人教版高中英语必修三unit4-reading(公开课).pptx

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,11/7/2009,#,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Astronomy?,Are you interested in,Step 1,A quiz on astronomy,第一页，共24页。,3.Earth is the only planet moving around the sun.,Part 1:True or False,The earth moves around the sun.,T,F,2.It takes the earth one day to move around the sun.,4.There is atmosphere on the,moon,.,5.The earth is the only planet in the solar system which has living creatures.,a year,8 planets,no,F,F,T,第二页，共24页。,Mercury,水星,Venus,金星,Earth,地球,Mars,火星,Jupiter,木星,Saturn,土星,Uranus,天王星,Neptune,海王星,第三页，共24页。,Do you know how the universe began according to chinese culture,?,In China,we all know that Pangu,separates the sky from the earth.,Lets brainstorm the following questions,第四页，共24页。,Chinese Legends(传说),Pangu separated the sky from the earth.,His whole body then turned into all kinds of things in the universe.,盘古开天辟地,第五页，共24页。,2.,Try to put the,right order of development of life,on the earth?,If you want to know more,please turn to Page 25,第六页，共24页。,Look at title and the pictures.Can you get some information about what we will learn from the text?,Big bang?,The evolution,(development),of life on the earth?,The text may tell us the _ of the earth and the _ of life on it.,How life begin on the earth,Pre-reading,Pre-reading,第七页，共24页。,How life began on the Earth,第八页，共24页。,Fast reading,Match the main idea with each paragraphy.,第九页，共24页。,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.,第十页，共24页。,Careful reading,Task one,(para 1),What is the widely accepted theory,in Para 1,?,The universe began with a Big Bang that throw matters.bodies.,第十一页，共24页。,a cloud of,_,Big Bang,a solid,_,slowly combine,the earth,_,down,it exploded loudly with,_,and,_,the earths,_,dust,ball/globe,fire rock,atmosphere,cooled,How did the earth come into being(,产生）,?,Task,two,(para 2),第十二页，共24页。,Why is water so important for the beginning of life?,？,paragraph3,dissolve harmful gases and acids into,the oceans and seas.,Because water allowed the earth to,第十三页，共24页。,What life developed after water appeared?,Paragraph4,small plants,green,plants,forest,early shellfish and all,sorts,of fish,insects and amphibians,reptiles,dinosaurs,mammals,第十四页，共24页。,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,第十五页，共24页。,1,2,3,4,5,6,7,Lets check whether we put the right order at first.,Are you right?,第十六页，共24页。,Task three,Please read the text again,then put the order of these sentences.,(exercise 2,page 27),Insects and amphibians appeared,The earth became a solid ball,Reptiles appeared.,The earth was a cloud of dust.,Shellfish and other fish appeared.,Clever animals with hands and feet appeared.,第十七页，共24页。,Dinosaurs appeared.,Small plants grew on the water.,Plants began to grew on the earth.,Water appeared on the earth.,The universe begin with a“big bang”,Mammals appeared.,第十八页，共24页。,Big Bang,4.5-3.8 billion,many million years later,2.6 million,Now,Time,Events,Big Bang,dust,solid globe,water appears,small plants,shellfish and fish,plants grow on the land,insects and amphibians,reptiles,dinosaur,mammals,clever animals,humans,life,earth,第十九页，共24页。,Sum up,The text may tell us the _ of the earth and after _ appear,the _ of life one after another on it.,formation,water,development,第二十页，共24页。,In the last paragraph,we know humans face seriously global warming problem,which is threatening our existence.Can you write something to call on us to protect our environment?,Discussion,第二十一页，共24页。,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,第二十二页，共24页。,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 importance of the problem and try their best to protect the environment and fight against pollution.,Besides,its a good ideas to plant trees to improve the environment.,We hope our earth will become more and more beautiful.,例文,第二十三页，共24页。,1.Learn the new words by heart,2.Listen to the recording of the text,and paraphrase the difficult sentences in the text.,Homework,第二十四页，共24页。,