"Amber" PPT download

Description

"Amber" PPT download, 28 pages in total.

Pre-class reading

Do students know what the crystal clear thing in the picture above is?

Amber is a transparent biological fossil that was formed 40 million to 60 million years ago. It is the resin fossil of plants such as Coniferous, Caicalenaceae, and Araucariaceae. The resin dripped and was buried underground for tens of millions of years. It was petrified under the action of pressure and heat. Some of them were filled with bees and other small insects, making them extremely beautiful. Amber is mostly formed from the petrified resin of Pinaceae plants, so it is also called "fossilized rosin".

word reveal

amber buzz rosin

Wipe the ooze out. Lean forward and lean back.

A burying surge

Lectures in detail

Class summary

"Amber" is a science essay. The author specifically describes the formation process of this strange piece of amber through rich imagination and reasonable speculation. It explains the scientific basis for imagining the formation of amber, stimulates our interest in science, and further increases the scientific knowledge of fossils.

Scientific essays are also called knowledge essays or literary expository essays. It uses the style of a short essay, that is, with the help of certain literary writing techniques, to express the scientific content vividly and vividly. Often use some explanation methods, such as listing numbers, defining definitions, making metaphors, giving examples, making comparisons, etc.

The scientific nature of scientific essays is very important. The content must be scientific, the information cited must be reliable, and the data must be accurate. Even if you rely on imagination and speculation, there must be reasonable scientific basis.

Class exercises

Keywords: Amber PPT courseware free download, Amber PPT download, .PPT format;

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

"Amber" PPT (Lesson 2):

"Amber" PPT (Lesson 2) Part 1 Content: Learning Objectives 1. Understand the content of the text, so that students can know the process of the formation and discovery of amber and its scientific value, and understand the rationality of the author's speculation and imagination. (Key Points) 2. Understand how scientists carry out collaboration...

"Amber" PPT (Lesson 1):

"Amber" PPT (Lesson 1) Part One Content: Learning Objectives 1. Recognize 12 new characters such as amber, amber, hum, and fat, and be able to write 15 new characters such as anger, roar, fat, swab, and so on. Understand words composed of new words. (Key points) 2. Understand the content of the text and clarify the narrative sequence of the text. ..

"Amber" PPT (second lesson):

"Amber" PPT (Second Lesson) Part One: Learning Objectives 1. Read the text emotionally and understand the main content of the text. 2. Understand the formation process of amber, the conditions necessary for its formation and its scientific research value, and stimulate students' interest in exploring the mysteries of nature. ..

File Info

Update Time: 2024-10-02

This template belongs to Chinese courseware The second volume of fourth-grade Chinese compiled by the People's Education Publishing House industry PPT template

Preview