题目内容（请给出正确答案）

[主观题]

Space is filled with radiant energy and beyond earth's atmosphere this energy flow steadil

y and intensely from the sun. An abundant and essential【C1】______of energy would be used in space by developing satellite solar【C2】______stations. To live in space, humans must be protected【C3】______the fierce intensity and penetrating sunlight. The colony will have to have enough energy to【C4】______a fairly uniform. temperature. The sun is not dimmed【C5】______an atmosphere. Shaded materials not【C6】______to direct sunlight will almost be absolute zero, while the temperature can soar above the【C7】______point. The colony will need to have both heaters and【C8】______Fortunately, sun's energy can be converted【C9】______electricity. Converting sun's energy, we would【C10】______stations in the space that would intercept【C11】______sunlight. The stations intercept enough sunlight to【C12】______five nuclear reactors and they could be as【C13】______as nine miles long and four miles wide while they weigh twenty thousand tons. This is a【C14】______free way to generate electricity and cost no【C15】______than coal or nuclear energy. Solar cells do the actual converting. A useful material found in lunar soil is silicon which is used to make solar cells.【C16】______we can produce a large amount of these cells and then we avoid any problems of【C17】______the material from earth. A solar cell is made from two thin layers of silicon. Sunlight【C18】______on the cell shakes the electrons【C19】______, and then these electrons move off into an outside circuit, which is detected as an electrical current. Things are arranged【C20】______most of the work involved in generating the electricity is done by forces associated with the atoms themselves.

【C1】

A．treasure

B．property

C．resource

D．source

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更多“Space is filled with radiant e…”相关的问题

第1题

They filled every inch of space by ()(plant) early-ripening crops with late-ripening c

They filled every inch of space by （)（plant) early-ripening crops with late-ripening c

rops.

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第2题

You are using the flash recovery area （fast recovery area in 11g Release 2) to store backu

You are using the flash recovery area (fast recovery area in 11g Release 2) to store backup related files in your database. After regular monitoring of space usage in the Mash recovery area. You realize that the flash recovery area is jetting filled up very fast and it is running out of space. Your database flash recovery area is low on space and you have no more room on disk.Proactively, which two options could you use to make more space available in the flash recovery？（）

A. Change the RMAN archived log deletion policy

B. Use the RMAN CROSSCHECK command to reclaim the archived log space

C. Change the RMAN retention policy to retain backups for a shorter period of time

D. Use OS command to move files from the flash recovery area to some other location

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第3题

The difference between a liquid and a gas is obvious【46】______the conditions of temperatur

e and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fills it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available; it must【47】______be kept in a closed container, as in the【48】______of a planet' s atmosphere. The distinction was a prominent feature of early theories【49】______(describe) the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are made up of different kinds of molecules (分子). The theories now prevailing【50】 t______a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter【51】______have no permanent structure , and they both flow easily. They are fluids.

The【52】______(fundament) similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. Suppose a closed container partially filled with a liquid is heated. The liquid expands, or in other【53】______, becomes less dense; some of it evaporates. In contrast, the vapor above the liquid surface becomes dense as the evaporated molecules are added to it. The combination of temperature and pressure【54】______ which the densities become equal is called the critical point. Above the critical point the liquid and the gas can no longer be【55】______(distinguish) ; there is a single, undifferentiated fluid phase of uniform. density.

(35)

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第4题

Passage ThreeQuestions 31 to 35 are based on the following passage. In the late 1960's man

Passage Three

Questions 31 to 35 are based on the following passage.

In the late 1960's many people in North America turned their attention to environmental problems，and new steel-and-glass skyscrapers(摩天楼)were widely criticized. Scientists pointed out that blocks of tall buildings in a city often overburdens. public transportation and parking lot capacities.

Skyscrapers are also big consumers，and wasters，of electric power. In one recent year. the addition of 17 million square feet of skyscraper office space in New York City raised the peak daily demand for electricity by 120，000 kilowatts-enough to supply the entire city of Albany，New York，for a day.

Glass-walled skyscrapers can be especially wasteful. The heat loss(or gain)through a wall of half-inch plate glass is more than ten times that through a typical brick wall filled with insulation board. To lessen the strain on heating and air-conditioning equipment，builders of skyscrapers have begun to use double-glazed(装上玻璃的)panels of glass，and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However. mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.

Skyscrapers put a severe strain on a city's sanitation(卫生)facilities，too. If fully occupied, the two World Trade Center towers in New York City would alone generate 2.25 million gallons of raw wastes each year-as much as a city the size of Stamford，Connecticut，which has a population of more than 109，000.

Skyscrapers also interfere with television reception，block bird flyways，and obstruct air traffic. In Boston in the late 1960's，some people even feared that shadows from skyscrapers would kill the grass on Boston Common.

Still，people continue to build skyscrapers for all the reasons that they have always built them-personal ambition(抱负)pride，and the desire of owners to have the largest possible amount of rentable space.

The main purpose of the passage is to______.

