B3U4 Reading必修三第四单元阅读公开课课件

1、Unit 4 Astronomy -the science of the stars,How Life Began on the Earth,Do you know any ancient idea about the beginning of the universe and life?,In Chinese culture,separates the sky from the earth.,Pangu,sky,earth,Nuwa,The Goddess _mended the heaven and created human being,In western countries: cre

2、ated the world and all living things.,God,According to Bible (圣经), God created the world and the first man, Adam (亚当) and the first woman, Eve (夏娃).,God created the world in seven days.,Religious Beliefs,HOW LIFE BEGAN ON THE EARTH?,Predict : What is the most possible style of the text according to

3、the topic?,Narration B. Exposition C. Argumentation D. Play,(记叙文),(说明文),（议论文）,(戏剧),Step 1: pre-reading,Step 1: Fast reading-Skimming,Read the passage quickly and find out:,1. What is the main idea of the text?,2. What is the order of writing in the text?,Step 1: Fast reading-Skimming,Read the passag

4、e quickly and find out:,1. What is the main idea of the text?,the formation of the earth B. The development of life on earth C. The development of life D. The difference between the earth and other planets,2. What is the order of writing in the text?,the spatial order B. The chronological order krn

5、ldkl C. The logical order D. The order of importance,空间顺序,时间顺序,逻辑顺序,事件重要性顺序,Main body,Para 1:,Para 2: Para 3: Para 4:,Para 5:,A widely accepted _ about the _ of the universe.,The formation of the_.,The _ of water for life.,The development of _ and _ on the earth.,The arrival of _ and their _ on the

6、earth.,1. Read the passage carefully , conclude the main idea of each paragraph,and analyse its structure:,Part 1: The universe,Part 2 : Life development on The Earth,Part 3: Human beings,theory,origin,earth,importance,plants,animals,Human beings,Influence / impact,Step 2: careful reading -scanning,

7、Reading Comprehension ,Who knows how life began on the earth exactly? A. Scientists. B. Astronomers. C. No one. D. Aliens elin(外星人). 2. What does “small clever animals” refer to? A. Insects. B. Reptiles. C. Dinosaurs. D. Humans.,3. The earth was different from the other planets in that_. A. a cloud

8、of dust was around the earth B. comfortable climate remained on the earth C. water remained on the earth D. carbon remained on the earth,4. The plants grew before the animals because they provide_. A. nutrients for animals to absorb(吸收) B. oxygen for animals to breathe C. necessary temperature for a

9、nimals to keep warm D. water vapour for animals,1. Big Bang,How did the earth come into being?,dust,globe,explode,atmosphere,7. the earth _,cooled down,8. water,Can you fill in the blanks?,4 _ 5,7 _ 8 9 _ 10,1 small _in water,2. _ and all sorts of fish,insects,reptiles,amphibians,mammals,dinosaurs,h

10、umans,plants,animals,3Green plants on _,6.Plant became _,plants,shellfish,land,forest,Post reading:,I. Review the passage, and fill in the blank; then try to explain the idea in group with the pictures and words given.,Big Bang,A cloud of _,Atmosphere,The earth,A solid _,water,The globe was _,dust,g

11、lobe,violent,CO2 ,nitrogen,vapor,The Formation of the Earth,The continued presence of _,Small_ in the water,_and all sort of fish,water,plants,shellfish,multiply,fill,encourage,dissolve,The Development of Life,Plant on _,Insect and_,Dinosaurs,The rise of Mammals,land,Reptiles,amphibian,Plants grew i

12、nto forest,make possible,humans came into being and spread all over the world.,Human beings,Are human beings very important ? Why did the author said they are not looking after the earth well?,The reason is that ,It from the earth into space.,prevents heat from escaping,people are putting carbon dio

13、xide into the atmosphere,the earth may become too .,The result is that ,hot,global warming -green house effect,It caused_,Ice in the North Pole _,Water level _.,The result is that ,rises,melts,The end of our world. What can we do to prevent the earth from becoming worse? Eg. What we can do is to . w

14、hat we can do is that. it is obvious that. I advise that ,solar energy,plant trees,recycle rubbish,prevent desertification,save water,purify air,What can we do to prevent the earth from becoming worse? What we can do is to drive less. I advise that everyone should take the public transportation as p

15、ossible as we can. What we can do is to prevent desertification. I advise that the government should lay down serious law on punishing the conduct of cutting trees randomly and unrestrictedly. It is obvious that we are faced with the problem of energy shortage. What we should do is to try to develop

16、 and use some clean and renewable energy.,What can we do to prevent the earth from becoming worse? 4. What we can do is that we should carry our reusable shopping bags while do shopping instead of disposable bags. 5. I advise we should protect the wild endangered animals by refusing to buy any produ

17、cts of them, which may help to keep the balance of the nature. 6. What we should do is to recycle the rubbish and industrial chemicals carefully, which may help to save energy, protect the earth from pollution and poison.,2. Why is it wrong to show films with dinosaurs and people together?,1. Why wa

18、s the earth different from the other planets?,Because the water remained on the earth.,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.,dinosaurs,Man had evolved from apes.,After the “big bang”,

19、 the earth was still just a cloud of _, it _loudly with fire and rock, which were _ to produce the_, water vapour and other gases. Then _ began to appeared on the earth. _ in water are considered to be the earliest lives on the earth. The O2 they supplied encouraged the lives of_. Slowly green plant

20、s grew on land, which were followed by _ like insects & _. When the plants grew into_, _ appeared. Then _ developed but disappeared later, which made the rise of a totally different animal,_, possible, and finally _ spread all over the world.,dust,exploded,in time,carbon,water,summary,The small plants,shell-fish and fish,land animals,amphibians,forests,reptiles,dinosaurs,mammal,humans,Design an activity on Earth Day,What the activity is about Why the activity is designed When and where to do the activity Who takes part in the activity What to be