必修三 unit_4_Astronomy Reading

Para. 1 Para. 2 Para. 3
Para. 4 Para. 5
The formation (形成) of the earth. The importance of water for
life. A widely accepted theory about the formation of the
How did life begin on Earth? Stage 1 The development of the earth Stage 2: The development of life in water Stage 3: The development of life on land
1. Insects and amphibians appeared.
beings were born. B. A brief introduction on the birth of the
universe and life on the earth. C. The “Big Bang” had a great effect on
the birth of the earth. D. The appearance of human beings was a
6. Plants began to grow on dry land. 1. Insects and amphibians appeared. 5. Reptiles appeared. 2. Dinosaurs appeared. 12. Mammals appeared. 11. Clever animals with hands and
The development of life
Stage 2: The development of life in water (1) What life developed after water
appeared?
extremely small plants
(2) What life developed in water next?
2. a cloud of dust
4. exploded with fire and rock
3. a solid globe
5. produce the carbon, nitrogen, water vapour, …
6. cooled down
7. water appeared
8. harmful gases were dissolved
11. Clever animals with hands and feet appeared
12. Mammals appeared.
11
10. The universe began with a “big bang”.
7. The earth was a cloud of dust. 3. The earth became a solid ball. 8. Water appeared on the earth. 4. Small plants grew on the water. 9. Shellfish and other fish appeared.
• Good morning/afternoon. I am Dr…. I am greatly honored to be here to give you a speech about the development of life”. …
Read the passage after class and
underline the language points you don’t understand in the text.
The theory of evolution
reading
How Life Began on the Earth
Skimming for general idea
Skimming
Reading Comprehension I
Analyse the structure of the passage. match the main idea with each paragraph.
feet appeared
Post-reading
Retell the text
Suppose you are Dr. … who studies astronomy. You are invited to give a speech to the school students about the development of life on “Earth Day” (April 22nd).
(2) What life developed after forests appeared?
reptiles on land dinosaurs on land
(3) What life developed after dinosaurs? mammals on land
(4) What life developed after mammals? small clever animals
2. Dinose earth became a solid ball.
4. Small plants grew on the water.
7
6
5. Reptiles appeared.
6. Plants began to grow on dry land. 3
1
7. The earth was a cloud of dust.
8
5
8. Water appeared on the earth.
9. Shellfish and other fish appeared. 10. The universe began with a “big
bang4”.
2 12
disaster to the earth.
Scanning for specific information
Detailed Reading Stage 1 The development of the earth
How did the earth come into being?
1. Big Bang (threw matter in all directions)
Pangu separated Nvwa created God created
the sky
盘古开天
humans
女娲造人
the world
上帝创世论
Are they true for the beginning of the life?
How was the universe formed? How did life begin on Earth?
early shellfish
all sorts of fish
Stage 3: The development of life on land
green plants on land
amphibians on land and in the water
insects on land
(1) What life developed next on land? forests
universe. The arrival of humans and their impact on the earth. The development of plants
and animals on the earth.
Skimming Reading Comprehension II
What’s the main idea of the text? A. A brief introduction on how human
Unit 4 Reading
How Life Began on the Earth
Pre-reading
1. Where do we come from? Or we can say: Who are our ancestors? monkey; ape[eip];
2. Do you know each religion or culture has its own ideas about the beginning of the universe?