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题目：

The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since.

选项:

A、that the universe began in an explosive instant ten to twenty billion years ago and has been expanding
B、that the universe had begun in an explosive instant ten to twenty billion years ago and had been expanding
C、that the beginning of the universe was an explosive instant ten to twenty billion years ago that has expanded
D、the beginning of the universe to have been an explosive instant ten to twenty billion years ago that is expanding
E、the universe to have begun in an explosive instant ten to twenty billion years ago and has been expanding

答案:

A
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题目：

Archaeologists in Ireland believe that a recently discovered chalice, which dates from the eighth century, was probably buried to keep from being stolen by invaders.

选项:

A、to keep fromto keep it from
B、to avoid
C、in order that it would avoid
D、in order to keep from

答案:

B
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[Critical Reasoning]

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文章：

Following several years of declining advertising sales, the Greenville Times reorganized its advertising sales force two years ago. Before the reorganization, the sales force was organized geographically, with some sales representatives concentrating on city-center businesses and others concentrating on different outlying regions. The reorganization attempted to increase the sales representatives' knowledge of clients' businesses by having each sales representative deal with only one type of industry or of retailing. After the reorganization, advertising sales increased.

题目：

In assessing whether the improvement in advertising sales can properly be attributed to the reorganization, it would be helpful to find out each of the following EXCEPT:

选项:

A、Two years ago, what proportion of the Greenville Times's total revenue was generated by advertising sales?Has the circulation of the Greenville Times increased substantially in the last two years?
B、Has there been a substantial turnover in personnel in the advertising sales force over the last two years?
C、Before the reorganization, had sales representatives found it difficult to keep up with relevant developments in all the types of businesses to which they were assigned? 
D、Has the economy in Greenville and the surrounding regions been growing rapidly over the last two years?

答案:

A
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题目：

Employing many different techniques throughout his career, Michelangelo produced a great variety of art works, including paintings, for example, in the Sistine Chapel, to sculpture, for example, the statue of David.

选项:

答案:

D
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[Reading Comprehension]

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文章：

题目：

According to the passage, Krontiris’s work differs from that of the scholars mentioned in line 12 in which of the following ways?

选项:

A、Krontiris’s work stresses the achievements of Renaissance women rather than the obstacles to their success.
B、Krontiris’s work is based on a reinterpretation of the work of earlier scholars.
C、Krontiris’s views are at odds with those of both Kelly and Burkhardt.
D、Krontiris’s work focuses on the place of women in Renaissance society.
E、Krontiris’s views are based exclusively on the study of a privileged group of women.

答案:

E
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题目：

The Near Earth Asteroid Rendezvous (NEAR) spacecraft will orbit the asteroid Eros for a year, slowly moving closer to the surface of the object to make ever more precise measurements that scientists hope will enable them to understand how the solar system formed some four billion years ago.

选项:

A、to make ever more precise measurements that scientists hope will enable them to
B、to make ever more and more precise measurements, which scientists are hoping to enable them
C、for making ever more precise measurements, and scientists hope that they will be able to
D、with the purpose of making more precise measurements than ever, and which scientists hope will enable them to
E、in order to make more precise measurements than it ever did, and scientists are hoping they will be able to

答案:

A
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[Reading Comprehension]

