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,*,*,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,*,*,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,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,Unit 4,the science of the stars,Unit 4the science of the stars,solar system,太阳系,solar system太阳系,Sun,Venus,Mercury,Mars,Jupiter,Saturn,Earth,Pluto,Neptune,Uranus,But scientists now think Pluto is too small to be called a planet.,SunVenusMercuryMarsJupiterSatu,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,The names of eight planets.Me,N,u,wa made humans.,Nuwa made humans.,Pangu separates the sky from the earth.,Pangu separates the sky from t,Other legends about the beginning of universe.,Other legends about the beginn,Reading,HOW LIFE BEGAN ON THE EARTH,Reading,Skimming,Whats the main idea of the passage?,The text mainly tells us the_,of the earth and the _,of life on it.,formation,development,SkimmingWhats the main idea o,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.,theory,origin,earth,importance,plants,animals,humans,influence,/effect,Scanning,Conclude the main idea of each,1.What is the original earths atmosphere made up of?,2.What is the fundamental to the development of life,and why?,3.Which kind of life-being first appeared on the earth,plants or animals?,Intensive reading,Read the passage quickly to answer the following questions.,Intensive readingRead the pass,carbon,nitrogen,water vapour,and other gases,2.what is fundamental to the development of life?,Water.Because it allowed the earth to dissolve harmful gases and acids into the oceans and seas.,1.What is the original earths atmosphere made up of?,carbon,nitrogen,water vapour,3.Which kind of life-being first appeared on the earth,plants or animals?Why?,At first,small plants began to appear on the surface of the water,and they produce oxygen,which encouraged the later development of early shellfish and all sorts of fish.,3.Which kind of life-being fi,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,Can you fill in the blanks?234,Lets review the evolution of life on the earth.,Lets review the evolution of l,1.Big Bang,2.,a cloud of dust,3.,A solid globe,4.exploded with,fire and rock,5.produce the water vapour,carbon dioxide-,atmosphere,How did the earth come into being?,1.Big Bang2.a cloud of dust3,6.cooled down,7.,water,appeared,8.Dissolved harmful,gases&acid,6.cooled down7.water appeare,We have only one earth!,We have only one earth!,We are making the world,better,.,We are making the world,worse,.,A,B,Discussion,We are making the world better,developed new methods of growing food,(1)What humans developed?,developed new methods of hunting,developed new methods of moving around,developed new methods of gro,(2),But they are not taking care of the earth very well.,What problem are humans causing?,putting carbon,dioxide into the atmosphere,the earth,may become too hot,(2)But they are not taking ca,Lets,take part in,the activities to save the earth!,Use,the following words or phrases to help you:,prevent from harmful,global warming,carbon dioxide,in turn depend on,as a result atmosphere,Lets take part in the activit,Homework,Finish the exercises on page28,Write a short passage about how the earth came into being,Homework,