"Ecological Pyramid" PPT courseware download

Description

"Ecological Pyramid" PPT courseware download

Part One: Preview Check

1. Read the text freely, pay attention to the pronunciation of the characters, and read the text thoroughly.

2. Use your own words to describe what the text contains. Underline relevant sentences as you read.

word paradise

seaweed locust antelope suckling

fox basics nanny reclamation

hectares of punishment

Ecological Pyramid PPT, Part 2: Detailed explanation of the text

Use your own words to describe what is written in the text and divide the text into paragraphs.

One (1-2): Explain the interdependent relationship between living things.

Two (3-4): The composition of the ecological pyramid.

Three (5-6): The relationship between the ecological pyramid and humans.

Four (7): Explain that human activities must follow the laws of the ecological pyramid.

Browse the full text and find the sentences in the text that directly point out what the ecological pyramid is.

Scientists examined the food chain of the biological world and found that it resembled a pyramid with a large base and a large top, so they called this an ecological pyramid.

Study part one:

Read paragraphs 1 and 2 aloud and think about it while reading: What is a food chain? Please give an example.

1) Weeds are the most numerous organisms. Look at how many animals are eating it: locusts, inchworms, aphids, beetles and other insects...

Use examples to illustrate that weeds are the most numerous organisms.

(2) Beetles eat grass, spiders eat beetles, tits prey on spiders, and hawks eat tits.

Explain the biological chain using examples.

(3) For a beetle, one square meter of foraging space on the ground can meet its nutritional needs, while an eagle needs to forage within dozens of square kilometers to get enough food.

Give examples, make comparisons, list numbers

(4) In terms of quantity of these creatures, there are fewer beetles than grass, fewer spiders than beetles, fewer tits than spiders, and fewer eagles than tits.

Use examples to explain that the higher the level of organisms, the smaller the number.

Study Parts 2 and 3:

How does the text introduce us to the ecological pyramid?

Tell us what an "ecological pyramid" is using metaphors.

Why is it called the "ecological pyramid"?

Scientists have discovered that the biological chain is composed of a base and a top, which is very similar to a pyramid.

Ecological Pyramid PPT, the third part: summary theme

"Ecological Pyramid" is an explanatory article on popular science knowledge. It has novel content and smooth writing style. It integrates knowledge, science and interest. It introduces students to the relationship between living things and aims to remind people to love nature and protect the environment.

Tips on writing

The text uses explanatory methods such as "listing data, making comparisons, and giving examples," and introduces the composition and structure of the ecological pyramid in detail.

Expand and improve

Choose any aspect of the article, draw an ecological pyramid, and write the content of each level.

Ecological Pyramid PPT, Part 4: Practice in class

Distinguish carefully and form good words.

Receive ( ) Distinguish ( ) Dry ( )

Abuse ( ) Debate ( ) Bath ( )

Cable ( ) Braid ( ) Fuck ( )

olive ( ) petal ( ) rough ( )

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

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

"Ecological Pyramid" PPT download:

The first part of "Ecological Pyramid" PPT download content: The new lesson introduces the ecological environment short film Food chain: B species eats A species, C species eats B species, D species eats C species, this is a series of relationships between eating and being eaten. , called a food chain. Grass-fed..

"Ecological Pyramid" PPT:

"Ecological Pyramid" PPT Part One Content: First Reading Perception Word Integration Antelope Meaning: ①antelope; ②refers to antelope horns. Word group: antelope (antelope) (takin) Word identification: listen (listen) (listen) (listen to teach) Sentence creation: On the hillside, a group of antelopes were grazing leisurely. ..

"Ecological Pyramid" PPT courseware 2:

"Ecological Pyramid" PPT Courseware 2 Ecological Pyramid Big fish eat small fish, small fish eat shrimp, shrimp eat plankton, plankton eat green algae. There is a food chain in the biological world. When you look at the food chain, you will find an interesting phenomenon: the higher you go up the food chain, the more organisms...

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Update Time: 2024-11-20

This template belongs to Chinese courseware E-education edition Chinese language for sixth grade, Volume 1 industry PPT template

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