题目
题型：同步题难度：来源：
jobs. Some robots do regular jobs. Bobby, the mail carrier, brings mail to a large office building in Washington,
D.C. He is one of 250 mail carriers in the United States.
Mr. Leachim, who weighs two hundred pounds and is six feet tall, has some advantages as a teacher. One
is that he does not forget details. He knows each child"s name, the parents" names and what each child knows
and needs to know. In addition, he knows each child"s pets and hobbies. Mr. Leachim does not make mistakes.
Each child goes and tells him his or her name, then dials an identification (身份证明) number. His computer
brain puts the child"s voice and number together. He identifies the child with no mistakes. Then he starts the
lesson.
Another advantage is that Mr. Leachim is flexible. If the children need more time to do their lessons they
can move switches. In this way they can repeat Mr. Leachim"s lesson over and over again. When the children
do a good job he tells them something interesting about their hobbies. At the end of the lesson the children
switch Mr. Leachim off.
B. robots will take the place of man to rule the earth
C. we can only use robots to do some regular jobs
D. robots can help people in many different ways
B. appearance
C. advantage
D. energy
B. To talk to the students in different languages.
C. To keep everyone"s interest in his lesson.
D. To introduce more hobbies to the children.
B. not hard
C. suitable
D. changeable
B. Mr. Leachim is run and controlled by electricity.
C. Bobby works in a large office building in Washington D. C.
D. The lessons taught by Mr. Leachim are given on a TV set.
答案
核心考点
试题【阅读理解。 Robots are smart. With their computer brains, they help people work i】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Blind people are better at locating sounds than people who can see, a new study says, without the benefits
of vision the ears seem to work much better.
Previous studies have shown that blind people are better than others at reaching out and touching the
sources of sounds that are close by. Researchers from the University of Montreal wanted to see if blind people
were also better at locating sounds that are far away.
Twenty-three blind people participated in the study. All had been sightless for at least 20 years. Fourteen of
them had lost their vision before age 11; the rest went blind after age 16. The experiment also included 10 people
who could see but were wearing blind-folds.
In one task, volunteers had to pick the direction of a sound coming from about 3 metres away. When the
sound was in front of them or slightly off center in front, both groups performed equally well.
When sounds came from the side or the back, however, the blind group performed much better than the
blindfolded group. The participants who had been blind since childhood did slightly better than those who lost
their sight later.
Recognizing the locations of distant sounds can be a matter of life-or-death for blind people, say the
researchers. Crossing the street, for instance, is much harder when you can"t see the cars coming.
Still, the researchers were surprised by how well the blind participants did, especially those who went blind
after age 16. In another experiment, the scientists also found that parts of the brain that normally deal with
visual information became active in locating sound in the people who were blind by age 11. These brain parts
didn"t show sound-location activity in the other group of blind people or in the sighted people. The scientists
now want to learn more about the working of brains of "late-onset" blind people.
B. the locations of distant sounds
C. the direction of sharp sounds
D. the distance of a sound in front of them
B. Where is That Noise Coming from?
C. Hearing Better in the Dark
D. What If Living without Your Eyes?
B. Those who have gone blind since children.
C. Those who went blind at age 16.
D. Those who are blindfolded.
B. All the volunteers in the experiment are sightless.
C. All the participants did equally well when picking sounds from whatever direction.
D. The later people become blind, the better they can perform in telling the direction of sounds.
land masses and blue- green oceans. We had never seen the Earth from that distance before. To us, it appeared
as though the Earth had always looked that way and always would. Scientists now know, however, that the
surface of the Earth is not as permanent as we had thought.
Scientists explain that the surface of our planet is always moving. Continents moves about the Earth like
huge ships at sea. They float on pieces of the Earth"s outer skin. New outer skin is created as melted rock
pushed up from below the ocean floor. Old outer skin is destroyed as it rolls down into the hot area and melts
again.
Only since the 1960s have scientists really began to under- stand that the planet Earth is a great living
machine. Some experts have said this new understanding is one of the most important revolutions in scientific
thought. The revolution is based on the work of scientists who study the movement of the continents-a science
called plate tectonics.
The modern story of plate tectonics begins with the German scientist Alfred Wegener. Before World War
One, Wegener argued that the continents had moved and were still moving. He said the idea first occurred to
him when he observed that the coastlines of South America and Africa could fit together like two pieces of a
puzzle. He proposed that the two continents might have been one and then split apart.
Wegener was not the first person to wonder about the shape of the continents. About 500 years ago,
explorers thought about it when they made the first maps of Americas. The explorers noted the east coast of
North America and South America would fit almost exactly into the west coast of Europe and South Africa.
What the explorers did not do, but Wegener did, was to investigate the idea that the continents move.
