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共用题干
Geology and Health
1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.
2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.
3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.
4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.
5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.
6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.
Geology and Health
1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.
2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.
3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.
4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.
5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.
6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.
Some diseases is connected with deficiency of_______.
A:.industrially polluted soils
B: rock and soil chemistry
C:.naturally polluted soils
D: the pathways of metals into the food chain
E: the element of iodine
F: the persistence of heavy metals
A:.industrially polluted soils
B: rock and soil chemistry
C:.naturally polluted soils
D: the pathways of metals into the food chain
E: the element of iodine
F: the persistence of heavy metals
参考答案
参考解析
解析：第一段点出主题，即某些金属进入人类食谱可能与地质有关。
第三段涉及的是自然污染的土壤一般情况下对人体不会造成危害。此段首句就提示了这一点：“ So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard.”
第四段说，受到工业污染的土壤含有重金属，而重金属很稳定，不容易分解。因此，某些微量重金属被认为有可能与癌症有关，并引起中毒。
答案的依据是本段的第二句：“ Future environmental investigations of naturally polluted soils should…into the food chain and human body.”
第一段最后一句“A lack of iodine in the human diet leads to some serious disease.”是选择E的依据。
本题答案的依据是最后一段的第一句，即“There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.”
全文都在论述重金属的摄入可能会对人体健康产生有害影响。最后一段说到地质学家在解决调查这个问题能起到的作用。这个句子是：“Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.”
第四段涉及这一问题。受到工业污染的土壤含有重金属，而重金属很稳定，不容易降解，所以，要对重金属进行彻底的清除。
第三段涉及的是自然污染的土壤一般情况下对人体不会造成危害。此段首句就提示了这一点：“ So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard.”
第四段说，受到工业污染的土壤含有重金属，而重金属很稳定，不容易分解。因此，某些微量重金属被认为有可能与癌症有关，并引起中毒。
答案的依据是本段的第二句：“ Future environmental investigations of naturally polluted soils should…into the food chain and human body.”
第一段最后一句“A lack of iodine in the human diet leads to some serious disease.”是选择E的依据。
本题答案的依据是最后一段的第一句，即“There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.”
全文都在论述重金属的摄入可能会对人体健康产生有害影响。最后一段说到地质学家在解决调查这个问题能起到的作用。这个句子是：“Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.”
第四段涉及这一问题。受到工业污染的土壤含有重金属，而重金属很稳定，不容易降解，所以，要对重金属进行彻底的清除。
更多 “共用题干 Geology and Health1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.Some diseases is connected with deficiency of_______.A:.industrially polluted soilsB: rock and soil chemistryC:.naturally polluted soilsD: the pathways of metals into the food chainE: the element of iodineF: the persistence of heavy metals” 相关考题
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A had decreasedB will decreaseC has been decreasingD is decresing
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A.has been doneB.was doneC.have been doneD.were done
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A. is caughtB. are caughtC. has been caughtD. have been caught
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The Law to Keep the Oil Industry under Control
The Norwegian Government is doing its best to keep the oil industry under control.A new law limits exploration to an area south of the southern end of the long coastline;production limits have been laid down(though these have already been
raised);and oil companies have not been allowed to employ more than a limited number of foreign workers.But the oil industry has a way of getting over such problems,and few people believe that the Government will be able to hold things back for long.As on Norwegian politician said last week:“We will soon be changed beyond all recognition.”
Ever since the war,the Government has been carrying out a programme of development in the area north of the Arctic
Circle.During the past few years this programme has had a great deal of success:Tromso has been built up into a local
capital with a university,a large hospital and a healthy industry.But the oil industry has already started to draw people south,
and within a few years the whole northern policy could be in ruins.
The effects of the oil industry would not be limited to the north,however.With nearly 100 percent employment,everyone
can see a situation developing in which the service industries and the tourist industry will lose more of their workers to the oil
industry.Some smaller industries might even disappear altogether when it becomes cheaper to buy goods from abroad.The
real argument over oil is its threat to the Norwegian way of life.Farmers and fishermen do not make up most of the population,but they are an important part of it,because Norwegians see in them many of the qualities that they regard with pride as
essentially Norwegian.And it is the farmers and the fishermen who are most critical of the oil industry because of the damage
that it might cause to the countryside and to the sea.
