"How People Deliver Information" PPT Courseware

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"How People Deliver Information" PPT Courseware

write words

carousel and narrow

Narrow meeting hall plan

The Great Wall is one of the eight wonders of the world. There is a beacon tower every other section on the Great Wall. What role did it play at that time?

In ancient times, what other methods did people use to transmit information? So what do modern people rely on to convey information? How is the information conveyed?

Ancient ways of transmitting information:

1. Use migratory birds, especially pigeons and geese, as transportation tools

2. The way to make fillings, such as hiding in fish maw, cakes, steamed buns, etc.

3. With special sounds, such as bells, drums, firecrackers, etc.

4. With lights and firelight, such as Kongming lanterns, beacon towers, etc.

5. There are other signs, decorations, etc., such as signs to lure enemies.

Modern ways of transmitting information:

1. Wired communication transmission, such as telephone, fax, telegraph, television, etc.

2. Wireless communication transmission, such as walkie-talkies, BP machines, mobile phones, radios

3. Digital communication transmission, the most familiar, networked computers, digital TV

4. Paper communication transmission, such as letters, newspapers, etc.

Read the first part of the text silently and think about:

(1) How did people in ancient times transmit information for more than two thousand years? How do you continuously improve the way you deliver information?

(2) What is the new means of transportation?

(3) Have you ever written a letter? Based on the actual situation, tell me how you use letters to convey information to others? How do people use the postal system to deliver messages?

Read the second part silently and think about:

(1) What does earthshaking mean?

(2) Why is it said that people sending and receiving information through electromagnetic waves is an earth-shaking revolution in the history of communication?

(3) Later, what new problems did people discover and how were they solved?

Understand the sentences and talk about what explanation methods the author used.

(1) Telegraphs and telephones are becoming more and more popular. The cables that carry information are like narrow and crowded highways. They are often "traffic jammed", either busy or crossed.

(2) Scientists have come up with a method for laser communication: the communication capacity of a bundle of optical fibers is 250,000 times that of a copper wire, and a single optical cable can carry 100 million lines.

Postal system → electromagnetic waves → laser communication → "information highway" (network) → ... rapid development

Keywords: How do people convey information teaching courseware, Chinese courseware for fourth grade Chinese version A, volume 1, fourth grade Chinese slide courseware download, how do people convey information PPT courseware download, .ppt format

For more information about the PPT courseware "How People Convey Information", please click on the How People Convey Information ppt tab.

"How People Deliver Information" PPT Courseware 2:

"How People Transmit Information" PPT Courseware 2 Objectives of this lesson: 1. Be able to read the text correctly and fluently, and master the new words in this lesson. 2. Perceive the text as a whole and understand the several ways in which information is conveyed. I can read Popularity, Narrowness, Traffic Jam, Proposal...

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Update Time: 2024-11-22

This template belongs to Chinese courseware Version A, fourth grade Chinese language volume 1 industry PPT template

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