single passage, but the ACT test has introduced “paired passages,” for which you will need to refer to two separate short paragraphs on the same topic to answer questions. During the Reading section of the ACT test, you have 35 minutes to answer 40 questions. You need to read passages thoroughly, but quickly, attempting to gain the most meaning while wasting no time. This would be a good thing to practice during your preparation.

    This passage was written by the essayist and lecturer, Ralph Waldo Emerson.

    ESSAY II Self-Reliance

    I read the other day some verses written by an eminent painter which were original and not conventional. The soul always hears an admonition in such lines, let the subject be what it may. The sentiment they instil is of more value than any thought they may contain. To believe your own thought, to believe that what is true for you in your private heart is true for all men, — that is genius. Speak your latent conviction, and it shall be the universal sense; for the inmost in due time becomes the outmost,—— and our first thought is rendered back to us by the trumpets of the Last Judgment. Familiar as the voice of the mind is to each, the highest merit we ascribe to Moses, Plato, and Milton is, that they set at naught books and traditions, and spoke not what men but what they thought. A man should learn to detect and watch that gleam of light which flashes across his mind from within, more than the lustre of the firmament of bards and sages. Yet he dismisses without notice his thought, because it is his. In every work of genius we recognize our own rejected thoughts: they come back to us with a certain alienated majesty. Great works of art have no more affecting lesson for us than this. They teach us to abide by our spontaneous impression with good-humored inflexibility then most when the whole cry of voices is on the other side. Else, to-morrow a stranger will say with masterly good sense precisely what we have thought and felt all the time, and we shall be forced to take with shame our own opinion from another.

    There is a time in every man’s education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take himself for better, for worse, as his portion; that though the wide universe is full of good, no kernel of nourishing corn can come to him but through his toil bestowed on that plot of ground which is given to him to till. The power which resides in him is new in nature, and none but he knows what that is which he can do, nor does he know until he has tried. Not for nothing one face, one character, one fact, makes much impression on him, and another none. This sculpture in the memory is not without preestablished harmony. The eye was placed where one ray should fall, that it might testify of that particular ray. We but half express ourselves, and are ashamed of that divine idea which each of us represents. It may be safely trusted as proportionate and of good issues, so it be faithfully imparted, but God will not have his work made manifest by cowards. A man is relieved and gay when he has put his heart into his work and done his best; but what he has said or done otherwise, shall give him no peace. It is a deliverance which does not deliver. In the attempt his genius deserts him; no muse befriends; no invention, no hope.

    Trust thyself: every heart vibrates to that iron string. Accept the place the divine providence has found for you, the society of your contemporaries, the connection of events. Great men have always done so, and confided themselves childlike to the genius of their age, betraying their perception that the absolutely trustworthy was seated at their heart, working through their hands, predominating in all their being. And we are now men, and must accept in the highest mind the same transcendent destiny; and not minors and invalids in a protected corner, not cowards fleeing before a revolution, but guides, redeemers, and benefactors, obeying the Almighty effort, and advancing on Chaos and the Dark.

    What pretty oracles nature yields us on this text, in the face and behaviour of children, babes, and even brutes! That divided and rebel mind, that distrust of a sentiment because our arithmetic has computed the strength and means opposed to our purpose, these have not. Their mind being whole, their eye is as yet unconquered, and when we look in their faces, we are disconcerted. Infancy conforms to nobody: all conform to it, so that one babe commonly makes four or five out of the adults who prattle and play to it. So God has armed youth and puberty and manhood no less with its own piquancy and charm, and made it enviable and gracious and its claims not to be put by, if it will stand by itself. Do not think the youth has no force, because he cannot speak to you and me. Hark! in the next room his voice is sufficiently clear and emphatic. It seems he knows how to speak to his contemporaries. Bashful or bold, then, he will know how to make us seniors very unnecessary.

    The nonchalance of boys who are sure of a dinner, and would disdain as much as a lord to do or say aught to conciliate one, is the healthy attitude of human nature. A boy is in the parlour what the pit is in the playhouse; independent, irresponsible, looking out from his corner on such people and facts as pass by, he tries and sentences them on their merits, in the swift, summary way of boys, as good, bad, interesting, silly, eloquent, troublesome. He cumbers himself never about consequences, about interests: he gives an independent, genuine verdict. You must court him: he does not court you. But the man is, as it were, clapped into jail by his consciousness. As soon as he has once acted or spoken with eclat, he is a committed person, watched by the sympathy or the hatred of hundreds, whose affections must now enter into his account. There is no Lethe for this. Ah, that he could pass again into his neutrality! Who can thus avoid all pledges, and having observed, observe again from the same unaffected, unbiased, unbribable, unaffrighted innocence, must always be formidable. He would utter opinions on all passing affairs, which being seen to be not private, but necessary, would sink like darts into the ear of men, and put them in fear.

