Unit4Astronomythescienceofthestars省公共课一等奖全国赛课获奖课件.pptx
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1、Unit 4 Astronomy:the science of the stars第1页Period 1 Warming up and pre-reading第2页第3页第4页What subjects do you learn at school?lChineselEnglish lmathematicslphysicslchemistrylgeographylbiologylhistory第5页physicschemistrybiologygeology mathematicsMedicineBiochemistryGeophysicsAstronomyScience subjectsFr
2、ontier science第6页Warming upmedicinebiology chemistry astronomy physics mathematics第7页geophysicsgeology physics biochemistry biology chemistry第8页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第9页Solar system
3、第10页 水星最靠近太阳,是太阳系中第二小行星。水星英文名字Mercury来自罗马神墨丘利。墨丘利也就是希腊神话中Hermes。或许因为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女神。而在罗马神话中爱与美女神是维纳斯Venus,所以金星也称做“维纳斯”。第11页 地球是距太阳第三颗,它是太阳系类地行星中最大一颗,也是太阳系第五大行星,行星年纪预计大约有45亿年(4.5109)。地球是唯一一个不是从希腊或罗马神中得到名字。Earth一词来自于古英语及日耳曼语。这里当然有许多其它语言命名。在罗马
4、神话中,地球女神叫Tellus肥沃土地。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,所以在西方,以罗马神话中战神Mars命名它。第12页 木星是离太阳第五颗行星,而且是最大一颗。木星是天空中第四亮物体。木星是自转最快行星。在西方称它为朱庇特Jupiter,是罗马神话中众神之王,相当于希腊神话中宙斯(Zeus)。土星是离太阳第六远行星。是太阳系中仅次于木星第二大行星。中国古代称之为镇星或填星。土星英文名字Saturn(以及其它绝大部分欧洲语言中土星名称)是以罗马神农神萨杜恩命名。希腊神话中农神Cronus是Uranus(天王星)和该亚儿子,也是宙斯父亲。第13页
5、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;天王星命名,是取自希腊神话天神乌拉诺斯 Uranus。乌拉诺斯是古希腊神话中宇宙之神,是最早至高无上神。他是该亚儿子兼配偶,是Cronus(农神土星)、独眼巨人和泰坦父亲。海王星为太阳系九大行星中第八个,是一个巨行星。海王星。当前海王星是太阳系内离太阳第二远行星。海王星名字是罗马神话中海神涅普顿(Neptune)。古希腊神话中海神叫波塞冬(Poseidon)。第14页1.Do you know how did the universe begin?第15页Each r
6、eligion or culture has its own ideas about the beginning of the universe?Pre-readingPangu separates the sky from the earth.第16页Pangu separates the sky from the earth第17页 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
7、eye sun and right one moon;arms and legs became edges and mountains;blood became rivers and tendon(筋筋脉脉)became roads;muscles became fields and hair stars;teeth and bones became metals,pearls and jade;sweat became rain.第18页Other legends about the beginning of universeThe Holy Bible第19页The Biblical Ac
8、countDay 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:第20页Day 4:God spoke and created the sun,moon and stars Day 5:God spoke and created living creatures in the air and s
9、ea Day 6:God spoke and created the land animals and man Day 7:God rested and blessed this day calling it Holy 第21页Brahman(婆罗门婆罗门)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第22页Period 2 Reading How Lif
10、e Began on the Earth第23页Do you know the origin of the human beings?第24页Man had evolved from apes.第25页EarthHow life began on the earth第26页The Big Bang 第27页Big BangA solid ballAtmosphere The earth第28页It was full of water.第29页Original cells.第30页The cells in the water began to separate.第31页waterPlants i
11、n the waterShellfish and fishPlants on land第32页Insects and amphibiansReptiles Dinosaurs Mammals 第33页Man had evolved from apes.第34页watergreen plants on land234How life began on the earthAnalysing 5678forestsshellfish and all sorts of fishinsects(on land)amphibians(on land and in water)reptiles(on lan
12、d)dinosaurs(on land)mammals(on land)small clever animals with hands and feet human small plants in water1第35页A cloud of dustCombine into a solid ballExplodewith fire&rock(produce H2O,CO2,O2,N2,other gases)atmosphereCool downwater appeared dissolve harmful gases into Life beganLife developed第36页The d
13、evelopment of life第37页Scanning1.What was produced when the earth exploded?2.How did water come into being on the earth?3.Where did life first begin,on the land or in the sea?4.Why were mammals different from other animals?第38页1.What was produced when the earth exploded?Water vapour,carbon dioxide,ox
14、ygen,nitrogen and other gases.2.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.第39页3.Where did life first begin,on the land or in the sea?In the sea.Because water dissolved harmful gases and made it possib
15、le for life to begin.4.Why were mammals different from other animals?Because they produced their young from within their bodies.第40页Careful Reading Finish the comprehending on page 27第41页Think about what you have read and make choices.Why was the earth different from other planets?A it produced a lo
16、t 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
17、 was not too hot and not too cold.第42页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 h
18、uman 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.第43页Comprehending 1.B C B B2.D B I G E H A C F Ja cloud of dusta solid ballpresence of watersmall plants grow on the watershellfish and other fish app
19、earplants begin to grow on dry landinsects and amphibians appearreptiles appeardinosaurs appearmammals(including humans)appearP26(6)第44页Listen to the tape 第45页1 23 4 5 6 789Small plants in waterShellfish and all sorts of fishGreen plants on landInsects(on land)Amphibian(on land and in water)ForestsR
20、eptiles(on land)Dinosaurs(on land)Mammals(on land)The development of life第46页What problems have been caused by humans to the earth?How to protect the earth and make it a better place to live on?第47页第48页Retell第49页Text Retelling The explosion of the earth produced_ _,which turned into water when the e
21、arth 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.watervap
22、ourdissolvelifeplantsshellfish第50页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
23、 disappeared,_ became more important.Text Retellinginsectsamphibiansreptilesdinosaursmammals第51页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 cov
24、ered the earth and have become the most important animals on the planet.Text Retellingproducedappearedspread第52页Period 3 Grammar:Subject clause第53页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 unti
25、l the dust began to slowly combine into a ball moving around the sun.第54页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.Wheth
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