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1、,Astronomy: the science of the stars,Unit 4,Hangzhou High School Observatory,In our solar system eight planets circle around the sun.,1111,My Very Excellent Mother Just Sent Us Nine Pizzas,How to remember the order of the eight planets around the sun?,Earth,Jupiter,Mars,Mercury,Neptune,Saturn,Uranus
2、,Venus,Chinese Legends,Pangu separates the sky from the earth.,女 娲 补 天,Legend: The Goddess Nuwa mended the heaven and created human beings from the clay(粘土).,Religious Beliefs,According to Bible , God created the world in seven days.,Day 1: God created Day and Night.,Day 2: God created sky.,Day 3: G
3、od created dry landthe earth, and seas.,Day 4:God created tow great lights(the sun, the moon) and stars.,Day 5: God created living things in the air and sea.,Day 6: God created the land animals and the first man.,Day 7: God rested and called this day Holy.,Unit 4,How Life Began on the Earth,1 Insect
4、s and amphibians appeared. 2 Dinosaurs appeared. 3 The earth became a solid ball. 4 Small plants grew on the water. 5 Reptiles appeared. 6 Plants began to grow on dry land.,scanning,Reading Comprehension III,7 The earth was a cloud of dust. 8 Water appeared on the earth. 9 Shellfish and other fish a
5、ppeared. 10 The universe began with a “Big Bang”. 11 Clever animals with hands and feet appeared. 12 Mammals appeared.,Answer: 10 7 3 8 4 9 6 1 5 2 12 11,Detailed Reading,The development of the earth,Stage 1: The development of the earth,(1) After the Big Bang, what happened?,a cloud of dust,a viole
6、nt solid globe,exploded with fire and rock,produced carbon, nitrogen ,water vapour& gases,(2) What happened next?,(3) What did the water vapour and gases form?,the earths atmosphere,Water appeared,(4) What appeared on the earth then?,(5) What did the water form?,oceans and seas,The development of li
7、fe,extremely small plants,First,early shellfish,Stage 1: The development of life in water,all sorts of fish,green plants on land,insects on land,Stage 2: The development of life on land Next,amphibians on land and in the water,Green plants grew into forests Later,reptiles on land,dinosaurs on land,(
8、1) What life developed after forests appeared?,After that,mammals on land,(2) What life developed after dinosaurs?,small clever animals,(3) What life developed after mammals? Finally,1. Big Bang,How did the earth come into being?,Group Discussion,1. What problems are caused by human beings?,2. How to solve these problems?,Homework,1. Find out language points and noun clauses in the reading passage.Discuss and analyse them.,2. Writing: Rewrite the passage and use as many language points and new words as possible.,
