There is only one lecture on the earth.

As a selfless people's teacher, it is inevitable to prepare a speech, which helps to improve teachers' language expression ability. What formats should I pay attention to when writing a speech? The following is just a lecture on the earth that I collected for you for your reference, hoping to help friends in need.

First, according to the curriculum standard, the textbook says

"Chinese Curriculum Standard" clearly points out: "When reading expository articles, we should grasp the main points and understand the basic explanation methods of the articles." It is to let students focus on the article, put themselves in the reading position, think more, feel more, understand the content introduced by the author, understand the writing method of the text, and thus understand the feelings expressed by the author.

There is only one earth is an exposition of scientific knowledge in the fourth group of People's Education Press 1 1 Volume. The study of this unit requires grasping the main content, thinking deeply in combination with reality, and doing our part for the bright future of our home with practical actions. As the first lesson of unit teaching, understanding the requirements of unit teaching in teaching plays a leading role in the study of this unit.

The lesson "There is only one earth" introduces the relevant knowledge of the earth from the perspective of human survival, expounds the truth that there is only one earth for human survival, and illustrates the important significance of protecting the earth's ecological environment. The text begins with what astronauts see when they look at the earth from a distance in space, and leads to an introduction to the earth. Then from the small size of the earth in the universe, the small range of human activities and the limited natural resources of the earth, it shows that the earth is facing the threat of resource depletion. Then it is proved by the research results of scientists that when the earth's resources are exhausted, there will be no second planet for human habitation; Finally, it is concluded that there is only one choice for human beings, and that is to protect the earth and its ecological environment carefully. The text has distinct levels and clear context, and the full text is scientific, artistic and ideological. While introducing scientific knowledge, it can stimulate readers' emotions and enlighten readers' thoughts.

This lesson is completed in two class hours. In the first class, students can learn new words and phrases, get a preliminary understanding of the main contents of the text and explain the writing order of the text. Learn to appreciate the beauty and smallness of the earth. The second lesson is to deeply understand the content of the text, understand the knowledge of the earth, "limited resources" and "immobile", and clarify the fact that there is only one earth. Inspire students to cherish and treat the earth well and establish environmental awareness.

Second, grasp the teaching materials and talk about the objectives, key points and difficulties.

Knowledge goal: through reading the text, it is clear that there is only one earth for human beings to live, and they know how to cherish resources and protect the earth's ecological environment.

Ability goal: to deepen the understanding of the text and put environmental awareness into action by thinking about problems in connection with reality. Experience the accuracy and rigor of the explanation language and learn the explanation methods.

Emotional goal: inspire students to cherish and treat the earth well, and establish environmental awareness from an early age.

Teaching emphasis: understand that there is only one earth for human existence, and know how to cherish resources and protect the ecological environment of the earth.

Difficulties in teaching: Thinking about problems with practice can deepen the understanding of the text and put environmental awareness into action.

Third, pay attention to the teaching method of learning situation.

Analysis of learning situation:

The students in our class have a certain ability of thinking and analysis. Group cooperative learning mode has been implemented for one semester. Most students dare to express their opinions and feelings according to their own reading experience and existing experience in communication and discussion, and can read the text with emotion in their own unique way according to their own understanding. These factors are very beneficial to the teaching of this class, especially the breakthrough of important and difficult points.

Teaching methods:

The focus of this course is to guide students to understand that there is only one earth in the process of independent reading and cooperation.

1, guide students to discuss in cooperation.

First, give guidance to group learning methods: read in groups, outline keywords to talk about feelings, and combine materials to talk about feelings. Read aloud to express your feelings.

(Through group discussion, integrate students' learning information resources, strengthen communication, explore together, and deepen understanding of the text content. )

2. Guide students to read aloud.

This article is an explanatory article to guide students to read this kind of works, in addition to injecting their own feelings like reading narrative works, they should also pay attention to reflecting the logical power of this kind of works. For example, "build an immigration base on Mars or the moon. However, even if these ideas can be realized, it is still a distant thing. How many people can you live? " In short, to emphasize "but" to attract people's attention to the following content, we can emphasize "even if", which makes people feel that whether this idea can be realized is still a matter of learning, and "how many people" should be emphasized, which makes people realize that even if the immigration base is built on Mars or the moon, there are very few people who can live. Middle school students realize that the earth is unique and human beings can't move. Several key descriptions in personalized reading articles can not only express students' personal feelings, but also resonate with the author.

Fourth, attach importance to the theory of ability.

This course sets up the concept of learning as teaching, pays attention to students' self-study ability, and learns through students' autonomy, inquiry and cooperation. Therefore, in legal research, it is arranged like this:

1, the key content of the group cooperative learning text: the natural resources of the earth are limited, and human beings cannot migrate at present. Group communication and understanding from the understanding of the text content (understanding of key words) to the supplement of the information found by the group, the group reports.

