必修三 4.6《Unit 4 Astronomy the science of the stars》.ppt

新课标人教版课件系列,高中英语必修3-4.6,Unit 4 Astronomy:the science of the stars,What subjects do you learn at school?,ChineseEnglish mathematicsphysicschemistry,geographybiologyhistory,physicschemistrybiologygeology mathematics,MedicineBiochemistryGeophysicsAstronomy,Science subjects,Frontier science,Warming up,medicinebiology chemistry,astronomy physics mathematics,geophysicsgeology physics,biochemistry biology chemistry,Astronomy is the scientific study of the universe and the heaven bodies(such as the sun,the moon,and stars),gas,and dust within it.,astronomer,Do you know the following scientists?Who are they?What have they discovered?,Isaac Newton,牛顿 16421727,Universal gravitation 万有引力,Einstein,Albert(1879-1955)爱因斯坦,Relativity（相对论）and the Cosmos（宇宙）,The theory about black holes（黑洞理论）,霍金,Solar system,水星最接近太阳，是太阳系中第二小行星。水星的英文名字Mercury来自罗马神墨丘利。墨丘利也就是希腊神话中的Hermes。或许由于水星在空中移动得快，才使它得到这个名字。金星是离太阳第二近，太阳系中第六大行星。古希腊人称之为Aphrodite(阿芙罗狄蒂)，是希腊神话中爱与美的女神。而在罗马神话中爱与美的女神是维纳斯Venus，因此金星也称做“维纳斯”。地球是距太阳第三颗，它是太阳系类地行星中最大的一颗，也是太阳系第五大行星，行星年龄估计大约有45亿年(4.5109)。地球是唯一一个不是从希腊或罗马神中得到的名字。Earth一词来自于古英语及日耳曼语。这里当然有许多其他语言的命名。在罗马神话中，地球女神叫Tellus肥沃的土地。火星为距太阳第四远，也是太阳系中第七大行星。因为火星在夜空中看起来是血红色的，所以在西方，以罗马神话中的战神Mars命名它。,木星是离太阳第五颗行星，而且是最大的一颗。木星是天空中第四亮的物体。木星是自转最快的行星。在西方称它为朱庇特Jupiter，是罗马神话中的众神之王，相当于希腊神话中的宙斯（Zeus）。土星是离太阳第六远的行星。是太阳系中仅次于木星的第二大行星。中国古代称之为镇星或填星。土星的英文名字Saturn（以及其他绝大部分欧洲语言中的土星名称）是以罗马神的农神萨杜恩命名的。希腊神话中的农神Cronus是Uranus（天王星）和该亚的儿子，也是宙斯的父亲。,天王星是太阳系中离太阳第七远行星，颜色为灰蓝色，是一颗巨型气体行星(Gas Giant)。以直径计算，天王星是太阳系第三大行星；天王星的命名，是取自希腊神话的天神乌拉诺斯 Uranus。乌拉诺斯是古希腊神话中的宇宙之神，是最早的至高无上的神。他是该亚的儿子兼配偶，是Cronus（农神土星）、独眼巨人和泰坦（奥林匹斯山神的前辈）的父亲。海王星为太阳系九大行星中的第八个，是一个巨行星。海王星。目前海王星是太阳系内离太阳第二远的行星。海王星的名字是罗马神话中的海神涅普顿（Neptune）。古希腊神话中海神叫波塞冬(Poseidon)。,1.Do you know how did the universe begin?,Each religion or culture has its own ideas about the beginning of the universe?,Pre-reading,Pangu separates the sky from the earth.,Pangu separates the sky from the earth,Pangu separated the earth and sky with an ax.After he died,his breath became wind and cloud;his voice became thunder and his left eye sun and right one moon;arms and legs became edges and mountains;blood became rivers and tendon(筋脉)became roads;muscles became fields and hair stars;teeth and bones became metals,pearls and jade;sweat became rain.,Other legends about the beginning of universe,HolyBible,The Biblical Account,Day 1:God spoke and separated light from darkness creating Day and Night Day 2:God spoke and separated the water creating sky and ocean Day 3:God spoke and created dry land,上帝创世说：,Day 4:God spoke and created the sun,moon and stars Day 5:God spoke and created living creatures in the air and sea Day 6:God spoke and created the land animals and man Day 7:God rested and blessed this day calling it Holy,Brahman(婆罗门)is the god first represented in the Hindu Triad.He is the creator of the universe and all living beings are said to have evolved from him.,India,Do you know the origin of the human beings?,Man had evolved from apes.,Earth,How life began on the earth,The Big Bang,Big Bang,A solid ball,Atmosphere,The earth,It was full of water.,Original cells.,The cells in the water began to separate.,water,Plants in the water,Shellfish and fish,Plants on land,Insects and amphibians,Reptiles,Dinosaurs,Mammals,Man had evolved from apes.,water,green plants on land,2,34,How life began on the earth,Analysing,5678,forests,shellfish and all sorts of fish,insects(on land)amphibians(on land and in water),reptiles(on land)dinosaurs(on land)mammals(on land)small clever animals with hands and feet human,small plants in water,1,Reading,How Life Began on the Earth,A cloud of dustCombine into a solid ballExplodewith fire&rock(produce H2O,CO2,O2,N2,other gases),atmosphere,Cool down,water appeared,dissolve harmful gases into,Life began,Life developed,The development of life,Scanning,What was produced when the earth exploded?How did water come into being on the earth?Where did life first begin,on the land or in the sea?Why were mammals different