1. composition virus with epidemic situation as the topic can be counted as some kind of disease.

The hottest material in 2009: background of influenza A (H 1N 1). In March 2009, influenza A (H 1N 1) occurred in Mexico and the United States, and its virus was influenza A virus, subtype swine influenza virus H 1N 1, including swine influenza, avian influenza and human influenza. List of opinions 1. It is impossible for human beings to be kind to animals, and the harsh breeding environment provides opportunities for the growth and variation of viruses.

Humans don't care about the environment and abuse antibiotics. 2. The plundering and destruction of nature by human beings is becoming more and more serious.

Studies have proved that 66% of infectious diseases are spread by animals. 3. Theory of accelerated virus mutation: The acceleration of virus mutation and the leap of "species barrier" make the danger faced by human beings more and more serious.

Viruses are smarter than humans: viruses constantly look for human weaknesses and take advantage of them. With the continuous struggle between human beings and viruses, the fighting power of viruses is getting stronger and stronger.

5. The global public health prevention mechanism should be improved, scientific prevention needs global cooperation, and scientific and technological development needs to respect nature. 6. Climate change theory: Climate change promotes the occurrence and spread of animal infectious diseases.

Global climate change will certainly cause some bacteria to change, so that the danger of human beings is not only at the macro level, but also in the micro world. Key words of concern: man and natural environment, environmental protection, human crisis, global problems, public health introspection, biological virus, ecological plunder, man-made conspiracy, life cost. Focus interpretation: human beings are changing the earth, but behind these changes, they have caused benign qualitative changes and hidden dangers.

With the passage of time, many new diseases and terms have appeared. These seemingly unfamiliar but so familiar germs like SARS, avian influenza and influenza A (H 1N 1) suddenly hit like a hurricane, and all these are changing us. This social focus deserves our attention.

It involves man and nature, global issues, public health, ecological protection, environment, crisis, introspection, disaster, cherish, respect, shock, life, cooperation and harmony. [Application example] Title 1 Man and nature are the habitats of animals and plants, the origin of life and the source of everything for us.

Life is between heaven and earth, living in nature. We bravely walked from the wild age to the civilized century.

There is a great relationship between man and nature. In nature, human wisdom has created economic miracles, while ignorance and greed have left terrible consequences.

Now the earth has sent out painful * * *: environmental pollution, ecological deterioration and rampant viruses. All this is worth pondering.

SARS in 2003, avian flu in 2004 and influenza A today all make us think deeply about how human beings should treat nature. How do humans live in harmony with nature? Perhaps it is a simple answer: be kind to nature and live in harmony. Be kind to everything, just like being kind to our friends; Saving the earth means saving our home! The main idea of harmony between man and nature is that man and nature are interrelated, interdependent and harmonious.

Topic 2 Disaster In the face of the arrival of "influenza A H 1N 1", perhaps we think of a gray word "disaster". In fact, we have suffered countless disasters.

El Nino, greenhouse effect, global warming, tsunami, SARS, and now influenza A, every disaster here stings the fragile nerves of human beings. Why on earth is this?

Maybe it is the punishment of nature, maybe it is the punishment of the earth. What is it? Why are there so many disasters? We are considering this matter. After entering the industrial age, human beings plundered extensively, causing serious industrial pollution and obvious global greenhouse effect. The progress of mankind is based on plundering nature. Killing other species at will, seals in the Arctic Ocean are skinned, blue whales in the ocean are slaughtered, rare species in the mountains are cooked, and so on. Man's appetite is based on killing living things.

To sum up simply, environmental damage and ecological imbalance will lead to frequent disasters. Lower your head, arrogant human, and take a long-term view; Swallow your saliva, greedy human, and put your taste in a normal position, otherwise human beings can only bear the punishment of the earth themselves-disasters occur frequently.

Topic 3 introspection is the source of human progress. Lack of self-reflection is a common weakness of human beings, which is not limited to the arrogance of nature, but more importantly, there is always reason to excuse oneself for mistakes.

Abnormal climate, serious three wastes, epidemic diseases, frequent disasters and environmental deterioration caused by industry and modern social lifestyle have become hot topics and difficult problems all over the world. When people take actions one after another to solve various specific environmental protection problems, human beings need to really reflect on themselves.

