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提问人：网友manfred 发布时间：2022-01-07

[主观题]

It's natural that he ______ his homework on time. He is always a good student.

A、finishes

B、finished

C、can finish

D、finish

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更多“It's natural that he ______ his homework on time. He is always a good student.”相关的问题

第1题

The U.S. has to deal with the problems arising from vehicle use he cause______.A．most Amer

The U.S. has to deal with the problems arising from vehicle use he cause______.

A．most Americans are reluctant to switch to public transportation systems

B．the present level of oil prices is considered unacceptable

C．other countries will protest its increasing greenhouse emissions

D．it should take a lead in conserving natural resources

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第2题

If a mother pushes her small son in a swing, giving only a light force each time he return

s, eventually he will be swinging quite high. The child can do this for himself by using his legs to increase the motion, but both the mother's push and the child's leg movements must occur at the proper moment, or the extent of the swing will not increase. In physics, increasing the swing is increasing the amplitude; the length of the rope on the swing determines its natural oscillation period. This ability of an object to move periodically or to vibrate when stimulated by a force operating in its natural period is called resonance.

Resonance is observed many times without consciously thinking about it; for example, one may find an annoying vibration or shimmy in an automobile, caused by a loose engine mount vibrating with increasing amplitude because of an out-of-round tire. The bulge on the tire slaps the pavement with each revolution; at the natural resonance point of the engine mount, it will begin to vibrate. Such vibrations can result in considerable damage if allowed to persist. Another destructive example of resonance is the shattering of a crystal goblet by the production of a musical tone at the natural resonant point of the goblet. The energy of the sound waves causes vibration in the glass; as its amplitude increases, the motion in the glass exceeds the elasticity of the goblet, and it shatters.

An instrument called a tachometer makes use of the principle of resonance. It consists of many tiny bars, loosely fastened together and arranged so that each bar can slide independently of the others. Movement of the bars causes changes in a dial. When placed next to a rotating motor or engine, the tachometer picks up slight vibrations which are transferred to the resonant bars. These bars begin to move, and the resulting dial may be read to find the revolutions per minute of the motor very quickly.

An object, if moving rhythmically when stimulated in a natural period, is said to ______.

A．vibrate

B．resonate

C．swing

D．oscillate

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第3题

Diogenes was the founder of the creed called Cynicism （the word means "doggishness"); he s

Diogenes was the founder of the creed called Cynicism (the word means "doggishness"); he spent much of his life in the rich, lazy, corrupt Greek city of Corinth, mocking and satirizing its people, and occasionally converting one of them. He was not crazy. He was a philosopher who wrote plays and poems and essays expounding his doctrine; he talked to those who cared to listen; he had pupils who admired him. But he taught chiefly by example. All should live naturally, he said, for what is natural is normal and cannot possibly be evil or shameful. Live without conventions, which are artificial and false; escape complexities and superfluities and extravagance; only so can you live a free life. The rich man believes he possesses his big house with its many rooms and its elaborate furniture, his pictures and his expensive clothes, his horses and his servants and his bank accounts. He does not. He depends on them, he worries about them, he spends most of his life's energy looking after them; the thought of losing them makes him sick with anxiety. They possess him. He is their slave. In order to procure a quantity of false, perishable goods he has sold the only true, lasting good, his own independence.

Diogenes thought most people were only half-alive, most men only half-men. At bright noonday he walked through the market place carrying a lighted lamp and inspecting the face of everyone he met. They asked him why. Diogenes answered, "I am trying to find a man."

To a gentleman whose servant was putting on his shoes for him, Diogenes said, "You won't be really happy until he wipes your nose for you; that will come after you lose the use of your hands."

And so he lived—like a dog, some said, because he cared nothing for privacy and other human conventions, and because he showed his teeth and barked at those whom he disliked. Now he was lying in the sunlight, as contented as a dog on the warm ground, happier than the Shah of Persia. Although he knew he was going to have an important visitor, he would not move.

