题目内容
（请给出正确答案）
A．begin a completely new net
B．destroy the half-net
C．spin the rest of the net
D．stay away from the net
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更多“Based on the example provided …”相关的问题
Formal economic forecasting is usually based on a (1)_____ theory as to how the economy works. Some theories are complicated, and their application requires an elaborate (2)_____ of cause and effect. Others are relatively simple, (3)_____ most developments in the economy to one or two basic factors. Many economists, for example, believe that changes in the supply of money (4)_____ the rate of growth of general business activity. Others (5)_____ a central role to investment in new facilities—housing, industrial plants, highways, and so forth. In the United States, where consumers (6)_____ such a large share of economic activity, some economy believe that consumer decisions to (7)_____ or save provide the principal (8)_____ to the future course of the entire economy. Obviously the theory that a forecaster applies is of (9)_____ importance to the forecasting process; it (10)_____ his line of investigation, the statistics he will regard as most important, and many of the techniques he will apply.
Although economic theory may determine the general (11)_____ of a forecast, judgment also often plays an important role. A forecaster may decide that the circumstances of the moment are (12)_____ and that a forecast produced by the (13)_____ statistical methods should be modified to take account of special current circumstances. This is particularly necessary when some event outside the Usual run of economic activity has an a (14)_____ economic effect. For example, forecasts of 1987 economic activity in the United States were more accurate when the analyst correctly foresaw that the exchange value of the dollar would (15)_____ sharply during the year that consumer spending would slacken, and that (16)_____ rates would rise only moderately. None of these conclusions followed (17)_____ purely economic analysis; they all required judgment as to future decisions (18)_____, an economist may decide to adjust an economic forecast that was made by traditional methods to take account of other unique (19)_____; he may, for example, decide that consumers will (20)_____ their spending patterns because of special circumstances such as rising price of imports or fear of threatened shortages.
A．specific
B．peculiar
C．unique
D．unified
Questions 26 to 35 are based on the following passage.
The method for making beer has changed over time. Hops (啤酒花)，for example, which give many a modem beer its bitter flavor, are a (26)_______ recent addition to the beverage. This was first mentioned in reference to brewing in the ninth century. Now, researchers have found a (27)_______ingredient in residue (残留物)from 5,000-year-old beer brewing equipment. While digging two pits at a site in the central plains of China, scientists discovered fragments from pots and vessels. The different shapes of the containers (28)_______ they were used to brew, filter, and store beer. They may be ancient “beer-making tools,” and the earliest (29_______ evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences. To (30)_______ that theory, the team examined the yellowish, dried (31)_______ inside the vessels. The majority of the grains, about 80%, were from cereal crops like barley (大麦),and about 10% were bits of roots, (32)_______lily,which would have made the beer sweeter, the scientists say. Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn&39;t become a (33)_______food in central China until about 2,000 years ago, according to the researchers. Based on that timing, they indicate barley may have (34)_______ in the region not as food, but as (35)_______material for beer brewing.
A) Arrived
B) consuming
C) direct
D) exclusively
E) including
F) inform
G) raw
H) reached
I) relatively
J) remains
K)resources
L) staple
M) suggest
N) surprising
O) test
A coin is a piece of metal, usually disc-shaped, which bears words, designs or numbers showing its value. Until the eighteenth and nineteenth centuries, coins were given monetary worth based on the exact amount of metal contained in them, but most modern coins are based on face value—the value that the governments choose to give them, which doesn't show the actual metal content. Coins have been made of gold, silver, copper, aluminum (铝) , nickel(镍) , lead, zinc (锌) , plastic and in China even from tea leaves. Most governments now issue paper money in the form. of bills, which are really" promise to pay". Paper money is obviously easier to handle and much more convenient in the modern world. Checks and credit cards are being used increasingly, and it is possible to imagine a world where "money" in the form. of coins and paper currency will no longer be used. Even today, in the United States, many places, especially filling stations will not accept cash at night for security reasons.
Barter here means ______.
A．exchanging goods for money
B．exchanging sheep for anything in the market
C．exchanging goods for goods
D．exchanging money for goods
Questions are based on the following passage．
In fact， even without humans， the Earth"s climate changes．Some climate change is（36）But，as greenhouse gases are added to the atmosphere， human influence "emerges" from natural variability．Droughts， one of the most Intensely studied climate events， are a perfect example of an（37）with both natural and human influences．Separating the（38）strengths of the influences is a challengefor scientists．However， with the large social and economic costs of droughts， it is a challenge thescientists must（39）.
In a very recent study published in the Journal of Climate， authors Richard Seager and MartinHoerling cleverly used climate models forced by sea surface temperatures to（40）how much of thepast century"s North American droughts have been caused by ocean temperatures， natural variability and human influences．
Droughts can be caused by a （n）（41）of separate or interactional phenomena．At its root，drought results from the low（42）of water falling and sometimes higher temperatures （which increaseevaporation rates）．The beginning of drought can often be linked to variations in ocean temperatures．
It is also found that the oceans can affect the atmosphere to create conditions that are（43）responsible for drought．What"s more， temperature increases（44）withhuman-driven global warmingalso play a role．This（45）agrees with other researchers who have shown that， while human-emittedgreenhouse gas warming may not cause a particular drought， it can make drought come on earlier，faster， and harder than it otherwise would．
A．associated
B．attached
C．conclusion
D．conduct
E．distinguish
F．effect
G．natural
H．Partly
I．Quality
J．Quantity
K．Relative
L．Ridiculous
M．Simply
N．Undertake
O．variety
第（36）题应填__________ 查看材料
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
The standardized educational or psychological tests, that are widely used to aid in selecting, assigning, or promoting students, employees, and military personnel have been the target of recent attacks in books, magazines, the daily press, and even in Congress. The target is wrong, for in attacking the tests; critics divert attention from the fault that lies with ill-informed or incompetent users. The tests themselves are merely tools, with characteristics that can be measured with reasonable precision under specified conditions. Whether the results will be valuable, meaningless, or even misleading depends partly upon the tool itself but largely upon the user.
All informed predictions of future performance are based upon some knowledge of relevant past performance. How well the predictions will be validated by later performance depends upon the amount, reliability, and appropriateness of the information used and on the skill and Wisdom with which it is interpreted. Anyone who keeps careful score knows that the information available is always incomplete and that the predictions are always subject to error.
Standardized tests should be considered in this context. They provide a quick, objective method of getting some kinds of information about what a person has learned, the skills he has developed, or the kind of person he is. The information so obtained has, qualitatively, the same advantages and shortcomings as other kinds of information. Whether to use tests, other kinds of information, or both in a particular situation depends, therefore, upon the empirical evidence concerning comparative validity, and upon such factors as cost and availability.
In general, the tests work most effectively when the traits or qualities to be measured can be most precisely defined (for example, ability to do well in a particular course of training program) and least effectively when what is to be measured or predicted cannot be well defined (for example, personality or creativity). Properly used, they provide a rapid means of getting comparable information about many people. Sometimes they identify students whose high potential has not been previously recognized, but there are many things they do not do. For example, they don't compensate for gross social inequality, and thus don't tell how able an underprivileged younger might have been had he grown up under more favorable circumstances.
What is the essence of this text？
A．Attacking standardized tests.
B．Don't blame the test—blame the user.
C．Standardized tests and their wide applications.
D．The standardized test—a useful means of assessment.
The currencies of the world's major economies have names and backgrounds that are as diverse as the countries themselves.
The dollar is the name for the currency used in many countries including the United States , Canada, and Australia. It gets its name from a silver coin minted during the Middle Ages in a small valley, or "Thal" , in Bohemia called Joachimathal. Just a sausage Frankfurt called "Joachimsthaler" or simply " Thaler" , and came to be called " dollar" in English.
The pound, used in Britain, Egypt, and Lebanon among others, refers to the weight used in determining the value of coins, based on precious metals such as gold or sterling. The penny has the same origin as the word pawn,found in terms such as pawn shop , and originally meant "to pledge". A penny , like any currency , is a " pledge " of value.
In Italy and Turkey , the currency is called lira. The word is based on the Latin lira, meaning "pound" and once again referring to the weight of the original coins.
In Spanish , the word meaning " weight" , peso is used to describe the coins that were based on a certain weight of gold or silver. Originally,there were gold coins called peso de oro and silver ones called peso de plata. In Spain , the currency is called peseta, meaning "small peso". The word peso is used to describe the currency in many Spanish-speaking countries in Latin America.
In Denmark, Norway, and Sweden, the word for crown-krone in Denmark and Norway,krona in Sweden-is used to describe the currency that was originally minted by the king and queen,with royal crowns stamped on the earlier coins. Today,the crown has been replaced by other symbols , but the name remams.
The franc,used in France, Switzerland, and other countries and territories,is based on the early coins used in France, that bore the Latin inscription franconium rex , meaning "king of the Franks". The com, as well as the country, took its name from one of the original tribes that settled in the area, the Franks.
The German mark and Finnish markka derive their name from the small marks that were cut into coins to indicate their precious metal content. The German mark, deutsche mark in German ,is often called by its shortened name , D-mark.
The ancient Chinese word yuan meant "round", or "round thing". The name of the Japanese currency, the yen, and the name of the Chinese currency, the yuan , both derived from the old Chinese word,refer to the round shape of the original coins.
Problem may arise when using the plural forms of these currencies. Most take the English plural "s", for example , pounds , dollars , francs , Deutschmarks , etc. However , some are invariable: yuan, yen, baht, and rand. Others keep the plural form of the language spoken in the country of origin: lira-lire , krone-kroner, krona-kronor , markka-markkaa , etc.
Currencies are said to be convertible or invertible. Semi-convertible currencies can only be bought or sold through a country's central bank for documented commercial transactions. The exchange rates are fixed. Semi-convertible currencies are typical of third world countries.
A hard currency is one which is strong and unlikely to fall in value. A soft currency is one from a country with a week balance of payments and for which there is little demand.
Questions for reading :
The belief in the rule of law goes beyond the area of politics to other areas of life that are governed by formal rules and procedures. To get a job with government institutions, for example, or to get government funding for a research project, one must follow published procedures and show that one meets the published requirements. Personal connections are not supposed to matter under the rule of law.
This is not to say that personal contacts, wealth, and social influence do not matter in situations where laws and rules are to be obeyed. They may, what is said above describes the ideal with which Americans agree. In reality, connections can sometimes help a person get a government job. Rich people can sometimes go unpunished for illegal behavior. that poor people would be likely to be punished for. But in general the rule of law prevails, and Americans are proud that it does.
The word "stations" (Line 5 , Para 1) is closest in meaning to______.
A．stages
B．situations
C．successes
D．social positions
What is high tech？ A computer is high tech. So is a communications satellite. A modern manufacturing system is surely high tech.
High tech became a popular expression in the United States during the early 1980's. Because of improvements in technology, people could buy many new kinds of products in American stores, such as home computers, microwave ovens, etc.
"State of the art" is something that is as modern as possible. It is a product that is based on the very latest methods and techn01ogy. Something that is "state of the art" is the newest possible design or product of a business or industry. A state of the art television set, for example, uses the most modern electronic design and parts. It is the best that one can buy.
"State of the art" is not a new expression. Engineers have used it for years, to describe the best and most modern way of doing something.
Millions of Americans began to use the expression in the late 1970's. The reason was the computer revolution. Every computer company claimed that its computers were "state of the art".
Computer technology changed so fast that a state of the art computer today might be old tomorrow. The expression "state of the art" became as common and popular as computers themselves. Now all kinds of products are said to be "state of the art".
What is the purpose of the passage？
A．To tell how "high tech" and "state of the art" have developed.
B．To give examples of high tech.
C．To tell what "high tech" and "state of the art" are.
D．To describe very modern technology.
Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grade level—variables that are characterized by an underlying continuum—or the data my represent qualitative variables, such as sex, college major, or personality type. Large masses of data must generally undergo a process of summarization or reducing to comprehensibly form. the properties of an otherwise un- wieldy mass of data.
Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations. For example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficiency to question each child; the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from knowledge of the characteristics of only a sample of the population.
What is the passage mainly concerned with？
A．Development and application of statistics.
B．Origin of descriptive statistics.
C．Limitations of inferential statistics.
D．Importance of statistics.
