【课堂新坐标】2014秋高中英语人教版必修三教学课件（目标分析+方案设计+自主导学）：Unit 4 Astronomy the science of the stars（5份）

课件37张PPT。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.教师用书独具演示●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。 ●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Saturn；天王星Uranus；海王星Neptune。第二步：教师提问：Among these planets，the earth is really special for its living life.And do you know how the life began on the earth? 在同学们自由回答后，教师应指明的是：关于生命的起源，主要有宗教和科学两类不同的解释。教师可通过图片、文字等方式向学生介绍以下三方面的说法： 1．中国古代关于人类起源的传说(Chinese legends)：如“盘古开天”和“女娲造人”等； 2．西方圣经(biblical story)的“上帝造人说”； 3．较为公认的科学解释(scientific ideas)：“宇宙大爆炸”说。演示结束 Ⅰ.篇章结构 阅读P25－26的Reading部分，完成下列表格Ⅱ.语篇理解 阅读P25－26的Reading部分，从每题所给的3个选项中选择最佳答案 1．What is the right order according to the text? ①Animals appeared and spread. ②The forming of the earth. ③Plants appeared. ④Difference between the earth and other planets. A．②③④①　　 B．②④③①　　 C．③④②①2．What is the main cause that life was able to develop on the earth but not on other planets? A．The earth had a solid shape. B．Water stayed on the earth but not on other planets. C．The earth was not too hot or too cold. 3．From the last paragraph we can infer that the author is . A．confident B．sad C．concerned4．What does the word “they” refer to in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon, nitrogen, water vapour and...”？ A．Planets. B．Gases. C．Fire and rock.5．It can be inferred from the text that . A．after the “Big Bang”， what the dust was to become remained a mystery B．the plants multiplied and filled the oceans with oxygen C．plants played an important part in the appearance of the animals 【答案】　1.B　2.B　3.C　4.C　5.CⅢ.课文缩写 The earth was just a cloud of 1. after the “Big Bang”. The earth 2. loudly with fire and rock. They were in 3. to produce many things, which were to make the earth's ... ...