The original text of the first volume of the sixth grade "There is only one earth"

According to the astronauts who were lucky enough to fly into space, when they roamed in the sky, they looked at the earth from a distance and saw a crystal-clear sphere with blue and white lines intertwined and covered with a thin layer of water-blue "tulle". The earth, the mother of human beings and the cradle of life, is so beautiful, spectacular and amiable.

However, compared with the vast universe, the earth is small. It is a planet with a radius of only over 6,300 kilometers. In the starry universe, it is like a boat. It's so big, it doesn't grow up.

The natural resources of the earth are also limited. Take mineral resources as an example, it is not given by God, but formed by geological changes over millions or even hundreds of millions of years. The earth is selfless, and it generously provides mineral resources for mankind. However, if mining is not controlled, it will accelerate the depletion of mineral resources on the earth.

The water resources, forest resources, biological resources and atmospheric resources needed by human life could have been regenerated and contributed to human beings for a long time. However, due to the wanton destruction of natural resources and the indiscriminate use of chemicals, human beings are not only unable to regenerate, but also cause a series of ecological disasters, posing a serious threat to human survival.

Some people will say, isn't there a lot of space? There are countless planets there. When the earth's resources are exhausted, can't we move to other planets?

Scientists have proved that there is no second planet suitable for human habitation at least within 40 trillion kilometers centered on the earth. Humans can't expect to move to other planets after destroying the earth.

Yes, scientists have put forward many ideas, for example, building an immigration base on Mars or the moon. However, even if these ideas can be realized, it is still a distant thing. Besides, how many people can live?

"Our earth is lovely and fragile!" This is the sigh of astronauts traveling in space and witnessing the earth.

There is only one earth. If it is destroyed, we have nowhere to go. If all kinds of resources on the earth are exhausted, it will be difficult for us to replenish them from other places. We should seriously protect the earth and its ecological environment. Let the earth better benefit our future generations!

The Teaching Goal of "Only One Earth" Teaching Design

1. Understand the knowledge about the earth introduced in the text. Through reading, thinking, discussion and other teaching methods, let students know that there is only one earth for human beings. Everyone should protect her carefully and receive initial environmental education.

2. Let students know how to protect the earth by understanding key words and combining practice.

Teaching focus

Understand that the range of human activities on the earth is very small, so we can't destroy the natural resources of the earth and move to other planets, so as to understand the meaning of the title of the article "There is only one earth", so that students can truly feel the importance of protecting the environment in real life and protect the earth with actions.

teaching process

First of all, introduce.

Students, the successful docking of Shenzhou-8 and Tiangong-1 has cheered everyone in China. Today, the teacher will take you on a space trip in shenzhou spaceship designed and manufactured by our country. Please close your eyes. Our spaceship is about to launch. Ok, the spaceship has risen into space. Please open your eyes and look at the beautiful scenery in space.

This is our beautiful earth. )

The earth is our mother. We live on the earth, but how much do we know about her? Today, let's take a look.

Listen to the tape, or the teacher will demonstrate the text.

Third, the overall analysis, perception and experience

After reading the text, the teacher asked you a question: How did the astronauts feel after seeing the earth in space? (Cute, fragile. )

1. Where can I appreciate the loveliness of the earth from the text?

Sentence analysis of taste words;

Guide students to master the words "water blue", "gauze clothing" and "crystal clear" and experience the beauty and magnificence of the earth.

[Writing on the blackboard: beauty]

2. Is the earth cute only because of its beautiful appearance? What paragraphs can you see from the article? (Students read relevant paragraphs)

Guide students to master the words "selflessness" and "generosity" so as to realize the richness and "kindness" of the earth's resources and let students realize the generosity of the earth. Understanding can selflessly give people limited resources, which is the greatest generosity.

Summary: The earth, the mother of human beings and the cradle of life, is so beautiful, spectacular and amiable. Do you think it is cute? Can you read your love?

Guide emotional reading.

(Students read the first paragraph together)

Comments: You read well. I seem to be in space, looking at the earth from a distance. On many dead planets, I saw ours at a glance. Mother Earth, crystal clear, beautiful and spectacular, is rich in resources and nourishes everything. I am really proud that we humans have such an amiable mother! After reading this, I think students should understand why we call the earth our mother. Only a mother can have such a heart to be tolerant and dedicated.

Yes, in the vast universe, only the earth is generous and selfless to human beings, providing us with a warm and comfortable living environment like a mother. In our hearts, he will always be so beautiful and spectacular, amiable and lovely. In our eyes, the earth is so powerful. Where is the fragility of the earth? Guiding group cooperative learning

The earth is small. Who can show the insignificance of the earth through his own reading?

