新课标人教高中英语必修UnitAstronomyReading阅读.pptx

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1、进化(MTV).flv第1页/共19页第2页/共19页1 Do you know which one is not a mammal哺乳动物?2 Snakes and tortoises belong to _,while frogs and toads belong to_.A amphibians 两栖动物 B reptiles爬行动物 koala第3页/共19页Water Air Life?3 How Life Began on the Earth：Which came first?第4页/共19页How Life Began on the EarthReading.mp3第5页/共19

2、页Paragraph 1:Paragraph 2:Paragraph 3:Paragraph 4:Paragraph 5:A widely accepted theory about the formation of the universe The formation of the earth The importance of water for life The development of plants and animals on the earth The arrival of humans and their impact on the earthMatch the main i

3、dea of each paragraph.Fast reading 第6页/共19页True or false 1.According to a widely accepted theory,the universe began withbegan with a“Big Bang”,after which the earth was still a cloud of dust a cloud of dust for several billionyears.2.As the earth cooled down,water began to appear on its surface.3.Wa

4、ter allowed allowed the earththe earth to to dissolvedissolve harmful gases and acids,and it only appeared on the earth.4.As for mammals,they produced young generally by laying eggs.5.Clever animals with hands and feet,in their turn in their turn,are protecting the earth well instead of other less i

5、mportant animals.第7页/共19页News conference第8页/共19页Place：News conference 记者招待会Event：Ten astronomers answer questionsTopic：How life began on the earthRules:1.Girl group and Boy group 2.Five students of each group come to the front to compete for answering questions made by the rest students.Scores:Five

6、scores each time 第9页/共19页Gift 1 Gift 2 第10页/共19页1 What happened after Big Bang?2 What happened between 4.5 and 3.8 billion years ago?3 What were towere to make the earths atmosphereatmosphere?4 Why water was important for making it possible for life to develop?5 Did plants appear first or animals co

7、me first?And why?6Which turned up first:reptiles,mammals or amphibians?7 Whats the difference between mammals and reptiles?8 Did air appear earlier than water and life?9 What are human beings doing at present?第11页/共19页Gift 1 Gift 2 第12页/共19页第13页/共19页Gift 1 Gift 2 第14页/共19页Cheer up!All of you have do

8、ne a good job!We all know our earth is changing worse and worse,then what should we do to protect it?Now lets share Michael Jacksons feelings toward this problem!Earth song第15页/共19页Write a composition about protecting our earth.第16页/共19页第17页/共19页Astronomy is the scientific study of the universe and the heaven bodies(such as the sun,the earth,the moon),gas,and dust within it.天文学是对宇宙及其内部的天体、气体和尘埃所做的科学研究。第18页/共19页感谢您的观看。第19页/共19页