Write a composition about Qiantang River Bridge.

1. Composition on Qiantang River Bridge The design and construction of Qiantang River Bridge was presided over by Dr. Mao Yisheng, a contemporary bridge expert.

In order to complete the important task of building the bridge, Mao Yisheng resolutely resigned from the chair of Beiyang University and came to Hangzhou alone. The bridge construction scheme he formulated was not only feasible, but also reduced the investment by about 2 million yuan compared with the scheme proposed by American bridge expert Walter, and was finally adopted by the authorities.

1934165438+1October 1 1, Qiantang river bridge started construction. Mao Yisheng, 39, was appointed as the chief designer and chief engineer of Qiantang River Bridge.

At that time, the Japanese militaristic invaders had trampled on the northeast of China and targeted North China and even China in an attempt to subjugate the country. Although Mao Yisheng was not a politician, he loved his motherland, and his worries about the current situation kept him sober.

The completion of Qiantang River Bridge not only greatly facilitates the traffic between the north and south of Qiantang River, but also forms a magnificent landscape along the south line of West Lake Scenic Area with Pagoda of Six Harmonies. The bridge was designed and constructed by Mao Yisheng, a famous bridge engineer. Pneumatic caisson dredging and piling were first successful.

It broke the prediction of foreigners that it is impossible to build a bridge here. Be ambitious for the people of China.

Now, the second Qiantang River Bridge with parallel roads and railways has been completed and opened to traffic. Become the hub of Zhejiang-Jiangxi-Shanghai-Hangzhou double-track railway.

Double rainbow flying, magnificent. The majestic bridge expresses the great ambition of Chinese sons and daughters to stand on their own feet in the world. The unforgettable sadness of "Exhausting a thousand days of wisdom and blowing up the bridge on the day of opening to traffic" engraved in it makes China people unforgettable.

Qiantang River Bridge is not only a great achievement in the history of Chinese bridges, but also a brilliant milestone in the history of China railway bridges.

2. How to write Mao Yisheng and Qiantang River Bridge? I read this book today. There is an article about Mao Yisheng in the book. I know that Mao Yisheng is a person who studies hard, is not afraid of difficulties and has made great contributions to the motherland. He is a man worthy of our study.

The article said that when he was admitted to Tsinghua University, there were many candidates, the quota was limited, and the topic was difficult, so he was able to get the first place in the exam, which was inseparable from his usual efforts.

Mao Yisheng had a beautiful ideal when he was a child. We should also set up beautiful ideals from childhood, and strive for our ideals like Mao Yisheng. If you want to realize your dream, you should start with small things, read more books, extract useful and interesting knowledge from your life, and learn to look up wordless dictionaries.

The first bridge built in Mao Yisheng is Qiantang River Bridge. There are many difficulties in the construction process. Mao Yisheng just overcame many difficulties. After two and a half years of hard work, the Qiantang River Bridge spans the river like a rainbow, and Mao Yisheng finally realized his childhood dream of building a bridge for the people.

Qiantang River Bridge not only wrote an epic page in the Chinese nation's struggle against foreign invaders, but also played an important role in the national economy. Since it was opened to traffic for 65 years, it has made immortal contributions to the development of transportation and the prosperity of local economy in China. Qiantang River Bridge has shown the world the wisdom of China's scientific and technological workers. Chinese bridge engineers headed by Mao Yisheng showed great patriotism in the construction of Qiantang River Bridge. They have overcome all difficulties and obstacles, and their patriotism will always inspire us to make unremitting contributions to the prosperity and strength of the motherland!

3. Mao Yisheng and Qiantang River Bridge 400 words after reading. Qiantang River Bridge is above Qiantang River in Hangzhou, Zhejiang Province, with a total length of 1.453 meters and a width of 9.

1 m, with a height of 71m. It is divided into two floors, with the upper floor by car and the lower floor by train.

It spans the Qiantang River and connects the two banks. On the bridge, you can see the choppy Qiantang River.

There are ships sailing on the river. Qiantang River Bridge stands by the river like a long dragon across the river.

It has spanned the Qiantang River for 70 years, rain or shine, and it has established contact on both sides of the turbulent Qiantang River. 1937 165438+1October16, Shanghai was breached and Hangzhou was in danger. * * * ordered the designer Mao Yisheng to cover the bridge with explosives.

1937 65438+At 5 pm on February 23, the Japanese army was faintly visible at the bridgehead. Mao Yisheng lit all the leads together, and two piers of Qiantang River Bridge were destroyed. 1In May, 948, the Qiantang River Bridge was restored, fulfilling Mao Yisheng's oath that "the bridge will be restored if War of Resistance against Japanese Aggression wins".

Qiantang River Bridge is the first modern bridge built by China people, which has an irreplaceable position in history. From War of Resistance against Japanese Aggression to now, the Qiantang River Bridge seems to be looking at the vehicles above, staring at the choppy Qiantang River and paying attention to the ever-developing Hangzhou.

