2012年6月英语六级真题阅读理解答案解析_大学英语阅读

2012年6月英语六级真题阅读理解答案解析

But what do you do with the gas once youve captured it? One option is to put it to new uses. Dakota Gasification of North Dakota captures CO2 at a plant that converts coal into synthetic natural gas. It then ships the gas 200 miles by pipeline to Canada, where it is pumped underground in oil recovery operations. In the Netherlands, Shell delivers CO2 to farmers who pipe it into their greenhouses, increasing their yield of fruits and vegetables.

However, scientists say that the scale of CO2 emissions will require vast amounts of long-term storage. Some propose storing the CO2 in coal mines or liquid storage in the ocean, Shell favors storing CO2 in deep geological structures such as saline(盐的) formations and exhausted oil and gas fields that exist throughout the world. 。

47. What are suggested as renewable and less-polluting energy alternatives?

48. What does the author say is a forward thinking strategy concerning the reduction of CO2emissions?

49. One way of handing the captured CO2 as suggested by the author is to store it and . 50. Through using CO2, Dutch farmers have been able to .

51. Long-term storage of CO2 is no easy job because of .

Section B

Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer sheet 2 with a single line through the centre. Passage One