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文章：

Line In the Sonoran Desert of northwestern Mexico and
southern Arizona, the flowers of several species of
columnar cacti—cardon, saguaro, and organ
pipe—were once exclusively pollinated at night by
(5) nectar-feeding bats, as their close relatives in arid
tropical regions of southern Mexico still are. In these
tropical regions, diurnal (daytime) visitors to columnar
cactus flowers are ineffective pollinators because,
by sunrise, the flowers’ stigmas become unreceptive
(10) or the flowers close. Yet the flowers of the Sonoran
Desert cacti have evolved to remain open after sunrise,
allowing pollination by such diurnal visitors as bees and
birds. Why have these cacti expanded their range of
pollinators by remaining open and receptive in daylight?
(15) This development at the northernmost range of
columnar cacti may be due to a yearly variation in the
abundance—and hence the reliability—of migratory
nectar-feeding bats. Pollinators can be unreliable
for several reasons. They can be dietary generalists
(20) whose fidelity to a particular species depends on
the availability of alternative food sources. Or, they
can be dietary specialists, but their abundance may
vary widely from year to year, resulting in variable
pollination of their preferred food species. Finally, they
(25) may be dietary specialists, but their abundance may
be chronically low relative to the availability of flowers.
Recent data reveals that during spring in the
Sonoran Desert, the nectar-feeding bats are
specialists feeding on cardon, saguaro, and
(30) organpipe flowers. However, whereas cactus-flower
abundance tends to be high during spring, bat
population densities tend to be low except near
maternity roosts. Moreover, in spring, diurnal cactus-
pollinating birds are significantly more abundant in
(35) this region than are the nocturnal bats. Thus, with bats
being unreliable cactus-flower pollinators, and daytime
pollinators more abundant and therefore more reliable,
selection favors the cactus flowers with traits that
increase their range of pollinators. While data suggest
(40) that population densities of nectar-feeding bats are
also low in tropical areas of southern Mexico, where
bats are the exclusive pollinators of many species
of columnar cacti, cactus-flower density and bat
population density appear to be much more evenly
(45) balanced there: compared with the Sonoran Desert’s
cardon and saguaro, columnar cacti in southern Mexico
produce far fewer flowers per night. Accordingly,
despite their low population density, bats are able to
pollinate nearly 100 percent of the available flowers.

题目：

According to the passage, present-day columnar cacti in the Sonoran Desert differ from their close relatives in southern Mexico in that the Sonoran cacti

选项:

A、have flowers that remain open after sunset
B、are pollinated primarily by dietary specialists
C、can be pollinated by nectar-feeding bats
D、have stigmas that are unreceptive to pollination at night
E、are sometimes pollinated by diurnal pollinators

答案:

E
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题目：

During the last interglacial period, the climate on the Earth was warmer than it is today, and the consequent melting of the polar ice caps caused the sea level to raise about 60 feet over and above what its height presently is now.

选项:

A、sea level to raise about 60 feet over and above what its height presently is now
B、sea level to be raised over its height presently about 60 feet
C、sea level to rise about 60 feet above its present height
D、level of the seas to rise over and above its present height about 60 feet
E、level of the seas to be raised over their height, now about 60 feet

答案:

C
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题目：

The World Wildlife Fund has declared that global warming, a phenomenon that most scientists agree is caused by human beings’ burning of fossil fuels, will create havoc among migratory birds by harming their habitats as a result of altering the environment.

选项:

A、by harming their habitats as a result of altering the environment
B、by altering the environment to the extent of it harming their habitats
C、by altering the environment in ways harmful to their habitats
D、from the fact that their habitats will be harmed by the environment being altered
E、from the fact that the environment will be altered and this will harm their habitats

答案:

C
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Comparable worth, as a standard applied to eliminate inequities in pay, insists that the values of certain tasks performed in dissimilar jobs can be compared.  In the last decade, this approach has become a critical social policy issue, as large numbers of private-sector firms and industries as well as federal, state, and local governmental entities have adopted comparable worth policies or begun to consider doing so.
 
This widespread institutional awareness of comparable worth indicates increased public awareness that pay inequities--that is, situations in which pay is not "fair" because it does not reflect the true value of a job--exist in the labor market.  However, the question still remains:  have the gains already made in pay equity under comparable worth principles been of a precedent-setting nature or are they mostly transitory, a function of concessions made by employers to mislead female employees into believing that they have made long-term pay equity gains?
 
Comparable worth pay adjustments are indeed precedent-setting.  Because of the principles driving them, other mandates that can be applied to reduce or eliminate unjustified pay gaps between male and female workers have not remedied perceived pay inequities satisfactorily for the litigants in cases in which men and women hold different jobs.  But whenever comparable worth principles are applied to pay schedules, perceived unjustified pay differences are eliminated.  In this sense, then, comparable worth is more comprehensive than other mandates, such as the Equal Pay Act of 1963 and Title VII of the Civil Rights Act of 1964.  Neither compares tasks in dissimilar jobs (that is, jobs across occupational categories) in an effort to determine whether or not what is necessary to perform these tasks--know-how, problem-solving, and accountability--can be quantified in terms of its dollar value to the employer.  Comparable worth, on the other hand, takes as its premise that certain tasks in dissimilar jobs may require a similar amount of training, effort, and skill; may carry similar responsibility; may be carried on in an environment having a similar impact upon the worker; and may have a similar dollar value to the employer.

