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[主观题]

Many theories about the origin of the ocean have been proposed by scientists. The most wid

ely accepted one is that the earth at some time in its very early history became hot enough to melt the materials from which it was formed. While in this molten state, lighter rock-forming materials (造岩材料) floated on the surface of the heavier ones. Then, between four and a half four billion (十亿) years ago, the molten earth cooled sufficiently to form. a crust of rock that was many miles thick.

Surrounding the earth was an unbroken canopy of clouds miles thick and made up mostly of water vapor. Rain falling toward the still-hot earth was heated to steam and rose to the clouds again. After many millions of years, as the earth continued to cool, its surface temperature fell below the boiling point of water. Rainwater could now remain on the earth, covering its whole surface except for the higher places on earth that had been formed from the lighter rock materials.

In 1970, scientists had pieced together evidence that the lighter rock materials had formed one huge continent by a vast ocean. Then, about 200 million years ago, the great continent began to break up, the pieces moving slowly apart.

The onrushing waters of the single huge ocean now entered and filled the spaces between the separating continents--and became the several oceans and seas we know today.

This passage mainly talks about ______.

A.the origin of the earth

B.the origin of the ocean

C.the history of the earth

D.the forming of the earth's crust

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更多“Many theories about the origin of the ocean have been proposed by scientists. The most wid”相关的问题

第1题

All that we really need to plot out the future of our universe are a few good measurements
. This does not mean that we can sit down today and outline the future course of the universe with anything like certainty. There are still too many things we do not know about the way the universe is put together. But we do know exactly what information we need to fill in our knowledge, and we have a pretty good idea of how to go about getting it.

Perhaps the best way to think of our present situation is to imagine a train coming into a switchyard. All of the switches are set before the train arrives, so that its path is completely determined. Some switches we can see, others we can not. There is no ambiguity if we can see the setting of a switch: we can say with confidence that some possible futures will not materialize and others will. At the unseen switches, however, there is no such certainty. We know the train will take one of the tracks leading out, but we have no idea which one. The unseen switches are the true decision points in the future, and what happens when we arrive at them determines the entire subsequent course of events.

When we think about the future of the universe, we can see our "track" many billions of years into the future, but after that there are decision points to be dealt with and possible fates to consider. The goal of science is to reduce the ambiguity at the decision points and find the true road that will be followed.

According to the passage, it is difficult to be certain about the distant future of the universe because we ______.

A.have too many conflicting theories

B.do not have enough funding to continue our research

C.are not sure how the universe is put together

D.have focused on investigations of the moon and planets

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第2题

What does each of the four behavioral leadership theories say about leadership?
What does each of the four behavioral leadership theories say about leadership?

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第3题

When MRA was shortlisted for a valuable contract for the development of a coastal defence
system for another country, it was contingent on the payment of a facilitation fee to an official in the defence ministry. Clearly this was an unusual request but it was also made very clear that MRA would not be awarded the contract, worth $2 billion over 10 years, unless the relatively modest sum of $1 million was paid immediately.

Recently, business activity in the defence sector had been very slow, and MRA was about to announce around 500 staff redundancies. Therefore news that this contract was about to be awarded came as a great relief to the board of MRA, as the jobs would now be secured. However, only the chief executive officer (CEO) and operations director knew about the facilitation fee, so an emergency meeting of the board was convened with only one item on the agenda.

Due to the very sensitive nature of the matter at hand, it was decided not to make a formal record of the discussions at the board meeting. This was more likely to result in a frank exchange of views and encourage all directors to express their opinions openly.

The CEO, Charlie Desborough, explained the dilemma to the board, making it very clear that without this contract there would be no way to protect jobs. The finance director, Jake Neilson, said that he was personally very uncomfortable with the idea of paying a facilitation fee, which was in effect a ‘bribe’. As a professional accountant he was bound by a code of ethics which strictly prohibited making such payments, therefore he could not sanction the payment under any circumstances.

