"Natural Environment" The world where humans live together PPT

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"Natural Environment" The world where humans live together PPT

Part One: Recognize it

Exploration activity: What are the criteria for distinguishing these five types of terrain? What specific characteristics do they have?

Five basic terrain features

Plain: low altitude, broad and flat

Plateau High altitude with steep edges

hills lower altitude

Mountainous areas with higher altitudes

Mountains Mountains extend in long strips to form mountain ranges. The mountains are arranged in an orderly manner with clear veins, as if they are the "skeleton of the earth".

draw a picture

Please roughly draw the terrain profiles of mountains, plateaus, basins, hills, and plains. (Requirements: accurate and beautiful)

Natural environment PPT, part 2: Asia’s terrain

The terrain characteristics of a region can generally be described from three aspects: altitude and ground relief, and terrain type and distribution.

Characteristics of Asia’s land surface relief: Asia’s land surface is highly undulating

Characteristics of Asia’s terrain types: Asia’s terrain is diverse, with all five basic terrains, but mountains and plateaus are the main ones. and concentrated in central Asia

Topographic characteristics of Asia: The topography of Asia is highly undulating, with the terrain being high in the middle and low on all sides.

Topographic features of Asia:

1. The terrain in Asia is diverse, with all five basic terrains present, but mountains and plateaus are the main types, and they are concentrated in central Asia.

2. The terrain in Asia is highly undulating, with the terrain being high in the middle and low on all sides.

Natural environment PPT, part 3: Recognize it

Exploration activities:

1. What are the criteria for distinguishing these five types of terrain? What specific characteristics do they have?

2. Judgment: What terrain do the five photos shared by the teacher belong to?

Applications of Meridians: Dividing the Eastern and Western Hemispheres

Division of Eastern and Western Hemispheres:

It is divided by the meridian coil consisting of 20°W and 160°E.

Eastern Hemisphere: 20°W eastward through 0° to 160°E

Western Hemisphere: 20°W westward through 180° to 160°E

Natural environment PPT, part 4: China’s position in the world

1. China’s hemispheric location: ——— (Northern Hemisphere or Southern Hemisphere)

———(Eastern Hemisphere or Western Hemisphere)

2. China’s latitude position: Most areas are in ________ (latitude zone)

Most areas are in ________ (five belts)

3. China spans approximately ____ longitude. According to the longitude difference of 15°, the time difference is 1 hour. The difference between the easternmost and westernmost parts of China is ____ hours.

4. China is located in the east of ____ (continent) and on the west coast of ____ (ocean).

Natural environment PPT, part 5: Characteristics of sea and land distribution

Do the math

The total area of ​​the earth's surface is approximately 510 million square kilometers, of which 149 million square kilometers are land and 361 million square kilometers are oceans. What proportion of the Earth's surface area do land and ocean account for?

1. Three parts land, seven parts ocean

2. The distribution of land and sea in the world is very uneven.

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Update Time: 2024-09-08

This template belongs to History courseware People's Education Press History and Society seventh grade industry PPT template

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