from other animals?,3,What was produced when the earth exploded?Water vapour,carbon dioxide,oxygen,nitrogen and other gases.How did water come into being on the earth?The explosion of the earth produced water vapor,which turned into water when the earth cooled down.,3.Where did life first begin,on the land or in the sea?In the sea.Because water dissolved harmful gases and made it possible for life to begin.4.Why were mammals different from other animals?Because they produced their young from within their bodies.,Careful Reading Finish the comprehending on page 26-27,Think about what you have read and make choices.,Why was the earth different from other planets?A it produced a lot of heat.B.The water remained.C Water disappeared.D.It was the oldest planet.,Why was life able to develop on the earth but not on other planets?A The earth had a solid shape.B.The earth did not have harmful gases in its atmosphere.C The water stayed on the earth but not on other planets.D.The earth was not too hot and not too cold.,Why was it necessary for plants to grow before animals?,A Animals needed plants to protect them from the sun.B Plants provided oxygen for animals to breathe.C Animals could hide from hunters in forest.D It was easier for plants to grow.,What problem is caused by human being?,A They exist everywhere on the earth.B They cause global warming.C They find new methods of growing crops.D They enjoy hunting and fishing.,B C B BD B I G E H A C F Ja cloud of dusta solid ballpresence of watersmall plants grow on the watershellfish and other fish appearplants begin to grow on dry landinsects and amphibians appearreptiles appeardinosaurs appearmammals(including humans)appear,P26(6),Listen to the tape,1,2,3,4,5,6,7,8,9,Small plants in water,Shellfish and all sorts of fish,Green plants on land,Insects(on land),Amphibian(on land and in water),Forests,Reptiles(on land),Dinosaurs(on land),Mammals(on land),The development of life,What problems have been caused by humans to the earth?,How to protect the earth and make it a better place to live on?,Retell,Text Retelling,The explosion of the earth produced_ _,which turned into water when the earth cooled down.Water allowed the earth to _ harmful gases into the oceans and seas.That made it possible for _ to begin to develop.The arrival of small _ encouraged the development of early _ and all sorts of fish.Many millions of years later the first green plants began to appear on land.,water,vapour,dissolve,life,plants,shellfish,Later land animals appeared.Some were_.Others,called_,were able to live on land as well as in the sea.When the plants grew into forests,_appeared for the first time.Then _developed,which became the most important animals on the earth for millions of years.After they disappeared,_ became more important.,Text Retelling,insects,amphibians,reptiles,dinosaurs,mammals,They were the last group of animals and they were different because they _ their young from within their bodies.Small clever animals,with hands and feet,_ and _ all over the earth.As time went by,they covered the earth and have become the most important animals on the planet.,Text Retelling,produced,appeared,spread,Grammar:,Period 4,Subject clause,Can 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 subject 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 STRUCTURE,Do you know where 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?How 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 understand what we see.,_ the universe is like has attracted Stephen Hawking all his life._ is clear and simple about the universe has always seemed too difficult for us to answer._ the universe exists the way it does is a major question to all those who have looked at stars like Hawking._ has developed over two thousand years of observation has to be greatly revised._ in the universe we live is not the centre,but one of the mine planets orbiting the sun,which is just one of millions of stars in our own Milky Way galaxy.,