人教版高中英语必修三课件 Unit 4 Astronomy the science of the stars-- Reading1课件

1. Why was the earth different from the other planets?
Because the water remained on the earth.
2. Why is it wrong to show films with dinosaurs and people together?
Para 5: HTthhueeimrairmarnipvaabclteooifnnhguthsmeaenasrtahn.d
Detailed reading
Put the order of development of life into a time line.
• （8 ）A Insects and amphibians appeared. • （1）0 B Dinosaurs appeared. • （3）C The earth became a solid ball. • （5）D Small plants grew on the water. • （9）E Reptiles appeared. • （7）F Plants began to grow on dry land. • （2）G The earth was a cloud of dust. • （4）H Water appeared on the earth. • （6）Shellfish and other fish appeared. • （1）J The universe began with a “Big Bang”. • （12）K Clever animals with hands and feet appeared. • （11）L Mammals appeared.
Some animals (amphibian & insects) came to land.
Repammals
Man had evolved from apes.
They developed new methods of growing food, hunting and moving around. As time went by they
covered the earth and have become the most important animals on the planet.
After the “big bang”, the earth was still just a cloud of ___d_u_s_t_, ite_x_p_lo_d_e_d_loudly with fire and rock, which were _i_n_t_im__e_ to produce the__c_ar_b_o_n___, water vapour and other gases. Then _w_a_te_r____ began to appeared on the earth.
How life began on the earth
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?
After the “Big Bang”, the earth was full of water.
Original cells appeared in the ocean.
The cells in the water began to separate. Marine animals came into being.
Unit 4 Astronomy: the science of the stars
盘古开天辟地
女娲补天造人
In the western culture, who creates everything in the world?
HOW LIFE BEGAN ON THE EARTH?
1. What is the main idea of the text?
Passage structure
Carefully Reading
Read the passage carefully and analyse its structure:
A widely accepted theory about the
Para 1: efaormtha,tiaotnmofotshpehuenrievearsned. water
After reading the passage, discuss the following questions.
1. Why was the earth different from the other planets? 2. Why is it wrong to show films with dinosaurs and people together? 3. What problem is caused by human beings?
Because dinosaurs died out long before human beings developed on the earth.
3. What problem is caused by human beings?
Human beings causes global warming.
Main body
Para 2: The formation of the earth.
Para 3: lTihfee idmepovretaloncpemof ewnatter for life.
Para 4: The development of plants and animals on the earth.