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Parks and similar recreation areas act as a kind of barrier between residential and industrial areas. The government is making efforts to preserve this “Green Belt” to halt the spread of industrial growth and excessive suburban "sprawl" into the surrounding countryside. Planning permission to build a new factory complex or housing estate is often refused for this reason.
People nowadays have become very conscious of the threat which modern living poses to our natural environment. They are becoming concerned about the quality of present-day life and are giving vigorous support to conservation policies which aim to safeguard the countryside that is still untouched, and to clean and restore what has already been spoiled. This involves clearing town centers of all motor traffic with its polluting fumes and gases, preventing agricultural land from being sold to unscrupulous property developers, and launching a powerful campaign against the serious chemical pollution of many of our rivers, lakes and coastal waters. There is even some talk about making our elaborate canal system viable again for the transportation of goods such as coal, which would then lessen the amount of heavy traffic on our already overloaded roads.
Neither is it all empty talk; for the first time in decades fish are being caught in the lower reaches of the Thames. For the conservationists this represents a real victory and gives them well-deserved satisfaction.
1.Motor traffic is banned from many town centers because (  ).
2.The "Green Belt" in line 2 refers to (  ).  
3.The fact that fishes are now being caught in the lower reaches of the Thames shows that (  ).  
4.What threat does modern living pose to our natural environment?
5.The campaign against serious pollution of rivers was launched because(  ).  
6.According to the passage, in what other way can the canal system be used?

问题1选项
A.there is too much traffic already
B.it contaminates the air with fumes and gases
C.the smell of the fumes and gases is terrible
D.it is noisy and dangerous
问题2选项
A.the surrounding countryside
B.the trees planted along the city roads
C.recreational areas
D.industrial areas
问题3选项
A.the campaign to clean up rivers has brought about a change in the natural environment
B.the government has no interest in clearing up the middle and upper reaches of the river
C.the rest of the river is still polluted
D.there is no fish in the middle and upper reaches of the river
问题4选项
A.The rising cost of living.
B.The excessive growth of suburban areas.
C.The rapid expansion of industry.
D.The deterioration of the quality of life.
问题5选项
A.the government wanted to preserve the cleanliness of the rivers
B.the government wanted to raise fish in the rivers
C.the government wanted to lessen the traffic burdens on the road
D.the government wanted to safeguard the countryside
问题6选项
A.As a fishing pond.
B.As a boating center.
C.As a means to carry goods.
D.As a recreational area
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