Unit 4 Astronomy the science of the stars 课件1.ppt

1、Unit 4 Astronomy: the science of the stars,Warming up,medicine biology chemistry,astronomy physics mathematics,geophysics geology physics,biochemistry biology chemistry,Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), gas, and dust withi

2、n it.,astronomer,Solar system,1.Do you know how did the universe begin?,Each religion or culture has its own ideas about the beginning of the universe?,Pre-reading,Pangu separates the sky from the earth.,Pangu separates the sky from the earth,Pangu separated the earth and sky with an ax. After he di

3、ed, his breath became wind and cloud; his voice became thunder and his left eye sun and right one moon; arms and legs became edges and mountains; blood became rivers and tendon (筋脉) became roads; muscles became fields and hair stars; teeth and bones became metals, pearls and jade; sweat became rain.

4、,Reading,How Life Began on the Earth,Do you know the origin of the human beings ?,Man had evolved from apes.,Earth,How life began on the earth,The Big Bang,water,Plants in the water,Shellfish and fish,Plants on land,Insects and amphibians,Reptiles,Dinosaurs,Mammals,water,green plants on land,2,3 4,H

5、ow life began on the earth,Analysing,5 6 7 8,forests,shellfish and all sorts of fish,insects (on land) amphibians (on land and in water),reptiles (on land) dinosaurs (on land) mammals (on land) small clever animals with hands and feet human,small plants in water,1,A cloud of dust Combine into a solid ball Explodewith fire hes a man to _. A. count B. believe C. trust