新GRE阅读考试逻辑题练习

　　6.Stem borers are insect pests that often ruin North American corn crops. On some other continents, crop damage by stem borers is controlled by a certain species of wasp. Since these wasps eat nothing but stem borers, importing them into North America will keep crop damage from stem borers under control without endangering other North American insect species. Which of the following is an assumption on which the argument depends?

　　(A) Corn is the principal food of stem borers that live on continents other than North America.

　　(B) The wasps are capable of surviving in North America long enough to eat significant numbers of stem borers.

　　(C) No wasp in North America is closely related to the species of wasp that eats stem borers.

　　(D) On continent other than North America, the wasps control stem borers more effectively than does any other pest control measure.

　　(E) Corn crops on continents other than North America are not damaged by any insect pests other than stem borers.

　　7.In the country of Laurelia, legal restrictions on the sale of lock-picking equipment were relaxed ten years ago, and since then Laurelia's burglary rate has risen dramatically. Hence, since legally purchased lock-picking equipment was used in most burglaries, reintroducing strict limits on the sale of this equipment would help to reduce Laurelia's burglary rate. Which of the following, if true, gives the strongest support to the argument?

　　(A) Laurelia's overall crime rate has risen dramatically over the last ten years.

　　(B) There is wide popular support in Laurelia for the reintroduction of strict limits on the sale of lock- picking equipment.

　　(C) The reintroduction of strict limits on the sale of lock-picking equipment in Laurelia would not prevent legitimate use of this equipment by police and other public safety officials.

　　(D) Most lock-picking equipment used in Laurelia is fragile and usually breaks irreparably within a few years of purchase.

　　(E) The introduction five years ago of harsher punish- ments for people convicted of burglary had little effect on Laurelia's burglary rate.

　　8.Salesperson：The picture tube is the central com- ponent of any television, and Picturesque tele-

　　visions use the same high-quality picture tubes as those used in TruVue televisions. Since you pay a much lower price for a Picturesque, you pay a lower price for a television with the same picture quality when you buy a Picturesque instead of a TruVue. Which of the following is an assumption that, if justified, would allow the conclusion of the sales- person's argument to be properly drawn?

　　(A) TruVue televisions are much more widely advertised than are Picturesque televisions.

　　(B) The picture quality of a television is determined solely by the quality of its picture tube.

　　(C) A salesperson earns much less on the sale of each Picturesque television than on the sale of each TruVue television.

　　(D) Many more Picturesque televisions are sold each year than TruVue television.

　　(E) Picturesque televisions are assembled in the same factory that assembles TruVue tele- visions.

　　9.As people age, the number of calories they need each day decreases while their daily requirement of vitamin B6 increases. Clearly, unless older people take B6 supplements or eat a diet that contains more B6 than did the diet they ate when they were young adults, there is little likelihood that they will get B6 in needed amounts.Which of the following would be most helpful to know to evaluate the argument?

　　(A) Whether the relative decrease in the daily requirement of calories is greater than the relativeincrease in the daily requirement of vitamin B6.

　　(B) Whether the form of vitamin B6 found in dietary supplements is more readily absorbed andutilized by the body than is the form of this vitamin that is found in food.

　　(C) Whether the consequences of not getting vitamin B6 in required daily amounts are more serious for older people than for young adults.

　　(D) Whether the diets of most people, when they are young adults, include vitamin B6 in amounts far in excess of their daily needs.

　　(E) Whether the diets of older people are more likely than those of young adults to include one or more meals a day that are devoid of foods containing vitamin B6.

　　10.In a recent film set in seventeenth-century Europe, the hero is seen doing the crawl, a swimming stroke not known in Europe before the 1920's.However, since moviegoers obviously are not experts in the history of swimming strokes, for most of the film's audiences this blunder clearly cannot have interfered with whatever sense of historical authenticity the film otherwise achieved. Which of the following, if true, most seriously weakens the argument given?

　　(A) The film was widely praised for being historically plausible, even though it portrayed many events that were not historically attested.

　　(B) The scene that shows the film's hero doing the crawl is a rescue scene pivotal to the film's action, and parts of it are even shown a second time, in a flashback.

　　(C) Makers of historical films, even of those set as recently as the nineteenth century, routinely strike compromises between historical authenticity and the need to keep their material accessible to a modern audience, as in the actors' speech patterns.

　　(D) The crawl that European swimmers used in the 1920's was much less efficient and more awkward-looking than the crawl that is currently taught.

　　(E) A slightly earlier film featuring an eighteenth century sea battle in Europe was ridiculed in numerous popular reviews for the historical lapse of showing a sailor doing the crawl in swimming to safety.

　　11.The government of Pontran claims that Tor City, one of the six major cities in that country, is alone among Pontran's cities in having sustained strong job growth this year. Clearly, however, any job growth this year. Clearly, however, any job growth there must be purely imaginary; in fact, in Tor City and only there, more people are unemployed this year than were last year.The argument countering the government's claim depends on the assumption that：

　　(A) unemployed workers in Pontran did not, in significant numbers, move to Tor City when the government claimed Tor City had strong job growth

　　(B) the unemployment rate in Tor City is higher year than in any previous year

　　(C) actions taken by the government of Pontran significantly affect the unemployment rate in Tor City

　　(D) the unemployment rate in Tor City, though increased, is still the lowest of any city in Pontran

　　(E) there is no significant seasonal variation in the unemployment rate for Pontran as a whole

　　对于新gre阅读题，考生们一定要积极调整心态认真备考，除了题海战术，还要总结新gre阅读题中的思路，找到解题的逻辑思路才是王道。

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