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【题目】西气东输主干道路线图,回答下列问题。

1西气东输主干道自西向东经过的自然带分别为( )

亚热带常绿阔叶林带 温带落叶阔叶林带

温带草原带 温带荒漠带

A.①②③④ B.②①③④

C.③④①② D.④③②①

2西气东输工程对东部地区生态环境的有利影响是( )

A.促进东部地区改变能源结构

B.促进东部地区轻重工业的结构调整

C.有效改善大气环境

D.有利于带动东部地区城镇基础设施建设

3西气东输工程主要是为了解决( )

A.东、西部自然资源分布与生产力分布不协调问题

B.东部地区的大气环境污染问题

C.沿线地区的再就业问题

D.西部地区的生态环境脆弱问题

【答案】

【1】D

【2】C

【3】A

【解析】

试题分析:

【1西气东输主干道西端位于塔里木盆地,属于温带荒漠带,那么向东依次为:温带草原带、温热带落叶阔叶林带、亚热带常绿阔叶林带。故选D。

【2】题意表明西气东输工程对生态环境的影响,所以它改善了我国东部地区的能源消费结构,使天然气所占比重上升,煤炭所占的比重下降,所以向大气中排放的污染气体减少,能有效改善大气环境。故选C。

【3】西气东输工程,属于跨区域调配能源主要是为解决自然资源分配不均,社会生产力和消费分布均的问题,西部地区天然气等能源资源丰富,市场消费量少,东部地区能源分布较少,但市场消费量大,所以实施跨区域的能源调配的根本主要是解决能源生产与消费不协调的问题。故答案选A。

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