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大家走来这么久不容易，一定要坚持住阿，曙光在前面！！！
[精练]
2. Medical doctor: Sleep deprivation is the cause of
many social ills, ranging from irritability to
potentially dangerous instances of impaired
decision making. Most people today suffer
from sleep deprivation to some degree.
Therefore we should restructure the workday to
allow people flexibility in scheduling their
work hours.
Which one of the following, if true, would most
strengthen the medical doctor’s argument?
(A) The primary cause of sleep deprivation is
overwork.
(B) Employees would get more sleep if they had
greater latitude in scheduling their work
hours.
(C) Individuals vary widely in the amount of sleep
they require.
(D) More people would suffer from sleep
deprivation today than did in the past if the
average number of hours worked per week
had not decreased.
(E) The extent of one’s sleep deprivation is
proportional to the length of one’s workday.
[PREP练习]
25. (30469-!-item-!-188;#058&005456)
In the past year Harborville has had an unusually high rate of new cases of a certain disease. An investigation revealed that over the past five years Harborville's public water supply has had a high level of pollutants. Medical researchers have hypothesized that Harborville's water is responsible for the high rate of new cases of the disease.
Each of the following, if true, provides additional support for the researchers' hypothesis EXCEPT:
(A) Most of the people afflicted with new cases of the disease had regularly drunk larger quantities of Harborville's water than had other Harborville residents.
(B) The same type of pollutants that were found in Harborville's water have independently been linked to occurrences in other towns of high rates of the disease.
(C) Some of the people with newly diagnosed cases of the disease began to develop the disease before Harborville's water became polluted.
(D) The rate of new cases of the disease among residents of Harborville who get their water from private sources is not unusually high.
(E) Towns with geographic and demographic characteristics similar to those of Harborville but without polluted water do not have as high a rate of the disease as does Harborville.
26. (30517-!-item-!-188;#058&005463)
A new commercial radio station in Greenfield plans to play songs that were popular hits fifteen to twenty-five years ago. It hopes in this way to attract an audience made up mainly of people between thirty-five and forty-five years old and thereby to have a strong market appeal to advertisers.
Each of the following, if true, strengthens the prospects that the radio station's plan will succeed EXCEPT:
(A) People tend to remain very fond of the music that they heard when they were in their teens and early twenties.
(B) In a number of cities demographically similar to Greenfield, radio stations that play recordings of popular music from fifteen to twenty-five years ago have succeeded commercially.
(C) People in the thirty-five- to forty-five-year-old age group are more likely to listen to the radio for news than for music.
(D) The thirty-five- to forty-five-year-old age group is one in which people tend to have comparatively high levels of income and are involved in making household purchases.
(E) Among the few radio stations in the Greenfield area, there is none that plays music from this particular period for more than a few hours per week.
27. (30565-!-item-!-188;#058&005567)
Among people who experience migraine headaches, some experience what doctors call "common" migraines, whereas others experience "classical" migraines. Siblings and spouses of common migraine sufferers are themselves twice as likely as the general population to experience common migraines. Siblings of classical migraine sufferers are four times more likely than the general population to experience classical migraines, whereas spouses of classical migraine sufferers are no more likely than the general population to experience such headaches.
The information above provides the most support for which of the following hypotheses?
(A) Susceptibility to classical migraines is more dependent on hereditary factors than is susceptibility to common migraines.
(B) Unmarried adults are more likely to suffer from classical migraines than they are to suffer from common migraines.
(C) People who do not experience migraine headaches are unlikely to have spouses who are migraine headache sufferers.
(D) Children of people who suffer from common migraines are not more likely than the general population to experience a common migraine.
(E) Between one-quarter and one-half of the general population suffer from either common or classical migraine headaches.
28. (30615-!-item-!-188;#058&005660)
Hutonian Government Official: Federal law requires truck drivers to take a long break after driving for ten hours, but truck drivers frequently do not comply. Since the public rest areas along our highways cannot accommodate all the drivers needing a break, we plan to build more rest areas to increase the rate of compliance.
Hutonian Business Representative: But if the parking lots around our businesses are considered, there are more than enough parking places.
Which of the following, if true about Hutonia, would provide a reason for persisting with the government official's plan despite the objection?
(A) Public parking areas are evenly distributed along the highways.
(B) Truck drivers are most likely not to comply with the federal law if the total time required for a trip exceeds ten hours by less than an hour.
(C) In comparison to public rest areas, private parking lots near highways tend to be time-consuming for drivers to reach.
(D) Even when rest areas are available, some truck drivers park in places, such as highway access ramps, where their trucks are likely to cause accidents.
(E) Some public parking areas, particularly those on heavily traveled roads, are substantially larger than others. |
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发表于 2011-12-13 23:29:30
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