The HR director, Sarah Shue, took a far more pragmatic stance. She acknowledged that any form. of corruption was utterly deplorable; however, it was a fact of life in many countries. She asserted that if the board of MRA decided not to make the payment and forego the contract, then it could be assured that a competitor would not adopt such a high-minded position. The net effect was that by avoiding a relatively small payment, the firm would be doing a disservice to both its employees and its shareholders, who would undoubtedly suffer a reduction in their shareholder value. She maintained that sometimes it is necessary to take difficult decisions in business that are for the greater good, and so suggested that the payment to the official should be made.

Required:

(a) (i) Compare relativism and absolutism and explain the significance of individual or personal differences in guiding ethical behaviour under each approach in a given scenario such as the situation at MRA. (5 marks)

(ii) Explain the ethical theories of deontology and teleology or consequentialism, and analyse which of the approaches have been adopted by Sarah Shue and Jake Neilson. (6 marks)

The involvement of directors in bribery and corruption can seriously undermine the relationships of trust upon which corporate governance is based.

Required:

(b) (i) Assess how bribery and corruption could undermine confidence and trust in MRA, with reference to the principles of corporate governance. (8 marks)

(ii) Describe best practice measures which could be employed by MRA to combat bribery and corruption. (6 marks)

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第4题

—How many people are there in Changsha?—About six ______.

A.million

B.millions

C.millions of

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第5题

A land free from destruction, plus wealth, natural resources, and labor supply—all these w
ere important factors, in helping England to become the center for the Industrial Revolution.【B1】they were not enough. Something else was needed to start the industrial process. That "something special" was men—【B2】individuals who could invent machines, find new sources of power, and establish business organizations to reshape society.

The men who【B3】the machines of the Industrial Revolution came from many backgrounds and many occupations. Many of them were【B4】inventors than scientists. A man who is a pure scientist is primarily interested in doing his research【B5】. He is not necessarily working so that his findings can be used. An inventor or one interested in applied science is【B6】trying to make something that has a concrete idea. He may try to solve a problem by using the theories【B7】science or by experimenting through trial and error. Regardless of his method, he is working to obtain a specific result: the construction of a harvesting machine, the burning of a light bulb, or one of【B8】other objectives.

Most of the people who developed the machines of the Industrial Revolution were inventors, not trained scientists. A few were both scientists and inventors. Even those who had【B9】or no training in science might not have made their inventions if a groundwork had not been laid by scientists years【B10】.

【B1】

A.But

B.And

C.Besides

D.Even

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第6题

The notice about the English evening ______many students who have interest in English.A.im

The notice about the English evening ______many students who have interest in English.

A.impelled

B.intrigued

C.provoked

D.induced

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第7题

Which of the following statements about résumé headings is correct?A.Use as many heading

Which of the following statements about résumé headings is correct?

A.Use as many headings as you can to provide more information.

B.Keep the résumé as concise as you can and make it easy to follow.

C.Provide as many details as you can within the same heading.

D.Arrange the important headings as close to the end as you can.

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第8题

According to the passage, what do you know about e-business in Britain?A.E-business has el

According to the passage, what do you know about e-business in Britain?

A.E-business has eliminated many competitive rivals.

B.E-business has done many benefits to big companies.

C.Many companies have joined in the E2 business program.

D.E-business has' great potential and will make changes in the country.

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第9题

The building of the first transcontinental system ______.A.brought about a rapid growth of

The building of the first transcontinental system ______.

A.brought about a rapid growth of industry and farming in the west

B.attracted many visitors to the construction sites

C.attracted labourers from Europe

D.encouraged people to travel all over the country

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第10题

As knowledge increased, colleges began to teach______. A. everything that was kn

As knowledge increased, colleges began to teach______.

A. everything that was known

B. law and something about medicine

C. many new subjects

D. the subjects that interested students

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