题目：

Which of the following best describes an application of the principles of comparable worth as they are described in the passage?

选项:

A、The current pay, rates of increase, and rates of promotion for female mechanics are compared with those of male mechanics.
B、The training, skills, and job experience of computer programmers in one division of a corporation are compared to those of programmers making more money in another division.
C、The number of women holding top executive positions in a corporation is compared to the number of women available for promotion to those positions, and both tallies are matched to the tallies for men in the same corporation.
D、The skills, training, and job responsibilities of the clerks in the township tax assessor's office are compared to those of the much better-paid township engineers.
E、The working conditions of female workers in a hazardous-materials environment are reviewed and their pay schedules compared to those of all workers in similar environments across the nation.

答案:

D
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Art historian: Unlike many artistic traditions that sought to depict plants native to the local area in a seasonally appropriate way (for example, depicting scenes of spring with the plants in the appropriate stages of development for that season), seventeenth-century Dutch artists specializing in flower paintings almost exclusively chose to depict exotic species of flowers from outside the local area. Painting such species was worthwhile primarily because the art-buying public had developed a strong preference for images of the exotic. The great botanical centers of the time gave the artists direct access to such flowers, which the artists would freely combine in a single painting, regardless of whether the combined species occurred together in the wild, and depicted each in full bloom, regardless of whether those species bloomed at the same time in nature.

Statement: The art historian makes the point that the species of flowers these Dutch artists chose to paint were 1 largely because the species were 2 .

Select for 1 and for 2 the options that complete the statement so that it is most strongly supported by the information provided. Make only two selections, one in each column.
我选的CE，和EC有什么区别？怎么选出EC的？
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An unusually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984.  Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.
Which of the following statements, if true, most seriously weakens the argument above?
C选项为什么就不会有张冠李戴的问题呢，1984和1982的气候情况能一样吗，C里的火山就可以试用于原文的火山吗
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The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the percent change in the concentration of chemical A required to keep the reaction rate unchanged?
为什么这个题一定是相乘不能是相加呢？y=k1A方-k2B （k1,k2大于0 ），也满足题目说的与A方成正比与B成反比啊？但是这道题只有相乘的情况才能选出正确答案
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Tiger beetles are such fast runners that they can capture virtually any nonflying insect.  However, when running toward an insect, the beetles intermittently stop, and then, a moment later, resume their attack.  Perhaps they cannot maintain their pace and must pause for a moment's rest; but an alternative hypothesis is that while running tiger beetles are unable to process the resulting rapidly changing visual information, and so quickly go blind and stop.
 
Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the two hypotheses and undermine the other?
答案C是怎么支持一个猜想又削弱另一个猜想的？
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[GWD]

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The author of the passage implies that which of the following is a possible partial explanation for acquisition behavior during the 1970's and 1980's?
请解释这道题为什么不选C或E，除了正确选项B，我认为文中也正确地提到了这两个选项可以解释acquisition behavior during 1970s and 80s
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[OG]

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The primary purpose of the passage is to
为什么选E不选B
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Club X has more than 10 but fewer than 40 members. Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3 members at one table and 5 members at each of the other tables. If they sit at tables with 6 members at each table except one and fewer than 6 members at that one table, how many members will be at the table that has fewer than 6 members?
提问小梅老师 这道题求讲一下 我没什么思路 带入数字得的是3
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A photography dealer ordered 60 Model X cameras to be sold for $250 each, which represents a 20 percent markup over the dealer's initial cost for each camera. Of the cameras ordered, 6 were never sold and were returned to the manufacturer for a refund of 50 percent of the dealer's initial cost. What was the dealer's approximate profit or loss as a percent of the dealer's initial cost for the 60 cameras?
请问小梅老师 这道题讲讲一下 我算的是19% 原来成本是200每个 亏了6个 每个亏100. 最后得不出答案
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Analytical!
请问may老师，这题该用什么思路来做？
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Analytical!
请问张老师，这道题为什么D不对？我有我觉得second paragraph最后一句话特别指向D
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