Unit 4 Life on Mars Grammar 教学设计-2024-2025学年译林版九年级英语下册

该初中英语教学设计聚焦三种从句与介词短语的转换，包括用at the age of等改写状语从句、of/about转换宾语从句、with/in转换限定性定语从句。导入通过火星主题句子如“Neil Armstrong took his first flight when he was six”，引导学生将when从句改写为at the age of短语，搭建旧知到新知的学习支架。 特色在于火星主题情境贯穿，将语法练习与太空探索结合，提升学习兴趣。通过单结构讲解练习到综合段落改写的分层设计，培养学生精准转换句型的思维品质，结合考试相关练习强化语言能力应用。例如“houses which have huge rooms”改写为“houses with huge rooms”，助力学生提升表达灵活性，也为教师提供清晰的重难点突破路径。

Unit 4 Life on Mars Grammar 教学设计 I. Teaching Objectives 1. Knowledge Objectives Students will master three grammar structures: Rewriting adverbial clauses with prepositional phrases (at the age of, because of, without). Converting object clauses to simple sentences with prepositions (of, about). Transforming defining relative clauses into simple sentences with prepositions (with, in). Students will accurately apply these structures to rewrite sentences about space and Mars. 2. Ability Objectives Improve sentence - transformation skills, enhancing flexibility in written expression for exam - related grammar tasks. Develop precision in choosing grammar forms to convey meaning clearly, crucial for effective communication. 3. Affective Objectives Reinforce interest in space exploration through grammar practice linked to Mars and outer - space themes. Build confidence in mastering complex grammar structures by applying them to engaging content. II. Language Knowledge 1. Key Grammar Structures Adverbial Clauses → Prepositional Phrases: Replace clauses with at the age of, because of, without (e.g., “when he was 16” → “at the age of 16”). Object Clauses → Simple Sentences with Prepositions: Use of, about to simplify clauses (e.g., “reminds them that food... is tasty” → “reminds them of tasty food”). Defining Relative Clauses → Simple Sentences with Prepositions: Use with, in to rewrite clauses (e.g., “houses which have huge rooms” → “houses with huge rooms”). 2. Key and Challenging Points Structure Transformation: Accurately converting between clauses and prepositional phrases. Contextual Application: Choosing the correct preposition and structure based on sentence meaning. Exam - related Practice: Applying grammar knowledge to complete exercises similar to exam questions. III. Teaching Procedures (Total Duration: 45 Minutes) