题目内容
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Computers have been getting more popular ______.
A．because the Americans want to appear rich
B．because they are smaller, cheaper and easier to use
C．because they can help Americans do everything
D．because 'they can type letters
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One important new use for computers is for entertainment. Many new games have been designed to be played, on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers ,to play computer games at home. They have become very popular indeed.
Computers in the United States ______.
A．used to be too small to use
B．used to be nice
C．used to be heavy
D．used to be large and expensive
Computers have been designed to store【24】and compute complex problems. Computers are used in【25】traffic in some cities. Stores use computers to keep records of their goods and to send【26】to their customers. Offices use computers to type letters, record business and communicate【27】other offices. People have been using computers in their homes to keep track of expenses and【28】their household appliances on and off.
One important new【29】for computers is for entertainment. Many new games which have been designed to be played on the computers have become very popular【30】.
(46)
A．soon
B．smoothly
C．Vividly
D．rapidly
One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. People also have been buying home computers to play computer games. Watch movies and listen to concert at home. They have become very popular indeed.
Computer used to _____.
A．work rapidly
B．be large and expensive
C．be easy to use
D．be used for fun
The fifth generation computers, with artificial intelligence, and perfected now.
A．developed
B．have developed
C．are being developed
D．will have been developed
city, efficiency and versatility that they have practically "invaded" almost each and every human domain(领域). They have undoubtedly gone far beyond the expectations of a generation that had already lived under the spell(一段时间) of the TV set.
Throughout history there have been inventions that have been particularly remarkable and influential(有影响力的) within the scope of transport, education, health or communication. They have brought out comfort, health, knowledge or power. Some of them have produced minor effects; others have brought about very great changes. Think of the invention of the wheel, the automobile or the printing press, and what about the computer？
At the beginning the computer was thought mainly as an instrument to be used in the mathematical field, but soon people from other sciences began to get interested in this little "brain" that was capable of performing thousands of operations in a few seconds without getting tired or confused. They realized it could not only store millions of pages of information but also organize it in every possible way enabling man to carry out tasks unthinkable by other means.
Computers are now everywhere. They can make vehicles at supersonic(超音速的) speed and precision; they can control world banking transactions(交易), predict weather conditions, conduct an aircraft or a space craft, play instruments, manage nuclear weapons; they can operate on human patients, they can transfer information from one continent to another in seconds, they can...they can...they can... Yet, thank God, they still need human beings: to draw the instructions, to design the programs or to push the button!
Which of the following is true according to the passage？
A．All inventions have brought about complete changes.
B．Few of the inventions have brought about minor changes.
C．The inventions of the wheel and the automobile are not remarkable and influential.
D．We've benefited from the comfort, health, knowledge or power brought out by the inventions.
As far as ______ is concerned, computers have made a rapid growth in the last decade.
A．versatility
B．capacity
C．efficiency
D．All of the above.
Who was interested in computers after they came into existence？
A．Students.
B．Mathematicians.
C．People from many sciences.
D．All the people.
People began to find that ______.
A．computers may get tired afte performing too many operations
B．computers could organize information in limited ways
C．computers are able to carry out tasks quickly with the help of man
D．computers could store information, and organize it as well
According to the last paragraph, we know that the author thinks ______.
A．computers may replace human beings some day
B．everyone should believe in God
C．computers still depend on human beings
D．computers could live without human beings
We should always have been suspicious. After all, computers have spread quickly because they have become cheaper to buy and easier to use. Falling prices and skill requirements suggest that the digital divide would spontaneously shrink—and so it has.
Now, a new study further discredits the digital divide. The study, by economist David Card of the University of California, Berkeley, challenges the notion that computers have significantly worsened wage inequality. The logic of how this supposedly happens is straightforward: computers raise the demand for high-skilled workers, increasing their wages. Meanwhile, computerization—by automating many routine tasks—reduces the demand for low-skilled workers and, thereby, their wages. The gap between the two widens.
Superficially, wage statistics support the theory. Consider the ratio between workers near the top of the wage distribution and those near the bottom. Computerization increased; so did the wage gap.
But wait, point out Card and DiNardo. The trouble with blaming computers is that the worsening of inequality occurred primarily in the early 1980s. With computer use growing, the wage gap should have continued to expand, if it was being driven by a shifting demand for skills. Indeed, Card and DiNardo find much detailed evidence that contradicts the theory. They conclude that computerization does not explain "the rise in U.S. wage inequality in the last quarter of the 20th century".
The popular perception of computers' impact on wages is hugely overblown. Lots of other influences count for as much, or more. The worsening of wage inequality in the early 1980s, for example, almost certainly reflected the deep 1981—1982 recession and the fall of inflation. Companies found it harder to raise prices. To survive, they concluded that they had to hold down the wages of their least skilled, least mobile and youngest workers.
The "digital divide" suggested a simple solution (computers) for a complex problem (poverty). With more computer access, the poor could escape their lot. But computers never were the source of anyone's poverty and, as for escaping, what people do for themselves matters more than what technology can do for them.
It is generally believed that the digital divide is something ______.
A．that is responsible for economic inequalities.
B．deemed to be positive in poverty-relief.
C．that results from falling computer prices.
D．getting worse because of the Internet.
The oldest kind of computer is the abacus, used in China since the sixth century. In the seventeenth century an adding machine was invented, but the first large, modern computer was built in 1973. A few years later a computer could do 5,000 additions per second. Now the computations are so fast that they are measured in nanoseconds.
Today most computers are stored-program computers, that is, they have a memory. They are getting smaller and smaller, and computing faster and faster. Even in a large computer, the part that does the actual computing is about the size of the end of a finger.
Computers can do all kinds of work. When someone buys something in a department store, in formation about the sale goes into a computer. A scientist can talk to the computer about the rocks, and the computer answers the questions. A doctor can talk to the computer and explains what is wrong with a patient. If the doctor asks why, the computer goes through its stored information and ex plains exactly why.
When early humans began fanning, it was a revolutionary change in human life. It was hundreds of thousands of years later that people developed a writing system. In less than fifty years people have developed computers that can do most of the things humans can do. This could be a frightening development.
The oldest kind of computer, the abacus, has been used since ______.
A．600
B．700
C．800
D．500
It is important to do so. It is generally recognized,【B9】, that the introduction of the computer in the early 20th century,【B10】by the invention of the integrated circuit during the 1960s, radically changed the process,【B11】its impact on the media was not immediately【B12】. As time went by, computers became smaller and more powerful, and they be came "personal" too, as well as【B13】, with display becoming sharper and storage【B14】increasing. They were thought of, like people,【B15】generations, with the distance between generations much【B16】.
It was within the computer age that the term "information society" began to be widely used to describe the【B17】within which we now live. The communications revolution has【B18】both work and leisure and how we think and feel both about place and time, but there have been【B19】view about its economic, political, social and cultural implications. "Benefits" have been weighed【B20】"harmful" outcomes. And generalizations have proved difficult.
【B1】
A．between
B．before
C．since
D．later
