In daily life or work and study, everyone is familiar with composition. Composition is composed of words, which is a literary style that expresses the meaning of a theme through language organization after human thought consideration. What kind of composition can be called an excellent composition? The following are 7 essays that I have compiled for everyone. They are for reference only. Let’s take a look. Post-reading essay Part 1

Chapter 1 Why are there people?

Dawkins’ purpose is to study the biological significance of selfish behavior and altruistic behavior. Here he attempts to explain his own position and cites some of the controversial doctrines.

He pointed out that there are currently two major theoretical systems: "group selection" theory and "individual selection" theory.

Group selection theory holds that: a group, such as a species or a group within a species, if its individual members are prepared to sacrifice themselves for the benefit of the group, such a group should be compared to another competing group. A group is less likely to become extinct if its individual members put their own selfish interests first. Therefore, the world is mostly occupied by groups of self-sacrificing individuals.

Individual selection theory holds that even among a group of altruists, there are almost certainly a small number of dissenters who refuse to make any sacrifices. If there is a selfish rebel prepared to exploit the altruism of other members, it is more likely than other members to survive and reproduce. These offspring have a tendency to inherit their selfish traits. After a few generations of such natural selection, the "altruistic group" will be overwhelmed by selfish individuals. Whether a group becomes extinct may be affected by the behavior of individuals in the group.

Finally, he laid out his belief that the basic unit of choice, and therefore of self-interest, is neither a species nor a group, nor, strictly speaking, even an individual, but a genetic unit. Gene.

In this chapter, he gave me the initial impression of being calm-minded, clear-minded, and having a fair and rigorous attitude towards studying. I appreciate this attitude very much.

Chapter 2 Replicating Genes

At this point, the author has answered the question that was not answered in the first chapter: Why are there people?

So, why would there be someone? He pointed out that human beings are the ultimate reason for existence to preserve genes and are the survival machines of genes.

He first presented the hemoglobin model in extremely popular language, and then, based on a concrete premise, elaborated on the formation of replicating genes, the emergence of competition, and the evolutionary process.

Simply put, replicating genes copy themselves and assemble molecules that serve as building blocks to form stable chains. When there are more and more such chains and the surrounding building blocks become scarce, different varieties or strains The replicators must fight each other to compete for them, and "any replication error that leads to a higher level of stability, or that weakens the opponent's stability in a new way, will automatically be perpetuated and multiplied." "Growth", which leads to "the struggle for survival gradually intensifies, the size of the survival machine becomes larger and larger, and its structure becomes increasingly complex. This is an accumulation and gradual process." It is this process of accumulation and gradual development that humans have become today. One of the products.

Chapter 3 The Immortal Spiral

The gist of this chapter is: Gene is the basic unit of natural selection.

I found that Dawkins did not seem to have enough confidence in the theory he elaborated. In other words, with his talent, he was still unable to find a suitable and convincing metaphor on a macro scale to prove how genes Self-copying, how to obey natural selection, etc. At the same time, I noticed that he used the words "coincidence" and "of course" many times, which I didn't like to see. These words are not rigorous enough.

The irony is that "coincidentally", "of course" and "lucky" are common tactics used by Darwinists, if they are not stupid enough to defect and obey Lamarckism.

Of course, despite this, I still admire his narrative ability. He explained why genes have become the basic unit of natural selection. This is a family statement, but it is very convincing.

Genes exist almost forever in the form of copies. In order to survive, sacrifices, etc., increase the chances of survival for genes. Genes are the basic unit of selfish behavior. It can be said with certainty that genes that can survive must have selfish characteristics.

This chapter is very long, and it shows how traditional and authentic a Darwinist Dawkins is.

I don’t want to omit many interesting examples, but there are too many. I agree with what he proposed: the difference between one (entity) and another can be easily traced back to one or several previous differences in environment or genes. It is these differences that are really related to the competition and struggle for survival, as far as the competition and struggle for survival is concerned. Evolutionarily speaking, what matters are differences under genetic control. After-reading essay Part 2

Love is the foundation of the human heart and the root of the world. Love is hidden in the nagging of parents and the strictness of teachers. Without love, there would be no warm and harmonious world like ours. Just the day before yesterday, I finished reading the book "Education of Love", and ripples suddenly appeared in my heart. I deeply felt the power of love, which is warm and beautiful... "Education of Love" is written in the form of a diary The book records the school life of a fourth-grade boy, Amway, for one semester. Although the book does not use too many gorgeous words, it is true and touching.