4. Chang Shanlong, the author of Mao Yisheng's Fried Qiantang River Bridge, said that when it comes to Qiantang River Bridge, it is the pride of everyone in China. It is the first railway and highway steel bridge built by the people of China. Do you want to know who built such a modern bridge with their wisdom and sweat? This man is Mao Yisheng.

1On July 7, 937, the Lugouqiao Incident broke out. Grandpa Mao Yisheng had a premonition that he didn't want to face up to. He ordered a rectangular hole to be left on pier 2 in the south of the bridge.

1937 165438+1October16 Nanjing * * * gave the order to blow up the bridge, and grandpa Mao Yisheng nodded with a heavy heart. The big hole reserved under the bridge is to prepare for this day. Grandpa Mao Yisheng marked the fatal points one by one and personally saw that more than 100 leads were connected. 1937 On February 23rd, Grandpa Mao Yisheng officially received the order to blow up the bridge. He stood on the bridge and looked at the surging refugees on the bridge, filled with endless anger against Japanese fascism. At 5 o'clock in the evening, the dust raised by the Japanese cavalry has gone away. Grandpa Mao Yisheng ordered the bridge to be closed and bombed. With a deafening noise, this1453m dragon lying across the Qiantang River was cut off, and Grandpa Mao Yisheng's painstaking efforts were wasted. That evening, Grandpa Mao Yisheng wrote eight words in front of his desk: "After the victory of the Anti-Japanese War, this bridge will be repaired." This wish was finally realized in 1953.

In order to defeat the enemy, Grandpa Mao Yisheng blew up the Qiantang River Bridge he bought with wisdom and painstaking efforts. Well done! His patriotic spirit has been handed down from generation to generation, which is worth remembering by everyone in China. The Chinese nation needs patriotic people like Grandpa Mao Yisheng to make the country rich and strong!

5. Ask primary school for a text about the construction of Qiantang River Bridge. When the Qiantang River Bridge is mentioned, people think of Mao Yisheng.

Mao Yisheng himself recalled many years later: "From 19 19 to 12, I returned to China to serve the society. In the journey of decades, the most striking work I have done is to preside over the construction of Qiantang River Bridge. " Qiantang River Bridge was built in the anti-Japanese bonfire, which not only wrote an epic page in the Chinese nation's struggle against foreign invaders, but also has a milestone significance in the history of Chinese bridge construction and is also the cradle of Chinese bridge engineers.

But the legend of this bridge is the most unforgettable. In 1930s, zhejiang-jiangxi railway, which was under construction, needed to build a bridge over the Qiantang River to connect with the Shanghai-Hangzhou Railway.

1934, Mao Yisheng, then director of Qiantang River Bridge Engineering Department, was appointed to be responsible for the first steel bridge project built by China people themselves. In the past, there were some bridges on the Dachuan River in China, but they were all made by foreigners: Jinan Yellow River Bridge was made by Germans, Bengbu Huaihe River Bridge was made by Americans, and Harbin Songhua River Bridge was made by Russians ... As you can imagine, Mao Yisheng shoulders an unprecedented responsibility, and he will use his wisdom to prove that China people have the ability to build modern bridges.

Qiantang River, also known as Qianjiang River, is located at the mouth of the sea. The tidal current is swift and surging. Qian Jiangchao standing at the head of the tide and unstable sediment changing with the current are two major problems in bridge construction. Mao Yisheng overcame many difficulties in the process of building the bridge. He used the methods of "water injection", "caisson" and "drifting away" to solve the technical problems in bridge construction and ensure the progress of the bridge project.

By 1937, when the bridge was about to be completed, the "August 13th" war broke out in Shanghai! Qiantang River Bridge was baptized by the fierce fire of the Anti-Japanese War before it was put into use. Mao Yisheng said that on the second day of "August13", that is, August 14, three Japanese planes bombed the construction site. At that time, he was discussing with several engineers and supervisors in the caisson 30 meters under Pier 6. Suddenly, all the lights in the caisson went out and it was dark. It turned out that the lights on the construction site were turned off because of the Japanese plane bombing.

This Japanese bombing is the first time in Jiangsu and Zhejiang provinces. Before the project was completed, the war had burned to the Qiantang River. At this time, there is still an unfinished pier in the river, and two steel beams on the pier cannot be installed. In the next 40 days, the workers who built the bridge United as an enemy. With great patriotic enthusiasm, they braved the dust of the enemy bomb explosion to speed up the work day and night. On the morning of September 26th, 1937, the first train arrived.

On the opening day, trains loaded with a large number of arms and materials began to cross the bridge one after another. Since then, the anti-Japanese war situation in Shanghai has become increasingly tense.

In the same year, on the afternoon of 165438+1October16, an instructor of Nanjing Engineering School found Mao Yisheng in the Bridge Engineering Department, showed him a top-secret document of Nanjing, briefly introduced the current grim situation, and said, "If Hangzhou is not guaranteed, the Qiantang River Bridge will be Japanese!" Nanjing * * * file, demanding to blow up the Qianjiang Bridge, which is a last resort. People in Nanjing also revealed that the explosives and blasting equipment needed to blow up the bridge have been transported directly from Nanjing, just outside the car.

