名师总结：GMAT逻辑思维训练题型汇总

　　1. The ice on the front windshield of the car had formed when moisture condensed during the night. The ice melted quickly after the car was warmed up the next morning because the defrosting vent, which blows only on the front windshield, was turned on full force.

　　Which of the following, if true, most seriously jeopardizes the validity of the explanation for the speed with which the ice melted?

　　A) The side windows had no ice condensation on them

　　B) Even though no attempt was made to defrost the back window, the ice there melted at the same rates as did the ice on the front windshield.

　　C) The speed at which ice on a window melts increases as the temperature of the air blown on the window increases.

　　D) The warm air from the defrosting vent for the front windshield cools rapidly as it dissipates through out the rest of the car.

　　E) The defrosting vent operates efficiently even when the heater, which blows warm air toward the feet or faces of the driver and passengers, is on.

　　2. Pandas are rapidly disappearing from the wild. Therefore, in order to preserve the species, existing pandas should be captured and placed in zoos around the world.

　　Which of the following, if true, casts doubt on the conclusion drawn above?

　　A) When in captivity, pandas typically produce more young than they do in their native habitat

　　B) Newborn pandas in zoos are not likely to die from infectious diseases, whereas newborn pandas in the wild are likely to die from these diseases.

　　C) Sufficient quantities of bamboo, the panda’s only food cannot be made available outside the panda’s native habitat.

　　D) Many zoos are eager to increase their stock of rare and exotic animals, but there are not enough pandas for all the zoos that want one.

　　E) Pandas in zoos have as many offspring that survive to adulthood as do pandas in the wild.

　　3. Over the past fifteen years, the largely urbanized Northeastern United States has shown more and more the influence of the Southwestern portion of the county. Once, very few people in New York City could be found sorting cowboy boots and Stetson hats, and no major radio station boasted twenty-four-hour-a-day programming of country and western music. The latest development is the rapid proliferation of restaurants serving chili, nachos, burritos, and other Tex-Mex dishes.

　　The passage above makes which of the following assumptions?

　　A) The lifestyle of people in the Northeast has been enriched by the influence of the Southwestern states.

　　B) Most residents of the Southwestern states regularly eat at Tex-Mex restaurants.

　　C) Over the last fifteen years, residents of the Southwestern United States have increasingly adopted lifestyles similar to those of the Northeast.

　　D) Tex-Mex dishes are an element of the regional cuisine of the Southwestern states.

　　E) People in the Northeastern United States eat out more frequently than they did fifteen years ago.

　　4. Popular culture in the United States has become Europeanized to an extent unimaginable twenty-five years ago. Not many people then drank wine with meals, and no one drank important mineral water. No idea would have been more astonishing than that Americans would pay to watch soccer games. Such thoughts arise because of a report that the American Association of State Highway and Transportation Officials has just adopted a proposal to develop the country’s first comprehensive interstate system of routes for bicycles.

　　Which of the following inferences is best supported by the passage?

　　A) Long-distance bicycle routes are used in Europe.

　　B) Drinking imported mineral water is a greater luxury than drinking imported wine.

　　C) United States culture has benefited from exposure to foreign ideas.

　　D) Most Europeans make regular use of bicycles.

　　E) The influence of the United States on European Culture has assumed unprecedented proportions in the last twenty-five years.

　　5. “On the whole,” Ms. Winson remarked, “engineering students are lazier now than they used to be. I know because fewer and fewer of my students regularly do the work they are assigned.”

　　The conclusion drawn above depends on which of the following assumptions?

　　A) Engineering students are working less because, in a booming market, they are spending more and more time investigating different job opportunities.

　　B) Whether or not students do the work they are assigned is a good indication of how lazy they are.

　　C) Engineering students should work harder than students in less demanding fields.

　　D) Ms. Winson’s students are doing less work because Ms. Winson is not as effective a teacher as she once was.

　　E) Laziness is something most people do not outgrow.

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