"Getting Information from the Map" People Live in Society PPT

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"Getting Information from the Map" People Live in Society PPT

Part 1: The size of the scale

The larger the scale, the smaller the range represented and the more detailed the geographical things represented;

The smaller the scale, the larger the range represented and the simpler the geographical things represented;

1. How to express the height of the ground

Reading pictures and answering

1. What is the altitude of A?

1500 meters

2. What is the altitude of place B?

500 meters

3. What is the relative height of place A and place B?

1000 meters

Altitude: The vertical distance a location on the ground is above sea level.

Relative height: The vertical distance one location is above another location.

2. Contour topographic map

Closed curves connecting points with the same altitude are called contour lines.

Features of contour lines:

1. On the same contour line, the altitude of each point is the same.

2. Contour lines

Large value - high altitude

Small value - low altitude

3. Contour lines

Densely distributed - steep slope

Sparse distribution - gentle slope

Obtaining information from maps PPT, part 2: Application of contour maps

(1) Site selection of reservoir dam:

Generally, it is selected in a canyon, and considering that the reservoir site should be selected in a "pocket-shaped" depression in a river valley or valley area. Because it is located in the upper reaches of the river, the terrain is open, making it easy to dam the river and not occupy a lot of farmland.

(2) Construction of roads and railway lines

Generally, walking along the contour line can reduce the difficulty of construction.

Construction of roads between EF:

Can reduce the amount of road construction work

The road is flat, making it easier for vehicles to travel

Not easy to cause soil erosion

Obtaining information from the map PPT, part 3: classroom feedback

Read the following contour topographic map and answer the questions:

1. The altitude of point A in the picture is _____ meters, and the altitude of point B is _____ meters; the relative height between them is _____ meters.

2. From the perspective of terrain location, A is _____; B is _____; C is _____; D is _____.

3. If a tourist plans to climb the mountain from two routes, M and N, which route is easier? Why?

Route M is easier. The reason is: the contour lines at M are sparsely distributed and the mountain slope is gentle.

4. Which of the four places A, B, C and D may have rivers (streams) passing through? Why?

C land. The reason is that it is located in a valley and is a water catchment area.

Get information from the map PPT, Part 4: Travel with a map

During the summer vacation, Chen Tianyu, who lives in Hangzhou, Zhejiang, plans to travel to Xiamen, Fujian with his parents. What maps do he need to prepare?

Let’s talk about it: Do you all know what types of maps there are?

Political district maps, tourism maps, urban area maps, traffic maps, historical changes maps, contour topographic maps, precipitation distribution maps, population distribution maps, satellite cloud maps, military maps...

Read the following paragraphs and talk about what kind of maps these three students need to choose?

Scenario 1 Our class is going to go to the mountainous areas for cross-country activities. What kind of plan needs to be designed in advance.

Scenario 2 A strong earthquake of magnitude 7.6 occurs in Pakistan. Do you know where this country is?

Scenario 3 If you travel to other places, what kind of map do you need?

Obtaining information from the map PPT, Part 5: Simulated tourism

If one day you want to travel to Xiamen, Fujian Province, what maps do you need to prepare?

Political district map, traffic map, urban area map, tourist map, topographic map...

Step one: Where is Xiamen?

What information can be learned from these two maps?

How would you choose a map? Tell me why.

Step 2: How to get to Xiamen?

Look at Figure 1-37, the traffic route map of China’s southeastern coastal areas, and answer question P19

Mode of transportation: train, bus, airplane

Choice: (consider time, cost, comfort level)

Step 3: How to find a given location?

Step 4: How to design a travel route?

Well-designed travel routes

Principle: Take the least repetitive routes and visit the most types of attractions.

hint:

1. Determine the location of the starting point, which is the starting point for designing the tour route;

2. There are no basic facilities such as hotels in each scenic spot;

3. Try to connect tourist attractions of different natures into circular or polygonal routes to avoid duplication of round-trip routes.

Keywords: free download of PPT courseware for seventh-grade history and society from People's Education Edition, PPT download of people living in society, PPT download of obtaining information from maps, .PPT format;

For more information about the PPT courseware "People Live in Society and Get Information from Maps", please click on the "People Live in Society and Get Information from Maps" ppt tag.

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Update Time: 2024-10-03

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

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