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1、What are inthe pictures?,Unit4 Astronomy:the science of the stars,Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,Neptune,地球 _ 木星 _ 火星 _ 水星 _ 海王星 _,F. 冥王星 _ G. 土星 _ H. 天王星 _ I. 金星 _,Earth,Jupiter,Mars,Mercury,Neptune,Pluto,Saturn,Uranus,Venus,What interests you in astronomy?,Quiz:,1.Who wrote the boo
2、k The Origin of Species (物种起源) ?A.Issaac Newton B .Albert Einstein C. Charles Darwin,2.Who is famous for the theory of Black Hole theory? A . Hawking B. Newton C. Einstein,3 How many big planets are there in the Solar System?A . 7 B .8 C. 9,4. Which one belongs to amphibian(两栖动物）?A .frog B. snake C
3、.dinosaur,5. Which one belongs to reptile（爬行动物）?A. fish B .snake C .bird,8. On which planet are there lives at present ?A. the Venus B .the Earth C. the Mars,7. Which gas is the most important for life?A. carbon dioxide (CO2 ) B. oxygen(O2) C. nitrogen (N2),6. Which one belongs to mammal （哺乳动物）?A. d
4、inosaur B. dog C. fish,HOW LIFE BEGAN ON THE EARTH,Reading,explode surface method preventspreaddevelop astronomy,E.burst suddenly with a loud noise,A. outside of something,B.way of doing something,F.stop something happening,D.become wider;go to other places,C.grow up; take shape; become larger or mo
5、re complete,G.scientific study of the stars,Paragraph 1:,1. A widely accepted theory was put up with. What is it?,The universe began with a “Big Bang” that threw matter inall directions. After that, atoms began to form and combine to create stars.,A. The earths atmosphere was formed,B. Big Bang,C. T
6、he earth exploded and produced kinds of gases,D. Water appeared,E. The earth cooled down,F. A cloud of energetic dust,G. Slowly combine into a solid globe,1,2,3,4,5,6,7,Paragraph 2: Put these sentences into the right order.,Paragraph 3:,What does “Dissolve” mean?Which the following statements is tru
7、e?A. Unlike the earth, Mars had disappeared later.B. Water was to be fundamental to the development of life once water turned up. C. The continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. D. Water made it possible for life to develop.,“溶解”,wat
8、er,Plants in the water,Shellfish and fish,Insects and amphibians,Reptiles,Dinosaurs,Mammals,Plants on land,Man had evolved from apes.,A widely accepted theory about the formation of the universe,The formation of the earth,The importance of water for life,The development of plants and animals on the
9、earth,The arrival of humans andtheir impact on the earth,Task 1: Skimming,To seek Key words,Because water and life remained on the earth. Because plants provided oxygen for animals to breathe. Because dinosaurs died out long before human beings developed on the earth. The name is Pluto. Scientists n
10、ow think it is too small to be called a planet. Human beings cause global warming.,Task 3: Close reading,make full use of solar energy,plant trees,recycle rubbish,save water,purify air,What can we do to take care of the earth?,Discussion:,Whether life will continue on the earth depends on human beings.,Only if we care will we help; only if we help shall all be saved!,
