I think the answer should be E.
In the arg ,it is said that the animal which were depicted in mosaic had never been live when the mosaic was created.So author think it was created by someone came from another place.
If there is a place where most of artists in different areas could saw and share the information.or there was a common design everybody was familar.Then the artists who live in S could make the motifs ,too.Then the conclusion would be weaken.
应该用取非削弱吧 结论是mosaics是从别的地方带来的 如果E取非就是不同地方都有相同的设
计 也就削弱了结论 应该是选E
我的意见：assumption题还是要先看结论，最后一句是结论。看前半部分，Since identical motifs appear
in mosaics found in other Roman cities，有这个原因作者推出结论。E取非就是提供信息，让从这个推不出结论。 ------------------------------------------------------------------------------------------------------- 22. GWD26-Q22
People who have spent a lot of time in contact with animals often develop animal-induced allergies, some of them quite serious. In a survey of current employees in major zoos, about 30 percent had animal-induced allergies. Based on this
sample, experts conclude that among members of the general population who have spent a similarly large amount of time in close contact with animals, the percentage with animal-induced allergies is not 30 percent but substantially more. Which of the following, if true, provides the strongest grounds for the experts‘ conclusion?
A. A zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation. B. A zoo employee is more likely than a person in the general population to keep one or more animal pets at home C. The percentage of the general population whose level of exposure to animals matches that of a zoo employee is quite
small. D. Exposure to domestic pets is, on the whole, less likely to cause animal-induced allergy than exposure to many of the
animals kept in zoos. E. Zoo employees seldom wear protective gear when they handle animals in their care.
嗯，其实之前我也有想过lucy说的这个问题，但系再又觉得动物管理员不会有多少吧，而普通人群中与动物有亲密接触的人这个基数其实是很大的，即使加入了几个动物管理员对比例应该不会产生什么影响吧。。。
偶认为这个underestimate是相对的，并不说这个survey是不准的意思，只是就目前的情况而论，的确存在一些有过敏症的动物管理员已经离职而没有算到survey里面，所以才会认为这个比例应该更高一点才贴近普通人群的实际比例。
同意，动物园的30％其实低估了，因为动物园员工由于一些人受不了过敏需要换工作，大量新员工需要补充，这使得动物园的过敏员工比例可以维持在30％的低水平
------------------------------------------------------------------------------------------------ GWD27-Q28 (GWD-26-Q22）
People who have spent a lot of time in contact with animals often develop animal-induced allergies, a significant percentage of which are quite serious. In a survey of current employees in major zoos, about 30 percent had animal-induced allergies. However, a zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation. Which of the following hypotheses receives the strongest support from the information given?
A. The incidence of serious animal-induced allergies among current zoo employees is lower than that among the
general population. B. Zoo employees tend to develop animal-induced allergies that are more serious than those of other people who
spend equally large amounts of time with animals. C. Exposure to domestic pets is, on the whole, less likely to cause animal-induced allergy than is exposure to the kinds
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of animals that are kept in zoos.
D. There is no occupation for which the risk of developing an animal-induced allergy is higher than 30 percent. E. Among members of the general population who have spent as much time with animals as zoo employees typically
have, the percentage with animal-induced allergies is significantly more than 30 percent. ------------------------------------------------------------------------------------------------------- 29. GWD26-Q29 Educational Theorist:
Recent editorials have called for limits on the amount of homework assigned to children. They point out that free-time
activities play an important role in childhood development and that large amounts of homework reduce children‘s free time, hindering their development. But the average homework time for a ten year old, for example, is little more than 30 minutes per night. Clearly, therefore, there is no need to impose the limits these editorials are calling for. Which of the following is an assumption on which the educational theorist‘s argument relies?
A. The free-time activities that ten year olds engage in most are all approximately equally effective at fostering
development B. Regularly doing homework assignments improves children‘s academic performance.
C. Individual teachers are not the best judges of how much homework to assign the children they teach
D. In most schools, if not all, the homework assignments given are of a length that does not diverge widely from the
average. E. Free-time activities rarely teach children skills or information that they can use in their academic work.
My opinion: 从此题好象可以看出，对于法规/limit/,用average来argue是不行的，因为限制并不是对average起作用的，而是对最低或者最高起作用的。？？
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31. GWD26-Q31 此题要小心，不能一下子排除A,有时候靠感觉是不对的，而且关键要有理才行。 Which of the following most logically completes the argument?
When people engage in activities that help others, their brain releases endorphins, the brain‘s natural opiates, which induce in people a feeling of well-being. It has been suggested that regular release of endorphins increases people‘s longevity. And a statistic on adults who regularly engage in volunteer work helping others shows that they live longer, on average, than adults who do not volunteer. However, that statistic would be what we would expect even if volunteering does not boost longevity, because .
A. in the communities studied, women were much more likely to do regular volunteer work than men were, and women
tend to live longer than men do. B. the number of young adults who do regular volunteer work is on the increase
C. the feelings of well-being induced by endorphins can, at least for a time, mask the symptoms of various conditions and
diseases, provided the symptoms are mild. D. it is rare for a person to keep up a regular schedule of volunteer work throughout his or her life.
