"Protecting the biosphere is the common obligation of all mankind" PPT courseware download

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"Protecting the biosphere is the common obligation of all mankind" PPT courseware download

Part One: Introduction of New Course

Human activities have caused many adverse effects on the biosphere. What are the reasons for these phenomena? How should we, living on earth, treat the earth?

learning target

1. Understand the importance of sustainable development to the biosphere, pay attention to environmental issues, and form environmental awareness.

2. Understand the limitations of various resources in the biosphere.

Protecting the biosphere is the common obligation of all mankind PPT, Part 2: Learning new knowledge

1. It is urgent to protect the biosphere

Activity: Survey of land and water resources in the area and their use

1. What issues do you think should be paid attention to in the utilization of land resources in this region?

2. How to increase revenue, reduce expenditure and use water rationally?

According to research, more than 30,000 species of wild plants are on the verge of extinction in the world, and more than 1,000 species of vertebrates are threatened or on the verge of extinction.

According to statistics, surface fresh water used by humans has exceeded one-half of the total available amount. 60% of the world's regions face water shortages.

2. Humans can protect the biosphere

Carry out investigation, detection, evaluation and prediction of ecological environment quality

Formulate relevant policies and regulations

Establish nature reserves and implement large-scale ecological projects

Protecting the biosphere is the common obligation of all mankind PPT, the third part: Summary of this lesson

It is urgent to protect the biosphere

1. Current status of the biosphere: The living environment continues to deteriorate

2. Reasons: forest destruction, land desertification, population growth, etc.

Humans can protect the biosphere

1. Carry out investigation, detection, evaluation and prediction of ecological environment quality

2. Formulate relevant policies and regulations

3. Establish nature reserves

Protecting the biosphere is the common obligation of all mankind PPT, part 4: in-class exercises

1. Air quality monitoring uses different plants to monitor the outdoor atmosphere. The following harmful gases, sulfur dioxide, that can be monitored are ( )

A.Lichen and moss B.Sunflower and tomato

C. Tobacco and beans D. E. coli

2. Our country is one of the countries with serious land desertification, and urban sandstorms caused by land desertification are becoming increasingly serious. Since the beginning of spring, our city has been hit by sandstorms many times. Which of the following behaviors cannot cause sandstorms ( )

A. Cut down a large number of trees, destroy the forest, and significantly reduce the forest area.

B. Over-cultivation and grazing of grassland, destruction of vegetation

C. Due to intensified urbanization, engineering construction creates a large amount of dust

D. Industrial wastewater is discharged directly into the sea without treatment

Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, protecting the biosphere is the common obligation of all mankind PPT download, .PPT format;

For more information about the PPT courseware "Man's Responsibility in the Biosphere and Protecting the Biosphere is the Common Responsibility of All Mankind", please click on the "Man's Responsibility in the Biosphere ppt Protecting the Biosphere is the Common Responsibility of All Mankind" ppt tag.

"Protecting the biosphere is the common obligation of all mankind" PPT download:

"Protecting the Biosphere is the Common Obligation of All Mankind" PPT Download Part One: Classroom Activities Activities Investigate the land and water resources in the region and their utilization. What issues do you think should be paid attention to in the utilization of land resources in the region? How to increase revenue, reduce expenditure and reasonably...

"Protecting the biosphere is the common obligation of all mankind" PPT courseware:

"Protecting the Biosphere is the Common Obligation of All Mankind" PPT Courseware Part One: It is urgent to protect the biosphere. Investigate the land and water resources in the region and their utilization. What issues do you think should be paid attention to in the utilization of land resources in the region? How to increase revenue and reduce expenditure...

"Protecting the biosphere is the common obligation of all mankind" PPT:

"Protecting the Biosphere is the Common Obligation of All Mankind" PPT Part One: The Impact of Human Activities on the Biosphere. The Impact of Land Use on the Biosphere. Currently, among the many ecological and environmental problems in my country, land desertification is the most serious. There are currently 1.689 million desertified lands in the country...

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Update Time: 2024-10-22

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