In the south, one effect to the development of the oil industry might be _____.A.a large reduction on unemployment.
B.a growth in the tourist industry.
C.a reduction in the number of existing industries.
D.the development of a number of service industries.
考题
Passage 2
The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to
eat. some research has shown that perhaps eighty percent of all human illness are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more prone to contract certain illness because of the food that is characteristic in these cultures.
That food related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in
our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful.
The additives which we eat are not all so direct. Farmers often give penicillin to beef and poultry, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the
Food and Drug Administration （FDA） has tried repeatedly to control these procedures, the practices continue.
It can inferred from the passage that___.
A. Scientists have made all the food fit to eat.
B. Only in recent years have people found that the food is related to one’s illness.
C. All kinds of cancer are related to the diet.
D. Some additives are harmful to our health.
考题
The food we eat seems to have profound effects on our health.Although science has made enormous steps in making food more fit to eat ,it has, at the same time,made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is nto a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats,and other food additives,caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this ,penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue.
How has science done something harmful to mankind? a.Because of science , diseases caused by polluted food haven been virtually eliminated.
b.It has caused a lack of information concerning the value of food.
c.Because of the application of science,some potentially harmful substances have been added to food.
d.The scientists have preserved the color of meats,but not of vegetables.
考题
共用题干
第三篇Oil Industry in NorwayThe Norwegian Government is doing its best to keep the oil industry under control.A new law limits exploration to an area south of the southern end of the long coastline;production limits have been laid down(though these have already been raised);and oil companies have not been allowed to employ more than a limited number of foreign workers.But the oil industry has a way of getting over such problems,and few people believe that the Government will be able to hold things back for long.As an Norwegian politician said last week:"We will soon be changed beyond all recognition."Ever since the war,the Government has been carrying out a program of development in the area north of the Arctic Circle.During the past few years this program has had a great deal of success: Tromso has been built up into a local capital with a university,a large hospital and a healthy industry.But the oil industry has already started to draw people south,and within a few years the whole northern policy could be in ruins.The effects of the oil industry would not be limited to the north,however. With nearly 100 percent employment,everyone can see a situation developing in which the service industries and the tourist industry will lose more of their workers to the oil industry.Some smaller industries might even disappear altogether when it becomes cheaper to buy goods from abroad.The real argument over oil is its threat to the Norwegian way of life.Farmers and fishermen do not make up most of the population,but they are an important part of it,because Norwegians see in them many of the qualities that they regard with pride as essentially Norwegian.And it is the farmers and the fishermen who are most critical of the oil industry because of the damage that it might cause to the countryside and to the sea.In the south,one effect to the development of the oil industry might be________.A:a large reduction on unemploymentB:a growth in the tourist industryC:a reduction in the number of existing industriesD:the development of a number of service industries
考题
共用题干
第三篇Oil Industry in NorwayThe Norwegian Government is doing its best to keep the oil industry under control.A new law limits exploration to an area south of the southern end of the long coastline;production limits have been laid down(though these have already been raised);and oil companies have not been allowed to employ more than a limited number of foreign workers.But the oil industry has a way of getting over such problems,and few people believe that the Government will be able to hold things back for long.As an Norwegian politician said last week:"We will soon be changed beyond all recognition."Ever since the war,the Government has been carrying out a program of development in the area north of the Arctic Circle.During the past few years this program has had a great deal of success: Tromso has been built up into a local capital with a university,a large hospital and a healthy industry.But the oil industry has already started to draw people south,and within a few years the whole northern policy could be in ruins.The effects of the oil industry would not be limited to the north,however. With nearly 100 percent employment,everyone can see a situation developing in which the service industries and the tourist industry will lose more of their workers to the oil industry.Some smaller industries might even disappear altogether when it becomes cheaper to buy goods from abroad.The real argument over oil is its threat to the Norwegian way of life.Farmers and fishermen do not make up most of the population,but they are an important part of it,because Norwegians see in them many of the qualities that they regard with pride as essentially Norwegian.And it is the farmers and the fishermen who are most critical of the oil industry because of the damage that it might cause to the countryside and to the sea.The Norwegian Government would prefer the oil industry to________.A:provide more jobs for foreign workersB:slow down the rate of its developmentC:sell the oil it is producing abroadD:develop more quickly than at present
