Composition of four-stage bridge

In our daily life, writing is the strangest thing for everyone. With the help of words, people can reflect objective things, express their thoughts and feelings, and transmit knowledge and information. I believe many friends are very upset about writing a composition. The following are six compositions of CET-4 bridge carefully arranged by me for reference only, hoping to help you.

My family lives in a small town in the mountainous area of northern Fujian. On the right side of the town, there is a winding river flowing from north to south, and there is a bridge on the river. Although it is not as long as Zhao Zhouqiao, as far-reaching as Lugou Bridge and as majestic as Nanjing Yangtze River Bridge. However, in the minds of our 40 thousand people in Dongyou Town, it is unparalleled.

This bridge is strong and durable. Built in August of 1976, it is 312m long and 9m wide. This is an arch bridge composed of huge stone strips. After more than 20 years of wind and rain, the sun and rain are still the same. Especially on June 22nd 1998, Dongyou Town was hit by the worst flood in a century. At that time, the flood had overflowed the bridge deck, and the villagers thought that the bridge would definitely cross. And it didn't move. This fully embodies the superb technology of bridge construction.

This bridge is beautiful and generous. The bridge deck is paved with cement concrete, which is very flat and has a width on both sides. An 8-meter-long sidewalk with an expressway in the middle. On both sides of the sidewalk are chest-high cement railings, recently painted with white lime, which are particularly dazzling. There is a pillar on the railing every 3 meters, with 190 * *, like 190 mighty soldiers guarding the peace of the bridge and the peace of the people marching eastward. There are three cement flower windows, three cement flower lattices and six cement flower holes with the same shape between every two columns. Eight street lamps are installed at equal distance on the left side of the bridge, and five colored lights are installed at both ends of the right side, with the largest one in the middle and the other four smaller. The bottom of the bridge is arched, with 7 large arches and 3 small arches. If the weather is fine, it really feels like "Lugou Xiaoyue", which is really beautiful.

During the day, the traffic on the bridge is endless. The roar of cars, the flute of motorcycles and the jingle of bicycles are playing a symphony; At night, groups of children play on the bridge, couples love each other, and rows of old people walk to pay New Year's greetings … draw a picture of communication and joy.

Ah, the bridge in my hometown! You are the most beautiful and important bridge in the eyes of hometown people.

There is a particularly beautiful bridge in my hometown. It is called Dongyang River Bridge, which was built in 20xx.

Seen from a distance, Dongyang River Bridge spans like Wolong, about 500 meters long. The width is about15m, and the crosswalks on both sides are about 1m. Both sides are the same guardrail. A * * * has 480 pillars, and there is a lovely lion on each pillar. Some lions have a small ball under their feet. They are like brave soldiers. Guarding the bridge day and night. There are 48 street lamps on both sides of the bridge. They become colorful at night. Some are yellow, some are purple, some are green, shining and illuminating the beautiful Dongyang River Bridge.

In the morning, the air is particularly fresh. On the Dongyang River Bridge, some people went to the market early, some went to the park, some went to work and some went to school. And ... the current of the Dongyang River Bridge is as fast as an arrow. There are fish in the water! Some people go fishing here with fishing rods and fishing gear every morning. I go there every morning to watch them go fishing.

This is our beautiful Dongyang River Bridge.

There is a bridge in my hometown, a beautiful bridge.

My hometown is near the water. This is a county. I'm afraid no one has heard of it. But when you come here and look at a row of green willows, you will definitely see a bridge next to the willows-a beautiful and ancient bridge.

This bridge is made of stone. Due to the age, there is obvious moss on the stone. Green moss adds a touch of "youth" to this old bridge. I wonder how beautiful the ancient bridge was when it was young. Maybe my parents know, maybe only my grandparents know, or maybe I don't know how long it has been standing. Many people pass by every day, but no one pays attention to the bridge. The scenery along the way made them forget the ancient bridge they had walked over for many years. The stone under their feet shows that this ancient bridge is very old. He has no tree rings to record his age, only that, that piece of green moss.