According to the passage which one of the following is in accord with Diogenes's philosophy？

A．We should lead a lazy and idle life.

B．People should live a natural and simple life.

C．We'd better enjoy a luxurious life.

D．We should make an easy living just like a dog.

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第4题

For me, scientific knowledge is divided into mathematical sciences, natural sciences deali

ng with the natural world (physical and biological), and sciences dealing with mankind (psychology, sociology, all the sciences of culture achievements, and every kind of historical knowledge). Apart from these sciences is philosophy, about which we will talk later. In the first place, all this is pure or theoretical knowledge, sought only for the purpose of understanding, in order to fulfill the need to understand what is intrinsic and consubstantial to man. What distinguishes man from animal is that he knows and needs to know. If man did not know that the world existed, and that the world was of a certain kind, that he was of a certain kind, he wouldn't be man. The technical aspects or applications of knowledge are equally necessary for man and are of the greatest importance, because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.

But even while enjoying the results of technical progress, he must defend the primacy and autonomy of pure knowledge. Knowledge sought directly for its practical applications will have immediate and foreseeable success, but not the kind of important result whose revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a well-known example. If the Greek mathematicians had not applied themselves to investigation of conic sections, zealously and without the least suspicion that it might someday be useful, it would not have been possible centuries later to navigate far from shore. The first men to study the nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity, would eventually lead to modern electrical technology, without which we can scarcely conceive of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot resign itself to ignorance. But, in addition, it is the foundation for practical results that would not have been reached if this knowledge had been sought disinterestedly.

The author does not include among the sciences the study of ______.

A．astronomy

B．economics

C．anthropology

D．literature

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第5题

听力原文： Today I will continue my discussion of the behaviorist school of psychology, and

tell you what I feel about some problems related to behaviorism. The psychologist wishes to know human behavior. and human mind. He or she must therefore design methods of investigating human beings when they actually live. The behaviorist school of psychology, however, has done almost all of its studies under laboratory conditions. Behaviorism seems to want the respectability of natural science, but it uses the methods of fifty years ago. Moreover, behaviorist studies often do not make any great contributions, but the author will cover this up with mathematical tables and statistics which are not important for the study. To investigate human behavior. in a more natural setting is difficult, I admit. Nevertheless, there are at least two ways to conduct such a task.

According to the speaker, what are the problems related to behaviorism？

A．The behaviorist school of psychology has done its studies under laboratory conditions.

B．Behaviorism uses the update methods.

C．Mathematical tables and statistics are not very useful.

D．All of the above.

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第6题

For me, scientific knowledge is divided into mathematical sciences, natural sciences or sc

iences dealing with the natural world (physical and biological sciences), and sciences dealing with mankind (psychology, sociology, all the sciences of cultural achievements, every kind of historical knowledge). Apart from these sciences is philosophy, about which we will talk later. In the first place, all this is pure of theoretical knowledge, sought only for the purpose of understanding, in order to fulfill the need to understand what is intrinsic and consubstantial to man. What distinguishes man from animal is that he knows and needs to know. If man did not know that the world existed, and that the world was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn't be man. The technical aspects or applications of knowledge are equally necessary for man and are of the greatest importance because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.

But even while enjoying the results of technical progress, he must defend the primacy and autonomy of pure knowledge. Knowledge sought directly for its practical applications will have immediate and foreseeable success, but not the kind of important result whose revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a well-known example. If the Greek mathematicians had not applied themselves to the investigation of conic sections, zealously and without the least suspicion that it might someday be useful, it would not have been possible centuries later to navigate far from shore. The first man to study nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity, would eventually lead to modern electrical technology, without which we can scarcely conceive of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot resign itself to ignorance. But, in addition, it is the foundation for practical results that would not have been reached if this knowledge had not been sought disinterestedly.

The most important advances made by mankind come from______.