考题
共用题干
第三篇Oil Industry in NorwayThe Norwegian Government is doing its best to keep the oil industry under control.A new law limits exploration to an area south of the southern end of the long coastline;production limits have been laid down(though these have already been raised);and oil companies have not been allowed to employ more than a limited number of foreign workers.But the oil industry has a way of getting over such problems,and few people believe that the Government will be able to hold things back for long.As an Norwegian politician said last week:"We will soon be changed beyond all recognition."Ever since the war,the Government has been carrying out a program of development in the area north of the Arctic Circle.During the past few years this program has had a great deal of success: Tromso has been built up into a local capital with a university,a large hospital and a healthy industry.But the oil industry has already started to draw people south,and within a few years the whole northern policy could be in ruins.The effects of the oil industry would not be limited to the north,however. With nearly 100 percent employment,everyone can see a situation developing in which the service industries and the tourist industry will lose more of their workers to the oil industry.Some smaller industries might even disappear altogether when it becomes cheaper to buy goods from abroad.The real argument over oil is its threat to the Norwegian way of life.Farmers and fishermen do not make up most of the population,but they are an important part of it,because Norwegians see in them many of the qualities that they regard with pride as essentially Norwegian.And it is the farmers and the fishermen who are most critical of the oil industry because of the damage that it might cause to the countryside and to the sea.According to the passage,the oil industry might lead northern Norway to________.A:the development of industryB:a growth in populationC:the failure of the development programD:the development of new towns
考题
共用题干
第三篇Oil Industry in NorwayThe Norwegian Government is doing its best to keep the oil industry under control.A new law limits exploration to an area south of the southern end of the long coastline;production limits have been laid down(though these have already been raised);and oil companies have not been allowed to employ more than a limited number of foreign workers.But the oil industry has a way of getting over such problems,and few people believe that the Government will be able to hold things back for long.As an Norwegian politician said last week:"We will soon be changed beyond all recognition."Ever since the war,the Government has been carrying out a program of development in the area north of the Arctic Circle.During the past few years this program has had a great deal of success: Tromso has been built up into a local capital with a university,a large hospital and a healthy industry.But the oil industry has already started to draw people south,and within a few years the whole northern policy could be in ruins.The effects of the oil industry would not be limited to the north,however. With nearly 100 percent employment,everyone can see a situation developing in which the service industries and the tourist industry will lose more of their workers to the oil industry.Some smaller industries might even disappear altogether when it becomes cheaper to buy goods from abroad.The real argument over oil is its threat to the Norwegian way of life.Farmers and fishermen do not make up most of the population,but they are an important part of it,because Norwegians see in them many of the qualities that they regard with pride as essentially Norwegian.And it is the farmers and the fishermen who are most critical of the oil industry because of the damage that it might cause to the countryside and to the sea.The Norwegian Government has tried to________.A:encourage the oil companies to discover new oil sourcesB:prevent oil companies employing people from northern NorwayC:help the oil companies solve many of their problemsD:keep the oil industry to something near its present size
考题
共用题干
Geology and Health1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution. Paragraph 1______A:.No evidence to indicate bad effects of naturally contaminated soilB:.Potential hazards of human contaminated soilsC: Research on channels of heavy metals getting into human food chainD: Geology and health problemsE:.Rocks-the ultimate source of soil pollutionF: Long-term health effects on children
考题
共用题干
Geology and Health1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution. Geologists are indispensable in the research project on geology and health due to their knowledge on_______.A:.industrially polluted soilsB: rock and soil chemistryC:.naturally polluted soilsD: the pathways of metals into the food chainE: the element of iodineF: the persistence of heavy metals
考题
共用题干