E. Some people find that keeping a commitment to do regular volunteer work becomes a source of stress in their lives.
支持A
理解原文最后一句话最关键:即使volunteering不能增加人的寿命,那组统计数据也一样,没有变化,都是volunterring比没有voluntering的人长寿.说明这组人比较特殊.这些人寿命本来就长,不作voluntering寿命也长. A的意思是那组数据统计的是妇女,而他们通常比较长寿.所以拿这些人去统计,结果会是比平均成年人长命,即使扣除他们做的volunteering使他们长寿的因素. lawyer
------------------------------------------------------------------------------------------------------- 39. GWD3-Q38:（CD2-38）
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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?
A. 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. B. The spruce-budworm population has dropped because of a disease that can infect budworms but not Tennessee
warblers. C. The drop in the population of the spruce budworm is expected to be only temporary.
D. Many Tennessee warbler have begun migrating in the fall to places other than traditional coffee plantations. E. Although many North American songbirds have declined in numbers, no other species has experienced as great a
decline as has the Tennessee warbler. ------------------------------------------------------------------------------------------------------- 41.: GWD-23-Q39
In Gandania, where the government has a monopoly on tobacco sales, the incidence of smoking-related health problems has risen steadily for the last twenty years. The health secretary recently proposed a series of laws aimed at curtailing tobacco use in Gandania. Profits from tobacco sales, however, account for ten percent of Gandania‘s annual revenues. Therefore, Gandania cannot afford to institute the proposed laws.
Which of the following, if true, most seriously weakens the argument? A. All health care in Gandania is government-funded.
B. Implementing the proposed laws is not likely to cause a significant increase in the amount of tobacco Gandania exports. C. The percentage of revenue Gandania receives from tobacco sales has remained steady in recent years. D. Profits from tobacco sales far surpass any other single source of revenue for the Gandanian government. E. No government official in Gandania has ever previously proposed laws aimed at curtailing tobacco use.
找了个牛人的解释：烟草赚钱是事实，不能ban是结论 说烟草导致病增多
然后因为烟草是收入， 所以不能ban烟草
这里的主要推力是，因为烟草带来钱，所以不能ban weaken要去反对说烟草可以ban
C，说烟草收入稳定。。 这样要是ban了，不就木有钱拉 所以C是support A是这么说的，政府要出钱看病
这样不ban烟草，导致大家得病，于是政府就用卖烟的钱来给大家治病 那不是还不如不卖烟阿
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GWD-TN-18
2. GWD-27-Q2:
Electronic computer chips made of tiny silicon wafers now regularly contain millions of electronic switches. Unfortunately, electronic switches that are this small cannot withstand intense radiation. Micro-Mechanics plans to produce a chip that, because it uses only microscopic mechanical switches, will be invulnerable to radiation damage. The switches will, however, be slower than electronic switches and the chip will contain only 12,000 switches.
For there to be a market for Micro-Mechanics‘ chip as a result of the apparent advantage described above, each of the following would have to be true EXCEPT:
A. There will be applications in which the speed attainable by an electronic switch is not essential.
B. Switches used on electronic chips that contain only 12,000 switches are more vulnerable to radiation damage than
the switches on Micro-Mechanics‘ chip will be. C. There will be applications for computer chips in environments where the chips may have to survive intense radiation. D. Some devices in which computer chips will be used will have other components that will be able to function during
or after exposure to radiation. E. Manufacturers are able to protect electronic computer chips against exposure to intense radiation, where this
protection is necessary. 解析：原文推理：electronic switches不能忍受intense radiation，Micro-Mechanics‘ chip可以忍受，但是slower than electronic switches，结论说Micro-Mechanics‘ chip有市场，也就是说就算慢也可以
思路：要加强有市场，就要强调Micro-Mechanics‘ chip能够抗击radiation damage的优点，淡化速读慢的缺点。 A：说速度不重要，自然就去除了慢这个缺点，也就有市场了。
B：相同的速读下electronic chips比Micro-Mechanics‘ chip更脆弱，加强了Micro-Mechanics‘ chip抗击radiation damage的能力
C：chips may have to survive intense radiation说明抗击radiation damage很重要，因此有市场
D：错误是认为其他组成部分是否能够忍受radiation damage和Micro-Mechanics‘ chip有市场无关。但是这个选项说明使用Micro-Mechanics‘ chip没有副作用。之前使用electronic switches的时候因为不能忍受intense radiation，所以只能在弱radiation的情况下使用，现在换成了Micro-Mechanics‘ chip，也就是说可以在强radiation下使用，但是如果装置中的其他零件不能忍受强radiation的话，就算是换上了Micro-Mechanics‘ chip也不能用，所以也就没有市场了。这个选项排除了这种情况。 E：正确，很明显的错误，electronic computer chips可以被保护不受radiation damage，那么就不需要Micro-Mechanics‘ chip了，削弱结论
--------------------------------------------------------------------------------------------------- 8: GWD-23-Q40
Political advocacy groups have begun to use information services to disseminate information that is then accessed by the public via personal computer. Since many groups are thus able to bypass traditional news sources, whose reporting is selective, and to present their political views directly to the public, information services present a more balanced picture of the complexities of political issues than any traditional news source presents. Which of the following is an assumption on which the argument above depends?
A. Information services are accessible to enough people to ensure that political advocacy groups can use these
services to reach as large a percentage of the public as they could through traditional news sources. B. People could get a thorough understanding of a particular political issue by sorting through information provided by
several traditional news sources, each with differing editorial biases. C. Information on political issues disseminated through information services does not come almost entirely from
advocacy groups that share a single bias. D. Traditional news sources seldom report the views of political advocacy groups accurately.
E. Most people who get information on political issues from newspapers and other traditional news sources can readily
identify the editorial biases of those sources.
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