GMAT逻辑题目:

　　A scientific theory is a good theory if itsatisfies two requirements: it must accurately describe a large class ofobservations in terms of a model that is simple enough to contain only a fewelements, and it must make definite predictions about the results of futureobservations. For example, Aristotle’s cosmological theory, which claimed thateverything was made out of four elements---earth, air, fire, andwater---satisfied the first requirement, but it did not make any definitepredictions. Thus, Aristotle’s cosmological theory was not a good theory.

　　If all the statements in the passage aretrue, each of the following must also be true EXCEPT:

　　A. Predictionabout the results of future observations must be made by any good scientifictheory

　　B. Observationof physical phenomena was not a major concern in Aristotle’s cosmologicaltheory.

　　C. Forelements can be the basis of a scientific model that is simple enough to meetthe simplicity criterion of a good theory.

　　D. Ascientific model that contains many elements is not a good theory.

　　E. Aristotle’scosmological theory described a large class of observations in terms of onlyfour elements.

　　参考答案：B

　　思路：After analysis , we can find that thereasoning in this argument is that:

　　1> itmust accurately describe a large class of observations in terms of a model thatis simple enough to contain only a few elements and

　　2> it must make definitepredictions about the results of future observations. A scientific theory isa good theory

　　So , we can find all of choices except Bsatisfied with the original meaning.

　　B is not mentioned in this argument , so wecan conclude whether B is also true.

　　So B is the best answer.

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