Geology and Health1. The importance of particular metals in the human diet has been realized within the past few decades,and the idea that geology might be related to health has been recognized for a number of elements such as iodine,zinc and selenium. For example,soils with low iodine contents produce crops,and animals deficient in iodine.A lack of iodine in the human diet leads to some serious diseases.2.The ultimate source of metals within the human body is rocks,which weather into soil.gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth .The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemis-try and health of plants,animals and people.3. So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems.Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled.However,small chil-dren are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.4. Heavy metals are persistent:they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.5.In contrast,naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures,despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.6.There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils.Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body.Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution. It is extremely necessary to study the long-term effects caused by living on_______.A:.industrially polluted soilsB: rock and soil chemistryC:.naturally polluted soilsD: the pathways of metals into the food chainE: the element of iodineF: the persistence of heavy metals
考题
The number of foreign students attending Chinese universities __________ rising steadily in the past ten years.A.was
B.were
C.has been
D.have been
考题
It may be pointed out that warfare（战争）as practiced by man has no parallel in nature,This is to say that within the more highly developed animal populations of this earth,there is not now.nor has there been similar destruction within a species（物种）itself.In fact,one has to go to the lowliest forms of animal life,such as certain kinds of ants,to find anything comparable to human warfare.It is a curious fact that mankind appears to give the killing of his own kind a good reason by imaging that it is a"law of nature".There are now a lot of wrong ideas about the laws of nature,of which this is one of the most incorrect and fateful（致命的）.Political beliefs have been based upon it with results that have come near to destroying human civilization.The theory that war is a biological necessity.that it is nature′s method of controlling population and believing in the survival（生存）of the strong and the elimination（灭亡）of the weak,is totally wrong and insupportable.Within the last century.when wars have been common all over the world,the human population of the earth has almost doubled.
The main idea of this passage isA.warfare is a"law of nature"
B.warfare is not a"law of nature"
C.warfare does not control human population
D.none of the lowlier animals,except ants,practice warfare upon their own species
考题
In the past few decades,the influence of political parties has been declining（）Aso the political parties are no longer importantBso an independent presidential candidate can win a national electionCbut without the backing of a political party,a presidential candidate still cannot winDso the presidential election has become more unpredictable
考题
NHS has suffered from under-funding in recent decades,as a result of which many（）people have been turning to private medical health care.Aworking classBelderlyCeducatedDbetter-off
考题
In the past few decades,the influence of political parties has been declining（）A、so the political parties are no longer importantB、so an independent presidential candidate can win a national electionC、but without the backing of a political party,a presidential candidate still cannot winD、so the presidential election has become more unpredictable
考题
单选题NHS has suffered from under-funding in recent decades,as a result of which many（）people have been turning to private medical health care.A
working classB
elderlyC
educatedD
better-off
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问答题The Importance of being Interested 1) Now I have recalled these beginnings of the careers of Franklin, Darwin and Mozart because they strikingly illustrate a profound psychological truth the significance of which can scarcely be overestimated. 2) It is fl truth, to be sure, that has long been partially recognized. 3)But its full meaning has not been--and could not be—appreciated until quite recently. 4)Only within the past few years has scientific research effected various discoveries which make its complete recognition possible and of supreme importance—of such importance that practical application of the principles involved would make for an immediate and stupendous increase in human happiness, efficiency, and welfare. 5)Stated briefly, the truth in question is that success in life, meaning thereby t he accomplishment of results of real value to the individual and to society, depends chiefly on sustained endeavor springing out of a deep and ardent interest in the tasks of one's chosen occupation.
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单选题While several baseball teams have tried to supplant the Yankees as the dominant team in baseball, their inability has been unable to win even half as many World Series as the Yankees have won in the past one hundred years.A
their inability has been unableB
the inability they possess has not been ableC
having been unableD
they were unableE
they have been unable
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单选题In the past few decades,the influence of political parties has been declining（）A
so the political parties are no longer importantB
so an independent presidential candidate can win a national electionC
but without the backing of a political party,a presidential candidate still cannot winD
so the presidential election has become more unpredictable
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单选题As a result of the epidemic of AIDS in Africa, _____.A
the life span for most of the people has been reduced by 40 yearsB
most young people have been infected with human immunodeficiency virusC
people will have to learn to live with the disease for over 50 yearsD
the achievements made in preserving people’s health in the past will be wiped off
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