B. Human"s recognition of the earth"s surface.
C. The German scientist Alfred Wegener.
D. The early explorers" discovery.
B. Our ancient thought that the surface of the earth is still.
C. Alfred Wegener was not the first person to investigate the idea that the continents move.
D. The coastlines of India and Africa fit together.
B. study of architecture
C. earth surface
D. structural geology
of man. The sea has provided man with food and a convenient (便利的) way to travel to many parts of the
world. Today, nearly two thirds of the world"s population live within 80 kilometers of the sea coast.
In the modern technological world, the sea offers many resources to help mankind survive (=continue to
live). Resources on land are beginning to be used up. The sea, however, still can be hoped to supply many of
man"s needs.
The list of riches of the sea yet to be developed by man"s technology is impressive. Oil and gas explorations
(探险) have been carried out for nearly 30 years. Valuable amounts of minerals exist on the ocean floor ready
to be mined (开采).
Fish farming promises to be a good way to produce large quantities of food. The culture of fish and shellfish
(贝类动物) is an ancient skill practised in. the past mainly by Oriental people.
Besides oil and gas, the sea may offer new sources of energy. Experts believe that the warm temperature
of the ocean can be used in a way similar to the steam in a steamship. Ocean currents (水流) and waves offer
possible use as a source of energy.
Technology is enabling man to explore (勘探) ever more deeply under the sea. The development of strong,
new materials has made this possible.
The technology to harvest the sea continues to improve. Experts believe that by the year 2020 the problems
that prevent us from exploiting fully the food, minerals, and energy sources of the sea will be largely solved.
B. minerals and oil
C. warm temperature and ocean currents
D. the food, energy sources, and minerals
B. the sea, in the broad sense, has not yet been developed
C. the problems that prevent us from using the food, minerals, and energy sources of the sea have already been solved
D. by the year 2000, the technology will be good enough to exploit all the sea resources
B. Sea Food
C. Technology for Exploiting the Sea
D. Man and the Sea
been able to increase greatly the efficiency of our work force. New machines and new methods have helped
cut down time and expense while increasing overall output. This has meant more production and a higher
standard of living. For most of us in America, modern technology is thought of as the reason why we can have
cars and television sets. However, technology has also increased the amount of food available to us, by means
of modern farming machinery and animal breeding techniques, and has extended our life span via (通过)
medical technology.
Will mankind continue to live longer and have a higher quality of life? In large measure the answer depends
on technology and our ability to use it widely. If we keep making progress as we have over the past fifty years,
the answer is definitely yes. The advancement of technology depends upon research and development, and the
latest statistics (统计) show that the United States is continuing to pump billions of dollars annually (每年) into
such efforts. So while we are running out of some scarce resources (稀有资源) we may well find technological
substitutes (代用品) for many of them through our re- search programs.
Therefore, in the final analysis the three major factors of production (land, labor and capital) are all influenced
by technology. When we need new skills, on techniques in medicine, people will start developing new technology
to meet those needs. As equipment proves to be slow or inefficient, new machines will be invented. Technology
responds to our needs in helping us maintain our standard of living.
B. Modern technology.
C. The application of technology.
D. The development of technology.
B. The three major factors of production(land, labor and capital) are all influenced by technology.
C. Technology is the response to our needs.
D. The United States is making great efforts to advance its technology.
B. medical technology
C. modern farming machinery
D. technological substitute
The most widespread fallacy (谬误) of all is that colds are caused by cold. They are not. They are caused
by viruses (病毒) passing on from person to person. You catch a cold, and it would be reasonable to expect
the Eskimos to suffer from them forever. But they do not. And in isolated arctic regions explorers have reported
being free from colds until coming into contact again with infected people from the outside world by way of
packages and mail dropped from airplanes.
During the First World War soldiers who spent long periods in the trenches (战壕),cold and wet, showed
no increased tendency to catch colds.
In the Second World War prisoners at the notorious Auschwitz concentration camp (奥斯维辛集中营),
naked and starving, were astonished to find that they seldom had colds.
At the Common Cold Research Unit. England, volunteers took part in experiments in which they gave
themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put
on bathing suits, allowed themselves to be dipped with cold water, and then stood about dripping wet in drafty
room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the
volunteers came down with a cold unless a cold virus was actually dropped in his nose.
In the cold we have nothing to do with catching colds, but why are they more frequent in the winter?
Despite the most pains-taking research, no one has yet found the answer. One explanation offered by scientists
is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier
for cold viruses to be passed on.
No one has yet found a cure for the cold. There are drugs and pain suppressors (止痛片) such as aspirin,
but all they do is to relieve the symptoms (症状).
B. 5
C. 6
D. 3
B. Colds are not caused by cold.
C. People suffer from colds just because they like to stay indoors.
D. A person may catch a cold by touching someone who already has one.
B. they are writing reports in terribly cold weather
C. they are free from work in the isolated arctic regions
D. they are coming into touch again with the outside world
B. never caught colds
C. often caught colds
D. became very strong
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