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1、选择性必修三Unit2 Extended reading教案 Why we exploreLearning Objectives Summarize the authors reasons for space exploration; Analyze the structure of the argumentative essay; Appreciate the writing techniques that the author adopts; Strengthen their desire to future explore the unknown field.Teaching Key a
2、nd Difficult points Summarize the main reasons of space exploration; Grasp the feature and structure of the argumentation.Teaching Procedures.v Pre-readingWatch a video and answer following questions:Whats the video mainly about? If given a chance , would you want to explore space?Ss: v While-readin
3、gFast-readingScan the article and try to finish following tasks.Whats the genre of the article?-Its an argumentation.Since its an argumentation,we should pay attention to the topics,the ways of demonstration and arguments.Which of the following shows the structure of the article?（c）Summarize the rea
4、sons for space exploration mentioned in the article.Detailed-reading Read para1 carefully in 2 minutes and fill in the blanks.An example: Neil ArmstrongThe reality: space exploration is extremely difficult and dangerous，take a very long time and cost a huge amount of moneySome people believe space e
5、xploration is meaningful,while some think it wasteful .A question: Why do we continue to explore space? Read para2 carefully in 3 minutes and finish some questionsWhat kept us adventuring?What do we long to do ?origin,evolution,and likely future Read para3 carefully in 3 minutes，then try to finish f
6、ollowing tasks .Reason 2: To expand our understanding of the _ of the universeA. The Earth is round B. The sun orbits the Earth . C. Aliens do exist D. All things in the universeAccording to para.3，what have been confirmed through our research into space? Read para4 carefully in 4 minutes . Can you
7、find out some examples listed in this passage? Read para5 carefully in 3 minutesGreat economic value includes two aspects: the increasing space economy a variety of career opportunities，including astronauts，engineers，mechanics and research assistantsRead para6 and summarize the significance of space exploration.v Post-reading: DiscussionDo you think it is necessary to explore space?SummaryHomeworkExercise book P64-67Review Extended ReadingTeaching Introspection学科网（北京）股份有限公司
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