【课堂新坐标】（教师用书）2013-2014学年高中英语 Unit 4 Astronomy the science of the stars教案 新人教版必修3.doc

Unit 4　Astronomy：the science of the stars 【美文阅读】　 关于大地起源的神话有许多许多，你了解多少呢？ The sky and the earth were at first one blurred entity(混沌整体) like an egg. Then Pangu was born into it. The separation of the sky and the earth took eighteen thousand years. The yang which was light and pure rose to become the sky，and the yin which was heavy and murky(黑暗的)sank to form the earth. Between them was Pangu, who went through nine changes every day, his wisdom greater than that of the sky and his ability greater than that of the earth. Every day the sky rose ten feet higher, the earth became ten feet thicker, and Pangu grew ten feet taller. Another eighteen thousand years passed, and there was an extremely high sky, an extremely thick earth, and an extremely tall Pangu. After Pangu died, his head turned into the Five Sacred Mountains(Mount Tai, Mount Heng, Mount Hua, Mount Heng, Mount Song), his eyes turned into the moon and the sun, his blood changed into water in river and sea, his hair into grass. In all, the universe and Pangu combine in one. 【诱思导学】　 1．Do you agree on the forming of the universe？Give your reasons. ________________________________________________________________________ ________________________________________________________________________ 2．What kind of people is Pangu in your eyes? ________________________________________________________________________ ________________________________________________________________________ 【答案】　1.No，I dont agree.Because the scientists have already found out how the universe formed. 2．I think Pangu is very great and determined.He is a hero. Period ⅠPreviewing (教师用书独具) ●教学目标 本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，就下一堂课对课文的全面理解起到一个铺垫作用。 ●教学地位 本单元的中心话题是“天文学”。这篇文章采用了叙述性文体。按照时间顺序主要叙述了太阳系、地球上生命的起源和发展过程、宇宙大爆炸。可以说单元科学知识含量较高，更能激发学生的学习兴趣和好奇心。 (教师用书独具) ●新课导入建议 第一步：教师：Imagine you are a scientist on Astronomy，which star do you want to study most？教师展示太阳系的图片，让同学们识别不同的行星。 地球Earth；水星Mercury；金星Venus；火星Mars；木星Jupiter；土星Sa