Admission Tests GRE 問題集

質問 1：
A law has been proposed requiring the cargo boxes of trucks carrying gravel to be covered by a tarpaulin, because vehicles driving close behind open-topped gravel trucks can be damaged by gravel (lying off these trucks. The law is unlikely to substantially reduce such damage, however: flying gravel is much less likely to come from the cargo box itself than from the grooves of the tires, in which gravel can become wedged during loading.
Which of the following, if true, provides the strongest support for the argument given?
A. Because of the great weight of a load of gravel, the driver of a gravel truck is often driving much more slowly than most of the other vehicles on the road.
B. The drivers of vehicles behind a gravel truck are more likely to remain close behind the truck if the truck's cargo box is covered than if it is uncovered.
C. Most trucks that carry gravel already carry tarpaulins that their drivers use to cover the cargo box when they are carrying sand, which can blow out of the cargo box in significant quantities.
D. Of all the damage that occurs to vehicles on the highway, debris that flies oft* tracks is the cause of only a very small fraction.
E. The proposed law allows open-topped trucks on the highway to haw uncovered cargo boxes whenever their cargo boxes are empty.
正解：B

質問 2：
Instances of "galactic cannibalism"-mergers in which large galaxies completely consume smaller ones-may be fairly common. Tidal forces produced by the Milky Way's powerful gravity, for example, appear to be dismantling and engulfing a dwarf galaxy in the constellation Sagittarius, producing large clumps and streamers of stars connecting the two galaxies. Astronomers have also observed two dense clusters of stars and gas at the heart of the Andromeda galaxy, an apparent "double nucleus" that may contain the remnant of a cannibalized dwarf galaxy. But this twin-lobed appearance could also be created by two parts of a single nucleus bisected by a lane of dust. Scientists believe that only about 25 percent of such apparent double nuclei actually represent galactic cannibalism. Many of the rest result from the illusion of proximity that occurs when objects at different distances appear along the same line of sight: others consist of debris from galactic
"collisions." in which one galaxy has passed through another without merging, causing waves of new star formation.
The primary purpose of the passage is to
A. suggest that galactic cannibalism occurs more commonly than previously supposed
B. outline the process by which galactic cannibalism takes place
C. demonstrate flaws in the evidence used to prove that galactic cannibalism actually occurs
D. indicate the difficulty of determining whether galactic cannibalism has occurred in a given instance
E. present evidence that galactic cannibalism has occurred in a given instance
正解：C

質問 3：
Normally, seeds of Emmenathe penduliflora stay dormant for years and germinate only when a fire burns through their habitat. Nitrogen dioxide in the smoke induces the seeds to germinate. Fires clear the brush, allowing germinating seeds to receive the sunlight they need to grow. The plants mature quickly, produce seeds, and then die. In areas with heavy automobile traffic, however, the seed germinates in the absence of lire, with automobile exhaust supplying the required nitrogen dioxide.
The information given, if accurate, most strongly supports which of the following hypotheses?
A. If human intervention decreases the number of fires in the habitat off. pendulijlora. automobile exhaust can replicate the conditions the plant requires in order to thrive.
B. The nitrogen dioxide in automobile exhaust eannot harm plants of E. pendulijlora after germination.
C. Within the habitat of E. pendulijlora . natural fires are significantly more frequent in areas with heavy automobile traffic than they are in other areas.
D. Unless E. pendulijlora seeds that have germinated can survive in the shade, automobile exhaust threatens the long-term survival of the plant in areas with heavy automobile traffic.
E. Fires in the habitat of E. pendulijlora do not entirely destroy the plant's seeds even in the places where the fires burn most intensely.
正解：A

質問 4：
Female Australian Dunatothrips [small, sap-sucking insects] create tent-like structures on the surface of leaves to protect themselves and their eggs and larvae from desiccation in the arid Australian climate. Bono and Crespi compared survival and reproduction of thrips tliat founded structures alone with those in groups of two or more individuals. They found that although per capita egg production fell with increasing group size, foundresses were more likely to survive and lay eggs in groups than when alone. Several studies of other species of nest-building insects have concluded that foundress associations are beneficial to all parties. It is likely that the relative success of groups is at least in part accounted for by a reduction of energy use in the modification of a shared nest.
According to the passage. Bono and Crespi's findings showed that
A. solitary thrips on average lay more eggs than thrips that founded structures in groups
B. group size in Australian Dunatothrips can be expected to vary from year to year depending in part on the aridity of the climate
C. foundresses in groups of two or three tended to survive longer than foundresses in larger groups of thrips
D. structures built by foundresses working collectively tend to be larger than those built by solitary foundresses
E. the relationship between per capita egg production and group size in Australian Dunatothrips is different from that in other species
正解：A

質問 5：
The politician's record while in office, though (i)_________- hardly accounts for her high standing three decades later
-a standing all the more (it)_________because of continuing assaults on her reputation during those years.
A. admirable
B. unusual regrettable
C. bewildering
D. persistent
E. unappreciated
正解：A,B