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重庆大学版英语（顺序选修）英语10三年级《Topic 2 Solar System Unit 2 Space Further Reading Our Solar System》优质课ppt课件
1. What is the main idea of the text?
2. Which paragraph are the questions mentioned in?
1) How old is the earth?
2) How does the universe begin?
3) Is there any water in the Mars?
4) When did dinosaurs disappear?
5) Which animal is the most important one on the earth?
How life began on the earth
Passage structure
Main body
Para 1:
Para 2:
Para 3:
Para 4:
Para 5:
A widely accepted theory about the formation of the universe.
The formation of the earth.
The importance of water for life.
The development of plants and animals on the earth.
The arrival of humans and their impact on the earth.
Read the passage carefully and analyse its structure:
earth, atmosphere and water
life development
Human beings
Carefully Reading