The protagonist Amway is an innocent, kind, diligent and studious child. He is sincere and very friendly to his classmates. After listening to my father's teachings, I corrected my mistakes when I realized they were wrong. Look at Amway, and then think about yourself. I usually quarreled and bickered with my parents at every turn. When my parents taught me, I would either mumble a little or wave their sleeves away. I turned a deaf ear to what my parents said. I don’t know how many gray hairs and wrinkles they caused! As for Amway, he is filial to his parents and never quarrels with them. I must learn from him, communicate with my parents more often when encountering problems, and get rid of my bad habits as soon as possible.

What I also admire is Cuarón who acts bravely for justice. He drew his sword to help when there was an injustice, so that even after school and holidays, everyone still could not forget this chivalrous young man. When he saw Grosi being bullied, he stepped forward to help him; when he saw Na Ge being laughed at, he stared to protect Na Ge. Looking at myself, as a team committee member, whenever I see classmates fighting, I either stand by and watch, or I fan the flames. Compared with Caron, it is simply a far cry! I should really learn from him! ( )

Whether it is the innocent and kind-hearted Enrico, the excellent Dailosi in both morals and academics, or the brave Kalon. They all have a source of motivation in their hearts, that is love, love for teachers, love for parents, and care for classmates. Let the strange power of love enter our hearts and every corner of the world, and the world will be more harmonious and beautiful! Post-reading essay Part 3

The vast ocean, like the universe, contains endless mysteries. In the vast sea, there are endless treasures: oil, ores and pirate ships that have been dormant on the seabed for thousands of years. In the sea, fish are the overlords: there are extremely ferocious sharks, oversized whales, swarms of tropical fish, "long-nosed" tuna... Like creatures on land, they are also predators of the weak. There is a saying: "Big fish eat small fish, small fish eat shrimps, and shrimps eat mud." This sentence clearly summarizes the "food chain" of marine life.

Reading the book "Going to the Ocean" made me understand the mysteries of the ocean better, but just one book is not enough, because knowledge is broader than the ocean, and learning is endless! Now let’s share some knowledge about the ocean.

People always think that corals are underwater plants. In fact, this idea is wrong. Coral is a kind of lower animal - coelenterate. Each single unit of coral is called a polyp. Living coral polyps live in groups and can bud and reproduce. These buds do not leave the mother body and accumulate over time to form branch-like groups. There are many coelenterates in the sea, including jellyfish and sea anemones.

Once, a classmate asked me: "Are there any electrified fish in the sea?" I said: "Yes!" The classmate didn't believe it: "Water can conduct electricity, so not all fish in the sea will be electrocuted!" In fact, At the time I was just guessing. Later I learned that there are more than 500 kinds of fish in the world that can generate electricity, such as electric eels, electric rays, and electric catfish. When these fish encounter an enemy or prey in the water, they will immediately discharge electricity, causing the opponent to lose consciousness or run away in a hurry...

The ocean is closely related to the earth.

The ocean nourishes the trees, and when the sun shines on the sea surface, it produces air... About 71% of the earth is ocean, including the Pacific, Atlantic, Indian Ocean, Arctic Ocean, etc. Moreover, the land also evolved from the ocean. The rivers and lakes on the land are evidence of this.

After reading this book, I immediately traveled through time and space, and understood the mysteries of the ocean. It allowed me to understand the magical "magic" of nature and appreciate the unique charm of nature! Post-reading essay 4

I took my e-reader with me and read Zhang Jiajia’s book “Passing Through Your World” for several days, and then I said to my father twice, “I don’t like Zhang Jiajia’s book. , he wrote dirty words!” I said it again during breakfast today, and my father couldn’t help but get angry. He said, “If you don’t like it, don’t read it. This book has a high circulation, which is rare in recent years. Let me talk about one of them. Those who are familiar with "The Romance of the Three Kingdoms" will understand "Food". Zhang Jiajia has a deep literary accumulation. He truthfully records the swearing in life, and it is not his mouth that makes it dirty. Can’t you learn some reading comprehension? ”

When it comes to reading comprehension, my father gets angry easily. He always says that it’s time to switch from passive learning to active learning. I was going to Sanming to participate in a promotion tournament on the 28th. At noon, he made me cry. Dad doesn’t understand vocal music, but his ears are very good and he can tell when my lyrics are out of tune with the entire melody. My vocal teacher also pointed out that I didn’t sing well in the same place. Dad said don't imitate other people's original songs. They are the voices of others after they understand the songs. That night, I was promoted on the spot in the competition in Sanming. My father said that my singing was weird, and it was my expression and eyes that were in place that helped me. This was an exhibition competition. I didn't get the "promotion card" and didn't take part in the group photo. After singing, my uncle drove us to the train station and rushed back to Youxi because we were to be the host the next day. Thank you to Aunt Xiaofang from "Sanming Daily", she helped me take a lot of stage photos; and thank you to my uncle for sending them to me.

