| 阅读理解 Within fifteen years Britain and other nations should be well on with the building of huge industrial complexes 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 unpleasant 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 many 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 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 processed like this:first, it will pass through 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 rubbish and plastic will then be sorted out in the final stage. The first fullscale giant recycling plants are perhaps fifteen years away.Indeed, with the growing cost of transporting 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 to ________. A. show us a future way of recycling wastes B. tell the importance of recycling plant C. warn people the danger of some wastes D. introduce a new recycling plant 2. How many stages are there in the recydling process? A. 3 B. 4 C. 5 D. 6 3. What's the main reason for big cities to build their own recycling plants? A. To deal with waste in a better way. B. It's a good way to gain profits. C. It's more economical (经济的) than to dump wastes in more distant places. D. Energy can be got at a low price. 4. The first fullscale huge recycling plants________. A. have been in existence for 15 years B. take 15 years to build C. can't be built until 15 years later D. will remain functioning for 15 years |