"Why are the flowers so red" PPT courseware 11

Description

"Why are the flowers so red" PPT courseware 11

Autonomous communication and overall perception

Read the text in your favorite way and try to solve the following questions.

1. Give phonetic notation to the following dotted words:

Burn ( ) wound Naked ( ) child

Nectary ( ) Secretion ( )

Calyx ( ) Flower ( )

Poppy ( ) Beauty Triangular ( ) Mirror

pistil ( ) abundant ( )

Article structure chart

why are flowers so red

internal reasons

1. Material basis (with or without pigment)

2. Physical principles (light wave reflection)

3. Physiological needs (protective effect)

4. Evolutionary perspective (development process)

External causes

5. Natural selection (effect of insects)

6. Artificial selection (adding new species)

A masterpiece of nature and the result of artificial cultivation

Autonomous communication and overall perception

Clarify your ideas and divide the structure of the article into hierarchies.

Part One (Paragraph 1): Put forward the center of explanation-why the flowers are so red.

Part 2 (paragraphs 2 to 10): Explain "why the flowers are so red" from different angles.

Part Three (Paragraph 1l): Summarize the reasons for the bonus and summarize the full text.

The title of the article was originally a song lyric. What rhetorical techniques were used? What are the benefits of using it as a title?

Used the rhetorical technique of asking questions.

It has three functions: first, it raises questions by grasping the well-known characteristics of flowers, which helps to reveal the center of the article; second, it sets up doubts and intrigues and is attractive; third, the main part of the article is divided into six parts. Each aspect explains why the flowers are so red, and each aspect begins with "Why are the flowers so red", which makes the article clear and fast-paced, adding artistic interest.

Summary of what you learned

This is a popular science explanatory article. The article introduces the scientific knowledge about why flowers are so red from different angles, focusing on explaining that the red color of flowers is formed by its own various conditions and needs as well as the effects of natural, artificial and other factors on it. The result praises human creative labor.

Classroom consolidation

1. Expository writing is a style of writing with ( ) as the main mode of expression. According to the description object and purpose of explanation, expository writing can be divided into ( ) expository writing and ( ) expository writing. This article is an ( ) explanatory text.

2. The meaning of the title "red" is ( )

The author______ is a ______ writer.

3. What famous ancient poems about flowers do you know?

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"Why are the flowers so red" PPT:

"Why Are the Flowers So Red" PPT Part One Content: Text Introduction Flowers in nature are colorful and colorful. Classmates, when you stroll in the garden and enjoy the beauty and fragrance given to you by orchids in spring, lotus in summer, chrysanthemums in autumn, and plums in winter, have you ever...

"Why are the flowers so red" PPT courseware 10:

"Why Are the Flowers So Red" PPT courseware 10 About the author Jia Zuzhang (19011988) is a famous biological science writer. A native of Haining, Zhejiang. His works are conveyed vividly and vividly in colorful literary ways. Scientific knowledge, mainly biology, realizes literature and...

"Why are the flowers so red" PPT courseware 9:

"Why the Flowers Are So Red" PPT courseware 9 Explanatory text Classification of things Description: introduce the shape, structure, characteristics, and functions of things Principle description: explain the meaning, principle, relationship, and evolution of things Explanation methods: define, classify, give examples, and make Compare, compare...

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Update Time: 2024-11-21

This template belongs to Chinese courseware Chinese version of eighth grade Chinese language volume 1 industry PPT template

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