It is really a sad thing to blow up the bridge that has been built hard for two and a half years and the railway that has just been opened to traffic. Mao Yisheng is going through the most painful moment in his life. After discussion and careful consideration with engineers and technicians, the bridge blasting scheme was finally decided.

That night, all the explosives were placed on the steel bars of the second pier and the five-hole steel beam on the south bank. 100 More than one lead wire was connected from one explosion point to another, and all the five-hole piers of the bridge were blown up with only one command. 165438+1October 17 in the early morning, Mao Yisheng received an order from Zhejiang province. Due to the influx of refugees into Hangzhou, the ferry was simply not enough, and the highway part of Qiantang River Bridge had to be opened to traffic on the same day.

Zhejiang * * * didn't know that explosives had just been installed on the bridge at this time, so it was highly confidential. The pavement of Da Qiao Highway was paved more than a month ago, but it has not been opened for fear of enemy bombing. Why is it called opening to traffic now? It turns out that from Saburo Temple in Hangzhou to Xixing, there are generally 10,000 to 20,000 people crossing the river. After the Shanghai War broke out, more people crossed the river. It is not enough to cross the river by boat. Unexpectedly 16 another ship sank, and there were too many people waiting to cross the river. Coupled with the more tense war, the situation is grim, so we have to save * * and decide to open the bridge.

On that day, the bridge was fully opened to traffic. On this day, people who got the news came from Hangzhou and Ningbo. Thousands of people came to the Qiantang River under Pagoda of Six Harmonies, and even Pagoda of Six Harmonies was crowded with people. When the first car crossed the bridge, hundreds of thousands of people on both sides of the strait applauded and cheered. The scene was very touching.

But who knows, hundreds of kilograms of explosives were put on the bridge at this time, and the bridge designed and built by China people themselves was already facing the fate of being blown up on the day it was built! On February 22nd, 65438, the Japanese army attacked Wu Kang and defended Fuyang, and Hangzhou was in danger. Needless to say, pedestrians crossing the south of Qianjiang Bridge. On the railway side, Shanghai-Nanjing has been closed to traffic, and Qianjiang Bridge has become a retreat. According to the estimation of the railway bureau at that time, more than 300 locomotives and more than 2,000 trucks passed the bridge on the 22nd.

The next day, February 23rd, 1937, 1937, the Japanese army began to attack Hangzhou. At 1 that afternoon, Mao Yisheng finally received the order: blow up the bridge. At 3 o'clock in the afternoon, all the preparations for bombing the bridge were ready.

Standing on the bridge, he looked at the refugees coming from the darkness on the bridge, and his heart was filled with anger against the Japanese aggressors. At 5 o'clock in the evening, the dust raised by the Japanese cavalry was faintly visible. Mao Yisheng ordered the bridge to be closed, no traffic allowed, and blasting was carried out! With a loud noise, this 1.453-meter-long Wolong was cut off from six places.

After 925 days of intense construction day and night, this modern bridge cost 6.5438+0.6 million US dollars, and only existed for 89 days. On the night when the bridge was bombed, Mao Yisheng wrote eight words on his desk: "The Anti-Japanese War will win, and this bridge will be restored"; He also wrote a poem, "The color of the battle between the earth and the wind suddenly changed, the bridge was torn, the five elements were short of fire, and the bridge and husband were not restored."

After the bridge was bombed, the Bridge Engineering Office all retreated, and Mao Yisheng took it with him.

6. Writing the composition of the bridge In the vast East China Sea, there are more than a thousand islands, large and small, like bright pearls. This is my hometown-Zhoushan. A long time ago, people had a beautiful dream: how wonderful it would be to have a bridge to connect more than 1000 islands in Zhoushan and build another bridge to connect Zhoushan with the mainland of the motherland. In this way, the communication between the two islands will become more convenient, making "Fish Capital, Hong Kong City, Haitian Buddha Country" more beautiful and moving, emitting her unique charm and attracting more tourists.

Before the bridge was completed, it took more than two hours from Zhoushan to Ningbo. I remember one time, our family of three went to Ningbo to play, and the car was facing the ferry peak when it passed Baifeng Wharf. We didn't get on the ferry from 1 until 8 pm, and it was late at night when we got home. In case of typhoon or bad weather, it is even more troublesome to refuse to cross the ship and stop. Zhoushan people can't get out, and outsiders can't get in. The vast sea is like an invisible giant wall. You see, how inconvenient it is to have no bridge!

The completion of the bridge has been a dream of Zhoushan people for thousands of years and will eventually come true! I think, by that time, our hometown will definitely undergo earth-shaking changes.

The cross-sea bridge not only connects the islands, but also connects the dreams of countless people. Let us look forward to the bridge economy era and the day when our dreams come true.