A．apparently useless information

B．the natural sciences

C．philosophy

D．technical applications

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第7题

Learning for Its Own Sake For me, scientific knowledge is divided into mathematical scienc

Learning for Its Own Sake

For me, scientific knowledge is divided into mathematical sciences, natural sciences or sciences dealing with the natural world (physical and biological sciences), and sciences dealing with mankind (psychology, sociology, all the sciences of cultural achievements, every kind of historical knowledge). Apart from these sciences is philosophy, about which we will take shortly. In the first place, all this is pure or theoretical knowledge, sought only for the purpose of understanding, in order to fulfill the need to understand that is intrinsic and consubstantial to man. What distinguishes man from animal is that he knows and needs to know. If man did not know that the world existed, and that the world was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn' t be a man. The technical aspects of applications of knowledge are equally necessary for man and are of the greatest importance, because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.

But even while enjoying the results of technical and the results of technical progress, he must defend the primacy and autonomy of pure knowledge. Knowledge sought directly for its practical applications will have immediate and foreseeable success, but not the kind of important result whose revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a well - known example. If the Greek mathematicians had not applied themselves to the investigation of conic sections, zealously and without the least suspicion that it might someday be useful, it would not have been possible centuries later to navigate far from shore. The first men to study the nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity, would eventually lead to modem electrical technology, without which we can scarcely conceive of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot resign itself to ignorance. But, in addition, it is the foundation for practical results that would not have been reached if this knowledge had not been sought disinterestedly.

The author points out that the Greeks who studied conic sections______

A．invented modern mathematical applications

B．were interested in navigation

C．were unaware of the value of their studies

D．worked with electricity

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第8题

For me, scientific knowledge is divided into mathematical sciences, natural sciences or sc

In the first place, all this is pure or theoretical knowledge, sought only for the purpose of understanding, in order to fulfill the need to understand what is essential and substantial to man. What distinguishes man from animal is that he knows and needs to know. If man did not know that the world existed, and the world was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn' t be man. The technical aspects of applications of knowledge are equally necessary for man and are of the greatest importance, because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.

But even while enjoying the results of technical progress, he must defend the primacy and independence of pure knowledge. Knowledge sought directly for its practical applications will have immediate and foreseeable success, but not the kind of important result whose revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a well-known example. If the Greek mathematicians had not applied themselves to the investigation of conic sections, zealously and without the least suspicion that it someday be useful, it would not have been possible centuries later to navigate far from shore. The first men to study the nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity, would eventually lead to modem electrical technology, without which we can scarcely conceive of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot resign itself to ignorance. But, in addition, it is the foundation for practical results that would not have been reached if this knowledge had not been sought disinterestedly.

In the author's opinion, ______.

A．both social and natural sciences are aimed at understanding only

B．both pure knowledge and its applications are equally essential to man

C．philosophy is totally independent of the sciences referred to in the text

D．the revolutionary results of pure science can hardly be imagined by Utopians

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第9题

If we view a science as a body of systematized knowledge, then chemistry is usually called

a natural science because it 【C1】______ knowledge of the natural world. At times we may wonder 【C2】______ there is no complete system 【C3】______ all of chemistry fits perfectly. Gaps in the present system, however, show that chemistry is still a(n) 【C4】______ subject and that we 【C5】______ all of its facts, laws, and theories. 【C6】______ , chemistry as a science is very much 【C7】______ us today, and its future holds the bright promise 【C8】______ much more to come.

Man's knowledge about himself and nature has grown into 【C9】______ sciences. The growth of the separate sciences has been more developmental than intentional. The separation of the natural sciences into physical and biological sciences, and physical sciences into physics and chemistry, happily 【C10】______ a larger body of knowledge into more manageable parts. At the same time we should remember that the concepts, techniques, and applications of the various sciences are interdependent and not exclusively a part of one science or 【C11】______ . In this 【C12】______ , chemistry is a key science among the natural sciences because everyone, 【C13】______ the area of natural science he wishes to pursue, needs at least an introduction to the principles and simpler applications of chemistry as a foundation for his specialty.

