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Category | Format | Size |
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E-education edition Chinese language for sixth grade, volume 1 | pptx | 6 MB |
Description
"The Color of the Sea" PPT courseware
Part One: Introduction of New Course
Master new words
bó dài hè yǒng qī ma róng
Bo Dai brown swimming paint melts
Who knows why most people think the sea is blue?
Because the color of seawater is mainly caused by the optical properties of seawater, that is, the absorption, reflection and scattering of sunlight by seawater. We all know that sunlight is composed of seven colors of light: red, orange, yellow, green, cyan, indigo, and violet. The wavelengths of the seven colors of light vary from red to purple, and the wavelengths gradually shorten.
Among them, red light, orange light, and yellow light with longer wavelengths have strong penetrating power and are most easily absorbed by water molecules; blue light and violet light with shorter wavelengths have weak penetrating power and are most easily scattered and reflected when encountering pure seawater. And because human eyes are very insensitive to purple light, they often turn a blind eye, but are more sensitive to blue light. As a result, the ocean we see appears azure or dark blue.
The Color of the Sea PPT, Part 2: Text Analysis
How do you understand "What blue? What kind of blue? Does it have to be blue?"
The author raises doubts about "the sea is blue".
What color is the sea? Now read the text yourself and feel the color of the sea observed by the author!
Question: Who can tell us where the author introduced us to the color of the sea?
Answer: The author introduced us to the colors of the sea in four different places: the Bohai Sea, the Paracel Islands, Sicily, and Monaco.
Question: The colors of the Bohai Sea are so ever-changing! Why is the shallow sea yellow-brown? How is the text written?
Answer: "In shallow seas, the sand turns yellow due to high and low tides, wind and waves, and swimmers running around turning it up. When encountering strong winds and waves, it turns yellow-brown."
Question: How does the author know so many reasons? Where can we tell that the author has been there?
Answer: The author guessed it based on his usual observations.
Keywords: Free download of the Chinese PPT courseware for the sixth grade in the first volume of the E-education edition, download of the Color of the Sea PPT, .PPT format;
For more information about the "Color of the Sea" PPT courseware, please click on the "Color of the Sea" ppt tab.
"The Color of the Sea" PPT download:
"The Color of the Sea" PPT Download Part One Content: Information Treasure Bag The color of seawater is mainly caused by the optical properties of seawater, that is, the absorption, reflection and scattering of sunlight by seawater. Preview check: Think about it: What does the text mainly talk about? "The Color of the Sea" is...
"The Color of the Sea" PPT:
"The Color of the Sea" PPT Part One: First Reading Perception Knowledge Link Yellow Sea my country's Yellow Sea looks yellow-green. This is because a large amount of sediment carried by the Yellow River in ancient times dyed the sea water yellow. Red Sea The Red Sea between Asia and Africa, because of its very high water temperature,...
File Info
Update Time: 2024-10-02
This template belongs to Chinese courseware E-education edition Chinese language for sixth grade, volume 1 industry PPT template
"The Color of the Sea" PPT courseware Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
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