So far great effort has ________ to develop a new type of personal computer.
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科目：高中英语 来源： 题型：单选题
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科目：高中英语 来源： 题型：阅读理解
The twentieth century saw greater changes than any century before: changes for the better,
changes for the worse; changes that brought a lot of benefits to human beings, changes that put man in danger. Many things caused the changes, but, in my opinion, the most important was the progress in science.
Scientific research in physics and biology has vastly broadened our views. It has given us a deeper knowledge of the structure of matter and of the universe; it has brought us a better understanding of the nature of life and of its continuous development. Technology m the application of science m has made big advances that have benefited us in nearly every part of life.
The continuation of such activities in the twenty-first century will result in even greater advantages to human beings: in pure science -- a wider and deeper knowledge in all fields of learning; in applied science -- a more reasonable sharing of material benefits, and better protection of the environment.
Sadly, however, there is another side to the picture. The creativity of science has been employed in doing damage to mankind. The application of science and technology to the development and production of weapons of mass destruction has created a real danger to the continued existence of the human race on this planet. We have seen this happen in the case of nuclear weapons, Although their actual use has so far occurred only in the Second World War, the number of nuclear weapons that were produced and made ready for use was so large that if the weapons had actually been used, the result could have been the ruin of the human race, as well as of many kinds of animals.
William Shakespeare said, “The web of our life is of a mingled yarn (纱线), good and ill together.” The above brief review of the application of only one part of human activities----- science seems to prove what Shakespeare said. But does it have to be so? Must the ill always go together with the good? Are we biologically programmed for war?
Which of the following best shows the structure of the passage?
A. B. C. D.
From the fourth paragraph, we can infer that________.
A. a great many nuclear weapons were actually used for war
B. a large number of nuclear weapons should have been used for war
C. the author is doubtful about the ruin of human beings by nuclear weapons
D. the author is anxious about the huge number of nuclear weapons on the earth
The underlined word "mingled" in the last paragraph most probably means________.
A. simple B. mixed C. sad D. happy
What do you think the author is most likely to suggest if he continues to write?
A. Further application of science to war.
B. More reading of William Shakespeare.
C. Proper use of science in the new century.
D. Effective ways to separate the good from the ill.
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科目：高中英语 来源： 题型：阅读理解
All too often , a choice that seems sustainable（可持续的）turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol（乙醇）for fuel from corn . Corn is a renewable resource —you can harvest it and grow more, almost limitlessly. So replacing gas with corn ethanol seems like a great idea.
One might get a bit more energy out of the ethanol than that used to make it, which could still make ethanol more sustainable than gas generally, but that’s not the end of the problem. Using corn to make ethanol means less corn is left to feed animals and people, which drives up the cost of food. That result leads to turning the fallow land — including, in some cases, rain forest in places such as Brazil — into farmland, which in turn gives off lots of carbon dioxide（CO2）into the air. Finally, over many years, the energy benefit from burning ethanol would make up for the forest loss. But by then, climate change would have progressed so far that it might not help.
You cannot really declare any practice “sustainable” until you have done a complete lift-cycle analysis of its environmental（环境的）costs. Even then, technology and public policy keep developing, and that development can lead to unforeseen and undesired results. The admirable goal of living sustainable requires plenty of thought on an ongoing basis.
What might directly cause the loss of the forest according to the text?
A. The growing demand for energy to make ethanol.
B. The increasing carbon dioxide in the air.
C. The greater need for farmland.
D. The big change in weather.
The underline word “it” in the second paragraph refers to
A. the energy benefit B. the forest loss
C. climate change D. burning ethanol
The author thinks that replacing gas with corn ethanol is
A. impractical B. acceptable C. admirable D. useless
What does the author mainly discuss in the text?
A. Technology. B. Sustainability.
C. Ethanol energy. D. Environmental protection.
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科目：高中英语 来源： 题型：阅读理解
Time magazine named Russian President Vladimir Putin its "Person of the Year" for 2007 on Wednesday, saying he had returned his country from chaos（混乱）to "the table of world power" though at a cost of democratic principles.
He doesn't care about civil liberties; he doesn't care about free speech; he cares about stability. But Putin, 55, is enormously popular in Russia, presiding over a resurgent economy based on income from oil and natural gas. On the other hand, stability is what Russia needed and that's why Russians adore（爱戴）him.
Time magazine said on its Web site that Putin, the son of a factory worker had led Russia with persistence, a sharp vision and a sense that he showed the spirit of "Mother Russia".
The selection came days after Putin announced a plan to hold onto power after his term ends next year. Putin said on Monday that if his close ally(盟友），Dmitry Medvedev, won the presidency, he would serve as Medvedev’s prime minister. "Putin has put his country back on the map. And he intends to redraw it himself,"Time said. "He will continue to lead his country as its prime minister and attempt to transform it into a new kind of nation, beholden to neither East nor West."
Time said the person of the year distinction, which it has awarded since 1927, is not an endorsement（支持）or a popularity prize but a recognition of the individuals and forces that shape the world. "At significant cost of, the principles and ideas that free nations prize, (Putin) has performed an extraordinary feat of leadership in placing stability on a nation that has rarely known it and brought Russia back to the table of world power. For that reason, Vladimir Putin is Time's 2007 Person of the Year," the magazine said.
Time had earlier selected four other Kremlin leaders for the distinction: Stalin, who was chosen twice, Nikita Khrushchev, Yuri Andropov and Mikhail Gorbachev.
What does the underlined word "feat" in Para 5 probably mean?
A. Style. B. Level. C. Standard. D. Achievement.
What's the major reason why Putin becomes popular in Russia?
A. His successful economy policy
B. His outstanding ability of politics
C. His great contributions to Russian economy and social stability.
D. His wisdom of changing the world.
What may be the best title of the passage?
A. Putin－Time magazine’s person of the year 2007
B. Putin－a world power leader
C. Putin－a beloved Russian president
D. Putin－an honorable Russian president
What can we inter from the passage?
A. Russia, including the former Soviet Union, has been one of the major countries named person of the Year so far.
B. Only an individual can be named Person of the Year nowadays.
C. Putin played an important role in Russian social and economic troubles.
D. Medvedev will certainly be elected Russian President on March 3.
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