内蒙古高中英语 Unit 4 Astronomy the science of the stars Period 1导学案 新人教版必修3

内蒙古乌拉特中旗一中高一英语导学案：Unit 4 Astronomy the science of the stars Period 1（新人教版必修 3）【学习目标】1. 掌握文章主旨大意，了解关于地球生命起源的相关知识。2. 反复阅读课文，掌握文中重难点词汇，短语3. 小组合作，共同分享学习成果。【课前预习】查找出下列词汇，短语1. solar system___________ 2. 宇宙大爆炸__________________ 3. 十亿_____________4. 原 子 __________ 5. theory____________ 6. circle around_________________ 7. in all directions _____________ 8. 固 体 ______________ 9. globe ____________ 10. explode_______ 11. religion____________(adj.) 12. violent _____________ (n.)【课内探究】8Step 1 :1. How many planets circle around the sun? What are they? ________________________________________________________________________________ Step2: Reading(任务 1) According to the time line, what happened?①For several billion years after: ______________________________________________________②4.5 and 3.8 billion years ago:_________________________________________ ______________③ Many millions of years later: _____________________________________________________④140 million years: ______________________________________________________________⑤ 65 million years ago:____________________________________________________________⑥ about 2.6 million years ago:______________________________________________________(任务 2) ：认真读课文，读后连接各段主题大意Para 1 the importance of water for life Para2 the development of planets and animals on the earthPara3 the formation of the earthPara4 a widely accepted theory about the formation of the universePara5 the arrival of humans and their impact on the earth(任务 3)：Read the text again and then pay attention to some words and phrases.1．天文学__________ 2.系统，体制，制度____________ 3.猛烈的__________4.大气层，气氛_____________ 5.不同，不像______________ 6. 有害的...