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6.06+【1-2】
6.06+【1-2】
1. Beverage company representative: The plastic rings that hold six-packs of beverage cans together pose a threat to wild animals, which often become entangled in the discarded rings and suffocate as a result. Following our lead, all beverage companies will soon use only those rings consisting of a new plastic that disintegrates after only three days’ exposure to sunlight. Once we all complete the switchover from the old to the new plastic rings, therefore, the threat of suffocation that plastic rings pose to wild animals will be eliminated. Which one of the following, if true, most seriously weakens the representative’s argument? (A) The switchover to the new plastic rings will take at least two more years to complete. (B) After the beverage companies have switched over to the new plastic rings, a substantial number of the old plastic rings will persist in most aquatic and woodland environments. (C) The new plastic rings are slightly less expensive than the old rings. (D) The new plastic rings rarely disintegrate during shipping of beverage six-packs because most trucks that transport canned beverages protect their cargo from sunlight. (E) The new plastic rings disintegrate into substances that are harmful to aquatic animals when ingested in substantial quantities by them.
Background Information: The plastic rings that hold six-packs of beverage cans together pose a threat to wild animals. Premise: All beverage companies will soon use the new rings that disintegrate after only three days’ exposure to sunlight. Conclusion: Once we all complete the switchover form the old to the new one, the threat of suffocation that plastic rings pose to wild animals will be eliminated.
推测(Prephrase: mentally formulate your answer to the question stem):
The old plastic rings still exist.
选项分析:选B
2. Tiger sharks are common in the waters surrounding Tenare Island. Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare's beaches. This has hurt Tenare's tourism industry, which is second only to its fishing industry in annual revenues. In order to help the economy, therefore, the mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches. Which of the following, if true, most strongly calls into question the likelihood that implementation of the mayor's proposal will have the desired consequence? (A) Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists. (B) Business owners who depend on tourism are willing to pay most of the cost of implementing the program. (C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions. (D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island's fisheries. (E) Not all tourists who come to Tenare Island enjoy swimming or surfing.
Background Information: Tiger sharks are common in the waters surrounding Tenare Island. Premise: Sometimes tiger sharks attacked tourists swimming and surfing at Tenare’s beaches. This has hurt Tenare’s tourism industry.
Conclusion: The mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches in order to help the economy.
推测(Prephrase: mentally formulate your answer to the question stem):
The economy actually will suffer damage.
Eg:Tiger shark↓→small shark↑→fish↓→hurt the economy
选项分析:选D
3. The country of Ertland has never imported apples in any significant quantity because consumers there generally prefer the unique texture of Ertland-grown apples. Nevertheless, apple growers from Kosolia, a neighboring country, plan to sell their apples in Ertland by selling Kosolia-grown apples at half the price of local apples and promoting them as a nourishing, low-cost alternative. Which of the following, if true, casts most doubt on the viability of the plan by Kosolia's apple growers to sell their apples in Ertland? (A) Most of the varieties of apples grown in Ertland were originally derived from common Kosolian varieties. (B) Consumers in Ertland tend to spend about the same proportion of their income on fresh fruits and vegetables as do consumers in Kosolia. (C) At times in the past, Ertland has exported significant quantities of apples to Kosolia. (D) Some varieties of apples grown in Kosolia can be harvested throughout most of the year, whereas the varieties grown in Ertland can be harvested only during two months of the year. (E) Profiles of Ertland-grown apples are high enough in Ertland that growers, wholesalers, and retailers there could easily afford to reduce the price at which these apples are sold.
Background Information: The country of E has never imported apples in any significant quantity.
Premise: K plans to sell their apples in E by selling K-grown apples at half the price of local apples. Conclusion: K promotes their apples as a nourishing, low-cost alternative. 选项分析:选E
4. As part of major renovations to Flowertown's Main Street train station, consultants to the train company proposed moving the station's entrance from its current valuable Main Street location to a low-rent adjoining side street and then leasing the high-rent entrance space to retail businesses. In that way, the train company could easily pay for those and all other proposed renovations without negative impact on its tight budget. Which of the following, if true, would most strongly support the consultants' proposal? (A) More train commuters are employed in businesses located on Main Street than in businesses located on the adjoining side street. (B) A reliable survey of Flowertown's commuters showed that virtually none of them would use the train any less frequently if the station's entrance were moved. (C) The high-rent block of Flowertown's Main Street includes several buildings whose owners currently seek to replace long-standing tenants lost in recent months. (D) If the station's entrance were moved, the train company would need to begin costly renovations to its Main Street entrance space. (E) Ridership on Flowertown trains declined only slightly from 1970 to 1985 while other train companies lost large numbers of commuters.
Background Information: The Main Street train station is introducing renovation. Premise: The train company proposed moving the station’s entrance from Main Street to a low-rent side street and lent the high-rent entrance space to retail businesses. Conclusion: The train company could easily pay for those and all other proposed renovations without negative impact on its tight budget.
推测(Prephrase: mentally formulate your answer to the question stem): The train company can maintain the customers.
选项分析:选B
5. Automobile Dealer's Advertisement: The Highway Traffic Safety Institute reports that the PZ 1000 has the fewest injuries per accident of any car in its class. This shows that the PZ 1000 is one of the safest cars available today. Which of the following, if true, most seriously weakens the argument in the advertisement? (A) The Highway Traffic Safety Institute report listed many cars in other classes that had more injuries per accident than did the PZ 1000. (B) In recent years many more PZ 1000s have been sold than have any other kind of car in its class. (C) Cars in the class to which the PZ 1000 belongs are more likely to be involved in accidents than are other types of cars. (D) The difference between the number of injuries per accident for the PZ 1000 and that for other cars in its class is quite pronounced. (E) The Highway Traffic Safety Institute issues reports only once a year.
Background Information: The Highway Traffic Safety Institute makes a report. Premise: The PZ 1000 has the fewest injuries per accident of any car in its class. Conclusion: The PZ 1000 is one of the safest cars available today.
推测(Prephrase: mentally formulate your answer to the question stem): The PZ 1000 is more likely to be involved in accidents than other types of cars. 选项分析:选C
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