kuaijizu

Film Director:  It is true that certain characters and plot twists in my newly released film The Big Heist are strikingly similar to characters and plot twists in Thieves, a movie that came out last year.  Based on these similarities, the film studio that produced Thieves is now accusing me of taking ideas from that film.  The accusation is clearly without merit.  All production work on The Big Heist was actually completed months before Thieves was released.
Which of the following, if true, provides the strongest support for the director's rejection of the accusation?
(A) Before Thieves began production, its script had been circulating for several years among various film studios, including the studio that produced The Big Heist.
(B) The characters and plot twists that are most similar in the two films have close parallels in many earlier films of the same genre.
(C) The film studio that produced Thieves seldom produces films in this genre.
(D) The director of Thieves worked with the director of The Big Heist on several earlier projects.
(E) The time it took to produce The Big Heist was considerably shorter than the time it took to produce Thieves.
答案为B。做题时仔细阅读每个选项。B选项很复杂故很可能正确。A,E项反而削弱了rejection，C,E项则与rejection无关。

kuaijizu

An unusually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984.  Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.
Which of the following statements, if true, most seriously weakens the argument above?
(A) The cooling effect triggered by volcanic eruptions in 1985 was counteracted by an unusual warming of Pacific waters.
(B) There is a strong statistical link between volcanic eruptions and the severity of the rainy season in India.
(C) A few months after El Chichn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term weather trends.
(D) The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.
(E) Three months after an early springtime eruption in South America during the late 19th century, sea surface temperatures near the coast began to fall.
答案为C。本题就是很简单的通过举反例来削弱原结论。A,D,E选项反而加强了原结论。

kuaijizu

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.
答案为A。你必须知道hereditary的意思是“遗传的”。A中对classical migraines和common migraines做了比较。

kuaijizu

To prevent harbor porpoises from getting tangled in its nets and suffocating, a fishing company installed acoustic alarms on all its boats that fish in waters off Massachusetts.  The sound emitted temporarily disorients the porpoises and frightens them away.  Since the installation of the alarms, the average number of porpoises caught in the company's nets has dropped from eight to one per month.  The alarms, therefore, are saving the lives of harbor porpoises in those waters.
Which of the following is an assumption on which the argument depends?
(A) The use of acoustic alarms increases the number of commercial fish caught by the fishing company's boats.
(B) When disoriented, harbor porpoises are not significantly more likely to be killed by other boats.
(C) Environmentalists advocate the use of acoustic alarms as a means of protecting the harbor porpoise population.
(D) The alarms were installed at the time of year when harbor porpoises are most plentiful in the Massachusetts waters.
(E) The cost of installing acoustic alarms on fishing boats is less than the cost of repairing nets damaged by harbor porpoises.
答案为B。仔细阅读原文，用文章的前边解释文章的后边——原文中提到了disorient是该措施的原理。

kuaijizu

The symptoms that United States President Zachary Taylor began showing five days before his death are consistent with arsenic poisoning.  Recent examination of Taylor's bones, however, revealed levels of arsenic comparable to those found in the bones of Taylor's contemporaries.  These levels are much lower than the levels of arsenic that remain in the bones of arsenic poisoning victims who live for more than a day after ingesting a lethal dose of the poison.
Which of the following is most strongly supported by the statements given?
(A) The symptoms that Taylor began showing five days before his death are consistent with poisoning other than arsenic poisoning.
(B) Taylor's death was not the result of any kind of poisoning.
(C) The symptoms that Taylor began showing five days before his death were not caused by a lethal dose of arsenic.
(D) The symptoms that Taylor began showing five days before his death grew more severe each day.
(E) It is unusual for a person who has ingested a lethal dose of arsenic to survive for more than a day.
答案为C。more than one day作者想表达的意思是时间很短而非很长。选项E错误的原因是没有做信息的结合。

kuaijizu

Traveler:  Southern Airways has a far worse safety record than Air Dacentaria over the past few years, in terms of both the frequency of accidents and the severity of accidents.  Therefore, although Air Dacentaria is slightly more expensive, I will choose it over Southern Airways for my flight from Pederton to Dacenta, since it is worth paying extra to have a safer flight.
Which of the following, if true, casts the most serious doubt on the traveler's argument?
(A) Air Dacentaria's flight from Pederton to Dacenta is nonstop, whereas Southern Airways' flight touches down in Gorinda on the way.
(B) Most Southern Airways flights, but not its flight from Pederton to Dacenta, use Sarmouth airport, which because of its mountainous location is one of the world's most dangerous.
(C) For its flights from Pederton to Dacenta, Southern Airways uses a different model of airplane, with a smaller capacity, than the model Air Dacentaria uses for its flights on the same route.
(D) Only in the last few years has the cost of flying from Pederton to Dacenta been more expensive on Air Dacentaria than on Southern Airways.
(E) Although the frequency of accidents is greater on Southern Airways, on both airlines the proportion of flights that have accidents is very small.
答案为B。正确答案一定是削弱比较的差距或者提出另外一方面的比较，该选项中的its指代Sarmouth airport。

