"Cicada" PPT teaching courseware

Description

"Cicada" PPT teaching courseware

Part One: Information Treasure Bag

cicada's life

① The eggs live in tree holes 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 doubles in size and becomes a fourth-instar nymph.

⑤ In another two years, it will double in size, shed its skin and become a fifth-instar nymph, crawling out of the ground in summer.

⑥On the 6th summer after laying eggs, adults emerge.

⑦The adult insect only lives for about two weeks.

⑧Five or six days after emergence, the male cicada sings to lure the female to mate and wait for death.

Cicada PPT, Part 2: Preview Check

Read the text by yourself and understand the content of the text

1. What is this text mainly about?

2. Try to fill it in with one word. The cicada is pitiful. (Hint: It's pitiful, because its life only lasts a short summer, and it's pitiful that it is bored and nagged by others...)

3. According to the text, how do people’s feelings towards cicadas change?

word paradise

Words to know

larva (yòu) gymnastics (cāo)

weak (ruò), exert oneself (jié)

tremble (chàn) noisy (xuān huá)

Cicada PPT, the third part: detailed explanation of the text

1. There is a sentence in the text that is the key point (central sentence) of the whole text. Please find it and talk about your understanding of it.

2. "The cicada is a talented musician." How to understand this sentence?

3. Write: Following the example, you also write two sentences. (For example: Life is like a cicada, even if it is short, you must wait stubbornly.)

collaborative inquiry

1. There is a sentence in the text that is the key point (central sentence) of the whole text. Please find it and talk about your understanding of it.

"No matter if it's 90 years or 90 days, you just have to live well."

This sentence is the essence of the whole text. It is the key to rising from depression to rising, and is also the profound understanding of life triggered by the cicada. Whether it is about the annoying and noisy cicada, the weakness of the diseased cicada, or the short life of the cicada that has been buried in the ground for 17 years and only lived for one summer, it is because of this sentence that it seems to have meaning and brilliance. It also reminds us that no matter how short life is, we must live it well and give people an uplifting feeling.

2. "In the setting sun, when I think of the color of the autumn wind, I forgive the annoying noise." How do you understand this sentence?

The autumn wind is coming and the fruits are ripe. This is the harvest season, but for the cicada, which has been buried underground and waiting for 17 years, it means the end of life. Although life is short, the cicada waits persistently, and my respect for it arises spontaneously.

Cicada PPT, Part 4: Summary of the theme

The author's understanding of life was triggered by a small cicada. Through the understanding that the small and noisy cicada paid a price of 17 years for one summer, he then associated it with the human life process and reminded people: No matter whether life is short or long, there is always life. We should face it positively and live well.

Tips on writing

Popular science articles are articles that express existing scientific knowledge, scientific methods, and their scientific ideas and spirit through writing so that readers can understand them. Popular science articles often have a macro narrative style, that is, they inform readers of the mainstream views of the scientific community based on the macro context of scientific development.

spiritual enlightenment

The article describes how the cicadas resounded throughout the summer, which upset the author. However, after listening to his friend's narration, he developed a sincere respect for him and learned how to cherish life and live well. Through the study of this article, students can be guided to understand profound truths from small things and trigger their questioning and thinking about the meaning of life.

Cicada PPT, Part 5: Practice in class

1. The correct phonetic pronunciation of the dotted words below is ( )

A． shell(ké) humble(bēi) trace(hén) 聒聒(guō)

B. cuckoo (juān) continuation (yán) vulnerability (cuì) forgiveness (nù)

C． exquisite (zhì) convergence (liǎn) whirling (xuán) short (zhàn)

D. scattered (líng luò) soft (róu) meticulous (jù) resounding (chè)

2. Give phonetic notation to the polyphonic characters below and form words.

(1)Shell ( )________ ( )________

(2) Make ( )________ ( )________

(3)trembling ( )________ ( )________

(4) Fall ( )________ ( )________

Keywords: Free download of the Chinese PPT courseware for the first volume of the fourth grade of the E-education edition, Cicada PPT download, .PPT format;

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

Cicada chirping sound effects at night:

PPT background sound effect of cicada chirping at night. ..

"Cicada" PPT free download:

"Cicada" PPT free download content of the first part: Introducing the new lesson: Drinking the clear dew and sounding out of the sparse trees, the loud voice is far from borrowing the autumn wind. Cultural and sports knowledge: science sketches science sketches: also known as knowledge sketches, is a kind of use The style of the essay introduces a certain aspect of scientific knowledge.

"Cicada" PPT free courseware:

"Cicada" PPT free courseware Part 1: Introduction of new lessons Introduction of ancient poems: Show the verses of the ancient poem "Cicada". Teacher: Today I brought you a riddle. However, this riddle is a bit difficult. It is a poem. Please read it yourself first and guess what...

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Update Time: 2024-10-19

This template belongs to Chinese courseware E-education edition fourth grade Chinese language volume 1 industry PPT template

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