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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,*,Module III Unit 4,Astronomy,Whats the meaning of the word“,Astronomy,”?,I.Warming up,the science of stars;,the scientific study of stars and planets.,2.What words will you think of when we talk about this topic?,star,planet,the sun/moon/earth,solar system,恒星 行星 太阳 月球 地球 太阳系,3.How many planets are in the solar,system?,8,Pluto,Scientists now think Pluto is,too small to be called a planet.,4.Do you know the correct order of their distance to the sun?,nearest to,the sun?,farthest to,the sun?,5.,The names of eight planets.,Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,Neptune,1),水星,2),金星,3),地球,4),火星,5),木星,6),土星,7),天王星,8),海王星,Mercury,Venus,Earth,Mars,Jupiter,Uranus,Saturn,Neptune,6.Put them in correct order on P25.,Do you know their origin?,II.Pre-reading,Have you ever asked your mother,“,Mom,where do I come from,”?,2.Nearly everybody has this or that puzzles:,How do human beings come into being?,How does the earth come into being?,3.Do you know each religion and culture has its own ideas about the origin of the universe or life?Do you know them?,Chinese Legends(,传说,),Pangu separates the sky from the earth.,His whole body then turns into all kinds of things in the universe.,The,development,of the life,breath,winds and clouds,voice,thunder,left eye,the sun,right eye,the moon,blood,the rivers,veins,the roads,女,娲,补,天,Nuwa makes human beings,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,Scientific Theories,Famous scientists such as Newton,Einstein and Stephen Hawking had their own theory about the origin of,the universe.,III.Fast-reading,Do you believe in such stories?Are they based on science?,2.In this unit,well learn something more scientific.,3.Whats the title of the text?,4.From the title,we can predict that the text may tell us,the origin of life,on the earth.,How life began on the earth,7.Conclude the main idea of each paragraph.,1)A widely _ about the _ of the universe.,2)The formation of the _.,3)The _ of water for life.,4)The development of _ and _ on the earth.,5)The arrival of _ and their _ on the earth.,The text mainly tells us the _ of the,earth and the _ of life on it.,8.The main idea of Reading1.,Ex.1 on P27,theory,origin,earth,importance,plants,animals,humans,influence,/effect,formation,development,Detailed reading,This text can mainly divided into two stages,Stage 1:The development of the earth,Stage 2:The development of life,(para 13),(para 45),Stage 1:The development of the earth,(1)After the Big Bang,what was the earth like?,a cloud of dust,a solid globe,exploded with fire and rock,produced water,vapour and gases,(2)What happened next?,(3)What did the water vapour and gases,form?,the earths atmosphere,Water appeared,(4)What appeared as the earth cooled down?,water is important for the beginning of life on the earth,.,Why is water so important for the beginning of life?,Because water allowed the earth to dissolve harmful gases into oceans and seas.,？,Stage2 The development of life,small plants appears in water,1.What life developed after water appeared?,Shellfish and all sorts of fish,2.What life developed in water next?,green plants began to grow on land,insects appeared,3.What about the life on land?,amphibians on land and in the water,forests,4.What life developed next on land?,reptiles appeared,dinosaur developed,5.What life developed after forests,appeared?,mammals on land,6.What life developed after dinosaurs?,small clever animals,7.What life developed after mammals?,1.Who are the small clever animals with hands and feet?,2.Are they taking care of the earth well?Why?,?,Because they are putting too much carbon dioxide into the atmosphere,which,prevents,heat,from,escaping from the earth into space.,The earth may become too hot to live on.,Can you fill in the blanks?,2,3,4,5,6,7,8,9,10,1,small plants in water,shellfish and all,sorts of fish,insects,reptiles,amphibians,mammals,dinosaurs,humans,plants,animals,Green plants on land,forests,1,.,Insects and,amphibians,appeared.,3.The earth became a solid ball.,5.,Reptiles,appeared.,7.The earth was a cloud of dust,9.,Shellfish,and other fish appeared.,11.,Clever animals,with hands and feet appeared,2.,Dinosaurs,appeared.,4.Small plants,grew on the water.,6.Plants began to grow,on dry land.,8.Water appeared on the earth,10.The universe began with a,“,Big Band,”,.,12.,Mammals,appeared.,8,3,10,9,11,5,1,7,4,12,6,2,Can you put the order of development of life into a time line?,Ex.2 on P27,How life began on earth is one of the biggest puzzles that scientists found hard to solve.,What other puzzles are hidden in the passage?,Discussion,Ex.5 on P27,How does the universe(earth)form?,Why did the earth cool down?,Why did water disappear on other planet?,How did the dinosaur disappear?,summary,After the“big bang”,the earth was still just a cloud of _,it _loudly with fire and rock,which were _ to produce th
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