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题目：

Unearthed in China, fossils of feathered dinosaurs offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds.

选项:

A、offer the most dramatic evidence yet discovered of the close evolutionary relationship between dinosaurs and birds
B、offer evidence more dramatic than what has yet been discovered of the close evolutionary relationship between dinosaurs and birds
C、offer more dramatic evidence of the close evolutionary relationship than any yet discovered between dinosaurs and birds
D、have offered the most dramatic evidence of the close evolutionary relationship between dinosaurs and birds that have yet been discovered
E、have offered more dramatic evidence than any that has yet been discovered of the close evolutionary relationship between dinosaurs and birds

答案:

A
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题目：

Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture to 1950.

选项:

A、Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture
B、Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
C、The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture
D、The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began
E、The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of agriculture

答案:

A
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题目：

Advertising by mail has become much less effective, with fewer consumers responding. Because consumers are increasingly overwhelmed by the sheer amount of junk mail they receive, most discard almost all offers without considering them. Thus, an effective way for corporations to improve response rates would be to more carefully target the individuals to whom they mail advertising, thereby cutting down on the amount of junk mail each consumer receives.

Which of the following, if true, would most support the recommendation above?

选项:

A、There are cost-effective means by which corporations that currently advertise by mail could improve response rates.
B、Many successful corporations are already carefully targeting the individuals to whom they mail advertising.
C、Any consumer who, immediately after receiving an advertisement by mail, merely glances at it is very likely to discard it.
D、Improvements in the quality of the advertising materials used in mail that is carefully targeted to individuals can improve the response rate for such mail.
E、Response rates to carefully targeted advertisements by mail are considerably higher, on average, than response rates to most other forms of advertising.

答案:

E
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[Reading Comprehension]

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文章：

    In its 1903 decision in the case of Lone Wolf v. Hitchcock, the United States Supreme Court rejected the efforts of three Native American tribes to prevent the opening of tribal lands to non-Indian settlement without tribal consent. In his study of the Lone Wolf case, Blue Clark properly emphasizes the Court's assertion of a virtually unlimited unilateral power of Congress (the House of Representatives and the Senate) over Native American affairs. But he fails to note the decision's more far-reaching impact: shortly after Lone Wolf, the federal government totally abandoned negotiation and execution of formal written agreements with Indian tribes as a prerequisite for the implementation of federal Indian policy. Many commentators believe that this change had already occurred in 1871 when— following a dispute between the House and the Senate over which chamber should enjoy primacy in Indian affairs—Congress abolished the making of treaties with Native American tribes. But in reality the federal government continued to negotiate formal tribal agreements past the turn of the century, treating these documents not as treaties with sovereign nations requiring ratification by the Senate but simply as legislation to be passed by both houses of Congress. The Lone Wolf decision ended this era of formal negotiation and finally did away with what had increasingly become the empty formality of obtaining tribal consent.

题目：

The author of the passage is primarily concerned with

选项:

A、identifying similarities in two different theories
B、evaluating a work of scholarship
C、analyzing the significance of a historical event
D、debunking a revisionist interpretation
E、exploring the relationship between law and social reality

答案:

C
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题目：

So dogged were Frances Perkins' investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.

选项:

A、and her lobbying for wage and hour reform was persistent,
B、and lobbying for wage and hour reform was persistent, so that
C、her lobbying for wage and hour reform persistent, that
D、lobbying for wage and hour reform was so persistent,
E、so persistent her lobbying for wage and hour reform, that

答案:

E
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题目：

Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage.  Unfortunately, the seeds themselves are quite expensive, and the plants require more fertilizer and water to grow well than normal ones.  Thus, for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of additional fertilizer.  However, since consumer demand for grains, fruits, and vegetables grown without the use of pesticides continues to rise, the use of genetically engineered seeds of this kind is likely to become widespread.
 
In the argument given, the two portions in boldface play which of the following roles?

选项:

A、The first supplies a context for the argument; the second is the argument's main conclusion.
B、The first introduces a development that the argument predicts will have a certain outcome; the second is a state of affairs that the argument denies will be part of that outcome.
C、The first presents a development that the argument predicts will have a certain outcome; the second acknowledges a consideration that weighs against that prediction.
D、The first provides evidence to support a prediction that the argument seeks to defend; the second is that prediction.
E、The first and the second each provide evidence to support the argument's main conclusion.

答案:

C
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题目：

When an active tooth in the shark's jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

选项:

A、When an active tooth in the shark's jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.
B、Whenever an active tooth is lost or worn down, many spare teeth lie in seemingly limitless reserve in the shark's jaws, which are each ready to slide into the appropriate position.
C、Many spare teeth lie in seemingly limitless reserve in the shark's jaws, each one of which are ready to slide into the appropriate position when an active tooth is lost or worn down.
D、The many spare teeth lying in seemingly limitless reserve in the shark's jaws, each one of which is ready to slide into the appropriate position whenever an active tooth is lost or worn down.
E、In the shark's jaws, many spare teeth lie in seemingly limitless reserve, each one ready to slide into the appropriate position whenever an active tooth is lost or worn down.

答案:

E
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题目：

Excavations of the Roman city of Sepphoris have uncovered numerous detailed mosaics depicting several readily identifiable animal species:  a hare, a partridge, and various Mediterranean fish.  Oddly, most of the species represented did not live in the Sepphoris region when these mosaics were created.  Since identical motifs appear in mosaics found in other Roman cities, however, the mosaics of Sepphoris were very likely created by traveling artisans from some other part of the Roman Empire.
 
Which of the following is an assumption on which the argument depends?

选项:

A、The Sepphoris mosaics are not composed exclusively of types of stones found naturally in the Sepphoris area.
B、There is no single region to which all the species depicted in the Sepphoris mosaics are native.
C、No motifs appear in the Sepphoris mosaics that do not also appear in the mosaics of some other Roman city.
D、All of the animal figures in the Sepphoris mosaics are readily identifiable as representations of known species.
E、There was not a common repertory of mosaic designs with which artisans who lived in various parts of the Roman Empire were familiar.

答案:

E
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题目：

Outlining his strategy for nursing the troubled conglomerate back to health, the chief executive's plans were announced on Wednesday for cutting the company's huge debt by selling nearly $12 billion in assets over the next 18 months.

选项:

A、executive's plans were announced on Wednesday for cutting the company's huge debt by selling nearly $12 billion in assets over the next 18 months
B、executive's plans, which are to cut the company's huge debt by selling nearly $12 billion in assets over the next 18 months, were announced on Wednesday
C、executive's plans for cutting the company's huge debt by selling nearly $12 billion in assets over the next 18 months were announced on Wednesday
D、executive announced plans Wednesday to cut the company's huge debt by selling nearly $12 billion in assets over the next 18 months
E、executive announced plans Wednesday that are to cut the company's huge debt by selling nearly $12 billion in assets over the next 18 months

答案:

D
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题目：

For most people, the left half of the brain controls linguistic capabilities, but some people have their language centers in the right half.  When a language center of the brain is damaged, for example by a stroke, linguistic capabilities are impaired in some way.  Therefore, people who have suffered a serious stroke on the left side of the brain without suffering any such impairment must have their language centers in the right half.
 
Which of the following is an assumption on which the reasoning in the argument above depends?

选项:

A、No part of a person's brain that is damaged by a stroke ever recovers.
B、Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.
C、Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.
D、If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages at least one of them.
E、It is impossible to determine which side of the brain contains a person's language centers if the person has not suffered damage to either side of the brain.

答案:

D
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[Undefined]

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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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[Undefined]

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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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[Undefined]

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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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[Undefined]

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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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