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【题目】读图,回答问题.

1)秦岭-淮河以南地区的河流数量比北方地区 ______ ,河流径流量 ______ ,这说明我国东部水资源分布具有南方 ______ ,北方 ______ 的特点.

2)在图上画出南水北调工程中东、中、西线路.

3)用字母在图中适当位置标注下列河流名称:

A.辽河、B.珠江、C.塔里木河、D.京杭大运河.

4)我国水资源受季风气候影响,表现出 ______ 分配和 ______ 分布的不均匀性,这不仅制约了 ______ 的可利用性,也给 ______ 带来诸多不便.

【答案】1)多;大;多;少
2)略
3)略
4)季节;空间;水资源;工农业生产和生活

【解析】

南水北调工程分为西线、中线、东线三种调水方案。西线方案是从长江上游的通天河、雅砻江、大渡河引水入黄河,以解决西北地区的缺水问题;中线方案由汉江上游的丹江口水库引水,跨长江、淮河、黄河、海河四大流域,经郑州、石家庄等城市一直流向北京、天津;东线方案是从长江下游扬州附近抽引长江水,沿着京杭大运河苏北段沿京杭运河北上,在山东西部穿过黄河,进入河北再抵达天津。

(1)秦岭-淮河以南地区的河流数量比北方地区多,河流径流量大,我国东部水资源分布具有南方多,北方少的特点;

(2)西线方案是从长江上游的通天河、雅砻江、大渡河引水入黄河,以解决西北地区的缺水问题.中线方案由汉江上游的丹江口水库引水,跨长江、淮河、黄河、海河四大流域,经郑州、石家庄等城市一直流向北京、天津.东线方案是从长江下游扬州附近抽引长江水,沿着京杭大运河苏北段沿京杭运河北上,在山东西部穿过黄河,进入河北再抵达天津;

(3)据我国不同河流的位置标注即可;

(4)我国水资源空间分布的特点是东多西少,南多北少,季节分布特点是夏秋多,冬春少,年际变化大的特点,所以说我国水资源表现出季节分配和空间分布的不均匀性,这不仅制约了水资源的可利用性,也给工农业生产和生活带来诸多不便。

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