必修三 4.5《unit 4 astronomy reading 》.ppt
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1、新课标人教版课件系列,高中英语 必修3-4.5,Do you know each religion or culture has its own ideas about the beginning of the universe?,1.Pangu separates the sky from the earth,2.Nuwa makes human beings,3.God created man.,The big Bang is used to describe a huge explosion that scientists believe happened around 15 billi
2、on years ago ,created our universe.,Whats the sientific idea?,Unit 4: Astronomy: the science of the stars,Solar system: is made up of the sun and the objects that orbit(盘绕) it. These include the nine planets and their moons(卫星), as well as comets(彗星), and meteors(流星).,Black hole: may eat everything
3、that comes close to them. Sometimes they throw out material. That is how new stars and planets develop.,Fast Reading(Read the first paragraph),How did water come into being on the earth?,Why is important to have water on the earth?,The explosion of the earth produced water vapor, which turned into w
4、ater when the earth cooled down.,It allowed the earth to dissolve harmful gases into oceans and seas.,Read the second and third paragraph, and finish the chart:,Small plants in water,_and all sorts of fish,green plants on _-,_ dinosaurs _,_,Insects(on land),_(on land /in water),develop,appear,appear
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