"How the Yellow River Changes" PPT Courseware 2

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"How the Yellow River Changes" PPT Courseware 2

Please tell me the reasons for the changes in the Yellow River:

First, since the Qin Dynasty, the temperature on the Loess Plateau has turned cold and heavy rains have concentrated. In addition, the loess itself has a loose structure and is easily eroded and collapsed, which contributes to soil erosion and causes a large amount of sediment to enter the Yellow River.

Second, the rapid growth of population and unrestricted land reclamation and grazing have destroyed forests, destroyed grasslands, and seriously damaged green vegetation. The Loess Plateau has lost its natural protective layer, causing serious water and soil erosion. As a result, there are more and more sediments in the Yellow River. The Yellow River bursts and changes its course more frequently.

Interesting explanation of idiom - Kuafu chasing the sun

In ancient times, there was a man named Kuafu in China, who was also one of the stupidest people since the beginning of the world. Everyone is busy making money, but he can't do anything and chases the sun all day long. Isn't he mentally ill? If you want to chase the sun, just chase the sun, but he was so greedy that he drank up all the water in the Yellow River and the Weishui River. The current frequent interruption of the Yellow River is the result of this guy. The matter is not over yet. This guy stole a branch from someone's peach forest one day and made it into a walking stick. Finally, he "went to the north to drink from Daze, but before he arrived, he died of thirst. He abandoned his stick and turned into Deng Lin." Deng Lin was born from this branch. It seems that the vitality of the peach tree is obviously stronger than that of Kuafu, and it can still survive when made into a walking stick, but I don't see Kuafu having descendants. Therefore, the idiom "Kuafu chasing the sun" is derived from this.

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"How the Yellow River Changes" PPT courseware 4:

"How the Yellow River Changes" PPT Courseware 4 First Reading Text The text focuses on the word change and focuses on introducing us to what aspects of the Yellow River? How does the Yellow River change... cradle, fertile, tossing, distress, dam, comparable to erosion, collapse, destruction...

"How the Yellow River Changes" PPT courseware 3:

"How the Yellow River Changes" PPT Courseware 3 Learning Objectives 1. Understand the evolution process of the Yellow River and the reasons for its changes, and cultivate students' awareness of protecting nature. 2. Clarify the context of the text and summarize the main ideas of the paragraphs. 3. Understand the lessons that the changes in the Yellow River teach people. ..

"How the Yellow River Changes" PPT courseware:

"How the Yellow River Changes" PPT courseware Introduction to the Yellow River The Yellow River is the second largest river in China. Originating from the Yuegu Zonglie Basin at the northern foot of the Bayan Har Mountains in the Qinghai Plateau, it meanders eastward, passing through the Loess Plateau and the Huang-Huaihai Plain, and flows through Qinghai, Sichuan, Gansu, Ningxia, Nei...

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Update Time: 2024-09-11

This template belongs to Chinese courseware People's Education Edition Chinese Language for Grade 4 Volume 2 industry PPT template

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