kuaijizu

The use of radar detectors in commercial vehicles was banned because commercial truck and bus drivers were using these devices to drive faster than the posted speed limit without fear of arrest.  Since drivers of noncommercial vehicles also use radar detectors and since speeding decreases safety for any vehicle, use of radar detectors should also be banned in noncommercial vehicles to increase safety.
Which of the following, if true, most strongly supports the argument above?
(A) The average noncommercial-vehicle driver is involved in less long-distance driving than is the average commercial-vehicle driver.
(B) In many places airplanes or helicopters are used rather than radar to locate vehicles traveling faster than the posted speed limit.
(C) The ban on radar detectors in commercial vehicles has been effective in deterring them from speeding.
(D) Traffic accidents involving a truck or bus generally pose a greater threat of injury or death than do other accidents.
(E) Radar detectors are sometimes set off by devices other than the law enforcement devices that the radar detectors were built to detect.
答案为C。注意原文让你加强的是“非商用车也应该被禁止安装雷达”，而选项D中的truck or bus属于商用车，与结论无关。

kuaijizu

The imposition of quotas limiting imported steel will not help the big American steel mills.  In fact, the quotas will help "mini-mills" flourish in the United States.  Those small domestic mills will take more business from the big American steel mills than would have been taken by the foreign steel mills in the absence of quotas.
Which of the following, if true, would cast the most serious doubt on the claim made in the last sentence above?
(A) Quality rather than price is a major factor in determining the type of steel to be used for a particular application.
(B) Foreign steel mills have long produced grades of steel comparable in quality to the steel produced by the big American mills.
(C) American quotas on imported goods have often induced other countries to impose similar quotas on American goods.
(D) Domestic "mini-mills" consistently produce better grades of steel than do the big American mills.
(E) Domestic "mini-mills" produce low-volume, specialized types of steel that are not produced by the big American steel mills.
答案为E。原文结论表达的意思是“在没有配额的情况下，small mills会比foreign mill接管更多big mill的生意”。

kuaijizu

Half of the subjects in an experiment--the experimental group--consumed large quantities of a popular artificial sweetener.  Afterward, this group showed lower cognitive abilities than did the other half of the subjects--the control group--who did not consume the sweetener.  The detrimental effects were attributed to an amino acid that is one of the sweetener's principal constituents.
Which of the following, if true, would best support the conclusion that some ingredient of the sweetener was responsible for the experimental results?
(A) Most consumers of the sweetener do not consume as much of it as the experimental group members did.
(B) The amino acid referred to in the conclusion is a component of all proteins, some of which must be consumed for adequate nutrition.
(C) The quantity of the sweetener consumed by individuals in the experimental group is considered safe by federal food regulators.
(D) The two groups of subjects were evenly matched with regard to cognitive abilities prior to the experiment.
(E) A second experiment in which subjects consumed large quantities of the sweetener lacked a control group of subjects who were not given the sweetener.
答案为D。注意看清题目让你支持的conclusion到底是什么。

kuaijizu

The recent decline in the value of the dollar was triggered by a prediction of slower economic growth in the coming year.  But that prediction would not have adversely affected the dollar had it not been for the government's huge budget deficit, which must therefore be decreased to prevent future currency declines.
Which of the following, if true, would most seriously weaken the conclusion about how to prevent future currency declines?
(A) The government has made little attempt to reduce the budget deficit.
(B) The budget deficit has not caused a slowdown in economic growth.
(C) The value of the dollar declined several times in the year prior to the recent prediction of slower economic growth.
(D) Before there was a large budget deficit, predictions of slower economic growth frequently caused declines in the dollar's value.
(E) When there is a large budget deficit, other events in addition to predictions of slower economic growth sometimes trigger declines in currency value.
答案为D。注意本题让你削弱的是“政府降低budget deficit可以减少货币贬值”，因此正确答案一定是关于budget deficit的。