哈工大考博英语真题

Passage 3
Questions11-----18 are based on the following passage.
The tragic impact of the modern city on the human being has killed his sense of aesthetics, the material benefits of an affluent society have diverted his attention from aesthetics, the material benefits of an affluent society have diverted his attention from his city and its cultural potentials to the products of science and technology: washing machines, central heating, automatic cookers, television sets, computers and fitted carpets, He is, at the moment, drunk with democracy, well-to-do, a car driver, and has never had it so good.
He is reluctant to walk. Statistics reveal that the distance he is prepared to walk from his parking place to his shopping center is very short. As there are no adequate off-street parking facilities, the cities are littered with kerb-parked cars and parking meters rear themselves everywhere. Congestion has become the predominant factor in his environment, and statistics suggest that two cars per household system may soon make matters worse.
In the meantime, insult is added to injury by “land value”. The value of land results from its use: its income and its value increase. “Putting land to its highest and best use” becomes the principal economic standard in urban growth. This speculative approach and the pressure of increasing population lead to the “vertical” growth of cities with the result that people are forced to adjust themselves to congestion in order to maintain these relatively artificial land values. Paradoxically the remedy for removing congestion is to create no re of it.
Partial decentralization, or rather, pseudo-decentralization, in the form of large development units away from the traditional town centers, only shifts the disease round the anatomy of the town, if it is not combined with remodeling of the town’s transportation system, it does not cure it. Here the engineering solutions are strongly affected by the necessity for complicated intersections, which in turn, are frustrated by the extravagant cost of land.
It is within our power to build better cities and revive the civic pride of their citizens, but we shall have to stop operating on the fringe of the problem. We shall have to radically to replan them to achieve a rational densities of population we have to provide in them what can be called minimum “psychological elbow room”. One of the ingredients of this will be proper transportation plans. These will have to be an integral part of the overall planning process which in itself is a scientific process where facts are essential. We must collect, in an organized manner, all and complete information about the city or the town, if we want to plan effectively.
The principal unit in this process is “IM”(one man). We must not forget that cities are built by people, and that their form and shape should be subject to the will of the people. Scientific methods of data collection and analysis will indicate trends, but they will not direct action. Scientific methods are only an instrument. The “man-educated” man, the human, will have to set the target, and using the results obtained by science and his own engineering skill, take upon himself the final shaping of his environment. He will have to use his high moral sense of responsibility to the community and to future generations.
11. The main concern of this passage is with_______.
A city culture
Bland value in cities
C city congestion
D decentralization
12.It can be inferred from the first paragraph that people in old times_______.
A paid more attention to material benefits
B had a stronger sense of beauty
C were more desirous about the development of science and technology
D enjoyed more freedom and democracy
13.The highly-developed technology has made man________.
A increasingly industrious
B free from inconvenience
C excessively dependent on external aids
D able to save his physical strength
14 The drastic increase of land value in the city________.
A is the good result of economic development
B offers more opportunities to land dealers
C is annoyingly artificial and meaningless
D fortunately leads to the “vertical” growth of cities
15. The expansion of big cities to the distant suburban areas may______.
A solve the problem of city congestion
B result in the remodeling of the town’s transportation system
C bring the same congestion to the suburban areas
D need less investment on land
16 the main purpose of the author is to_______. .
A point out a problem and criticize it
B advocate that all cities need to be re-planned and remodeled
C point out the significance of solving the problem
D criticize a problem and try to find a solution to it
17 the author suggests that the remodeling of cities must_______.
A put priority to the benefit of the future generations
B be focused on people rather than on economy.
C be economically profitable to land owners
D resort to scientific methods
18 who will probably like to read articles of this kind/
A businessmen B economists C urban people D rural people
Passage 4
Questions 19----25 are based on the following passage.
The two claws of the mature American lobster are decidedly different from each other. The crusher claw is short and stout: the cutter claw is long and slender. Such bilateral asymmetry, in which the right side of the body is, in all other respects, a mirror image of the left side, is not unlike handedness in humans. But where the majority of humans are right-handed, in lobsters the crusher claw appears with equal probability on either the right or left side of the body.
