"Mother River" the homeland of people of all ethnic groups in China PPT courseware

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"Mother River" the homeland of people of all ethnic groups in China PPT courseware

Part One: Overview of the Yellow River

1. Source, into the ocean, full length

2.Flow through provinces and regions

3. The boundary between the upper, middle and lower reaches

4.Main tributaries

5. Main terrain areas through which it flows

The first dam of the Yellow River---Longyangxia Dam: It is a landscape in the upper reaches of the Yellow River. It is located at the forefront of the first step of my country's terrain. The huge terrain gap contains rich water energy resources. The river section from Longyangxia to Qingtongxia is a "rich mine" for hydropower.

Hydrological characteristics of the Yellow River

Upstream: large drop, many canyons, and rich water resources

Midstream: high sand content

Downstream: Slow-flowing, "above-ground river"

Hazards and treatment

The fundamentals of sand control: strengthening afforestation and soil and water conservation in the middle reaches of the Loess Plateau

Mother River PPT, Part 2: Overview of the Yangtze River

1. Source, into the ocean, full length

2.Flow through provinces and regions

3.Main tributaries

4. Division of upstream, middle and downstream

5. Main terrain areas through which it flows

The Yangtze River originates from the Geladandong Snow Peak (6621m), the main peak of the Tanggula Mountains, flows eastward in a meandering direction, and flows into the East China Sea, with a total length of more than 6,300 kilometers. The Yangtze River is rich in water and has many tributaries, nourishing nearly 20% of the country's land. It is undoubtedly the largest river in China.

1. Overview

The provinces and regions that the Yellow River and the Yangtze River pass through together are: Qinghai and Sichuan

2. Contribution

The role of the Yangtze River:

The Yangtze River plays an important role in shipping, power generation, irrigation, etc.

The Yangtze River is China's most important inland shipping artery and is known as the "golden waterway".

3. Hazards and Treatment

Although the two devastating Yangtze River floods in 1954 and 1998 have become history, we can still clearly see the cruel facts in the photos. Mother River wants to use punishment to warn humans.

Discussion: What are the causes of floods in the Yangtze River? What are the natural causes? What are the human causes? What measures should we take?

Keywords: free download of History and Society PPT courseware for the second volume of the seventh grade of the People's Education Press, PPT download of Mother River, PPT download of the homeland of people of all ethnic groups in China, .PPT format;

For more information about the PPT courseware "Mother River, the home of the people of all ethnic groups in China", please click the "Mother River, the home of the people of all ethnic groups in China" ppt tag.

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Update Time: 2024-11-03

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