    一、  What is one of the primary themes found in this excerpt of Emerson’s essay?


      1.Societal conformity

      2.Trusting oneself

      3.Faith in others

      4.The importance of education



    二、 What does Emerson urge his audience to do in the first paragraph?

    1. To believe in the wisdom of others and follow the leadership of great men

    2. To focus on educating oneself in the face of opposition

    3. To believe in yourself and to speak your convictions aloud

    4. To become a man or woman of the world, investigating the thoughts and ideas of others


    三、 What is the meaning of the word “unaffrighted” as it is used in the final paragraph in the passage?

    1. unhindered, nonchalant

    2. disobedient, rebellious

    3. unafraid, brave

    4. uninterested, detached


    四、 What, does Emerson argue, is the function of intuition?

      1.Intuition separates mankind from other animals.

      2.Intuition is a gift given to the wise, and should be used to educate those who are less learned.

      3.Intuition is the means by which men and women judge one another.

      4.Intuition serves as one’s moral center.

    五、 What is the core purpose of the essay’s first paragraph or introduction?

      1.To posit the notion that mankind must learn to listen to self before listening to others

      2.To introduce the idea of following great leaders to the audience

      3.To provide exposition of Emerson as an author qualified to compose this essay

      4.To identify the inspiration for Emerson’s essay


    六、 Which of the following statements would Emerson likely agree with?

      1.Time not spent in the company of others is wasted.

      2.A day gone by without a serious discussion is a day lost.

      3.Harmony may only be achieved through the melding of minds.

      4.Peace cannot be achieved without extensive self-observation and inward thought.


    七、 What is the overall tone of the passage?

      1. Weary, resigned

      2. Frantic, urgent

      3.Hopeful, musing

      4. Persuasive, manipulative


    八、 What is Emerson’s attitude toward children and youth?

      1. Emerson commends youth for their honesty, but encouraged adults to practice greater tact in their everyday doings.

      2. Emerson regards children with fondness, but acknowledges the importance of moving past childish fancy.

      3. He considers children to be fiendish in their behavior, and youth more so.

      4. He regards the innocence and guilelessness of youth with respect and envy.


    九、 How does the title “Self-Reliance” relate to the passage?

      1.  “Self-Reliance” serves as the thesis for this piece.

      2. “Self-Reliance” serves as the antithesis to the piece.

      3. “Self-Reliance” is the name of the work that inspired Emerson’s essay.

      4. “Self-Reliance” refers to Emerson’s experiences in his early childhood.

    十、 What is the meaning of this excerpt, found at the base of the first paragraph?

      1. You should always strive to have the first word in an argument.

      2. Originality is a concept long ago abandoned, and cannot be reclaimed.

      3. Those around you will inevitably speak shameful words.

      4. Waiting to speak one’s opinion until another has spoken the same opinion will result in a feeling of shame or disconnection from that opinion.


  • GMAT3数学题


    The sides of a square region, measured to the nearest centimeter, are 6 centimeters long. The least possible value of the actual area of the square region is

    A 36.00 sq cm

    B 35.00 sq cm

    C 33.75 sq cm

    D 30.25 sq cm

    E 25.00 sq cm














  • GMAT4 综合推理题


    GMAT4 综合推理题

    The Quasi JX is a new car model. Under ideal driving conditions, the Quasi JX's fuel economy is E kilometers per liter(E km/l) when its driving speed is constant at S kilometers per hour (S km/h).

    In terms of the variables S and E, select the expression that represents the number of liters of fuel used in 1 hour of driving under ideal driving conditions at a constant speed S, and select the expression that represents the number of liters of fuel used in a 60 km drive under Ideal driving conditions at a constant speed S. Make only two selections, one in each column.

    1. Liters of fuel in 60 km = ?

    A. S/E  B. E/S  C. 60/E  D. 60/S E. E/60

    2. Liters of fuel in 1 h = ?

    A. S/E  B. E/S C. 60/E  D. 60/S E. E/60







    一升可以走E千米,即1 (L)=E (K);一小时可以走S千米,即1 (h)=S (K)





  • TOEFL TEST (一)



     Reading "Thermoregulation"

    1Mammals and birds generally maintain body temperature within a narrow range (36-38aC for most mammals and 39-42aC for most birds) that is usually considerably warmer than the environment. Because heat always flows from a warm object to cooler surroundings, birds and mammals must counteract the constant heat loss. This maintenance of warm body temperature depends on several key adaptations. The most basic mechanism is the high metabolic rate of endothermy itself. Endotherms can produce large amounts of metabolic heat that replace the flow of heat to the environment, and they can vary heat pro- duction to match changing rates of heat loss. Heat production is increased by such muscle activity as moving or shivering. In some mammals, certain hormones can cause mitochondria to increase their metabolic activity and produce heat instead of ATP. This nonshivering thermogenesis (NST) takes place throughout the body, but some mammals also have a tissue called brown fat in the neck and between the shoulders that is specialized for rapid heat production. Through shivering and NST, mammals and birds in cold environments can increase their metabolic heat production by as much as 5 to 10 times above the minimal levels that occur in warm conditions.