A. compare skyscrapers with other modem structures

B. describe skyscrapers and their effect on the environment

C. advocate the use of masonry(化妆舞会)in the construction of skyscrapers

D. illustrate some architectural designs of skyscrapers

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第5题

No matter how many times you have seen images of the golden mask of boyking Tutankhamen, c

ome face to face with it in Egypts Cairo museum, and you will suck in your breath. It was on Nov. 4, 1923, that British archaeologist Howard Carter stumbled on a stone at the base of the tomb of another pharaoh(法老)in Luxor that eventually led to a sealed doorway. Then, on Nov. 23, Carter found a second door and when he stuck his head through it, what he saw was to suck the world. Inside lay the great stone coffin, enclosing three chests of gilded wood. A few months later, when a crane lifted its granite cover and one coffin after another was removed; Carter found a solid block of gold weighing 110kg. In it was the mummy(木乃伊)of the 19-year-old Tutankhamen, covered in gold with that splendid funeral mask. And all this lay buried for more than 3, 000 years. Months after my trip to Egypt, I can relive the rush of emotion I felt and sense the hush that descended on the crammed Cairo museums Tutankhamen gallery. Cairo, a dusty city of 20 million people, is a place where time seems to both stand still and rush into utter chaos. It is a place where the ancient and contemporary happily go along on parallel tracks. Take the Great Pyramids of Giza, sitting on the western edge of the city. Even as the setting sun silhouettes these gigantic structures against the great desert expanse, a call for prayer floats over semifinished apartment blocks filled with the activity of city life. While careful planning for the afterlife may lie buried underground in Cairo, it is noise and confusion on the streets. Donkey carts battle for space with pedestrians and the only operative road rule is " might is right. " But it is a city that is full of life—from the small roadside restaurants to the coffee shops where men and women smoke the shisha(水烟壶). Donkey carts piled high with flat-breads magically find their way in and out the maddening traffic; young women in long skirts and headscarves hold hands with young men in open collar shirts, while conversations dwell on Kuwaits chances at the soccer World Cup.

According to the context, "suck in your breath" means "feel a sense of______".

A．awe

B．horror

C．doubt

D．delight

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第6题

Many objects in daily use have clearly been influenced by science, but their forms and fun

ctions, their dimensions and appearances, were determined by technologists, artisans, designers, inventors, and engineers using nonscientific modes of thought. Many features and qualities of the objects that a technologist thinks about cannot be reduced to unambiguous verbal descriptions; they are dealt with in the mind by a visual, nonverbal process. In the development of Western technology, it has been nonverbal thinking, by and large, that has fixed the outlines and filled in the details of our material surroundings. Pyramids, cathedrals, and rockets exist not because of geometry or thermodynamics, but because they were first a picture in the minds of those who built them.

The creative shaping process of a technologist's mind can be seen in nearly every artifact that exists. For example, in designing a diesel engine, a technologist might impress individual ways of nonverbal thinking on the machine by continually using an intuitive sense of rightness and fitness. What would be the shape of the combustion chamber？ Where the valves should be placed？ Should it have a long or short piston？ Such questions have a range of answers that are supplied by experience, by physical requirements, by limitations of available space, and not least by a sense of form. Some decisions, such as wall thickness and pin diameter, may depend on scientific calculations, but the nonscientific component of design remains primary.

Design courses, then should be an essential element in engineering curricula. Nonverbal thinking, a central mechanism in engineering design, involves perceptions, the stock-in-trade of the artist, not the scientist. Because perceptive processes are not assumed to entail "hard thinking", non- verbal thought is sometimes seen as a primitive stage in the development of cognitive processes and inferior to verbal or mathematical thought. But it is paradoxical that when the staff of the Historic American Engineering Record wished to have drawings made of machines and isometric views of industrial processes for its historical record of American engineering, the only college students with the requisite abilities were not engineering students, but rather students attending architectural schools.

If courses in design, which in a strongly analytical engineering curriculum provide the back- ground required for practical problem-solving, are not provided, we can expect to encounter silly but costly errors occurring in advanced engineering systems. For example, early models of high-speed railroad cars loaded with sophisticated controls were unable to operate in a snowstorm because a fan sucked snow into the electrical system. Absurd random failures that plague automatic control systems are not merely trivial aberrations; they are a reflection of the chaos that results when design is assumed to be primarily a problem in mathematics.

The author write this passage mainly to______.

A．introduce a new idea.

B．stress the importance of nonverbal thinking.

C．criticize the education for omitting an important part of knowledge.

D．propose a suggestion.

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第7题

Any application form ______ properly will not be accepted by the company. A．not to be filled

A.A.not to be filled

B.B.not filled

C.C.not being filled

D.D.not having been filled

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第8题

The sails ______ themselves with wind.

A、were filled

B、had been filled

C、filled

D、would be filled

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第9题

The park was filled with people （) on their cell phones.

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第10题

5. The hall ______ young people watching the performance.A、fill inB、was filled withC、fi

A.fill in

B.was filled with

C.fill with

D.was filled in

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