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1，In the United States, of thepeople who moved from one state to another when they retired, the percentagewho retired to Florida has decreased by three percentage points over the pastten years. Since many local businessesin Florida cater to retirees, this decline is likely to have a noticeablynegative economic effect on these businesses.Which of the following, if true,most seriously weakens the argument?
A. Florida attracts more peoplewho move from one state to another when they retire than does any other state.
B. The number of people who moveout of Florida to accept employment in other states has increased over the pastten years.
C. There are far more localbusinesses in Florida that cater to tourists than there are local businessesthat cater to retirees.
D. The total number of people whoretired and moved to another state for their retirement has increasedsignificantly over the past ten years.
E. The number of people who leftFlorida when they retired to live in another state was greater last year thanit was ten years ago.
答案是D。
这个题为什么不选择C呢？
C不是更好削弱了这个题吗？
选C可以这么理解：因为当地主要的商业吸引的是游客而不是退休人员，因此退休人员的减少不会对其经济有很大的影响。
2，In a study conducted inPennsylvania, servers in various restaurants wrote “Thank you” on randomlyselected bills before presenting the bills to their customers. Tips on these bills were an average of threepercentage points higher than tips on bills without the message. Therefore, if servers in Pennsylvania regularly wrote “Thank you” onrestaurant bills, their average income from tips would be significantly higherthan it otherwise would have been.
Which of the following is anassumption on which the argument relies?
A. The “Thank you” messages wouldhave the same impact on regular patrons of a restaurant as they would onoccasional patrons of the same restaurant.
B. Regularly seeing “Thank you”written on their bills would not lead restaurant patrons to revert to theirearlier tipping habits.
C. The written “Thank you” remindsrestaurant patrons that tips constitute a significant part of the income ofmany food servers.
D. The rate at which people tipfood servers in Pennsylvania does not vary with how expensive a restaurant is.
E. Virtually all patrons of thePennsylvania restaurants in the study who were given a bill with “Thank you”written on it left a larger tip than they otherwise would have.
答案是B。
文章的结论是写谢谢的比不写谢谢的小费增加的更多。我理解的B是 写了也不会改变他们的付费习惯，那不就是以前的多，现在也多，以前的少，现在也少吗？
这个逻辑链条我连接不上。
3，Of patients over 65 years old whosurvived coronary bypass surgery—a procedure widely prescribed for people withheart disease—only 75 percent benefited from the surgery. Thus it appears that for one in four such patients, the doctors whoadvised them to undergo this surgery, with its attendant risks and expense,were more interested in an opportunity to practice their skills and in theirfee than in helping the patient.
Which of the following, if true,most seriously undermines the argument?
A. Many of the patients whoreceive coronary bypass surgery are less than 55 years old.
B. Possible benefits of coronarybypass surgery include both relief from troubling symptoms and prolongation oflife.
C. Most of the patients in thesurvey decided to undergo coronary bypass surgery because they were advisedthat the surgery would reduce their risk of future heart attacks.
D. The patients over 65 years oldwho did not benefit from the coronary bypass surgery were as fully informed asthose who did benefit from the surgery as to the risks of the surgery prior toundergoing it.
E. The patients who underwentcoronary bypass surgery but who did not benefit from it were medicallyindistinguishable, prior to their surgery, from the patients who did benefit.
答案是E，这个联系 我连不上
文中结论是有四分之一的人，医生建议他们做手术，虽然伴随有一定的风险和费用，这是因为医生们想要锻炼自己的技术且喜欢钱。
4，
Atpresent the Hollywood Restaurant has only standard-height tables. However, many customers come to watch thecelebrities who frequent the Hollywood,and they would prefer tall tables with stools because such seating would afforda better view of the celebrities. Moreover, diners seated on stools typically do not stay as long asdiners seated at standard-height tables. Therefore, if the Hollywoodreplaced some of its seating with high tables and stools, its profits wouldincrease.
Theargument is vulnerable to criticism on the grounds that it gives reason tobelieve that it is likely that
(A)some celebrities come to the Hollywood
to be seen, and so might choose to sit at the tall tables if they wereavailable(B)the price of meals ordered by celebrities dining at the Hollywood
compensates for the longer time, ifany, they spend lingering over their meals(C) a customer of the Hollywood who would chooseto sit at a tall table would be an exception to the generalization aboutlingering
(D)a restaurant's customers who spend less time at their meals typically orderless expensive meals than those who remain at their meals longer
(E)with enough tall tables to accommodate all the Hollywood
's customers interested in suchseating, there would be no view except of other tall tables 为什么不选择A呢？
万分感谢 ，
小女 11月9号考试
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发表于 2011-10-24 08:31:03
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