    2Another major thermoregulatory adaptation that evolved in mammals and birds is insulation (hair, feathers, and fat layers), which reduces the flow of heat and lowers the energy cost of keeping warm. Most land mammals and birds react to cold by raising their fur or feathers, thereby trapping a thicker layer of air. Humans rely more on a layer of fat just beneath the skin as insulation; goose bumps are a vestige of hair-raising left over from our furry ancestors. Vasodilation and vasoconstriction also regulate heat exchange and may contribute to regional temperature differences within the animal. For example, heat loss from a human is reduced when arms and legs cool to several degrees below the temperature of the body core, where most vital organs are located.

    3Hair loses most of its insulating power when wet. Marine mammals such as whales and seals have a very thick layer of insulation fat called blubber, just under the skin. Marine mammals swim in water colder than their body core temperature, and many species spend at least part of the year in nearly freezing polar seas. The loss of heat to water occurs 50 to 100 times more rapidly than eat loss to air, and the skin temperature of a marine mammal is close to water temperature. Even so, the blubber insulation is so effective that marine mam-mals maintain body core temperatures of about 36-38oC with metabolic rates about the same as those of land mammals of similar size. The flippers or tail of a whale or seal lack insulating blubber, but countercurrent heat exchangers greatly reduce heat loss in these extremities, as they do in the legs of many birds.

    4Through metabolic heat production, insulation, and vascular adjustments, birds and mammals are capable of astonishing feats of thermoregulation. For example, small birds called chickadees, which weigh only 20 grams, can remain active and hold body temperature nearly constant at 40oC in environ- mental temperatures as low as -40-as long as they have enough food to supply the large amount of energy necessary for heat production.

    5Many mammals and birds live in places where thermoregulation requires cooling off as well as warming. For example, when a marine mammal moves into warm seas, as many whales do when they reproduce, excess metabolic heat is removed by vasodilation of numerous blood vessels in the outer layer of the skin. In hot climates or when vigorous exercise adds large amounts of metabolic heat to the body, many terrestrial mammals and birds may allow body temperature to rise by several degrees, which enhances heat loss by increasing the temperature gradient between the body and a warm environment.

    6Evaporative cooling often plays a key role in dissipating the body heat. If environmental temperature is above body temperature, animals gain heat from the environment as well as from metabolism, and evaporation is the only way to keep body temperature from rising rapidly. Panting is important in birds and many mammals. Some birds have a pouch richly supplied with blood vessels in the floor of the mouth; fluttering the pouch increases evaporation. Pigeons can use evaporative cooling to keep body temperature close to 40oC in air temperatures as high as 60oC, as long as they have sufficient water. Many terrestrial mammals have sweat glands controlled by the nervous system. Other mechanisms that promote evaporative cooling include spreading saliva on body surfaces, an adaptation of some kangaroos and rodents for combating severe heat stress. Some bats use both saliva and urine to enhance evaporative cooling. Glossary ATP: energy that drives certain reactions in cells mitochondria: a membrane of ATP According to paragraph


    1, the most fundamental adaptation to maintain body temperature is

    the heat generated by the metabolism

    a shivering reflex in the muscles

    migration to a warmer environment

    higher caloric intake to match heat loss


    2.Based on information in paragraph 1, which of the following best explains the term "thermogenesis"?

    Heat loss that must be reversed

    The adaptation of brown fat tissue in the neck

    The maintenance of healthy environmental conditions

    Conditions that affect the metabolism


    3.Which of the sentences below best expresses the information in the highlighted statement in the passage? The other choices change the meaning or leave out important information.

    An increase in heat production causes muscle activity such as moving or shivering.

    Muscle activity like moving and shivering will increase heat production

    Moving and shivering are muscle activities that increase with heat.

    When heat increases, the production of muscle activity also increases


    4.The word minimal in the passage is closest in meaning to

    most recent

    most active




    5.In paragraph 2, the author explains the concept of vasodilation and vasoconstriction by

    describing the evolution in our ancestors

    giving an example of heat loss in the extremities

    comparing the process in humans and animals

    identifying various types of insulation


    6.The word regulate in the passage is closest in meaning to






    7.According to paragraph 3, why do many marine animals require a layer of blubber?

