Traditional Culture Encyclopedia - Weather forecast - What to read in 8th grade Geography? Climate, terrain, what else?

What to read in 8th grade Geography? Climate, terrain, what else?

Geography of 8th grade

Chapter 1 has a vast territory 1. From the eastern and western hemispheres, she is located in the eastern hemisphere, and from the northern hemisphere, she is located in the northern hemisphere.

Judging from the location of the mainland and the ocean, she is located on the west coast of the Pacific Ocean in eastern Asia.

3. From the latitude position, most of them are located in the mid-latitude area, belonging to the north temperate zone, and a few in the south are located in the tropics, with no frigid zone.

China has a land area of about 9.6 million square kilometers, ranking third in the world, next only to Russian and Canadian.

5. China has a land border of more than 20,000 kilometers, with 14 neighboring countries.

6. The coastline of Chinese mainland is over18,000 kilometers, and there are six countries across the sea from China: Japan, South Korea, Philippines, Brunei, Malaysia and Indonesia.

7. From north to south, the endangered seas in China are Bohai Sea, Yellow Sea, East China Sea and South China Sea.

8. There are Yanchang Yantian, the largest Yantian in China, in the Bohai Sea, and Zhoushan Fishing Ground, the largest fishing ground in China, in the East China Sea.

9. The administrative regions of the country are basically divided into three levels: province, county and township.

10, China has 34 provincial administrative regions, including 23 provinces, 5 autonomous regions, 4 municipalities directly under the central government and 2 special administrative regions.

1 1, the total population of China is129.5 billion, which is characterized by a large population base and rapid population growth.

12, in order to make population growth adapt to social and economic development and resources and environmental conditions, the Chinese government regards the implementation of family planning as a basic national policy.

13, the population distribution in China is uneven, and the population density in the eastern region is high, especially in the southeast coast; The population density in the western region is small.

14, the population dividing line of China is from Heihe City, Heilongjiang Province to Tengchong City, Yunnan Province.

15, the most populous province in China and the largest Xinjiang province.

16. Among the 56 ethnic groups in China, the Han nationality has the largest population and the Zhuang nationality has the largest population.

17, Han nationality is distributed all over the country, most concentrated in the east and middle, and ethnic minorities are mainly distributed in the southwest, northwest and northeast. 18 residential distribution has the characteristics of large mixed residence and small settlement.

20. China implements regional ethnic autonomy in areas where ethnic minorities live in compact communities, and establishes organs of self-government, autonomous regions, autonomous prefectures, autonomous counties and ethnic townships. Chapter II Natural Environment of China

2 1. The topography of western China is dominated by mountains, plateaus and basins, while the eastern part is dominated by plains and hills. Topographic features: high in the west and low in the east, with a three-stage distribution.

22. The first step The Qinghai-Tibet Plateau is located in the southwest, with an average elevation of more than 4,000 meters, which is called the roof of the world.

23. The dividing line between the first and second steps is Kunlun Mountain, Qilian Mountain and Hengduan Mountain; The dividing line between the second and third steps is Daxing 'anling, Taihang Mountain, Wushan Mountain and Xuefeng Mountain.

24. The four plateaus are: Loess Plateau, Inner Mongolia Plateau, Qinghai-Tibet Plateau and Yunnan-Guizhou Plateau; Great basin is: Sichuan Basin, Qaidam Basin, Tarim Basin and Junggar Basin; The three plains are: the Northeast Plain, the North China Plain and the Middle and Lower Reaches of the Yangtze River.

25. The characteristic texture of the Loess Plateau is loose, there is no vegetation cover here, soil erosion is serious, ravines are vertical and horizontal, the characteristic ground of the Inner Mongolia Plateau is flat and boundless, the characteristic glaciers of the Qinghai-Tibet Plateau are widely distributed, and the characteristic ground of the Yunnan-Guizhou Plateau is rugged.

26. The common natural disasters in mountainous areas are collapses, landslides and mudslides.

27. To develop mountainous areas, special attention should be paid to the construction of ecological environment.

28. Mountainous areas include mountains, rugged plateaus and hills, accounting for about two-thirds of the national territory.

29. In winter, the temperature in the south and the north of China is quite different. In summer, the temperature is generally high in most places.

1October 30,65438 0℃ isotherm is distributed along the Qinling-Huaihe line.

3 1. The coldest place in winter is Mohe in Heilongjiang, and the hottest place in summer is Turpan in Xinjiang.

32. Chongqing, Wuhan and Nanjing are the so-called "three furnaces" in China.

33. The main index for dividing the temperature zone is the active accumulated temperature.

34. China is divided into five temperate zones from north to south: cold temperate zone, middle temperate zone, warm temperate zone, subtropical zone and tropical zone. There is also a plateau climate zone with high terrain, cold climate and vast area.

35. The general trend of annual precipitation in China is decreasing from the southeast coast to the northwest inland.

The place with the most precipitation in China is Huoshaoliao in Taiwan Province Province, and the place with the least precipitation is Toksun in Turpan Basin.

37. The contrast between precipitation and evaporation in a place reflects the humidity of the climate there.

38. The division of dry and wet areas is based on the degree of dry and wet climate. The four major dry and wet areas in China are humid area, semi-humid area, semi-arid area and arid area.

39. The main reasons for the large temperature difference between north and south in China are latitude position and winter wind.

40. The dividing line between monsoon area and non-monsoon area is Daxinganling, Yinshan, Helan, Bayan Kara and Gangdise.

42. The biggest advantage of monsoon climate is that rain and heat are in the same period, but it will bring some disastrous weather such as cold wave, flood and drought and typhoon.

43. Tarim River, the largest inland river in China, mainly comes from the melting water of ice and snow in Kunlun Mountain and Tianshan Mountain. Flowing rivers, such as the Yangtze River, mainly come from natural precipitation.

44. The longest and earliest artificial river in the world is the Beijing-Hangzhou Grand Canal.

45. Bayan Kara, the birthplace of the Yellow River, flows into the Bohai Sea.

46. Ningxia Plain has the reputation of "Jiangnan in the world".

47. The dividing line between the upper and middle reaches of the Yellow River is the estuary, and the dividing line between the middle and lower reaches is Jin Meng.

48. The riverbed of the lower Yellow River gradually rises and becomes an "overground river".

49. After the Yellow River flows through the middle reaches, it produces the most sediment, because the terrain it flows through is the Loess Plateau.

50. The Yangtze River originates in Tanggula Mountain and flows into the East China Sea. It is the longest river with the largest amount of water and the widest drainage area in China, and is known as "water treasure house" and "golden waterway".