高中英语人教版必修三.pptxVIP

What do you know about astronomy?Sun is a star(恒星),which can give off light and heat by itself,and also is the center of the solar system.Sun is the basic source of energy.Moon is a satellite(卫星),it merely reflect the light of the sun,like a huge mirror hung in the sky.It always moves around planet(行星).火星Mars 金星Venus 地球Earth 水星Mercury 天王星Uranus木星Jupiter土星Saturn 海王星 NeptuneSome famous astronomic theoriesThe Theory of Relativity《相对论》The Law of Gravity《万有引力定律》The Theory of Black hole《黑洞论》Step1: Read the passage quickly and match the main idea of each paragraph.Para. 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. How Life Began on The EarthPara.1 Para.2Para.3Para.4Para.5Part 1: The development of the earthPart 2: The development of lives Step2: Detailed ReadingRead Part 1 (Paragraph 1-3) and answer : Q1. What made up the earths atmosphere after the earth exploded?Q2. How did the earth come into being?Q3. How did water come into being on the earth? Q1: What made up the earths atmosphere after the earth exploded?After the earth exploded,the earths atmosphere was made up by carborn,nitrogen,water vapour and other gases.Q2. How did the earth come into being?A cloud of dusta solid globeThe Big Bangcarbonnitrogenwater vapourother gasesmade the earths atmosphereexploded with fire and rockimportant !!!the water appearedthe earth cooled downthe harmful gases and acids were dissolvedQ3. How did water come into being on the earth?explodedThe earth ___________water vapourproduced _______________cooled downThe earth _______________water appearedThe development of the life in waterShellfish Amphibian Reptile Mammal Insect Oyster（牡蛎）belongs to __________ Animals such as snake belongs to __________ Dog、Cat、Be