2. Perceptual reading. This article is an explanatory article to guide students to read this kind of works, in addition to injecting their own feelings like reading narrative works, they should also pay attention to reflecting the logical power of this kind of works. For example, "build an immigration base on Mars or the moon. However, even if these ideas can be realized, it is still a distant thing. How many people can you live? " In short, to emphasize "but" to attract people's attention to the following content, we can emphasize "even if", which makes people feel that whether this idea can be realized is still a matter of learning, and "how many people" should be emphasized, which makes people realize that even if the immigration base is built on Mars or the moon, there are very few people who can live. Middle school students realize that the earth is unique and human beings can't move. Several key descriptions in personalized reading articles can not only express students' personal feelings, but also resonate with the author.

3. Connecting with practical learning methods. In the study of the last paragraph of the text, let the students understand that we should carefully protect the earth and protect its ecological environment. Design exercise: What do you want to say to the earth, to mankind and to yourself? Only in this way can we deepen our understanding of the theme of "only one earth" in the text and internalize it into our own actions.

Fifth, learn according to the process.

(1) Review old knowledge and introduce new lessons: (2 minutes)

Last class, we learned "There is Only One Earth" together, and learned that the author of this text wrote it in the order of grasping the characteristics of things. What did he write about the earth? The students answered, and the teacher wrote on the blackboard:

Beautiful, small

limited resources

Immigrable

Therefore, astronauts traveling in space lamented: Our earth is so lovely and fragile at the same time! "

Last class, we appreciated the loveliness of the earth, knowing that the loveliness of the earth lies not only in its beautiful appearance, but also in its selflessness and generosity. So, why do you also say that the earth is too fragile? In this class, we work together in groups to study the text deeply.

(2) Group reading and cooperative inquiry (25 minutes)

The group is free to choose to learn that the earth is too fragile (the earth's resources are limited)

Immigrable (only)

Learning methods: read in groups, outline keywords or explain ways to talk about feelings;

Talk about feelings with materials.

Express your feelings by reading aloud.

Panel report:

(1) Find out where the "fragile earth" is. Guide students to understand "renewable resources" and "non-renewable resources" on the earth through keywords such as "exhaustion, abuse and regeneration".

(2) Report the consequences of uncontrolled exploitation of non-renewable resources with data. Pre-set courseware (how many years can coal mine, oil and natural gas be used)

Speak freely in communication to understand and read aloud. Read the third paragraph of the text emotionally. Compare the selflessness of the earth with the selfishness of human beings.

Students, the resources that took millions, tens or even hundreds of millions of years to form have been destroyed by greedy and ignorant people. How do you feel? Read aloud with emotion. (Sad, sad) Read freely, read by name, and read together.

(3) Report the consequences of random destruction and abuse of renewable resources in combination with data.

When talking about feelings in combination with the key words in the article, it randomly shows that "the water resources, forest resources, biological resources and atmospheric resources needed by human beings could have been regenerated and contributed to human beings for a long time." Could it have been taken off at once? Why? The teacher's summary of the word "originally" reflects the accuracy of the words used in the text and highlights that these resources can be regenerated in the past and cannot be regenerated now.

I have searched the information and pictures in the preview. If the report is not sufficient, the teacher will prepare by default: courseware, the destruction of forest resources, and the harm of chemical abuse. What changes are taking place on the earth every day? Courseware, students browse

Students, looking at these shocking pictures and materials, I seem to see the earth crying. Don't you want to say something? Man is so cruel that he is destroying himself.

Read aloud with emotion "What human life needs ..."

Listening to your reading aloud, Miss Li's mood is also very heavy. The resources of the earth are limited. If we use them properly, she can make a lasting contribution to mankind. However, due to the wanton destruction of mankind, the earth has been riddled with holes, which also poses a serious threat to mankind. However, most of us will also say: (Introduction) "Isn't the space in the universe huge? There are countless planets there. When the earth's resources are exhausted, can't we move to other planets? "

Please learn the immovable group report and present the courseware at random. Understanding "at least" means that the current research results are still limited to this range, and the situation beyond "40 trillion kilometers" cannot be determined, which reflects the accuracy of the explanation.

Yes! If the earth is destroyed by us, we have nowhere to go, so the author says (quotes) that "there is only one earth".

(3), reading the text, emotional sublimation (5 minutes)

Students, we only have one earth! But our dear Mother Earth is suffering from the ruthless destruction of our home-this water-blue planet is so lovely and fragile at the same time, and she needs us to protect her carefully together.

Please read the last paragraph of nature with your love for Mother Earth.

Blackboard: Cherish resources and protect the earth.

(4) Connecting with reality and expanding migration (8 minutes)

What do you want to say to the earth, to mankind and to yourself? What should we do to protect the earth and our beautiful home? Exchange; connect

A thousand words are summed up in one sentence-(writing on the blackboard) (students read together). There is only one sentence-(read to students together) for our children and grandchildren to remember-(read together).

Say blackboard writing: This blackboard writing design is both concise and focused.

In a word, the teaching design of "Only One Earth" is based on the spirit of the new curriculum standard, which makes Chinese teaching and information collection form a joint force, mainly adopts the group cooperative learning mode, fully embodies the autonomy of students' learning in cooperative learning, and finally devotes itself to the formation and development of students' Chinese literacy through reading aloud and expanding.