Chemistry deals with the 【C14】______ of matter, changes in matter, the laws and principles 【C15】______ these changes, and the concepts and theories that interpret them.

【C1】

A．is associated to

B．is connected to

C．is connected with

D．deals

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第10题

The environment is everything that surrounds us: plants, animals, buildings, country, air,

water—literally everything that can affect us in any way. The environment of a town, with its buildings and traffic and its noise and smells, where everyone is on top of everyone else, is a far cry from that of the countryside, with its fields and crops, its wild and domestic animals and its feeling of spaciousness. And the environment differs in different parts of the world.

Ecology is the science of how living creatures and plants exist together and depend on each other and on the local environment. When an environment is undisturbed, the ecology of an area is in balance, but if a creature is exterminated or an unfriendly species introduced, then the ecology of the district will upset—in other words, the balance of nature will be disturbed.

Man is a part of the environment and has done more to upset the ecology during his short span on earth than any other living creature. He has done this by his ignorance, his greed, his thoughtless foolishness and wastefulness.

He had poisoned the atmosphere and polluted both land and water. He has squandered the earth's natural resources with no thought for the future, and has thought out the most savage ways of killing his fellow men—and every other sort of life at the same time.

Since man has done so much damage, it is up to him to try to put matters right—if it is not already too late. If there is to be any remedy for our ills, that remedy ultimately lies in the hands of the young, and the sooner they start doing something about it, the better.

One of the main causes of the earth's troubles is that the world is overpopulated and that this overpopulation is growing at an ever increasing rate. At the same time we are using up our natural resources—fuels and mineral ores—at an ever increasing rate with no hope of replacing them.

For many years the earth has been unable to provide enough food for these rapidly expanding populations and the position is steadily worsening since the fertility of some of our richest soils has been lost and vast areas that were once fertile lands have turned into barren deserts. And the trouble with deserts is that they tend to creep outwards on to the fertile soils. What is now the northern Sahara Desert was the cradle of the civilized world 2,500 years ago.

Even at this moment many of the earth's natural treasures are being destroyed. Many valuable animals and plants are being killed off, and it is becoming increasingly difficult to grow enough food to preserve much of the earth's population from starvation. The situation is getting out of hand. Time is running out. But with your help, we may be able to reserve the trends which threaten our very existence.

The main purpose of this passage is to

A．inform. people about the science of ecology.

B．urge people to do something about the environment.

C．criticize some actions of human beings.

D．help us understand the world we live in.

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第11题

For me, scientific knowledge is divided into mathematical sciences, natural sciences or sc

iences dealing with natural world, and sciences dealing with mankind. Apart from these sciences is philosophy. All this is pure or【C1】______ knowledge, sought only for the【C2】______ of understanding in order to fulfill the need to understand what is intrinsic and consubstantial (同质的) to man. What【C3】______ man from animal is that he knows and needs to know. If man did not know that the world existed, and that the【C4】______ was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn't be man. The technical aspects or applications of knowledge are equally necessary for man and are of the greatest importance,【C5】______ they also contribute to【C6】______ him as man and permit him to 【C7】______ a life increasingly more truly human.

【C8】______ even while enjoying the results of technical progress,【C9】______ must defend the primacy and autonomy of our knowledge. Knowledge sought【C10】______ for its practical applications will have immediate and【C11】______ success, but not the kind of important result【C12】______ revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a well-known example. If the Greek mathematicians had not applied themselves【C13】______ investigation of conic (二次曲线) sections zealously and without the least suspicion【C14】______ it might someday be useful, it would not have been possible【C15】______ later to navigate far from shore. The first man to study the nature of electricity could not imagine that their experiments, carried on because of mere【C16】______ curiosity, would eventually lead to modern electrical technology, without which we can scarcely【C17】______ of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot【C18】______ itself to ignorance. But,【C19】______ it is the foundation for practical results that would not have been reached if this knowledge had not been sought【C20】______ .

【C1】

A．applicable

B．feasible

C．practical

D．theoretical

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