The old bridge is like a venerable old man. He has no crutches. He has many friends, such as willows and rivers ... The ancient bridge is not lonely, because nature accompanies him.

During the Spring Festival, the old bridge was covered with lanterns and neon lights. How happy he is at this moment. The new year's breath enveloped the whole city, and the old bridge was much younger with laughter. ...

We have all seen eggs and arch bridges, but what is the connection between them?

Everyone has seen an egg. It's very fragile. It breaks when touched. But I heard from my classmates that eggs are sometimes very strong!

In order to test this theory, I did an experiment. I first took an egg, two transparent plastic rings and some thick books, and then put the plastic rings on both ends of the egg. Finally, I slowly added books to it, adding three thick books, and the eggs were not broken. What's going on here?

I did a second experiment. I pinch eggs with my hands. I tried my best to squeeze eggs, just like magic, and I couldn't squeeze them. When I was angry, I knocked the egg against the edge of the bowl and it broke easily. What's going on here?

I looked up the information on the internet, and it turns out that the shape of the egg disperses the force to all parts of the egg, so that it can bear great pressure. Scientists used the principle of eggs to build an arch bridge. Zhao Zhouqiao is a typical example. Look closely at the shape of Zhao Zhouqiao. It is almost like an egg. There was no diving equipment in ancient times, so no one went underwater to lay the foundation. The ancients chose the shape of a semicircle to build a bridge, so that the bridge can disperse the force to all parts, so that the arch bridge will not collapse under pressure, and the shape of the semicircle is also very strong.

People use the principle of eggs to build arch bridges. How wonderful nature is! I must study hard, observe attentively, and discover more secrets of nature with my heart!

The bridge I imagined was built in 2070. It is everywhere, and it is a fully automatic bridge. As long as you press your own bell, the bridge will appear at your door. Isn't it amazing? Even more amazing is yet to come!

The bridge is colored, arched and has four thick supports. It stopped on the ground as if it had taken root and clung to the ground tightly. The bridge has a protective film and will not be blown off. It is the crystallization of the wisdom of hundreds of scientists in China, so it is certainly not something "something for nothing". Next, let me talk about the magic of this bridge!

This bridge is refined by the accelerator and reinforcement parts of the flying saucer at the speed of light, and can be divided into tens of thousands of flying saucer bridges. There are thousands of flying saucer bridges in China, so people all over the country can use them. Just enter the bridge, tell the robot standing on the bridge fence that the place you want to go should face the address of the bridge, and then get off the bridge on the other side, and you will be there. If a blind man comes, as long as he says his address in the direction of the bridge, the robot on the bridge will get off the bridge, help the blind man get on the bridge, and then get off the bridge. If you are deaf-mute, just pat the railing of the bridge and a piece of paper and a pen will come out of the crack on the bridge. Just write down the address and stuff the paper into the hole. Very convenient!

I hope that such a flying saucer bridge will appear in our country as soon as possible.

In the morning, the clouds in the sky burst into laughter and the sun came out with a red face. The rabbit slipped out of bed. After breakfast, Little Rabbit walked to the school across the river with a happy mood.

But as soon as I stepped on the bridge, I heard a "click". The rabbit quickly drew back its feet. Little rabbit stood on the shore, worried. It thought: it's over, the single-plank bridge is broken, and it will definitely be late for school today. What shall we do? Our teacher is very strict! The more he thought about it, the more afraid he became, so he sat on the grass and began to cry. Just then, the little monkey came here. Seeing the rabbit crying so sadly, it asked, "Rabbit, why are you crying?" The rabbit said with tears, "The single-plank bridge is broken, so I can't go to school." The little monkey scratched his head and thought of a way. He said to the little rabbit, "Yes, I'll find a piece of wood and fix the bridge." Just finished, the little monkey ran forward quickly. After a while, the little monkey came back and saw him sweating with a piece of wood.

Through the efforts of the little monkey, Xiao Qiao's illness was finally cured by the little monkey. The rabbit jumped on the new wooden bridge. It said gratefully, "Thank you, little monkey, you are really a kind person."