这是我错的几道xy2里的CR题。
蛋白质能帮我讲下你的解题思路吗？
Q2:
Hunter: Hunters alone are blamed for the decline in laceName>GreenrocklaceName> laceType>National ForestlaceType>’s deer population over the past ten years. Yet clearly, black bears have also played an important role in this decline. In the past ten years, the forest’s protected black bear population has risen sharply, and examination of black bears found dead in the forest during the deer hunting season showed that a number of them had recently fed on deer.
In the hunter’s argument, the boldface portion plays which of the following roles?
- It is the main conclusion of the argument.
- It is an objection that has been raised against the main conclusion of the argument.
- It is a judgment that the argument opposes.
- It is a finding that the argument seeks to explain.
- It provides evidence in support of the main conclusion of the argument.
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Q9:
Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo. Consumer psychologists hypothesize that simply seeing a credit-card logo makes many credit-card holders willing to spend more because it reminds them that their spending power exceeds the cash they have immediately available.
Which of the following, if true, most strongly supports the psychologists’ interpretation of the studies?
- The effect noted in the studies is not limited to patrons who have credit cards.
- Patrons who are under financial pressure from their credit-card obligations tend to tip less when presented with a restaurant bill on a tray with credit-card logo than when the tray has no logo.
- In virtually all of the cases in the studies, the patrons who paid bills in cash did not possess credit cards.
- In general, restaurant patrons who pay their bills in cash leave larger tips than do those who pay by credit card.
- The percentage of restaurant bills paid with given brand of credit card increases when that credit card’s logo is displayed on the tray with which the bill is prepared.
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Q17:
Brochure: Help conserve our city’s water supply. By converting the landscaping in your yard to a water-conserving landscape, you can greatly reduce your outdoor water use. A water-conserving landscape is natural and attractive, and it also saves you money.
Criticism: For most people with yards, the savings from converting to a water-conserving landscape cannot justify the expense of new landscaping, since typically the conversion would save less than twenty dollars on a homeowner’s yearly water bills.
Which of the following, if true, provides the best basis for a rebuttal of the criticism?
- Even homeowners whose yards do not have water-conserving landscapes can conserve water by installing water-saving devices in their homes.
- A conventional landscape generally requires a much greater expenditure on fertilizer and herbicide than does a water-conserving landscape.
- A significant proportion of the residents of the city live in buildings that do not have yards.
- It costs no more to put in water-conserving landscaping than it does to put in conventional landscaping.
- Some homeowners use more water to maintain their yards than they use for all other purposes combined.
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Q32:
Newspaper editorial:
In an attempt to reduce the crime rate, the governor is getting tough on criminals and making prison conditions harsher.  art of this effort has been to deny inmates the access they formerly had to college-level courses. However, this action is clearly counter to the governor’s ultimate goal, since after being released form prison, inmates who had taken such courses committed far fewer crimes overall than other inmates.
Which of the following is an assumption on which the argument depends?
A. Not being able to take college-level courses while in prison is unlikely to deter anyone from a crime that he or she might otherwise have committed.
B. Former inmates are no more likely to commit crimes than are members of the general population.
C. The group of inmates who chose to take college-level courses were not already less likely than other inmates to commit crimes after being released.
D. Taking high school level courses in prison has less effect on an inmate’s subsequent behavior than taking college-level courses does.
E. The governor’s ultimate goal actually is to gain popularity by convincing people that something effective is being done about crime.
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Q38:
Kate: The recent decline in numbers of the Tennessee warbler, a North American songbird that migrates each fall to coffee plantations in South America, is due to the elimination of the dense tree cover that formerly was a feature of most South American coffee plantations.
Scott: The population of the spruce budworm, the warbler’s favorite prey in North America, has been dropping. This is a more likely explanation of the warbler’s decline.
Which of the following, if true, most seriously calls Scott’s hypothesis into question?
- The numbers of the Baltimore oriole, a songbird that dose not eat budworms but is as dependent on South American coffee plantations as is the Tennessee warbler, are declining.
- The spruce-budworm population has dropped because of a disease that can infect budworms but not Tennessee warblers.
- The drop in the population of the spruce budworm is expected to be only temporary.
- Many Tennessee warbler have begun migrating in the fall to places other than traditional coffee plantations.
- Although many North American songbirds have declined in numbers, no other species has experienced as great a decline as has the Tennessee warbler.
[此贴子已经被作者于2005-10-21 8:46:53编辑过] | 
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发表于 2005-10-20 12:22:00
要从头开始了！
楼主