Because of the arrogance of nature, environmental pollution and destruction have contributed to more bacterial variation. Human egoism and blind behavior of ignoring nature have become the sword of Damocles hanging over human heads. How many viruses mutate? How much effort will mankind have to make to reap the consequences? All this tells us that we must calm down and seriously reflect on the relationship between man and nature, the problems of natural environment, the relationship between industry and nature, and human weaknesses.

From the fundamental content, fundamental reason and fundamental relationship, we reflect on human philosophy and our humanity.

About the composition and epidemic situation of spring, 600 words 20 19 In the days near the Spring Festival, a kind of novel coronavirus suddenly appeared, so everyone had to stay at home and study, relax and have classes online. It turns out that a lively Spring Festival seems so monotonous.

Just wait. Waiting for the early arrival of spring. We can control the virus as soon as possible. At that time, it will be spring flowers, birds singing and flowers fragrant, spring scenery full of gardens, red flowers raining, thousands of trees blooming, grass flying, orchids blooming, willows fluttering and blue waves rippling.

Finally, after countless expectations, we are looking forward to this day. The epidemic situation has been basically controlled by medical experts in China, and spring has come quietly. Grandpa excitedly called and said that the countryside was also unsealed. One sunny day, my father took us to my hometown for a spring outing.

After lunch, I went to look for the footprints of spring. I walked leisurely. I walked to the rape field. Rape has an attractive golden color. Looking from a distance, it is dazzling. Maybe that's the color of spring. Rape also gives off a unique smell. Maybe that's the smell of spring. Hello, spring, I found you in the rape blossoms, and I also found you by the river. Holding hands, my sisters ran and sang, "Where is spring? Where is spring? Spring is in the green forest. " I started jumping when I was walking, and I was very, very happy. Now that spring has really come, it means that the days of fighting the epidemic are coming to an end. Spring is beautiful, but the process of protest is also very difficult.

Don't go out, don't go out to eat, be sure to wear a mask, always open the window for ventilation at home, wash your hands frequently, and eliminate the virus on your hands in snowy days. Don't touch the snow with your hands, because it may carry viruses in the air. Use disinfectant to disinfect after going out.

Now that the epidemic is under control, the unsealing is not relaxed, and zero increase is not zero risk. We can't let our guard down. Come on, we will win the battle.

There are many countries in the world, and naturally there are many kinds of people and souls. In the mysterious East, there is a great country called China, a beautiful soul called Chinese soul, and a proud human named China!

In 2020, the highly contagious pneumonia caused by novel coronavirus enveloped China, without the festive atmosphere, it became gloomy. Only busy angels in white stayed on the road. Doctors everywhere are ready to go, not afraid of death, mainly doctors. They have been standing in the front line of this "war". Zhong Nanshan, an academician of China Academy of Engineering, said: "Send the heaviest patients to me." Is it necessary for them to fight to the death side? Of course not, because they know that they are from China and angels in white in their compatriots' hearts.

During the epidemic, there was news: On the evening of June 28th, 65438, a man in black in his thirties sent 200 masks to the police of Tuzhu Street Police Station of Shapingba Public Security Bureau in Chongqing. The man only said, "Comrade policeman, you have worked hard! You are fighting in the front line of the epidemic, and you are more useful than us. " Although these are only 200 masks, they all reflect the morality of China people and the beauty of China's soul. When an ordinary person does something extraordinary, he will become extraordinary.

When the epidemic reached * * *, China stars also donated a lot. Louis Koo donated 6.5438+million yuan, Zhao Benshan donated 6.5438+million yuan to Wuhan in the name of Liaoning Folk Art Troupe, and Han Hong Charity Foundation raised 6.5438+0.65438+0.5 million yuan. People who don't know say that they are just raising their popularity and searching online in this extraordinary period. China people will say that they are showing their souls. Perhaps only in the most difficult times can you tell who is closest to you.

The people of China are so selfless, so beautiful and so proud.

The people of China are so United, so lovely and so commendable.

China people always hold their heads high, not because they are self-righteous, but because they have a soul worthy of singing and a motherland worthy of being loved.

Come on, angels in white! Come on in Wuhan! Come on, China!

4. In the third grade, look at the pictures and write an emergency fire-fighting composition. Once upon a time, Xiaojun's family kept many sheep. But on a quiet night, a fierce wolf ran to Xiaojun's sheepfold. That wolf is very cunning. Seeing many fat and strong sheep, it drooled, so it grabbed the rope with sharp teeth, made a hole in the pile of the sheepfold and took a sheep away.

