必修三四单元

Unit 4 Astronomy:the science of the starsthe first man in spaceYuri Gagarin The first man to land on the moonNeil Armstrong Union of Soviet Socialist Republics 1961U.S.A.1969One small step for a man,one giant leap for mankind The first Chinese man in spaceYang Liwei 2003 Sheng Zhou Unit 4 海王星Neptune 水星Mercury 金星Venus 地球Earth 火星Mars 木星Jupiter 土星Saturn 天王星Uranus the SunastronomyastronomerstelescopeWhat subjects do you learn at school?lChineselEnglish lmathematicslphysicslchemistrylgeographylbiologylhistorylpolitics1.insects2.plants3.reptiles（爬行类）（爬行类）4.shellfish（贝类）（贝类）5.fish6.amphibians（两栖类）（两栖类）7.mammals(哺乳类哺乳类)Study of the groups of lifeLook at the pictures and tell the groups.Do you know each religion or culture has its own ideas about the beginning of the universe?Leading-inLeading-in1 1神造说神造说神造说神造说(God made)(God made)这一假说认为地球上的各种生物都这一假说认为地球上的各种生物都这一假说认为地球上的各种生物都这一假说认为地球上的各种生物都是由神创造出来的，生命是上帝或神按照一定的目的，是由神创造出来的，生命是上帝或神按照一定的目的，是由神创造出来的，生命是上帝或神按照一定的目的，是由神创造出来的，生命是上帝或神按照一定的目的，一次性地创造出来的。一次性地创造出来的。一次性地创造出来的。一次性地创造出来的。2.2.宇宙生命论宇宙生命论宇宙生命论宇宙生命论(Life in the universe)(Life in the universe)这一假说提倡这一假说提倡这一假说提倡这一假说提倡“一切生一切生一切生一切生命来自生命命来自生命命来自生命命来自生命”的观点，认为地球上最初的生命来自宇宙的观点，认为地球上最初的生命来自宇宙的观点，认为地球上最初的生命来自宇宙的观点，认为地球上最初的生命来自宇宙间的其他星球，即间的其他星球，即间的其他星球，即间的其他星球，即“地上生命，天外飞来地上生命，天外飞来地上生命，天外飞来地上生命，天外飞来”。3.3.非生命物质非生命物质非生命物质非生命物质(Non-living material)(Non-living material)地球上原本没有生命，地球上原本没有生命，地球上原本没有生命，地球上原本没有生命，生命起源于非生命物质。宇宙大爆炸生命起源于非生命物质。宇宙大爆炸生命起源于非生命物质。宇宙大爆炸生命起源于非生命物质。宇宙大爆炸(Big Bang Big Bang)后，地后，地后，地后，地球只是一团尘埃，然后形成固体球状。经过后期的动荡，球只是一团尘埃，然后形成固体球状。经过后期的动荡，球只是一团尘埃，然后形成固体球状。经过后期的动荡，球只是一团尘埃，然后形成固体球状。经过后期的动荡，球体爆炸喷出烈火与岩石，并释放出碳、氮气、水蒸气球体爆炸喷出烈火与岩石，并释放出碳、氮气、水蒸气球体爆炸喷出烈火与岩石，并释放出碳、氮气、水蒸气球体爆炸喷出烈火与岩石，并释放出碳、氮气、水蒸气和其他气体，形成地球大气层。地球冷却后，地面就有和其他气体，形成地球大气层。地球冷却后，地面就有和其他气体，形成地球大气层。地球冷却后，地面就有和其他气体，形成地球大气层。地球冷却后，地面就有了水，形成了原始海洋。原始海洋中的有生命特征的蛋了水，形成了原始海洋。原始海洋中的有生命特征的蛋了水，形成了原始海洋。原始海洋中的有生命特征的蛋了水，形成了原始海洋。原始海洋中的有生命特征的蛋白质和核酸等物质凝聚成独立体系白质和核酸等物质凝聚成独立体系白质和核酸等物质凝聚成独立体系白质和核酸等物质凝聚成独立体系 最后最后最后最后 经历漫长、复经历漫长、复经历漫长、复经历漫长、复杂的进化，最终形成原始生命。杂的进化，最终形成原始生命。杂的进化，最终形成原始生命。杂的进化，最终形成原始生命。Pangu separates the sky from the earth Nuwa makes human beingsOther legends about the beginning of universeDay 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 IndiaIndia Brahma(Brahma(婆罗门婆罗门婆罗门婆罗门)is)is the god first represented the god first represented in the Hindu Triad.He in the Hindu Triad.He is the creator of the is the creator of the universe and all living universe and all living beings are said to have beings are said to have evolved from him.evolved from him.Paragraph 1:Paragraph 2:Paragraph 3:Paragraph 4:Paragraph 5:A widely accepted theoryabout the formation of the universe The formation of the earth The importance of water for life The development of plants and animals on the earth The arrival of humans and their impact on the earthQ2:How Life Began on the EarthLets review the evolution of life on the earth.Our universe began in a big bang about15 billion years ago.The Big Bang is the term used to describe a huge explosion which threw matter in all directions,creating our universe.atmospherewater appeared dissolve harmful gases into A cloud of dustsettled into a solid globeExploded loudly with fire&rock(produce H2O,CO2,O2,N2,other gasesCool downLife beganLife developed4.6 billion years agoThe development of life10 73 8 4 9 6 1 5 2 12 111.Insects and amphibians appeared.3.The earth became a solid ball.5.Reptiles appeared.7.The earth was a cloud of dust.9.Shellfish and other fish appeared.11.Clever animals with hands and feet appeared.2.Dinosaurs appeared.4.Small plants grew on the water.6.Plants began to grow on dry land.8.Water appeared on the earth.10.The universe began with a Big Bang.12.Mammals appeared.Row orderwatergreen plants on land234How life began on the earthPara 4-5 5678forestsshellfish and all sorts of fishinsects(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 water1Big BangA solid ballAtmosphere The earthIt was full of water.Original cells.The cells in the water began to separate.waterPlants in the waterShellfish and fishPlants on landInsects and amphibiansReptiles Dinosaurs Mammals Man had evolved from apes.solar energy plant trees recycle rubbish prevent desertificationsave water purify airWhat can we do take care of the earth?Discuss for moral educationWhy did dinosaurs die out?Do you think there will be a sudden change of weather on the earth?What should people do to protect our earth?