题目内容
阅读下列短文，从每小题所给的四个选项中选出一个最佳答案。
The United States is not the only country affected by the “computer revolution ”. All the major countries of the world have computers, and the developing countries have also realized that computers play a big part in their economic development.
Usually what one sees is a machine that looks like a typewriter; it is called a computer terminal (终端). But computers are also used in unseen ways. For example. they determine how much time there should be between traffic signals to prevent traffic problems and to keep millions of cars moving in an orderly flow. When you buy a car, a factory process (过程) that is controlled by a computer enables you to obtain a car with your own choice of colors and special features(特征) in just a few weeks' time. In medical laboratories, computers have reduced the mistakes in testing, and they have saved doctors' countless hours of work. Before long, medical histories of all Americans will be kept in computer “banks”. If a person becomes ill far from his home, local doctors will be able to get his medical record immediately. In science, the computer has performed in minutes experiments which would have required thousands of hours of work by human hands and minds.
Most experts agree that computers are necessary to solve the problems of increasing population, city living, and public affairs. Without computers, the jobs of solving these problems would require millions of workers to do tons of paperwork. Before any computer can work on any problem, it must be told what to do. Someone must program the computer, step-by-step. At first this was done by having the programmer write out his instructions in the form of numbers which would be “understood” by the machine. Within a short time, attempts were made to perform a system that would enable humans to communicate more easily with machines. Different “languages” were developed by means of which the programmer could use words that had meanings for him, and another program in the machine would translate the words into the computer's number system.
Without special training, it is impossible to understand exactly how a computer does its work. However, many people without scientific training use computers in their daily lives. In some American schools, for example, young children are being taught by computers for part of the school day.
The use of computers in school has worried some Americans. There are those who fear it will remove human element (成分) from teacher-student relationships. On the other hand, there are educators who consider computer program a valuable means of freeing teachers from the more boring and tiring tasks, thus enabling them to spend more time with a single student.
In education, as in business and industry, science and medicine, computers play an important part in almost every type of operation. The future will bring major advances in computer technology, which will aid man in his efforts to improve the world.
1．According to the context, the author has written the passage mainly for ________ .
[ ]
A．young children
B．experienced operators
C．common readers
D．scientists in the computer field
2．Operators of computers should give instructions to work in the form of program ________ .
[ ]
A．which are introduced in turn into computers
B．through which computers could process “language”
C．which could tell computers what to do and how to do
D．all of the above
3．The arguments for computer program used in education were that
[ ]
A．computers like toys would attract much attention of school children
B．there are lots of buttons which you can press for doing anything at your will
C．computer program would take the place of teachers, turning a school into a computer world
D．computers could give teachers the opportunity to spare time to deal with students respectively
4．Which of the following best express the main idea of this passage?
[ ]
A．The world will enjoy the beautiful picture of the computers.
B．Computer technology will change the human life.
C．Computer would work freely in the future.
D．Computer would work with a great memory-storage and at highest speed.
发散思维新课堂系列答案
第二部分：阅读理解（共25小题；第一节每小题2分，第二节每小题1分，满分45分）
第一节：阅读下列短文，从每小题所给的四个选项A、B、C、D中，选出最
佳选项，并在答题卡上将该项涂黑。
A．
Each Indian tribe had a different language. Many Indians never learned any language except their own. Do you know how Indians from different tribes talked to each other? They had two ways to talk without sound． One way was by sign language; the other way by signals.
Sign language is a way of talking by using signs. Indians used sign language when they met strangers. In this way, they could find out whether the stranger was a friend or an enemy. In the Indian sign language, signs were made with the hands. One sign meant “man”. Another meant “horse”. To tell the time of day when something happened, an Indian pointed to the sky. He showed where the sun had been at the time.
Indians usually used signals when they wanted to send messages to someone far away. To make signals, an Indian might use a pony. He might use a blanket. Or he might use smoke, a mirror or fire arrows.
To signal that he had seen many animals, an Indian rode his pony in a large circle. Sometimes the Indian gave a signal like this and then went away to hide. This meant that there was danger.
The blanket signal was visible from far away. An Indian held the corners of a blanket in his hands. Then he began to swing the blanket from side to side in front of him. An Indian could send many different signals with his blanket.
He could also send many signals with a mirror. He usually used the mirror to warn someone of danger. Or he attempted to get the attention of a person far away. But he also used it to send messages in code. Of course, mirrors could be used only when the sun was shining. At night, Indians used fire arrows for signaling.
An Indian also sent signals with smoke. He made a small fire of dry wood． Then he put grass or green branches on it. He held a blanket over the fire for a minute. When he removed the blanket from the fire, there was a cloud of smoke. The number of clouds of smoke told his message in code.
Now you can see that Indians didn’t need to learn each other’s language. They could talk to one another by using signals or sign language.
41． The whole text is mainly about _______.
A． different tribes have different languages
B． the Indians had many kinds of languages
C． how Indians communicated between different tribes
D． why the Indians used many languages
42． An Indian used a mirror to do all the followings EXCEPT _______.
A． send messages in code
B． get the attention of someone in the distance
C． warn someone of danger
D． to tell a friend from an enemy
43． Sign language is _______.
|
C． a kind of gesture only for Indians
D． a way to express one’s ideas by making gestures
44． Indians didn’t need to learn each other’s language because _______.
A． they thought they could easily make themselves understood
B． they could use signals or sign language
C． different tribes lived far away and never met each other
D． they never communicated with one another