The next morning, Xiaojun went to herd sheep as usual. I found a hole when I walked to the sheepfold, and I didn't care at that time. The next day, another sheep was missing, and he said to himself; I have many sheep, and these two sheep are just a drop in the ocean. Let's talk about it in a few days! In this way, the sheep are decreasing day by day. Two days later, Xiaojun came to the sheepfold and suddenly his eyes were blank-there used to be 18 sheep, and now there are only three left. He saw a pile of blood beside the sheepfold, and finally realized that everything was a bad thing done by the hateful wolf. Seeing fewer and fewer sheep, Xiaojun was anxious and strode to find grandpa. Grandpa said earnestly; It's never too late to mend. As long as the sheepfold is repaired now, everything will be in time. Xiaojun listened to grandpa's words and felt very reasonable. He quickly brought a stick and nailed it with a hammer. Since then, the sheep has never been lost.

This story tells us; If you make mistakes in your life, you should remedy them in time to avoid greater losses. The same is true of learning. If you make a mistake, correct it, and then the same mistake won't happen again.

5. Look at the pictures and write a composition. Your composition is the same as mine! When spring comes, Mother Yan builds a bird's nest under Xiaoli's house. Then she gave birth to four lively and lovely swallows! One morning, sunny, Xiaoli got up early and walked into the yard. I see the flowers are blooming, and no one will let anyone. The willow beside her is combing her beautiful long hair. She couldn't help saying, "How beautiful!" Suddenly, a swallow was enjoying the scenery in the yard and accidentally fell from the nest. At this time, Xiaoli just saw it and ran over, but the swallow fell heavily to the ground. Xiaoli said, "Oh, what a pity!" Just then, a terrible big cat came, with terrible eyes, which made her mouth water. The swallow trembled with fear. At this critical moment, several mice were drilled from the mouse hole. They're stealing! Hearing their cunning footsteps, the big cat turned and immediately ran after the mouse and disappeared.

Xiaoli saw that the big cat had gone away, and immediately ran to the swallow's side, gently picked up the swallow, took out the bandage from home and gently bandaged the swallow. She sang another lullaby, which made the swallow fall into a sweet dream.

After a while, mom and dad came back, and they put the swallow back in the nest together. Just then, Yan's mother came back, and she was saying thank you to Xiaoli and them!

Please give me some advice.

Me: Chen Ruhong

Venue: Class 5 (4), Bibo Experimental Primary School, Baiyun Street, Suzhou, Jiangsu, China.

Telephone: confidential!

6. Look at the picture and write a composition with 700 words "D". As soon as the school bell rang, a group of children quickly came to an empty meadow. Put one in each of the two schoolbags, and it will become the target. The children divided into two teams and the battle began. They will hold a fierce small football match here.

Look at that goalkeeper, blond, tall and thin, looking at enter the dragon on the court with rapt attention. He crouched half-way, bent over with his legs crossed, his hands on his knees, nervous and excited, ready to pounce on his opponent's attack. The substitute behind him was wearing a red sportswear, with his legs apart, his stomach upright and his hands behind his back, as if thinking: Hum, why hasn't this goalkeeper come off? Let me raise my hand on the court. The game is getting more and more fierce and the score is vacillating. One minute you won slightly, and the next minute I rose again, reaching a white-hot level. The blonde goalkeeper accidentally broke his right knee in the game, but he insisted on playing and refused to let the substitute play.

A tall uncle happened to pass by and his eyes were attracted by the ball game. He couldn't help sitting on the stone pier next to him and shouting, "Good shot!" "After a while, he said angrily," just a little, hey. "Needless to say, I know he is a typical super fan. The little boy next to him is also a small fan. He wore a snow hat and put his hands on his legs, watching the fierce ball game intently. The little girl with a doll and blonde hair is not so attentive, as if she has nothing to do with who wins or loses.

Another little boy in a red hat leans over, absorbed in the fierce scene on the field, for fear of missing a detail. There is a little boy next to him, leaning hard to the right and stretching his neck. The girl with a red bow felt that the boy in front blocked her view and simply stood up to watch. A pair of brothers, because they were late, just sat by the side, but even so, they still didn't affect their interest in watching the game and watched the wonderful game together. I don't know who brought a beautiful big white dog, but it has no interest in the game at all and closes its eyes on the grass.

The sunset dyed the sky red, and the wonderful little football match had to end. The children were exhausted by this time, and the laughter all the way faded away. The grass is as quiet as a lake.