Bilateral asymmetry of the claws comes about gradually. In the juvenile fourth and fifth stages of development, the paired claws are symmetrical and cutter-like. Asymmetry begins to appear in the juvenile sixth stage of development, and the paired claws further diverge toward well-defined cutter and crusher claws during succeeding stages. An intriguing aspect of this development was discovered by Victor Emmel. He found that if one of the paired claws is removed during the fourth of fifth stage, the intact claw invariably becomes a crusher, while the regenerated claw becomes a cutter. Removal of a claw during a later juvenile stage or during adulthood, when asymmetry is present, does not alter the asymmetry, the intact and the regenerated claws retain their original structures.
These observations indicate that the conditions tat trigger differentiation must operate in a random manner when the paired claws are intact but in a nonrandom manner when one of the claws is lost. One possible explanation is that differential use of the claws determine their asymmetry. Perhaps the claw that is used more becomes the crusher. This would explain why, when one of the claws is missing during the fourth or fifth stage, the intact claw always becomes a crusher. With two intact claws, initial use of one claw might prompt the animal to use it more than the other throughout the juvenile fourth and fifth stages, causing it to become a crusher.
To test this hypothesis, researchers raised lobsters in the juvenile fourth and fifth stages of development in a laboratory environment in which the lobsters could manipulate oyster chips. (Not coincidentally, at this stage of development lobsters typically change from a habitat where they drift passively to the ocean floor where they have the opportunity to be more active by burrowing in the substratum.) Under these conditions, the lobsters developed asymmetric slaws, half with crusher claws on the left, and half with crusher claws on the right. In contrast, when juvenile lobsters were reared in a smooth tank without the oyster chips, the majority developed two cutter claws. This unusual configuration of symmetrical cutter claws did not change when the lobsters were subsequently placed in a manipulatable environment or when they lost and regenerated one or both claws.
19 the passage is primarily concerned with______.
A drawing an analogy between asymmetry in lobsters and handedness in humans
B developing a method for predicting whether crusher claws in lobsters will appear on the left or right side
C explaining differences between lobsters’ crusher claws and cutter claws
D discussing a possible explanation for the bilateral asymmetry in lobsters
20 each of the following statements about the development of a lobster’s crusher claw is supported by information in the passage except________.
A It can be stopped on one side and begin on the other after the juvenile sixth stage.
B It occurs gradually over a number of stages.
C It is initially apparent in the juvenile sixth stage.
D It can occur even when a prospective crusher claw is removed in the juvenile sixth stage.
21 which of the following experimental results, if observed, would most clearly contradict the findings of Victor Emmel?
A. A left cutter-like claw is removed in the fifth stage and a crusher claw develops on the right side.
B. A left cutter-like claw is removed in the sixth stage and a crusher claw develops on the right side.
C. A left cutter-like claws are removed in the fifth stage and a crusher claw develops on the lift side.
D. Both cutter-like claws are removed in the fifth stage and a crusher claw develops on the left side.
22 It can be inferred that of the two laboratory environments mentioned in the passage, the one with oyster ships was designed to_______.
A prove that the presence of oyster chips was not necessary for the development of a crusher claw
B prove that the relative length of time that the lobsters were exposed to the oyster-chip environment had little impact on the development of a crusher claw
C eliminate the environment as a possible influence in the development of a crusher claw
D simulate the conditions that lobsters encounter in their natural environment
23 It can be inferred from the passage that one difference between lobsters in the earlier stages of development and those in the juvenile fourth and fifth stages is that lobsters in the early stages are________.
A likely to be less active
B likely to be less symmetrical
C more likely to lose a claw
D more likely to regenerate a lost claw
24 which of the following conditions does the passage suggest is a possible cause for the failure of a lobster to develop a crusher claw?
A the loss of a claw during the third or earlier stage of development
B the loss of a claw during the fourth or fifth stage of development
C the loss of a claw during the sixth stage of development
D Development in an environment short of material that can be manipulated
25 the author regards the idea that differentiation is triggered randomly when paired claws remain intact as________.
A irrefutable considering the authoritative nature of Emmel’s observations
B likely in view of present evidence
C contradictory to conventional thinking on lobster-claw differentiation
D purely speculative because it is based on scattered research and experimentation

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