[blackboard writing: small] (call the boys to read the second paragraph) (2) resources are limited. Who will talk about the finiteness of mineral resources on the earth?

[blackboard writing: limited resources]

Limited resources? Non-renewable: unrestricted mining? exhaust

Renewable: destroying natural resources at will? Unable to regenerate

Reckless abuse of chemicals? disaster

Guide emotional reading. (Name the girl who wants to read the third paragraph)

Summary: Facing the suffering that non-renewable resources are about to be exhausted and the threat that renewable resources are about to be destroyed, Mother Earth has become more and more fragile in repeated disasters.

Fourth, stimulate emotions and cause * * *

Who is exploiting without restraint, which makes the non-renewable resources exhausted? (It's a person)

Who is destroying natural resources at will, so that renewable resources cannot be regenerated? (It's a person)

Who is abusing chemicals at will, causing a series of ecological disasters? (It's a person)

Who is constantly destroying the environment and posing a serious threat to human survival? (or we humans)

Mother Earth is selfless. She generously provides all kinds of resources for mankind, while we humans are scarred and dying with evil hands.

Information provided by teachers:

Every day on our planet,/kloc-0.5 billion people breathe polluted air, and at least 800 people die.

Every day, 1500 tons of freon is discharged into the atmosphere, which seriously damages the earth's coat.

Every day, 1500 people on our planet die from diseases caused by drinking unclean water.

Every day, 12000 barrels of oil leak into the oceans on our planet.

Every day, 55,000 hectares of land on our planet become barren.

Every day, 55,000 hectares of forests on our planet are destroyed by fire.

Every day, 80 billion tons of water is exiled on our earth.

[Playing Courseware]

Shh, listen, do you hear Mother Earth moaning? What is she talking about? Did you hear the cry of Mother Earth? What do you want to say to Mother Earth at this moment? (comfortable)

(Freedom of speech)

The earth is too fragile! We should be careful to protect the earth!

[blackboard writing: it is everyone's responsibility to protect the earth]

However, some people don't think so. Many people don't think so about protecting the environment. Some people even say: Isn't there a lot of space? There are countless planets there. When the earth's resources are exhausted, can't we move to other planets?

The debate asked: Can humans migrate to other planets?

Students discuss clearly:

[Blackboard: No Immigrants]

Students read paragraphs 6 and 7 together.

Appreciate the sentence:

"Scientists have proved that there is no second planet suitable for human habitation at least within 40 trillion kilometers centered on the earth."

Q: Can the word "at least" be removed?

Clear: This sentence quotes the research results of scientists. The intuitive explanation of "40 trillion kilometers" is too large for human beings to reach. The word "at least" emphasizes that the current research results are still limited to this scope, and the situation beyond "40 trillion kilometers" cannot be determined, which reflects the rigor of the explanation. At the same time, "at least" means "at least", which further explains the distance, thus concisely and forcefully confirming that there is no second planet suitable for human habitation. Easy to understand and convincing.

Summary: a planet suitable for human habitation-there is only one earth!

A planet that can provide resources for mankind-there is only one earth!

A planet that can allow human beings to survive for generations-there is only one earth!

The earth, the magical mother who breeds hundreds of millions of creatures, we can only protect her. That's because ── we only have one earth! But our dear Mother Earth is being mercilessly destroyed. Our home-this water-blue planet is both lovely and fragile. She needs us to protect her carefully together.

Please read paragraphs 8 and 9 with your love for Mother Earth.

I think the word "Yao" in the penultimate sentence of the last paragraph should be changed!

Discuss how to modify it. (changed to "must")

Yes, it should be changed to "must", because careless protection of the earth is to dig your own grave!

A thousand words are summed up in one sentence-(writing on the blackboard) (reading together). There is only one sentence-let our children and grandchildren remember-there is only one earth.

Verb (abbreviation of verb) and the innovation of writing;

Seeing the disaster suffered by our mother earth, what can we do to protect the earth? (Students speak freely) (Action)

Want to say something to Mother Earth? Please write down your blessing! (Blessing)

Summary of intransitive verbs

After listening to the students' speeches, the teacher felt that you understood the suffering of Mother Earth. As a primary school student and the future builder of our country, we should make contributions to the protection of Mother Earth from now on, making our home's sky bluer, air fresher, clear rivers full of fish and shrimp, beautiful mountains and rivers, birds and flowers.