如何描述一个本国的河流？

描述一个本国的河流。看到这道题目，虽然有的烤鸭可能一下子可以想到我们国家的几条重要的河流，但是对于下面这些问题毫无头绪。

·河流的特点该如何描述？

·河流的流域怎么说？

该话题参考文本

I’d like to talk about our Mother River in China--The yellow river. Originating in Western China, the yellow river, at an estimated length of more than 5000 km, flows through several areas and empties into the Bohai sea near Shandong province. Thus its drainage area covers nearly half of China. The yellow river, by and large, is notable for carrying a large amount of silt every year into the sea.

Being the sixth longest river in the world, the yellow river enjoys the fame of nurturing generations of Chinese people. However, it has been responsible for several floods and some have even been catastrophic. So in modern time, people dare not to make light of its severity and sophisticated dams are then built. Nowadays, the yellow river is easier to be tamed.

该话题关键词
1.       empty into流入

2.       drainage area流域

3.       by and large 从总体上看

4.       make light of轻视

5.       tame 驯服，控制