GMAT模拟试题之逻辑题目
GMAT逻辑是考试中的重要题型,考生在备考的过程中要多加练习。下面是小编为大家整理收集的关于GMAT模拟试题之逻辑题目的相关内容,希望对大家有所帮助。
During construction of the Quebec Bridge in 1907, the bridge’s designer, Theodore Cooper, received Word that the suspended span being built out from the bridge’s cantilever was deflecting downward by a fraction of an inch. Before he could telegraph to freeze the project, the whole cantilever arm broke off and plunged, along with seven dozens workers, into the St. Lawrence River. It was the worst bridge construction disaster in history. As a direct result of the inquiry that followed, the engineering “rules of thumb” by which thousands of bridges had been built went down with the Quebec Bridge. Twentieth-century bridge engineers would thereafter depend on far more rigorous applications of mathematical analysis.
Which one of the following statements can be properly inferred from the passage?
(A) Bridges built before about 1907 were built without thorough mathematical analysis and, therefore, were unsafe for the public to use.
(B) Cooper’s absence from the Quebec Bridge construction site resulted in the breaking off of the cantilever.
(C) Nineteenth-century bridge engineers relied on their rules of thumb because analytical methods were inadequate to solve their design problems.
(D) Only a more rigorous application of mathematical analysis to the design of the Quebec Bridge could have prevented its collapse.
(E) Prior to 1907 the mathematical analysis incorporated in engineering rules of thumb was insufficient to completely assure the safety of bridges under construction.
22. Most children find it very difficult to explain exactly what the words they use mean when those words do not refer to things that can be seen or touched. Yet since children are able to use these words to convey the feelings and emotions they are obviously experiencing, understanding what a word means clearly does not depend on being able to explain it.
Which one of the following principles, if accepted, would provide the most justification for the conclusion?
(A) The fact that a task is very difficult for most people does not mean that no one can do it.
(B) Anyone who can provide an exact explanation of a word has a clear understanding of what that word means.
(C) Words that refer to emotions invariably have less narrowly circumscribed conventional meanings than do word that refer to physical objects.
(D) When someone appropriately uses a word to convey something that he or she is experiencing, that person understands what that word mean.
(E) Words can be explained satisfactorily only when they refer to things that can be seen or touched.
Questions 23- 24
The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twin’s brain are smaller than corresponding areas in the brain of the unaffected twin. No such differences are found when neither twin is schizophrenic. Therefore, this discovery provides definitive evidence that schizophrenia is caused by damage to the physical structure of the brain.
23. Which one of the following is an assumption required by the argument?
(A) The brain of person suffering from schizophrenia is smaller than the brain of anyone not suffering from schizophrenia.
(B) The relative smallness of certain parts of the brains of schizophrenics is not the result of schizophrenia or of medications used in its treatment.
(C) The brain of a person with an identical twines is no smaller, on average, than the brain of person who is not a twin.
(D) When a pair of identical twins both suffer from schizophrenia, their brains are the same size.
(E) People who have an identical twin are no more likely to suffer from schizophrenia than those who do not.
24. If the statements on which the conclusion above is based are all true, each of the following could be true EXCEPT:
(A) People who lack a genetic susceptibility for the disease will not develop schizophrenia.
(B) Medications can control most of the symptoms of schizophrenia in most patients but will never be able to cure it.
(C) The brains of schizophrenics share many of the characteristics found in those of people without the disorder.
(D) It will eventually be possible to determine whether or not someone will develop schizophrenia on the basis of genetic information alone.
(E) Brain abnormalities associated with schizophrenia are the result of childhood viral infections that inhibit the development of brain cells.
25. Sixty adults were asked to keep a diary of their meals, including what they consumed, when, and in the company of how many people. It was found that at meals with which they drank alcoholic beverages, they consumed about 175 calories more from nonalcoholic source than they did at meals with which they did not drink alcoholic beverages.
Each of the following, if true, contributes to an explanation of the difference in caloric intake EXCEPT:
(A) Diners spent a much longer time at meals served with alcohol than they did at those serve without alcohol.
(B) The meals eaten later in the day tended to be larger than those eaten earlier in the day, and later meals were more likely to include alcohol.
(C) People eat more when there are more people present at the meal, and more people tended to be present at meal served with alcohol than at meals served without alcohol.
(D) The meals that were most carefully prepared and most attractively served tended to be those at which alcoholic beverages were consumed.
(E) At meals that included alcohol, relatively more of the total calories consumed came from carbohydrates and relatively fewer of them came from fats and proteins.
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