(2) Pearl River? Yellow River? Tarim River? Poyang Lake (in Jiangxi Province)

(3)①? ③? ④? ⑦? ⑧? ⑨

(4)②

Test analysis:

(1) The dividing line between monsoon region and non-monsoon region in China is Daxinganling-Yinshan-Helan-Bayankala-Gangdise Mountain; The boundary of flow area at home and abroad is roughly the same as that of monsoon area and non-monsoon area. The outflow area is mainly monsoon area and the inflow area is mainly non-monsoon area.

(2) China is one of the countries with many rivers and lakes in the world. There are more than 600 rivers 1.600, and the drainage area is more than 1 km2. There are about 2,300 natural lakes with an area of 1 km2. The rivers in the north of Qinling-Huaihe line in China freeze in winter, while the rivers in the south do not. Because the terrain is high in the west and low in the east, most of the major rivers in China flow into the Pacific Ocean. The Yarlung Zangbo and Nujiang rivers flow into the Indian Ocean. Most rivers in China are located in the outflow area in the southeast. Due to the influence of summer monsoon, the flood season is formed in summer, and the runoff in flood season accounts for 60%-80% of the annual runoff. You can answer the question by reciting the distribution map of rivers and lakes in China.

(3) With the Qinling Mountains and Huaihe River as the boundary, rivers in the southern region flow through the humid area, with abundant water, long flood season and low sediment concentration, while rivers in the northern region flow through semi-humid or semi-arid areas, with little water and short flood season, and rivers freeze in winter. The middle and upper reaches of Liaohe River, Haihe River and Yellow River have serious soil erosion and high sediment concentration. Saltwater lake refers to a lake with high salt content. The saltwater lakes in China are mainly distributed in the western region, and the number is far more than that of freshwater lakes, accounting for about 55% of the total area of lakes in China. The largest and most famous is Qinghai Lake, which is a lake with low salt content. Freshwater lakes in China are mainly distributed in the middle and lower reaches of the Yangtze River, the lower reaches of the Huaihe River and southern Shandong, accounting for about one third of the total area of lakes in China. Five freshwater lakes in China.

(4) Qinling Mountains and Huaihe River are the dividing lines between the north and the south in eastern China. Due to the influence of the high Qinling Mountains, the climate in the south and north of China is obviously different. In northern winter, when the temperature is below 0℃, rivers will generally freeze, while in southern winter, when the temperature is above 0℃, rivers will not freeze. Therefore, Qinling Mountains and Huaihe River became the dividing line between glacial and non-glacial periods.