河北省抚宁县第六中学高中英语《Unit4 Astronomy the science of the stars》reading教案（1） 新人教版必修3

1 河北省抚宁县第六中学高中英语河北省抚宁县第六中学高中英语 Unit4 Unit4 AstronomyAstronomy thethe sciencescience ofof thethe stars readingstars reading 教案 教案 1 1 新人教版必修新人教版必修 3 3 一 教案背景 1 课时 1 课时 2 学生课前准备 尽可能多的搜集有关天文学的知识 二 教学重点 Develop students reading and speaking skills 三 教学难点 Enable students to learn to use reading strategies such as skimming scanning and so on 四 三维目标 技能目标 1 Get students to learn some useful new words and expressions in this part 2 Get students to read the text 方法目标 Develop students reading skills and enable them to learn how to use different reading strategies to read different reading materials 情感目标 1 Stimulate students interests of learning English by reading the text 2 Develop students sense of group cooperation and teamwork 3 let students learn about how life began on earth and the importance of protecting the earth 五 教学方法 小组合作探究 六 教具 多媒体 七 教学过程 Warming upWarming up andand readingreading StepStep 1 1 RevisionRevision 1 Check the homework exercises 2 Ask some students to read the words of U4 Step2 ScanningStep2 Scanning 1 match1 match thethe mainmain ideaidea withwith eacheach paragraph paragraph Para 1 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 2 2 Divide2 Divide thethe texttext intointo 2parts2parts Stage 1 The development of the earth para Stage 2 The development of life para Step3 CarefullyStep3 Carefully readingreading 1 Finish1 Finish thethe followingfollowing tasks tasks Stage 1 The development of the earth 1 After the Big Bang what was the earth like It s still just The dust settled into a 2 What happened next It with fire and rock and produced and other 3 What did the water vapour and gases form 4 What appeared as the earth cooled down appeared Why is water so important for the beginning of life Stage2 The development of life 1 What life developed after water appeared appears in water 2 What life developed in water next and all sorts of 3 What about the life on land and appeared 4 What life developed next on land The plants grew into appeared and developed 5 What life developed after dinosaurs on land 6 What life developed after mammals animals Who are the small clever animals with hands and feet Are they taking care of the earth well Why 2 Can2 Can youyou putput thethe orderorder ofof developmentdevelopment ofof lifelife intointo a a timetime line line 1 Insects 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 7 The earth was a cloud of dust 8 Water appeared on the earth 9 Shellfish and other fish appeared 10 T he universe began with a Big Bang 11 Clever animals with hands and feet appeared 12 Mammals appeared 3 3 FillFill inin thethe blanksblanks inin thethe followingfollowing forform m 3 TimeWhat happened Big Bang began to form and combine to create stars and other bodies Between 4 5 and 3 8 billion years ago Dust settled into a solid and globe The earth exploded to produce its The continued of water allowed the earth to dissolve harmful gases and into the oceans and seas Many millions of years later The first small plants on the surface of the water produced Early and all sorts of fish appeared Green plants began to grow on land Insects and appeared Many millions of years later appeared and they laid eggs Dinosaurs developed laid eggs and for more than 140 million years Mammals rose and babies About 2 6 million years ago Some small animals with hands and feet appeared and spread all over the earth NowHumans produce too much carbon making the earth too hot 4 4 TrueTrue T T oror FalseFalse F F 1 The earth appeared before the Big Bang happened 2 The original atmosphere consisted of nitrogen and oxygen 3 Oxygenwas important to the development of fish 4 Life began in water and then on land 5 The disappearance of dinosaurs made the possible the rise of mammals on the earth 6 Dinosaurs could give birth to young baby animals and produced milk to feed them 7 Human beings produce too much carbon dioxide which causes the global warming on the earth 8 According to the text human beings would disappear in the end Step4 PhrasesStep4 Phrases andand UsefulUseful ExpressionsExpressions 1 according to 2 a widely accepted theory 3 begin with 4 in all directions 5 several billion years 6 whether or not 7 in time 8 cool down 9