高中英语必修三unit4 reading公开课课件 .ppt

Lets enjoy an English song to cheer up!,Q1:Whats the name of the song?,God is a girl,Q2:In your opinion, does God have anything to do with (和有关) this world?,According to religion, God created human beings and our world.,How life began on the earth,Unit 4 Reading,Pre-reading,Warming up,Who are our ancestors? 2. Do you know how life began on the earth?,Lets brainstorm the following questions,Apes 类人猿,Do you believe the passage tell you the truth about the beginning of life? Why?,The beginning of the life,Pangu separated Nvwa created God created the sky humans the world 盘古开天 女娲造人 上帝创世论,Try to put the right order of development of life on the earth? ? ? If you want to know more, please read the text. (Learn new words and expressions.),How life began on the Earth,Para. 1 The formation(形成) of the earth. Para. 2 The importance of water for life. Para. 3 A widely accepted theory about the formation of the universe. Para. 4 The arrival of humans and their impact on the earth. Para. 5 The development of plants and animals on the earth.,Fast reading,Find out each paragraphs idea,Para 2,Several billion years after the “ big bang ”,between 4.5 and 3.8 billion years ago,The earth was still just _. Then the dust settled into a _. Then the earth became so _ and explode to produce its_.,solid globe,violent,atmosphere,Careful reading,a cloud of dust,Fill in blanks,Para 4,Many millions of years later,The first small plants on the surface of the water produced_ .,Early _ and all sorts of fish appeared.,_ began to grow on land.,followed by_ , some are _. others, called_,oxygen,shellfish,green plants,land animals,insects,amphibians,Many millions of years later,When the plants grew into forests, _appeared.,After that, some _, called dinosaurs developed.,The disappearance of dinosaurs made possible the rise of _ on the earth.,reptiles,huge animals,mammals,About 2.6 million years ago,Now,Humans produce too much carbon dioxide , making the earth too hot to live in.,Para 5,After the clever animals (humans) became important on the earth, what happened?,Answer question,1,2,3,4,5,6,7,Lets check whether we put the right order at first. Are you right?,Intensive reading,1.Why was the earth different from other planets ?,A. It produced a lot of heat. B. The water remained. C. Water disappeared. D. It was the oldest planet.,2. Why was life able to develop on the earth but not on other planets ?,A. The earth had a solid shape. B. The earth was not too hot and not too cold. C. The earth didnt have harmful gases in its atmosphere . D. The water stayed on the earth but not on other planets.,3. Why was it necessary for plants to grow before animals ?,A. Animals needed plants to protect them from the sun. B. Animals could hide from hunters in forests. C. It was easier for plants to grow. D. Plants provided oxygen for animals to breathe.,4. What problem is caused by human beings ?,A. They cause global warming. B. They exist everywhere on the earth. C. They find new methods of growing crops. D. They enjoy hunting and fishing.,Sum up,The text mainly tells us the _ of the earth and after _ appeared, the _ of life one after another on it.,formation,water,development,In the last paragraph, we know humans face seriously global warming problem, which is threatening our existence(生存). Now just suppose you were the earth, and a reporter is interviewing you, what would you advise human beings to do? Areporter, B Mr. Earth A: Good afternoon, Mr. Earth, how are you? B: A: Are you happy? Why or why not? B: ,Post-reading,Interview,1. Learn the new words by heart 2. write a passage to call on us to protect our environment.,Homework,Thank you! Good-bye!,The earth we live in is becoming more and more terrible, so we must take measures to deal with it. Firstly: Secondly: Thirdly: We hope the environment will become more and more beautiful.,Sample,Can you write something to call on us to protect our environment ?,The earth we live in is becoming more and more terrible, so we must take measures to deal with it Firstly, the government should pass laws to prevent people and factories from polluting the environment. Secondly, everyone should realize the importanc