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{精练}
5. Politician: All nations that place a high tax on
income produce thereby a negative incentive
for technological innovation, and all nations in
which technological innovation is hampered
inevitably fall behind in the international arms
race. Those nations that, through historical
accident or the foolishness of their political
leadership, wind up in a strategically
disadvantageous position are destined to lose
their voice in world affairs. So if a nation wants
to maintain its value system and way of life, it
must not allow its highest tax bracket to exceed
30 percent of income.
Each of the following, if true, weakens the
politician’s argument EXCEPT:
55’
B:所有对收入征收高税收的国家都会对科技创新产生负面效应,而所有科技创新被阻碍的国家都不可避免的在国际军备竞赛中fall behind。那些(因历史事件或愚蠢的政治领导)卷入策略上不利位置的国家注定会在国际事务上失去话语权。
C:因此,如果一个国家想要维持它有价值的体系和生存方式,必须得阻止highest tax bracket超过收入的30%。
哪个不能削弱
对收入征收高税收→阻碍科技创新→国际军备竞赛落后→a strategically disadvantageous position,lose voice
→威胁value system
(A) The top level of taxation must reach 45 percent
before taxation begins to deter inventors and
industrialists from introducing new
technologies and industries.当税收达到45%时,开始威慑科技投资,对
(B) Making a great deal of money is an
insignificant factor in driving technological
innovation.钱的数量和科技创新无显著关系,对,第一个
(C) Falling behind in the international arms race
does not necessarily lead to a strategically
less advantageous position.对,第三个
(D) Those nations that lose influence in the world
community do not necessarily suffer from a
threat to their value system or way of life.对,最后一个
(E) Allowing one’s country to lose its
technological edge, especially as concerns
weaponry, would be foolish rather than
merely a historical accident.强调科技的重要性,无关,错
{PREP逻辑链练习}
17.(27669-!-item-!-188;#058&003302)
Urban air contains more sulfur dioxide than does rural air, and plants in cities typically grow more slowly than do plants in rural areas. In an experiment to see how much of the difference in growth is due to sulfur dioxide, classes in an urban and a rural school grew plants in greenhouses at their schools and filtered the greenhouse air to eliminate sulfur dioxide. Plants in the urban greenhouse grew more slowly than those in the rural greenhouse.
Which of the following, if true, would it be most important to take into account in evaluating the result?
53’
B:城市空气比农村空气含有更多的硫磺气体,并且城市的植物比农场的生长缓慢。
在一个研究how much difference in growth是由硫磺气体引起的实验中,城市和农村的班级将植物放在学校的温室中,并且滤过了温室中的气体来为了消除硫磺气体。
C:城市温室里的植物生长的比农村缓慢很多。
思路:在滤过空气影响的情况下,还是出现了这个现象。说明可能还有别的因素所致这个现象
(A) The urban school was located in a part of the city in which levels of sulfur dioxide in the air were usually far lower than is typical for urban areas.已经滤过了空气了,排
(B) At both schools, the plants in the greenhouses grew much more quickly than did plants planted outdoors in plots near the greenhouses.本题现在探究的是温室里为什么还会出现这个现象,和室外的无关,排
(C) The urban class conducting the experiment was larger than the rural class conducting the experiment.做实验的班级比较,无关
(D) Heavy vehicular traffic such as is found in cities constantly deposits grime on greenhouse windows, reducing the amount of light that reaches the plants inside.他因,城市温室里阳光少。对
(E) Because of the higher levels of sulfur dioxide in the air at the urban school, the air filters for the urban school's greenhouse were changed more frequently than were those at the rural school.过滤的频繁,怎么还生长的缓慢?矛盾啊,排
18. (27717-!-item-!-188;#058&003330)
Many small roads do not have painted markings along their edges. Clear edge markings would make it easier for drivers to see upcoming curves and to judge the car's position on the road, particularly when visibility is poor, and would therefore seem to be a useful contribution to road safety. However, after Greatwater County painted edge markings on all its narrow, winding roads, the annual accident rate along those roads actually increased slightly.
Which of the following, if true, most helps to explain the increase in accident rate?
40’
explain
(A) Greatwater County has an unusually high proportion of narrow, winding roads.
(B) In bad weather it can be nearly as difficult for drivers to see the road as it is at night.
(C) Prior to the painting of the edge markings, Greatwater County's narrow, winding roads already had a somewhat higher accident rate than other Greatwater County roads.
(D) Many of the accidents on narrow, winding roads involve a single vehicle veering off the road, rather than the collision of two vehicles.
(E) After the markings were painted on the roads, many drivers who had gone out of their way to avoid driving on those roads at night no longer did so.对
19. (27995-!-item-!-188;#058&003473)
Gortland has long been narrowly self-sufficient in both grain and meat. However, as per capita income in Gortland has risen toward the world average, per capita consumption of meat has also risen toward the world average, and it takes several pounds of grain to produce one pound of meat. Therefore, since per capita income continues to rise, whereas domestic grain production will not increase, Gortland will soon have to import either grain or meat or both.
Which of the following is an assumption on which the argument depends?
36’
B:G一直在grain和meat自给自足的有限。然而,随着G国人均收入增长到世界水平,人均meat的消费也增长到了世界水平。但生产1 pound meat需要好几pounds 的grain.
C:因此,既然人均收入持续增长,而国内grain产量没有提高。那么,G很快就要进口g或m或两者都要。
Assumption
思路1:只有g能生产出m
2:g的数量不够维持
(A) The total acreage devoted to grain production in Gortland will soon decrease.排
(B) Importing either grain or meat will not result in a significantly higher percentage of Gortlanders' incomes being spent on food than is currently the case.排
(C) The per capita consumption of meat in Gortland is increasing at roughly the same rate across all income levels.消费肉和收入增长,无关
(D) The per capita income of meat producers in Gortland is rising faster than the per capita income of grain producers.卖肉的收入,无关
(E) People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.取非,g的消费量会大幅度减少,所以有剩余的g去生产m了,对
20. (28411-!-item-!-188;#058&003617)
For years the beautiful Renaissance buildings in Palitito have been damaged by exhaust from the many tour buses that come to the city. There has been little parking space, so most buses have idled at the curb路边 during each stop on their tour, and idling produces as much exhaust as driving. The city has now provided parking that accommodates a third of the tour buses, so damage to Palitito's buildings from the buses' exhaust will diminish significantly.
Which of the following, if true, most strongly supports the argument?
35’ 增强
B:P城的许多楼都受到许多tour buses排放的尾气侵害。城市里停车场很少,所以大多数tour buses在stop站时都闲停在路边,并且排放和行驶时一样多的尾气。
C:城市现在提供了停车场,能够容纳1/3的tour buses,所以尾气对P大楼的伤害能显著减少。
(A) The exhaust from Palitito's few automobiles is not a significant threat to Palitito's buildings.排
(B) Palitito's Renaissance buildings are not threatened by pollution other than engine exhaust.削弱,排
(C) Tour buses typically spend less than one-quarter of the time they are in Palitito transporting passengers from one site to another.削弱-------------正确答案,由于这里没有停车场,人们下车游览时车辆只能idle,idle时排放的尾气和行驶时一样多,为了减少污染政府建了停车场,能容纳3/4的车辆,这样污染将会大幅减少
C :总时间变少→说明idle的时间变少→放尾气的时间变少 。原文没读懂!!
(D) More tourists come to Palitito by tour bus than by any other single means of transportation.对
(E) Some of the tour buses that are unable to find parking drive around Palitito while their passengers are visiting a site.削弱,排 |
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