book 3 unit 4.ppt

1、Astronomy,A_ is a _ of science which studies the whole universe,_ the stars, planets, the moon and etc.,branch,including,stronomy,What is Astronomy?,How many planets circle around the sun in the solar system now? A. 9 B. 10 C. 8,地球 _ 木星 _ 火星 _ 水星 _,Earth,Jupiter,Mars,Mercury,Neptune,E.海王星 _ F.土星 _ G

2、.天王星 _ H.金星 _,Saturn,Uranus,Venus,The Solar System,Quiz,1,2,3,4,5,6,7,8,1.,Mercury,2.,Venus,Earth,3.,4.,Mars,5.,Jupiter,6.,Saturn,7.,8.,Uranus,Neptune,4.Which planet was removed from the solar system on Aug 24th, 2006? A. Venus B. Jupiter C. Pluto,3.Where did the life on the earth begin? A. In fire

3、B. In water C. In space,2.Which planet is the largest one in the solar system? A. Earth B. Jupiter C. Mars,Quiz,How did the earth and life come into existence?,Different _ have different ideas about it.,Question:,There exist so many planets in the universe, among is the most important.,the earth,whi

4、ch,religions cultures,come into being,In Chinese culture,_ separated the sky from the earth.,Pangu 盘古,sky,earth,_ made human beings.,Nuwa (女娲),In western countries: _ created the world and all living things.,God (上帝),Day 1: God spoke and separated light from darkness creating Day and Night Day 2: Go

5、d spoke and separated the water creating sky and ocean Day 3: God spoke and created dry land,The Biblical Account of creation,Day 4: God spoke and created the sun, moon and stars Day 5: God spoke and created living creatures in the air and sea Day 6: God spoke and created the land animals and man Da

6、y 7: God rested and blessed this day calling it Holy,India Brahma is the god first represented in the Hindu Triad. He is the creator of the universe and all living beings are said to have evolved from him.,the development,HOW LIFE BEGAN ON THE EAREH,Reading,Para 1,A widely accepted theory about the

7、formation of _,Para 2,The formation of _,Para 3,The importance of _ for life,Para 4,The development of _ _ on the earth,Para 5,The appearance of _ and their effects on the earth,the universe,the earth,water,plants and,animals,humans,Main Ideas,an explosion that _ matter in all directions,threw,- The

8、 universe began with a _,Big Bang,atoms stars other bodies,Para 1.,a cloud of dust,Big Bang,atmosphere,cooldown,water,explode,(Three verbs mammals,small clever animals,Paras4-5. The development of life,The Big Bang,water,small plants,insects and amphibians,reptiles on land,mammals,advanced mammals,d

9、inosaurs,Question: Are human beings taking good care of it?,_ heat from escaping from the earth into space.,.too much _ into the atmosphere, which,greenhouse_ global _,carbon dioxide,prevents,effect,warming,Problem,Result,The last sentence of the passage:,Any solutions to the problem?,too hot to live on,“ Whether life will continue on the earth for millions of years to come will depend o