Solids can usually be turned into liquids and liquids into gases if we their temperatures high enough. A. rise B. go up C. increase D. Raise 题目和参考答案——青夏教育精英家教网—

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265. Solids can usually be turned into liquids and liquids into gases if we _____ their temperatures high enough.

A. rise B. go up C. increase D. Raise

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Within fifteen years Britain and other nations should be well on with the building of huge industrial complexes (结合)for the recycling of waste. The word "rubbish" could lose its meaning because everything that goes into the dumps would be made into something useful. Even the most dangerous and un??pleasant wastes would provide energy if nothing else.

The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what go out. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rub??ber.

Another new project is being set up to discover the best ways of sorting and separating the rubbish. When this project is complete, the rubbish will be processed like this: first, it will pass through sharp metal bars which will tear open the plastic bags in which rubbish is usually packed; then it will pass through a powerful fan to separate the lightest elements from the heavy solids; after that grounders and rollers break up everything that can be broken. Finally the rubbish will pass under magnets, which will remove the bits of iron and steel; the rubber and plastic will then be sorted out in the fi??nal stage.

The first full-scale giant recycling plants are, perhaps, fifteen years away. Indeed, with the growing cost of transpor??ting rubbish to more distant dumps, some big cities will be forced to build their own recycling plants before long.

1. The main purpose of the passage is ________.

A. to show us a future way of recycling wastes B. to tell the importance of recycling wastes

C. to warn people the danger of some wastes D. to introduce a new recycling plant

2. How many stages are there in the recycling process?

A. 3. B. 4. C. 5. D. 6.

3. What is the main reason for big cities to build their own re??cycling plants?

A. To deal with wastes in a better way. B. It’s a good way to gain profits.

C. It’s more economical than to dump wastes in some dis??tant places.

D. Energy can be got at a lower price.

4. The first full-scale huge recycling plants ________.

A. have been in existence for 15 years B. takes 15 years to build

C. can’t be built until 15 years later D. will remain functioning for 15 years

Could the solution to world future energy needs lie in the ocean? It’s possible.

We are not talking about oil, but another potential untapped energy resource called “methane hydrates”.

Methane hydrates are hard, ice-like white solids that form naturally in deposits (沉积物) on ocean floors. They arecomposed of water and highly concentrated methane produced by the microorganisms living in the deposits.

The remarkable thing is that you can hold a flame to a piece of methane hydrate and it will catch on fire. It’s been called “burning ice.”

Methane hydrates are spread around the world. These deposits may in the future become a very important fuel resource. One researcher calculated that a small area off the Southeastern coast of America may contain methane hydrates equal to 30 times the annual U.S. consumption of natural gas.

Right now there are very significant technical and financial challenges facing us before we could exploit this as a resource. Scientists around the world are studying these challenges. One big issue is how to get these methane hydrates off the ocean floor, causing undersea landslides and tidal waves.

Another issue is how to handle the matter after it is brought up. It’s also unclear whether it would make more sense to “mine” solid hydrates or tap the gases found with them. And many deposits may occur in low concentrations with no commercial potential.

Japan, which has no oil supplies of its own, has thrown itself into burning ice research because it has deposits off its shores which could make Japan less dependent on foreign suppliers of oil.

The U.S. Department of Energy and Congress are also supporting research. However, the US administration’s energy policy is focused on traditional fossil (化石) fuels. And at least for now, developing burning ice into a fuel source isn’t high on the energy industry’s list. But if natural gas continues to rise in price, exploiting burning ice might become economically practical.

59. What’s the meaning of the underlined word in Paragraph Two?

A. not existed B. Unseen C. available but not used D. unreal

60. What can you learn from the text?

A. Burning ice has been used in some countries.

B. Applying burning ice tops the energy list in America.

C. Burning ice exists in few countries.

D. There are still some problems in developing the burning ice

61. Why has Japan already begun to develop the burning ice?

A. It is a developed country. B. They want to help other countries.

C. It lacks oil supplies of its own. D. America asked Japan to do so.

62. Which one is the best title of the text?

A. World Energy Shortage B. Burning Ice Holds Hope as Fuel Source