The 29th is the annual recital of the "Yue Ya'er Electronic Piano", and Teacher Zhang asked me to be the host. That night, I was very familiar with the situation and performed exceptionally well. Teacher Zhang, my father, and many parents praised me for my outstanding performance.

This summer vacation, I started learning piano. Among the children my father knows, Zhihan plays the piano the best. She is very devoted when playing, and the music she plays is very smooth and sounds very comfortable. Zhihan practices the piano the hardest, and she clearly demonstrates that "practice makes perfect". I want to learn from her. My father always told me that literature, music, art, and dance all have one thing in common, and that is "understanding." He hopes that if I learn my homework well, I can transform my "reading comprehension" ability into an understanding of songs and music scores; for children who play the piano well and dance well, I can transform their artistic understanding ability into As for the study of homework, he can relate things to study at any time.

I understand somewhat. As my father said, there is a feeling that "can only be understood but cannot be expressed in words". I believe that I can really sing well and play the piano well because I have the foundation of a lot of reading.

I am a quick learner of everything, but those things were all taught to me by others after they understood them. I hope to become my own understanding, write my own thoughts, sing my own voice, play my own mood, and beat my own heartbeat (haha).

In other words, this month will be over soon, and neither my godmother nor my aunt came to see me.

Whatever passes by my world is my help, and what is left behind is my own. After-reading essay Part 5

The book "The Bad Boy of Class 53" is the work of the famous literary writer Yang Hongying. The novel uses four lively and lovely boys, Fat Cat, Mickey Mouse, Bean Sprout, and Bugs Bunny, to form a happy, interesting and vivid campus story.

There are many interesting places in this book. For example, during their military training, one night they had to assemble urgently. Some of them wore the wrong clothes, some wore the wrong shoes, some remembered the wrong buttons, and some put their shorts on their heads like hats, etc. Very interesting.

Through the vivid and interesting stories that happened on campus, it reflects the joy, anger, sorrow, and joy of the students as well as the struggle, friendship, mutual help, and unity among them. It highlights the lively, clever and naughty characteristics of the bad boy.

I read this book and felt very good. These stories seemed to be happening around me. After-reading Essay Chapter 6

The story "The Rebirth of the Eagle" tells the story of a difficult and important decision that the eagle must go through in his life, that is, if he wants to survive, he must choose his future. Going through a very painful update process.

After listening to this story, I have a lot of emotions. On the one hand, I am surprised that the entire life of an eagle has such a process. Another, more important feeling is that this story shows that we are in the whole life. Various states of images in living and working environments.

We have choices throughout life.

First of all, maintain a peaceful mind. As the saying goes, "favours and disgrace don't surprise you." Especially what kind of attitude should you have when facing setbacks? Choose to face it or give up on yourself. If you give up, you may give up your entire life. If you face it bravely, you can seize the last chance and fly again. Although I am still working hard now, I must have ideals in mind, be brave in innovation, be down-to-earth, and avoid arrogance and impetuosity in my life and work. Only in this way can I grow and develop.

Secondly, growth requires repetition. Life is a process. During the whole process, we will face many repeated things, and we also grow in this repeated process. Just like the eagle in the story, you will encounter qualitative learning and growth twice in your life. The first time is to learn and grow in a blank space, while the second time is to wash away all the past, give up all the past, make a difficult choice, go through a painful experience, and renew again. The second time will be more painful than the first time, because there has been a past of glory and failure. More importantly, this time we have to work harder and strive harder to achieve the desired results. Just like our growth, every time there is accumulation in the past, but we have to break through the self in the past, which is another great challenge!

Third, growth is a painful process. There is an old saying: "Only when you have endured hardship can you become a master." After every real experience, you will grow unconsciously, and no matter how many difficulties you have experienced, you will be able to break through them. growing up. Just like the eagle's choice, although it is hard work, it is worth thirty years of life!

In "The Rebirth of the Eagle", we should learn from the eagle's vision and be far-sighted in doing things. One experience can buy thirty years of life. This is what we need, every time There must be a breakthrough in everything you do, otherwise you won’t do it. We must also be like eagles and fly bravely! Post-reading essay Part 7

Today, we studied the 26th lesson "Swallow Train".

This article mainly talks about the fact that swallows encountered trouble in Switzerland when they flew back to a warm place. The Swiss government used radio and television to ask people to find swallows and send them to the train station. A woman named Betty found the swallows and sent them to the train station. When she was still a child, she rescued more than a dozen swallows one day. Her face was red from the cold and her hands were stiff from the cold, but she didn't care because she wanted to get the swallows to the train as soon as possible.

The swallows were saved. They were chirping on the train, as if to say: Thank you for saving me.

By studying this text, I understand that we must learn from Betty and be a good and caring child. In the future, we must care for and protect small animals, and we must not let others harm small animals. .