"Topography and Relief" China's Natural Environment PPT Courseware 6

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"Topography and Relief" China's Natural Environment PPT Courseware 6

Review questions

1. How many ethnic groups are there in our country? How many ethnic minorities are there?

2. Which ethnic group has the largest population in my country?

3. Which ethnic minority has the largest population? Which ethnic minority has the smallest population?

4. Are there any ethnic minorities with a population exceeding 5 million?

5. What is my country’s ethnic policy?

6. What are the characteristics of ethnic distribution in my country?

(1) The terrain is distributed in a ladder shape

learning target:

1. Use China’s topographic map to describe the distribution and characteristics of the three terrain ladders in my country.

2. Master the skills of reading and using various topographic maps such as layered color topographic maps and topographic profile maps.

Observation: Open the "China Topography and Elevation Map". What do the different colors on the map mean?

Different regions in our country have different altitudes. According to the obvious regional changes in color, how many parts can the terrain be roughly divided into?

Elevation and main terrain of the three-level ladder

first step

More than 4000 meters

plateau, mountain

Tibetan Plateau Himalayas

second step ladder

1000-2000 meters, partially 500 meters

plateau, basin

Inner Mongolia Plateau Sichuan Basin

third level ladder

Below 500 meters

plains, hills

Northeast Plains Southeast Hills

offshore continental shelf

Depth less than 200 meters

islands

The boundary between three steps

The first step: Qinghai-Tibet Plateau

The second step: multiple plateaus and basins

The third ladder: mainly plains and hills

influence of terrain

The influence of terrain on climate: my country's terrain is high in the west and slopes toward the ocean in the east, which is conducive to the promotion of moist air from the sea to the inland of my country, bringing abundant precipitation to vast areas of our country.

The impact of terrain on rivers: "Water flows to lower areas." The terrain is high in the west and low in the east, which will inevitably cause most of my country's major rivers to flow from west to east into the sea. The gap between the steps is huge and contains abundant water energy resources.

The impact of terrain on transportation: On the one hand, the large river flowing eastward connects my country's east-west transportation and facilitates the connection between the coast and the inland; on the other hand, the tall mountains at the junction of the stairs have become a huge obstacle to my country's east-west transportation.

practise

1. Basic characteristics of China’s terrain:

It is higher in the west and lower in the east, distributed in a ladder shape.

2. On the topographic map of China, find the boundaries between the three steps:

The boundary between the first and second steps: starting from the __________ Mountains in the west, passing through the __________ Mountains to the southeast to the eastern edge of the Hengduan Mountains.

The boundaries between the second and third steps: from northeast to southwest are ____Ling, ____shan, Wushan, and ____shan.

1. Which of the following statements about the superiority of my country’s terrain, which is higher in the west and lower in the east, is correct ( )

A. The terrain slopes toward the ocean, which is not conducive to the formation of precipitation.

B. It is in the shape of a staircase, which is conducive to transportation.

C. The river flows from west to east, connecting east-west transportation and promoting economic connections between the coast and the interior.

D. Plateaus and mountains are distributed in the east, which is conducive to the development of various economies.

2. "A great river flows eastward and its waves are washed away" and "A river of spring water flows eastward" means that most of the rivers in our country flow eastward. The reason is that our country's topography ( )

A. High in the east and low in the west B. High in the south and low in the north C. High in the north and low in the south D. High in the west and low in the east

3. The main terrain of the third ladder of terrain in my country is ( )

A plains and hills B plains and plateaus C plateaus and hills D plains and basins

Read the topographic profile of my country along 36 degrees north latitude and answer the following questions:

(1) The terrain of our country is _______ high and _______ low, distributed in a ___________ shape.

(2) Our country’s terrain is divided into _______ ladders. Those with an average altitude above 4,000 meters are the _____ ladder; those whose terrain is mainly basins and plateaus are the ______ ladder; those whose terrain is mainly plains It is the _____th step of the ladder; it goes eastward to the offshore seabed, and the terrain is _______; my country's capital Beijing is located on the _______ step of the ladder.

(3) This kind of terrain is conducive to the advancement of sea ______ to the inland of our country, and the northern ______ can drive southwards for a long time, which is conducive to the formation of __________.

(4) Affected by the terrain, most of the rivers in our country run from _____ to ______ and flow into the sea, communicating ________ transportation, facilitating the connection between the coast and __________, and forming ________ zones on each ladder The huge gap contains rich _____ resources.

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For more information about the "China's Natural Environment Topography and Relief" PPT courseware, please click on the China's Natural Environment ppt topography and relief ppt tag.

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Update Time: 2024-07-31

This template belongs to Geography courseware People's Education Edition Geography for Grade 8 Volume 1 industry PPT template

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