河北省涞水波峰中学人教版高一英语必修三课件：UNIT4 ASTRONOMY：THE SCIENCE OF THE STARS READING （共24张PPT） .ppt

1、Astronomy?Are you interested inStep 1A quiz on astronomy3.Earth is the only planet moving around the sun.Part 1:True or False1.The earth moves around the sun.TF2.It takes the earth one day to move around the sun.5.There is atmosphere on the moon.4.The earth is the only planet in the solar system whi

2、ch has living creatures.a year8 planets noFFTMercury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1.Do you know how the universe began according to Chinese culture?In China,we all know that Panguseparates the sky from the earth.Lets brainstorm the following questionsChinese Legends(传说)Pa

3、ngu 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2.Try to put the right order of development of lifeon the earth.If you want to know more,please turn to Page 25big bang mammals humans reptiles dinosaurs amphibians Look at title and the pi

4、ctures.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-readingPre-reading Fast reading Match the main idea with each paragraph.P

5、ara.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.Careful reading Task one(para 1)What is

6、 the widely accepted theory in Para 1?The universe began with a Big Bang that throw matters in all directions.a cloud of _ Big Banga solid _slowly combinethe earth _ downit exploded loudly with _ and _the earths _dustball/globefire rockatmospherecooledHow did the earth come into being(产生）?Task two(p

7、ara 2)Why is water so important for the beginning of life?paragraph3dissolve harmful gases and acids into the oceans and seas.Because water allowed the earth toWhat life developed after water appeared?Paragraph4small plantsgreen plants forestearly shellfish and all sorts of fishinsects and amphibian

8、s reptilesdinosaursmammalsAbout 2.6 million years agoNowHumans produce too much carbon dioxide,making the earth too hot to live in.Para 5After the clever animals(humans)became important on the earth,what happened?Answer question 1234567Lets check whether we put the right order at first.Are you right

9、?Task three Please read the text again,then put the order of these sentences.(exercise 2,page 27)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.Insects and amphibians appeared The ear

10、th 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.Big Bang4.5-3.8 billionmany million years later2.6 millionNowTimeEventsBig Bangdust solid globewater appearssmall plantsshellfish and fishplants grow o

11、n the landinsects and amphibiansreptilesdinosaur mammalsclever animalshumans life earthSum up The text may tell us the _ of the earth and after _ appear,the _ of life one after another on it.formationwater developmentIn the last paragraph,we know humans face seriously global warming problem,which is

12、 threatening our existence.Can you write something to call on us to protect our environment?Discussion 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 The eart

13、h 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