"Focus on the Urban Environment" PPT

Description

"Focus on the Urban Environment" PPT

Part One: Situation Import

In this class, let’s all pay attention to the environment we live in. Think about it, what kind of ecosystem do we live in?

learning target

1. List the changes and existing problems in the urban community environment.

2. Be able to design and implement activities to investigate changes in the community environment, draw preliminary conclusions, and communicate with the whole class.

3. Understanding and protecting the environment around me should start with me and every detail in life.

Pay attention to the urban environment PPT, the second part of the content: theme exploration

Explore theme one

Thoughts and Discussions

Please read the textbook pages P103-P105 and think about: What is an urban ecosystem? What characteristics does it have? What are the main types of pollution in cities in my country currently?

At present, the total number of cars in my country has exceeded 20 million, and Beijing has nearly 3 million cars. Car exhaust emissions have become the number one source of air pollution in some big cities, accounting for more than 50% of the total pollution sources.

Urban sewage and industrial wastewater contain harmful pollutants such as mercury, lead, copper, arsenic, cyanide, and trichloroacetaldehyde. Some pollutants cannot be degraded and will accumulate in the soil, causing serious consequences. Soil pollution reduces crop yield and quality, causes soil salinization, and worsens environmental sanitation.

Explore theme two

Investigate changes in the community environment

1. What positive changes have occurred in the community environment where you live?

2. What other hidden problems exist?

3. What suggestions do you have to further beautify your community?

4. As a group, formulate an “action plan to create a good community environment starting from me”

Pay attention to the urban environment PPT, the third part: training to meet standards

1. Which of the following statements about urban ecosystems is incorrect ( )

A. The main body of this system is human beings

B． One can adjust the balance of the system at any time

C. Compared with other ecosystems, it is most strongly affected by human activities

D. It is an artificial ecosystem

2. Which of the following is not an important cause of urban pollution ( )

A. Particulate matter such as smoke and dust B. Toxic gases such as sulfur dioxide

C. Solid waste such as construction waste and domestic waste D. carbon dioxide and water vapor

Keywords: Beijing Normal University version of eighth grade biology PPT courseware for the second volume free download, focus on urban environment PPT download, .PPT format;

For more information about the PPT courseware "People and the Environment Pay Attention to the Urban Environment", please click the "People and the Environment PPT Pay Attention to the Urban Environment PPT" tag.

"Focus on the Urban Environment" PPT courseware:

"Paying Attention to the Urban Environment" PPT Courseware Part One: New Lesson Introduction In this class, let's all pay attention to the environment we live in. Think about it, what kind of ecosystem do we live in? Learning Objectives 1. List the changes and existence of urban community environment..

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Update Time: 2024-12-04

This template belongs to biology courseware Beijing Normal University Edition Eighth Grade Biology Volume 2 industry PPT template

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