a cloud of dust
a solid globe
(2) What happened next?
exploded with fire and rock
produced water vapour and gases
(3) What did the water vapour and gases form?
A. The importance of water for life
Paragraph 2:
B. The development of plants and animals on the earth
Paragraph 3:
C. The formation of the earth
Paragraph 4: Paragraph 5:
the earth’s atmosphere
(4) What appeared as the earth cooled down?
Water appeared
water is important for the beginning of life on the earth.
Why is water so important for the beginning of life?
Because water allowed the earth to dissolve harmful gases into oceans and seas.
Stage2 The development of life
1.What life developed after water appeared?
Man had evolved from apes.
Put the order of development of life into a time line.
A. insects and amphibians appeared D
H
B. a solid ball
C. reptiles appeared
I. presence of water
E
J
J. mammals (including humans )appear
Why was the earth different from other planets? A It produced a lot of heat. B.The water remained. C Water disappeared. D.It was the oldest planet.
Why did the plants grow before animals came?
A Animals needed plants to protect them from the sun. B Plants provided oxygen for animals to breathe. C Animals could hide from hunters in forest. D It was easier for plants to grow.
small plants appears in water
2.What life developed in water next? Shellfish and all sorts of fish
3.What about the life on land?
green plants began to
Why was life able to develop on the earth but not on other planets? A The earth had a solid shape. B. The earth did not have harmful gases in its atmosphere. C The water stayed on the earth but not on other planets. D.The earth was not too hot and not too cold.
From the title, we can predict that the text may tell us the origin of life on the earth.
Skimming and match the main idea of each paragraph
Paragraph 1:
reptiles appeared dinosaur developed
6.What life developed after dinosaurs? mammals on land
7. What life developed after mammals? small clever animals
Stage 1 : The evelopment of the earth (para 1—3)
Stage 2 : The development of life (para 4—5)
Stage 1: The development of the earth
(1) After the Big Bang, what was the earth like?
D. A widely accepted theory about the formation of the universe
E. The arrival of humans and their impact on the earth
Detailed reading
This text can mainly divided into two stages
B
A
D. a cloud of dust
E. shellfish and other fish appeared I
C
F. dinosaurs appeared
G
F
G. small plants grow on the water
H. plants began to grow on dry land
grow on land
insects appeared
4. What life developed next on land?
amphibians on land and in the water
forests
5.What life developed after forests appeared?