What are the main points that the text illustrates around the Chinese stone arch bridge

Explain the method and function:

1. Definition: "There is stone masonry between every two stone arches."

The piers connect the 11 stone arches into a whole, so this kind of bridge is called the double arch stone bridge.

2. For example: "The bridge is not an ordinary semicircle, but like a bow .......""It vividly illustrates the Chinese stone arch bridge.

Basic features in form.

3. Imitation: "Some ......."Some ......Some ......"The vivid posture of the lion is depicted, showing the Lugou Bridge.

The art of the arts.

4. Column numbers: "Zhaozhou Bridge is a draft."

Very majestic, full length meters, wide at the ends, slightly narrower in the middle, 9 meters wide. Through conclusive data, the scale of the bridge is accurately illustrated, highlighting the "majestic" characteristics of the Zhaozhou Bridge.

The first section: the bridge hole of the stone arch bridge is arc-shaped;

The second section: the stone arch bridge has a long history, beautiful form and strong structure;

The third paragraph: China's stone arch bridges have a long history, are widely distributed, have various forms, and have many amazing masterpieces;

Section 4: Zhaozhou Bridge has a long history and a solid structure;

The fifth paragraph: Zhaozhou Bridge is scientifically designed and ingenious;

The sixth paragraph: Lugou Bridge has a solid structure, ingenious technology and scientific design;

Section 7: Lugou Bridge is world-famous and beautifully built;

The eighth section of filial piety: Lugou Bridge has important commemorative significance in the history of our country;

Paragraph 9: The reasons for the glorious achievements of the stone arch bridge in our country;

Paragraph 10: China's bridge industry is well developed.

Explain the method and function:

1. Definition: "There are stone piers between every two stone arches, connecting 11 stone arches into a whole, so this kind of bridge is called a double arch stone bridge."

2. For example: "The bridge is not an ordinary semicircle, but like a bow .......""It vividly illustrates the Chinese stone arch bridge.

Basic features in form.

3. Imitation: "Some ......."Some ......Some ......"The vivid posture of the lion is depicted, showing the Lugou Bridge.

The art of the arts.

4. Column number: "Zhaozhou Bridge."

Very majestic, full length meters, wide at the ends, slightly narrower in the middle, 9 meters wide. Through conclusive data, the scale of the bridge is accurately illustrated, highlighting the "majestic" characteristics of the Zhaozhou Bridge.

"Chinese Stone Arch Bridge" is the first volume of the eighth grade text of the People's Education Edition.

"Chinese Stone Arch Bridge" selected "Zhaozhou Bridge.

and "Lugou Bridge."

These two outstanding representatives of China's stone arch bridges, using a variety of explanation methods, introduced in detail the history and characteristics of China's stone arch bridges, explained the unique creation and immortal artistic value of China's stone arch bridges in the design and construction, and praised the wisdom and wisdom of China's working people.

The bridge hole of the stone arch bridge is arc-shaped, which appeared relatively early in the history of bridges in the world. This kind of bridge is not only beautiful in form, but also strong in structure, which can span the river for decades, hundreds or even thousands of years, and play a role in transportation.

Stone arch bridges in our country have a long history. They can be found almost everywhere, in different sizes and forms, and many are amazing masterpieces. One of the most famous is Zhao County, Hebei Province.

Zhaozhou Bridge, as well as Fengtai District, Beijing.

The Lugou Bridge. Why do China's stone arch bridges have such glorious achievements? First of all, it lies in the diligence and wisdom of the working people of our country.

Secondly, the design of stone arch bridges in China has a fine tradition, and the bridges built are economical in materials, clever in structure and high in strength. Secondly, China is rich in various stones for construction, which is convenient for local materials, which also provides favorable conditions for the construction of stone bridges.

Over the past two thousand years, countless stone arch bridges have been built in our country. After the liberation, many stone arch bridges were built on a large scale across the country. In recent years, the country has built a total length of more than 200,000 meters of this arch bridge, the largest of which is 150 meters long.

The rapid development of China's bridge industry shows that China's socialist system.

superiority.

In the logical order (from general to particular, the order is reasonable), the author uses scientific, plain, and concise explanatory language, and first explains the characteristics of the stone arch bridge: it has a long history, a beautiful form, and a solid structure. Then, use examples, taking Zhaozhou Bridge and Lugou Bridge as examples.

The full text can be divided into three parts.

1. Part 1 (paragraphs 1-2): Characteristics of stone arch bridges: beautiful form, long history, solid structure, 2. Part 2 (paragraphs 3-9): Illustrate the characteristics of stone arch bridges in China.

Paragraph 3): General characteristics of stone arch bridges in China;

Paragraph 4): Location and date of construction of the Zhaozhou Bridge;

Paragraph 5): Structural features of the Zhaozhou Bridge;

Paragraph 6): Location and date of construction of the Lugou Bridge;

Paragraph 7): the artistic value of the Lugou Bridge;

Paragraph 8): The historical and commemorative significance of the Lugou Bridge;

Paragraph 9): The reason for the glorious achievements of China's stone arch bridges.

3. Part 3 (paragraph 10): The current development of stone arch bridges in China.