四六级考试

【单选题】Interest is steadily spreading from a minority of enthusiasts in developing renewable sources of energy--wind, wave and solar power, tidal and geothermal energy.Additional support for them has come with a proposal to explore the untapped sources of hydroelectric power in ScotlanD、
The details are presented by Mr. William Manser in a study called "TheCase for an Inquiry into Hydroelectric Generation in the North of Scotland". He calls for an expert committee to look at the developments possible for hydroelectric sites and, more important, for means of financing them
There is a clear industrial connection in Mr. Manser’s study because it was done for the Federation ofCivilEngineeringContractors; hydroelectric schemes, by definition, have a large civil engineering component in them. Mr. Manser estimates that wind power could theoretically provide more than 7 percent of electricity supply in the United Kingdom if suitable sites for generators could be founD、However, the practical supply of wind power generation is not likely to be understood until 1990.
The best developed and most suitable form of renewable energy is in his view, hydropower. The technology has been developed over centuries and is still progressing.At present it is the cheapest form of electricity generation.
Mr. Manser examined past surveys of the north of Scotland and identified several as suitable for hydroelectric generation. Those are in the remote areas, usually of great natural beauty.
But Mr. Manser says a well-designed dam can be impressive in itself. It is also possible to make installations possible, to the point of burying parts of them. Hydro generation involves no water pollution, or smoke creation.
The main trouble, it appears from his report, is financing an undertaking which has a heavy initial capital cost, and very low running cost.
However, Mr. Manser does not see that as an unfamiliar position for the electricity industry. He cites the proposed construction of the new nuclear power station at Sizewell in Suffolk, which will have a high initial capital cost.
The argument at Sizewell that the reason for the expenditure is that the capital will provide a benefit in lower costs and higher returns in the long term, applies equally to hydroelectric generation.
Installations may be buried underground so as to ______

A、reduce water pollution or smoke creationB、preserve the natural beauty of the area
C、make the dam more impressive in itselfD、save running cost as much as possible
网考网参考答案：B
网考网解析：
第5段最后一句提到水力发电的选址通常风景秀丽，而第6段开头的But表明该段提到的做法不会损害当地的美丽风光，由此可见，将发电设备置于地下也是为了不损害当地的风光，因此，B为本题答案。A是第6段最后一句的内容，C是第6段第1句的内容，与题干提到的内容是并列的，不构成因果关系，因此这两项都不正确；D在原文并未提及。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>