    Because marine animals have lost their hair during evolution

    Because heat is lost in water much faster than it is in air

    Because dry hair does not insulate marine animals

    Because they are so large that they require more insulation


    8.The word those in the passage refers to

    marine animals

    core temperatures

    land mammals

    metabolic rate


    9. Why does the author mention "chickadees" in paragraph 4?

    To discuss an animal that regulates heat very well

    To demonstrate why chickadees have to eat so much

    To mention an exception to the rules of thermoregulation

    To give a reason for heat production in small animals


    10.In paragraph 6, the author states that evaporative cooling is often accomplished by all of the following methods EXCEPT

    by spreading saliva over the area

    by urinating on the body

    by panting or fluttering a pouch

    by immersing themselves in water



  • GMAT阅读题



    Eco efficiency (measures to minimize environmental impact through the reduction or elimination of waste from production processes) has become a goal for companies worldwide, with many realizing significant cost savings from such innovations. Peter Senge and Goran Carstedt see this development as laudable but suggest that simply adopting eco efficiency innovations could actually worsen environmental stresses in the future. Such innovations reduce production waste but do not alter the number of products manufactured nor the waste generated from their use and discard; indeed, most companies invest in eco efficiency improvements in order to increase profits and growth. Moreover, there is no guarantee that increased economic growth from eco efficiency will come in similarly eco efficient ways, since in today’s global markets, greater profits may be turned into investment capital that could easily be reinvested in old-style eco-inefficient industries. Even a vastly more eco efficient industrial system could, were it to grow much larger, generate more total waste and destroy more habitat and species than would a smaller, less eco efficient economy. Senge and Carstedt argue that to preserve the global environment and sustain economic growth, businesses must develop a new systemic approach that reduces total material use and total accumulated waste. Focusing exclusively on eco efficiency, which offers a compelling business case according to established thinking, may distract companies from pursuing radically different products and business models.

    1. The primary purpose of the passage is to

    A explain why a particular business strategy has been less successful than was once anticipated

    B propose an alternative to a particular business strategy that has inadvertently caused ecological damage

    C present a concern about the possible consequences of pursuing a particular business strategy

    D make a case for applying a particular business strategy on a larger scale than is currently practiced

    E suggest several possible outcomes of companies’ failure to understand the economic impact of a particular business strategy

    2. The passage implies that which of the following is a possible consequence of a company’s adoption of innovations that increase its eco efficiency?

    A Company profits resulting from such innovations may be reinvested in that company with no guarantee that the company will continue to make further improvements in eco efficiency.

    B Company growth fostered by cost savings from such innovations may allow that company to manufacture a greater number of products that will be used and discarded, thus worsening environmental stress.

    C A company that fails to realize significant cost savings from such innovations may have little incentive to continue to minimize the environmental impact of its production processes.

    D A company that comes to depend on such innovations to increase its profits and growth may be vulnerable in the global market to competition from old-style eco-inefficient industries.

    E A company that meets its eco efficiency goals is unlikely to invest its increased profits in the development of new and innovative eco efficiency measures.

    3. According to the passage, an exclusive pursuit of ecoefficiency may cause companies to

    A neglect the development of alternative business models and products

    B keep the number of products that they manufacture unchanged

    C invest capital from increased profits primarily in inefficient and outmoded industries that may prove unprofitable

    D overemphasize the production process as the key to increasing profits and growth

    E focus more on reducing costs than on reducing the environmental impact of production processes


    C B A



    A 文章从没说这个经济策略是否会成功,也没预测过。

    B 但是没有这样一个方法实际上被提出。

    C line5-7和最后一句话 ,提出建议只是在关心的基础之上,总体还是讲对这个特殊的经济策略的关心。因此选C

    D 文章指出了这个策略的缺陷,并没有支持这种策略的扩张。

    E 文章关心的是环境的影响,并不关心经济的影响。


    问题问的是 下面选项里面哪一个是一个可能的后果,对于a company’s adoption of innovations that increase its eco efficiency?

    定位原文:Peter Senge and Goran Carstedt see this development as laudable but suggest that simply adopting eco efficiency innovations could actually worsen environmental stresses in the future.

    大概是说adopting eco efficiency innovations可以使环境变坏。



    读题目an exclusive pursuit of eco efficiency may cause companies to

    那么回原文定位必定是有exclusive pursuit of eco efficiency


    Focusing exclusively on eco efficiency, which offers a compelling business case according to established thinking, may distract companies from pursuing radically different products and business models.

    选项里面提到productsbusiness models的只有A了。



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