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【题目】阅读下列材料,回答问题

材料一 我国新世纪的四大工程,在促进西部大开发、资源大调度方面具有重要意义,四大工程如下图所示

材料二 中国经济开始进入增长加速期,经济总量的增长,引发对能源的需求增加,专家认为,未来2——3年,中国电力紧张的状况将是一场必然趋势。浙江、上海是缺电的重点地区。

(1)四大工程的建设有利于我国东西互补、南北相济、资源共享,请写出我国水资源、能源和经济发展水平的地区差异。

水资源分布的南北差异:

能源需求的东西差异:

经济发展水平的东西差异:

(2)四大工程中属于交通设施的工程是 ;此交通线路在2006年7月1日正式通车运行。

(3)我国浙江、江苏、上海所在的地区缺电的主要原因是 (至少两点)

(4)四大工程中对这些地区社会经济发展和环境保护有重要意义的工程是西气东输和

【答案】(1)南多北少

东部供不应求、西部供大于求

东部经济发达、西部经济落后

(2)青藏铁路

(3)能源矿产缺乏,工业发达,人口稠密,能源需求量大

(4)西电东送

【解析】

(1)我国水资源的南北差异是南多北少;能源需求的东西差异是东部供不应求、西部供大于求;经济发展水平的东西差异是东部经济发达、西部经济落后。

(2)四大工程中属于交通设施的工程是青藏铁路,此交通线路在2006年7月1日正式通车运行。

(3)我国浙江、江苏、上海所在的地区缺电的主要原因是能源矿产缺乏,工业发达,人口稠密,能源需求量大。

(4)四大工程中对这些地区社会经济发展和环境保护有重要意义的工程是西气东输和西电东送。

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