广东省惠州市惠东县惠东荣超中学高中英语 Unit 4 Reading 学案 新人教版必修 3【学习目标】1. 分享有关宇宙的构成、地球的形成、宇宙大爆炸、生物进化的资料；2. 了解边缘科学、地球生命的起源，了解万有引力、黑洞和太空旅行等天文知识，培养对科学的兴趣和探究科学的热情；3. 了解作者的写作特点，培养创造性思维。【方法指导】 1.通读课文，理解文章大意 2.再次细读课文，理解细节内容课前预习: ① 预读课文，找出难懂的句子，与同伴交流学习；② 收集有关宇宙的构成、地球的形成、宇宙大爆炸、生物进化的资料。课堂探究案 Exploring CaseStep 1: Warming up & Pre-readingDiscuss with the classmates in your groups about the following questions:1) Where do we come from? Who are our ancestors? 2) Each religion and culture has its own ideas about how life began on earth. What do you know?3) In our solar system eight planets circle around the sun. What are they? How to remember the order(顺序) of the eight planets(行星) ？ 4) What interests you in astronomy? Do you know any questions that astronomers are interested in?A Quiz Game(知识小竞赛):1. How old is the earth?A. About 3.5 billion years B. About 4.5 billion yearsC. About 5.5 billion years D. About 6.5 billion years 2. ______ of the earth surface is covered by water.A. 20% B. 30% C. 50% D. 70%3. How many planets are there in the Solar System?A. 6 B. 7 C. 8 D. 9 4. What is the total population of humans on the earth?A. About 3.5 billion B. About 4.5 billionC. About 5.5 billion D. About 6.5 billion5. How long does the rotation of the earth take? A. 12 hours B. 24 hours C. a month D. 365 days6. Which continent is the smallest?A. Africa B. North America C. South America D. Oceania 7. On what day is the Earth day celebrated?A. April 22 B. May 4 C. August 21 D. November 1118. Which ocean is the largest?A. The Pacific Ocean...
