Unit 2 Workbook Building skills 教案-2022-2023学年牛津译林版（2020）高中英语选择性必修第三册

Unit 2 Out of this world Building skills · 内容分析： 本单元的主题语境是“人与自然”，话题是“太空探索”，涉及的语篇类型有：视频、讲座文稿、漫画和杂志文章等。本单元的教学旨在培养学生深入思考人类探索宇宙的意义并学习宇航员奋勇前进、直面挑战的宝贵品质，培养学生对未知世界的好奇心与探索精神，加深学生对国家航天科技发展的认识，增强民族自豪感，激励学生未来为国家科技进步和航天事业发展贡献力量。 · 教学目标： By the end of this section, students will be able to: 1. get familiar with extraterrestrial intelligence; 2. collect some expressions to present your opinions; 3. write an article to express their opinion on Mars. · 教学重难点： 1. To help students understand the listening materials and finish the listening task; 2. To encourage students to express their opinions bravely; 3. To guide students to finish their composition. · 教学过程： Step 1 Lead-in Q: Do you know anything about extraterrestrial intelligence? Step 2 Listening A1 Space Talk is a podcast devoted to all things about space. The host is introducing the search for extraterrestrial intelligence (SETI). Listen to the talk and answer the following questions. 1. How long has the search for extraterrestrial intelligence been going on? The search for extraterrestrial intelligence has been going on for decades. 2. What do scientists use to detect extraterrestrial messages? Powerful radio telescopes. 3. When was man’s first SETI attempt? In 1960. 4. What is the distance between the Earth and each “nearby” star in Project Ozma? About 11 light years. 5. What does the SETI Institute want to explore, understand and explain? The origin and nature of life in the universe and the evolution of intelligence. A2 In the second half of the podcast, the host is interviewing astronomer Eileen Guest about contacting extraterrestrials. Listen to the conversation and complete the notes below. Step 3 Speaking A3 In pairs, discuss whether humans should try to contact extraterrestrial intelligence. Use the example below to help you and pay attention to the expressions in bold. Useful expressions: · alien · whatsoever · civilization · launch an attack · push the limits of science and technology · make a good point Ste