"Cicada" PPT

"Cicada" PPT

Part One: Learning Objectives

1. Understand the author, clarify the explanation ideas, and summarize the text content.

2. Taste the language and learn the author’s writing method of using personification to enhance the vividness of the description.

3. Read the text carefully and feel the author’s diligent scientific spirit and meticulous and rigorous scientific method.

New course introduction

Hanging down to drink the clear dew, the sound of flowing water flows out of the sparse tung trees.

The reason for speaking loudly and staying far away is not to borrow the autumn wind.

Do the students know what this poem is about?

Cicada PPT, the second part of the content: word accumulation

Jin Xi ( ) Tu Yuan ( ) Bloated ( )

Gap ( ) Gnat ( ) Flatten ( )

hatch() fin() flea()

Rut ( ) Clay ( ) Digging ( )

Noisy ( ) Cymbal ( )

Cicada PPT, the third part: explaining the order

From what aspects did Fabre introduce us to cicadas? Tell us what each part explains and the order in which it is explained.

The full text is naturally divided into two parts.

The first part, "Cicada's Crypt," introduces the growth process of cicadas from larvae to adults.

This part can be divided into three levels.

The first level (Natural Paragraph 1) indicates that you “have a good environment to study the habits of cicadas”, and introduces the season of cicadas and the situation of cicadas in your own living environment.

The second level (natural paragraphs 2-7) is about the investigation of the cicada's burrow.

The third level (natural paragraphs 7-10) is about the investigation of the molting of cicada larvae.

The second part, "Cicada's Eggs," introduces the growth process of cicadas from egg laying to larvae.

This part can be divided into four levels.

The first level (natural paragraphs 11-13) introduces the cicada's egg laying, explaining the place, method and quantity of laying eggs.

The second level (natural paragraphs 14-17) describes the dangers encountered by cicada eggs. First, it explains that the number of eggs laid is so that there will be survivors when they are destroyed, and then introduces the destruction of cicada eggs by gnats and the destruction of cicada eggs by cicadas. Such ignorance.

The third level (natural paragraphs 18-24) introduces the hatching of cicada eggs and the activities of larvae. This level describes in detail the process of cicada larvae from molting, hanging, landing, and hiding underground.

The fourth level (paragraph 25-26) summarizes the cicada's life: "Four years of hard work in the dark, one month of enjoyment under the sun, this is the cicada's life." This not only corresponds to the introduction of the cicada's burrow, but also ends the explanation of the growth process of cicada eggs, and also provides a visual summary of the full text.

Cicada PPT, Part 4: Explanation Language

This is an expository article, but we don’t find it boring when reading it. Why?

"Cicada" is essentially scientific observation notes and investigation reports, and belongs to the category of scientific works. However, the author uses some literary language to comprehensively introduce the scientific data describing the object, so it has a certain literary color. Mainly manifested in the following aspects:

The first is to personify the cicada and give it human emotions and behaviors. For example, it describes the cicada laying eggs, describing the hardships that a "poor mother" goes through in giving birth to children, and also describes the abomination of cicadas that harm living creatures. The story about the development of a cicada from an egg shows the hardship of the four-year long journey that the cicada goes through. This gives the article a strong appeal, allowing readers to lament the growth of this little creature, and thus resonate with the author's argument and lyricism that "happiness is so hard-won yet so fleeting."

The second is to use literary language expression. For example, metaphors are used to express scientific phenomena that are generally unknown in a concrete way, and "performing a strange gymnastics" is used to compare the cicada's shelling process. Another example is to describe the observed situation in accurate and vivid language. It is written that the cicada "thrusts backward in the air", "turns the body, tries its best to straighten and open the wrinkled wings outwards, and uses the strength of the waist to lift the body as much as possible." Turn it over, return to the head-up singing position, hook its empty skin with its front paws, and then take the tail out of the sheath." The verbs in it accurately and vividly describe the entire process of the cicada's shelling.

The third is to write your own observation process with twists and turns, plots and descriptions, just like a short story, to stimulate readers' interest in reading.

Cicada PPT, Part 4: Thinking and Exploration

Why can the author explain so clearly the growth process of the cicada that we are blind to?

This is because the author has made long-term and detailed observations. Judging from the article, for example, a cicada has a life cycle of four years and sings in the sun for five weeks, which shows that the author's observation of cicadas is long-term and meticulous. It is the author's rigorous, persevering scientific spirit and comprehensive, detailed and in-depth observation methods that enabled him to master a large amount of first-hand information, allowing him to write such a vivid and accurate article.

Keywords: Free download of Chinese PPT courseware for the first volume of the eighth grade Chinese version of the People's Education Press, Cicada PPT download, .PPT format;

For more information about the "Cicada" PPT courseware, please click on the "Cicada" ppt tag.

"Three Aesop's Fables" PPT courseware:

"Three Aesop's Fables" PPT courseware Part 1: Review introduction Read the following words. Aesop's strings of lies, singing, deceit, feces, throat, consistent, setting traps, big mistakes, adulteration, disasters, lessons... ... Three PPTs from Aesop's fables, Part 2...

"Three Aesop's Fables" PPT:

"Three Aesop's Fables" PPT Part One: Aesop's Information Aesop: (about 620 BC - 560 BC), a famous philosopher and writer in ancient Greece. Aesop traveled around the world telling people his philosophical fables. He was later killed by the Delphians. ..

"Cicada" PPT teaching courseware:

"Cicada" PPT teaching courseware The first part of the content: Information treasure bag The life of a cicada ① The eggs live in a tree hole for about 10 months. ②The larvae crawl out in June and July. ③Two months later, the nymphs shed their skin for the second time and become second-instar nymphs. ④After one year, it will grow twice as big and become...