必修3unit4astronomythescienceofthestars全套教学课件

1、Unit 4 Astronomy: the science of the starsHow Life Began on the EarthPeriod 1Science SubjectsPhysicsChemistryBiologyGeology MathematicsMedicineBiochemistryGeophysicsAstronomyAstronomy is the scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), gas, and dust

2、within it. astronomerThe Big Bang The Solar system eight planets many comets other objects Water Air LifeWater is the headspring of life.?A cloud of dustCombine into a solid ballExplodewith fire & rock(produce H2O, CO2,O2, N2, other gases) atmosphereCool downwater appeared dissolve harmful gases int

3、o Life beganLife developedThe development of lifeA cloud of dust a solid ball presence of water on the water shellfish & other fish plants begin to grow on dry land insects and amphibians appear retiles appear dinosaurs appear mammals appearThe development of lifesmall plants growon the water appear

4、shellfish & other fishplants begin to grow on drylandinsects and amphibians appearretiles appeardinosaurs appearmammals appear Good morning/afternoon, I am Dr. Im greatly honored to be here to give you a speech about the development of life. What problems have been caused by humans to the earth? How

5、 to protect the earth and make it a better place to live on?Design an activity on Earth Day What the activity is about Why the activity is designed When and where to do the activity Who takes part in the activity What to be done in the activity Homework Search the Internet for the information of the

6、 development of life.2. Read and learn good words, phrases or structures from Reading. Period 2 Using Language & Reading Taskthe natural force that causes an object to move toward the centre of the earth. GravityIsaac NewtonAlbert EinsteinStephen HawkingGravity I heard about how three men made mista

7、kes when they tried to describe gravity. I heard about how three men wanted to find out about the beginning of the universe. I heard about how the idea of gravity has developed over a long period of time. I heard about three scientists and their work. Main ideaNewtonEinsteinHawkingDatesIdeaOther inf

8、o.1642-17271879-19551942-Everything is affected by a force called gravityGravity is connected to time and space“Black holes” “eat” objects but also “spit” them out.It was only about the earth.It was about the universe.It was about things found in the universe called “black holes”.A visit to the moon

9、On the moonThe change of gravityIn spaceVery strongVery heavyDisappeared Floated weightlessly Very light The mass will be lessLeave the earthLast month I visited the moon with my friend. Before we left, I was told the force of g_ would change three times on our journey. Then we took off. As we left

10、the earth, I became very h_. Gradually the weight l_. When I was in space, it d_. We f_ weightlessly in the cabin and I c_ _. When I was on the moon, I was surprised to find out even walking needs lots of practice n_ _ gravity changed. The returning of the earth was very f_. We were amazed to watch

11、fire b_ _ on the outside of the ship. gravityheavylesseneddisappearedfloatedcheered upnow thatfrighteningbreak outA black hole About usAbout the black holeAbout othersCircle of lightsLarge starsLike a mouthIn shock and amazementLight went out Computers stopped workingFeel sickMy mouth dryClose my ey

12、esSpaceship not moveI was bumped and bangedable to lookSpit objects outPull us into its mouthJumped again,increase its speed as fast as light,like a birdJump and went fasterMy watch slowerexcitingComputer began to work againturn awayHomework1.Search for more about the black hole.2.Read these two pas

13、sages again to find out how to organize a story.Period3 Listening task, talking, listening and writing C. To make the Hubble telescope work again. Why did Li Yanping have his first space walk? A. To collect data for his research on gravity. B. To test the function of the new spacesuit. C. To make th

14、e Hubble telescope work again. How to cool youHow to breatheProblemsWhat to eatWhat to dress1.Oxygen can2.Water system3.Gravity boots4. Left engine5.Right engine6.Tool kitPlease look at/ listen to Please check that You needPlease pay attention to Dont forget to Youd betterMake sure you Watch out for

15、 You must(nt)The manned spacecrafts Shenzhou 5 & 6Shenzhou 5Shenzhou 6WhenWhoHow longOct. 15, 2003 Oct. 12, 2005 Yang Liwei21 hours and 23 minutes5 daysvideoFei Junlong Nei HaishengInterviewMr. Renault Yang Liwei became an astronaut by chance. Nobody over 170cm can be an astronaut. Yang Liwei traine

16、d for 10 years to become a pilot. If Yang Liwei had problems in space, there were ways to save him. China is the third country to send people into space just like Russia and the USA. Yang Liwei thinks he was lucky to be Chinas first man in space. TTrue OR FalseFFTTTInfo. on Yang Liwei, the astronaut

17、The exams he passedExperiencePhysical qualitiesPersonal qualitiesExcellent degree and 10 years trainingPilot for the air force of the PLASmaller than 170 cm; less than 70 kgCalm, mature, hard-working What have you learnt from the great scientist? What qualities should a scientist have?What should yo

18、u do now in preparation for becoming an astronaut or scientist? WritingBrainstorming for writing What will we meet on the moon?when wherewhatwho problemsSolutionHow to write an outline?Outline (main idea)The first paragraph(introduction)Body (your own ideas on the item)Conclusion (summing up)heading

19、Grammar:Period 4Subject clauseCan you find the following sentence in the reading passage?In this sentence, a noun clause is used as the subject.What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun.Please pick out three more sentences with subje

20、ct clauses from the reading passage.1. because it was not clear whether the solid shape was to last or not.2. What scientists think is that the earth was different because of 3. Whether life will continue on the earth for millions of years to come will depend on P64 USING STRUCTUREDo you know where

21、we come from? How did the universe begin? Read the passage and try to understand how Stephen Hawking solved the problems?What has attracted Stephen Hawking all his life?Does he think it simple to answer the questions? Whats his opinion? What have we discovered about the universe, past and present?Ho

22、w can we have a complete picture of the universe?What the universe is like has attracted him.No. The answers have always well beyond our reach.Milky Way galaxy; billions of galaxies, in a universe that is infinite and expanding; big bang; black hole; a dark matter; a possible Big Crunch.Learning to

23、understand what we see.Language pointsPeriod 5动词过去式过去分词现在分词意义lielaylainlying躺，位于lieliedliedlying撒谎laylaid laidlaying搁，放，下蛋The naughty boy _ to me that the hen that _ there just now had_ two eggs the day before.A. laid; laid; laid B. laid; lay; lainC. lied; laid; lain D. lied; lay; laidD阻止某人做某事 :prevent sb. (from) doing sth. stop sb. (from) doing sth. keep sb. from doing sth. depend on