题目内容
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A.They have brought in the new way of communication．
B.They have explored more chances to communicate．
C.They have strengthened the relationship between people．
D.They have altered the character of relationships．
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听力原文： Most Americans think that ice cream is as American as baseball and apple pie. But ice cream was known long before America was discovered.
The Roman emperor Nero may have made a kind of ice cream. He hired hundreds of men to bring snow and ice from the mountains. He used it to make cold drinks. Traveler Marco Polo brought back recipes for chilled and frozen milk from China.
Hundreds of years later, ice cream reached England. It is said that King Charles I enjoyed that treat very much. There is a story that he bribed his cook to keep the recipe for ice cream a royal secret. Today ice cream is known throughout the world. Americans eat more than two billion quarts a year.
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A．They think that ice cream is very new.
B．They know that ice cream is brought from Europe.
C．They think that ice cream was an American idea.
D．They don't know what ice cream is.
Are thoughts and behavior. determined by heredity (遗传) or by environment？ Social scientists have long been interested in this question; the results of "twin studies" are particularly interesting to them.Twin studies of the similarities and differences between twins.There are two types of twins: identical twins, who look exactly the same because they have identical genetic characteristics, and fraternal twins, who have different genetic characteristics.In a 1937 study, Newman, Freeman, and Halzinger found that identical twins are more similar in height and weight than fraternal twins.Because identical twins have the same genetic characteristics, the conclusion was that size is determined more by heredity than by environment.In 1962, James Shields compared the height, weight, and intelligence of identical twins who were brought up together (in the same environment) with those of identical twins brought up apart (in different environments).He found that although the differences were small, identical twins who were brought up together were more similar than those brought up apart.Shields concluded that height, weight, and intelligence are largely determined by heredity.However, because of the differences between identical twins brought up together and those brought up apart, these characteristics may be partly determined by environment.
In the case of Oscar and Jack, heredity seems to determine physical and mental abilities, tastes, and behavior.Environment seems to determine thought.
1.After their parents' divorce, Oscar and Jack ______.
A.went to live with their mother's family
B.were brought up by their father
C.never saw each other again
D.were separated until 1954
2.Although Oscar and Jack are similar in many ways, they seem to be different in_______.
A.physical ability
B.behavior
C.mental ability
D.thought
3.Identical twins are more similar than fraternal twins because_______.
A.they have the same mother
B.they have the same genetic characteristics
C.they were brought up together
D.they were born at the same time
4.The conclusion of Newman, Freeman and Halzinger's 1937 twin study was that_______.
A.size is determined by height, weight, and environment
B.identical twins are taller and heavier than fraternal twins
C.size is determined more by heredity than by environment
D.identical twins are more similar than fraternal twins
5.Shield drew a slightly different conclusion from his study because_______.
A.he also compared the intelligence of the twins in his study
B.he compared twins brought up together with those brought up apart
C.only identical twins were included in his study
D.all of the environment factors were carefully controlled
A．They would be killed by the human immune system.
B．They would die once brought to the surface.
C．Many precautions and remedies are available.
D．Drilling operations are always closely monitored.
A．They led to the discovery of America.
B．They made native American foods popular.
C．They brought great wealth to Spain.
D．They made native American life styles well known.
In many other countries, the baby sleeps in the same bed with his parents or in a bed near them.
The space in the home also shows a lot about psychological space needs.Some families gather closer to each other and the size of their house has nothing to do with it.Others have separate little corners where family members go to be alone.
Although it is true that psychological space needs are not decided by economic reasons, they sometimes have to be changed a little because of economic pressures.It is almost impossible, however, to completely change your psychological space needs.
26.The passage is chiefly concerned with _______.
A.American way of living
B.living conditions in different countries
C.space requirements in different cultures
D.space requirements and economic factors
27.According to the author, the amount of living space a person needs is decided by ______.
A.his cultural background
B.the relationship between the family members
C.his financial situations
D.how many rooms there are in his house
28.The example of American families seems to suggest that ______.
A.Americans are more eager to be alone when they are at home
B.psychological space needs are developed when one is very young
C.it is advisable to let the baby sleep with his parents
D.it is advisable to let the baby sleep in a separate room
29.Some families gather close to each other at home because _______.
A.they have limited living space
B.it satisfies their psychological space needs
C.they have been brought up in a small family
D.they haven’t small corners for themselves
30.According to the author, psychological space needs _______.
A.will change as one’s incomes reduced
B.can be changed at will
C.will change if you move to a smaller house
D.can hardly be changed altogether
A．They found ways to speed up the reproduction of bald eagles.
B．They developed new types of feed for baby bald eagles.
C．They explored new ways to hatch baby bald eagles.
D．They brought in bald eagles from Canada.
A．They led to the discovery of America.
B．They made American native foods popular.
C．They brought great wealth to Spain.
D．They made native American life styles well known.
听力原文： The diamond is considered the most famous, elegant and valuable jewel in the world. It is the hardest substance found in nature. Its hardness and high dispersion of light make it useful for industrial applications and jewelry.
Diamonds were made as a result of great volcanic heat and pressure. A volcano is a mountain with a hole in the top. When a volcano is very active it sometimes explodes and causes great damage.
Diamonds were pushed towards the surface of the earth-millions of years ago-by a number of great volcanic explosions. It is in the narrow volcanic pipes that diamonds are found. They are also found among the sand and stones of certain riverbeds, and in a few places on the floor of the sea, for they were washed down the mountainsides by the rain.
Diamonds are very rare. There are not many diamond pipes or diamond-producing rivers in the world. During the last century, adventurers from Europe went to Brazil, because they had heard that there were diamonds in the River Amazon. [34]Most of these early diamond miners died of illness or were lost forever in the great forests.
The earliest known diamonds were found in India many centuries ago. The most recent and exciting discoveries have been made in Eastern Russia. But most of the world's diamonds now come from the Congo, from Tanzania-which has the largest diamond mine in the world-and from South Africa.
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A．They can be easily damaged.
B．They are formed with great volcanic heat and pressure.
C．They are brought up to the surface by earthquakes.
D．They can be found everywhere.
A．they were seldom praised by their teachers
B．school courses failed to inspire or motivate them
C．their nonconformity brought them a lot of trouble
D．teachers were usually far stricter than their parents
What visual artists like painters want to teach is easy to make out but difficult to explain, because painters translate their experiences into shapes and colors, not words. They seem to feel that a certain selection of shapes and colors, out of the countless billions possible, is unusually interesting for them and worth showing to us. Without their work we should never have noticed these particular shapes and colors, or have felt the delight which they brought to the artist.
Most artists take their shapes and colors from the world of nature and from human bodies in motion and rest; their choices indicate that these aspects of the world are worth looking at, that they contain beautiful sights. Contemporary artists might say that they merely choose subjects that provide an interesting pattern, that there is nothing more in it. Yet even they do not choose entirely without reference to the character of their subjects. If one painter chooses to paint an infected leg and another a lake in moonlight, each of them is directing our attention to a certain aspect of the world. Each painter is telling us something, showing us something, emphasizing some- thing, all of which mean that, consciously or unconsciously, he is trying to teach us.
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A．They want to show their differences from others.
B．They want to be remembered as a master.
C．They want understanding from the public.
D．They want the public to learn from them.
