1、必修3Astronomy:the science of the starsUnit 4Words and expression reviewastronomy systemsolar systemreligionn.天文学n.系统；体系；制度太阳系n.宗教；宗教信仰ObjectiveTo learn the basic knowledge about astronomy.What science subjects do you know?physics Geology(地质学)geographybiochemistryastronomyAstronomy is a natural scienc
2、e that deals with the study of celestial objects(天体)(such as moons,planets,stars,nebulae(星云),and galaxies);the physics,chemistry,and evolution of such objects.What is Astronomy?In our solar system eight planetscircle around the sun.The Solar SystemA.地球 _B.木星 _C.火星 _D.水星 _E.海王星 _F.土星 _G.天王星 _H.金星 _Ea
3、rthJupiterMarsMercuryNeptuneSaturnUranusVenusThe Solar SystemCan you name the eight planets?In our solar system eight planetscircle around the sun.1111My Very Earnest Mother Just Served UN a PizzaHow to remember the order of the eight planets around the sun?EarthJupiterMarsMercuryNeptuneSaturnUranus
4、VenusLets appreciate some beautiful pictures of the solar system.Total lunar eclipse(月全食)Total solar eclipse(日全食)Meteor rain(流星雨)Comet(彗星)What interests you in astronomy?Do you know any questions that astronomers are interested in?How did life begin on Earth?How was the universe formed?Brainstorming
5、Do you know each religion or culture has its own ideas about the origin of the universe or life?Chinese Legends(传说)Pangu separates the sky from the earth.His whole body then turns into all kinds of things in the universe.Legend:The Goddess Nvwa mended the heaven and created human beings from the cla
6、y(粘土).According to Bible(圣经),God created the world and the first man,Adam(亚当)and the first woman,Eve(夏娃).God created the world in seven days.Religious Beliefs 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
7、:God spoke and created dry land.Day 4:God spoke and created the sun,the moon and stars.Day 5:God spoke and created living things in the air and sea.Day 6:God spoke and created the land animals and the first man.Day 7:God rested and called this day Holy.Scientific Theories Famous scientists such as N
8、ewton,Einstein and Stephen Hawking had their own theory about the origin of the universe.The universe began from the Big Bang.Life first began in the sea on the earth.Life was brought to the earth by ET from outer space.Life came from a comet which hit the earth.1.insects 2.plants3.reptiles(爬行类)4.sh
9、ellfish(贝类)5.amphibians(两栖类)6.fish 7.mammals(哺乳类)Study of the groups of life(种类/物种)Look at the pictures and tell the groups.plantsreptiles(爬行类)shellfish(贝类)fishinsectsmammalsamphibians(两栖类)Homework1.Look up the new words and 2.expressions of the Reading in 3.the dictionary.2.Preview the Reading:HOW LIFE BEGAN ON THE EARTH
