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 |
D
【解析】略
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With fifteen years Britain and other nations should be well on with the building of big industrial plants for the recycling of waste. The word rubbish could lose its meaning because everything which goes into the dustbin would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy of nothing else.
The latest project is to take a city of around half a million citizens and discover exactly what raw (未經(jīng)加工的) 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 rubber as well.
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 treated 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 (元素) from the heavy solids; after that rollers will break up everything that can be broken. Finally, the rubbish will pass under magnets (磁鐵), which will remove the bits of iron and steel; the rubber and plastic will then be sorted out in the final step.
The first full-scale (全方位的) big recycling plants are perhaps fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dustbins, some big cities will be forced to build their own recycling plants before long.
The underlined phrase “be well on with…” most probably means __ .
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Paragraph 3?
A. Breaking up whatever is breakable.
B. Sharpening metal bars.
C. Separating light elements from the heavy ones.
D. Sorting out small pieces of metal.
What’s the main reason for big cities to build their own recycling plants?
A. To deal with wastes more economically.
B. To protect the environment from pollution.
C. To get raw materials locally.
D. To get advantage from those plants.
The passage is mainly about .
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Bedazzling (眼花繚亂) with their bright colors and eye-catching displays, fireworks light up our night skies during the holidays. However, these crowd-pleasers can have some damaging side effects.
Once a firework is set off, it only takes a couple of seconds before smoke, dust and harmful chemicals are let out into the atmosphere. The loud booming noises are caused by gunpowder. While the sounds may excite some people, they can be frightening to domestic and wild animals — as well as some humans.
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A. Copper compounds are needed to make green in fireworks.
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C. Too much gases from fireworks can result in acid rain.
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A. It is not allowed to set off fireworks except during the holidays.
B. Fireworks should be banned and replaced by some other means.
C. Night is the best time to set off fireworks and see the pretty colors.
D. You cannot set off fireworks unless you come up with new ways.
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265. Solids can usually be turned into liquids and liquids into gases if we _____ their temperatures high enough.
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265. Solids can usually be turned into liquids and liquids into gases if we _____ their temperatures high enough.
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