Unit 2 Grammar and usage 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 Grammar and usage: Subject clauses · 内容分析： 本板块围绕单元话题,引导学生在有关“天文望远镜的使用”的语篇中观察、探究主语从句的使用，归纳出核心规则；再通过句子、语篇两个层面的巩固练习让学生内化相关知识；最后让他们运用所学，准确、恰当、得体地使用目标语法，完成预测太空探索发展的写作任务，实现“形式—意义—使用”的统一。 · 教学目标： By the end of this section, students will be able to: 1. identify the use of subject clauses; 2. work out the rules of subject clauses; 3. use subject clauses to finish the tasks; 4. write down the prediction about the development of space exploration using subject clauses. · 教学重难点： 1. To identify the usage of subject clauses; 2. To use the subject clauses correctly and properly; · 教学过程： Step 1 Lead-in What is the Hubble Space Telescope? What is FAST? Hubble Space Telescope FAST What is the Hubble Space Telescope? The Hubble Space Telescope is the largest astronomical telescope ever sent into space. It was launched in 1990. The telescope is to provide astronomers with fascinating new information on the state of the universe. Some of its breakthroughs include the discovery of the unexplained phenomenon of dark energy, evidence of black holes and observations of stars in the last stages of their lives. What is FAST? Step 2 Exploring the rules Read the article on page 20 and fill in the following table. The use of telescopes to explore space Time Breakthroughs Use In 1990 (1) ______________ (2) _____________ (3) ____________ The Kepler Telescope (4)______________ (5) ___________ (6) _______________ To detect communication signals between the stars in the universe Answers： 1. The Hubble Space Telescope 2. To see further than ground-based telescopes; to play a crucial role in the discovery of the mysterious dark energy. 3. In 2009 4. To search for Earth-size planets orbiting other stars. 5. In recent years 6. FAST Find the sentences with subject clauses in the article and fill in the box of part A on page 20. That Hubble is based in space allows it to see further than ground-based telescopes, ... It is clear that telescopes are crucial tools fo