"The Origin and Evolution of Humanity" PPT download

Description

"The Origin and Evolution of Humanity" PPT download

Part One: Introduction of New Course

Human beings are the spirit of all things. They have particularly developed thinking organs, can work, and can make tools. How did we humans come into being?

learning target

1. Tell the story of how humans originated from forest apes, compare and observe the characteristics of humans and great apes, and describe the similarities between humans and chimpanzees.

2. Analyze and compare the various stages of human evolution, state the main characteristics of humans at each stage, and state the types and distribution of human races.

The Origin and Evolution of Humans PPT, Part 2: Learning New Knowledge

1. Great apes have very similar characteristics to humans

Types of great apes

Gibbon Orangutan Chimpanzee Gorilla

External form: flexible fingers

Body structure, similar bones, etc.

Facial expressions: rich expressions such as alert, happy, etc.

Behavioral performance: using tools, communicating, etc.

2. The transition from ape to human

forest ape

The common ancestor of humans and modern apes

People have found plant fossils such as oak trees in the same strata as ancient apes, and it is believed that these ancient apes lived in a forest environment.

Thinking: How did forest apes evolve into modern apes and humans?

Think about it: If a large amount of forest has been converted into a savanna, what impact will it have on the forest apes there?

3. Human evolutionary stages and races

Australopithecus: 4 million to 1 million years ago, walking upright, with a brain capacity of 450-530 ml, which is equivalent to modern great apes.

Homo habilis: 2 million to 1.75 million years ago, able to make and use tools, with a brain capacity of about 700 ml.

Homo erectus: 1.8 million to 200,000 years ago, able to use fire and tools, with a brain capacity of 800-1100 ml.

Early Homo sapiens (ancient humans): 200,000 to 50,000 years ago, with an average brain capacity of 1,400 ml, a variety of tools, and bone tools as relics.

Late Homo sapiens (New Homo): 50,000 to 10,000 years ago, the brain capacity was about 1500 ml, and primitive art appeared.

The Origin and Evolution of Humans PPT, Part 3: Feedback in class

1. Among the following animals, which one is not ape ( )

A. Chimpanzee B. Gorilla

C. Monkey D. Gibbon

2. Humanity originated from ( )

A. Primitive ocean B. Forest ape

C. Great ape D. Chimpanzee

3. The important basis for scientists to identify Australopithecus as the earliest primitive human rather than primitive ape is ( )

A. Able to use tools

B. The brain capacity is more developed than that of forest apes

C. Ability to walk upright on two legs

D. The skeleton is similar to that of modern humans

Keywords: Free download of Biology PPT courseware for the second volume of the eighth grade edition of Beijing Normal University, PPT download on the origin and evolution of human beings, .PPT format;

For more information about the PPT courseware "The Origin and Evolution of Human Beings and the Occurrence and Development of Life", please click the "The Origin and Evolution of Human Beings ppt The Occurrence and Development of Life ppt" tag.

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Update Time: 2024-07-29

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

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