Learning objectives:

1. Know 5 new words and read 16 words correctly.

2. Be able to read the text with emotion and understand the profound sentences in the text.

3. Be able to tell the great changes that science and technology brought to mankind in the 20th century.

4. Through the study of this lesson, stimulate students' interest in loving science and exploring scientific mysteries.

Teaching focus:

Understand the great changes brought by science and technology in the 20th century.

Teaching difficulties:

Understand some meaningful words and sentences in the text.

Teaching preparation:

Courseware, collecting information about the achievements of scientific and technological development in the 20th century.

Teaching process:

First, create scenarios and introduce new lessons.

Students, when you press the remote control to watch TV, when you open the refrigerator to get drinks, when you dial the phone to talk to your classmates, when you log on to the website to check information, what can you feel? Write on the blackboard, understand.

Briefly introduce the author Lu Yongxiang and the writing intention of this article.

Second, read the text for the first time and feel it as a whole.

1. Please read the text freely, read the new words correctly and read through the text.

2. Read the full text silently. Thinking: What is the main point of this text? What paragraph is the text mainly written around? Draw it.

Third, grasp the key points and deeply understand the text.

1. Go straight to the center and guide questions. (Show: The 20th century is a century full of storms. This sentence is a paragraph of its own, which briefly explains the center of the article.

Students read the sentence together, and the teacher guides the students to question the sentence.

Read the second paragraph carefully. Guide students to understand rhetorical questions. Understand the difference between invention and discovery, one hundred years and millions of years.

3. Guide students to learn the third and fourth paragraphs by themselves.

Tips for self-study (showing courseware):

Use strokes: draw sentences that describe the living conditions of human beings in millions of years of history and the achievements of human scientific and technological development in the 20 th century.

Think carefully: In what way did the text introduce us to the achievements of human science and technology in the 20th century? What are the advantages of writing like this?

Group communication: share your learning results with peers in the group.

Students teach themselves, teachers participate in group learning, and patrol guidance.

The teacher asks for a report, and the students report their self-study gains.

Teachers' cameras guide students to understand the following questions:

Understand the farming society.

Understanding Key Sentences: The achievements of the 20th century can really be described by the spring breeze, which turned into rain, and thousands of pear trees blossomed at night.

Further understand the invention and discovery in combination with the fourth paragraph. (Courseware shows related pictures)

Explanations of experience comparison.

Teachers guide students to contact life and experience the changes and benefits brought by science and technology to human life.

Students cite other scientific and technological achievements. Courseware shows pictures of scientific and technological achievements. )

Instruct reading aloud.

Summarize the advantages of writing and explain the application of the method.

4. Learn the last paragraph of the text.

(1) simultaneous reading. Thinking: What kind of century do you think the 20th century is?

The 20th century is a new century.

Talk at the same table and fill in the blanks.

(2) Students think about the development of science and technology in 2 1 century and talk about their own whimsy.

Fourth, summarize the full text.

5. Run a supermarket.

1. Write down your whimsy and tell it to your parents or elders, and listen to their opinions and suggestions. Then write a short article "My Fantasy" with the explanation method learned today.

2. Make a newspaper clipping or manuscript called "Science and Technology World" for the whole class to evaluate.

Blackboard design:

A century of wind and rain

The 20th century is a century full of storms.

mankind

↙

↖

Technology → Discovery and Invention

Second lesson

Teaching objectives:

1. Guide to read the text with emotion.

2. Guide the writing of 12 new words.

3. Practice the topic "My Fantasy" and exchange comments with the handwritten newspaper "Science and Technology World".

Teaching preparation:

New word card

Teaching process:

First, guide the emotional reading of the text.

Second, guide the writing of new words.

Focus on: how to write "lai", "illusion" and "concealment".

Third, the whole class exchange exercises "Imagine the Future", comment on each other, and experience the explanation method and expression characteristics of the article again.

Fourth, a summary of the exchange exhibition of handwritten newspaper Science and Technology World.