"Why are the flowers so red" PPT courseware 8

Description

"Why are the flowers so red" PPT courseware 8

Analysis description sequence

Explain things in a logical sequence from phenomenon to essence. The article begins by writing about the brilliant red and purple spring, laying out the phenomena, and then exploring the causes and essence of things.

Read paragraphs two to ten of the text and think about whether the order of these ten paragraphs can be reversed? Why?

No, because these paragraphs are arranged in logical order from primary to secondary, so they cannot be interchanged. The order of priority can be seen from the words "first", "also", "and" and "last" in the text.

Can the order of the first four reasons and the last two reasons of why flowers are so red be reversed? Why?

cannot. Because the first four reasons are arranged in order from internal conditions (internal) to external (external factors), they cannot be interchanged.

compared to

For example, in paragraph 10, the original wild species of peony was created by natural selection over hundreds of millions of years. The flowers are single-petaled and have a single color. However, after artificial cultivation, in the middle of the Northern Song Dynasty alone, many peonies were created from a single petal in just a few decades. Comparing the different postures of leaves, from pink to deep red, flesh red, and other beautiful colors, it highlights that artificial selection has greatly accelerated the plant evolution process and can achieve remarkable results in a relatively short period of time.

Column numbers

Paragraph 10, the history of artificial cultivation is only two to three hundred years. Specific figures accurately illustrate the short history of artificial cultivation, but there are many types and colors of flowers cultivated, highlighting the great contribution of artificial selection.

The author asks "Why are the flowers so red?" many times in the text. What is its function?

The center of the article description is clearly suggested.

It appears 7 times in the text, all in the form of a question. In paragraph 1 it is the general mention. The following paragraphs are set up with questions respectively, which serve to remind the angle and content of the explanation, and at the same time make the explanation level clear and in-depth step by step.

In rhetoric, this method is called spaced repetition.

Its function is to make the center prominent, the context clear, and the rhythm bright, adding to the beauty of the language of the article and increasing the artistic color of the article.

The title of the text is borrowed from the name of a famous song. Can you give similar examples? Tell me what are the benefits of formulating the question this way?

Judging from the song itself, "Why are the flowers so red" is widely sung, but the lyrics never answer this question from beginning to end. The title "Why are the flowers so red" can easily attract the attention of readers and stimulate their interest in reading.

in conclusion:

natural selection:

The process is slow and takes a long time to show its effect.

Manual selection:

The process is greatly accelerated and significant results can be achieved in a shorter period of time.

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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 11:

"Why Are the Flowers So Red" PPT Courseware 11 Independent Communication Overall Perception Read the text in the way you like and try to solve the following problems. 1. Pronounce the following dotted words: burn ( ) injury naked ( ) seed nectary ( ) secretion ( ) calyx ( ) flower (..

"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...

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Update Time: 2024-10-04

This template belongs to Chinese courseware Lu Jiao edition seventh grade Chinese language volume 2 industry PPT template

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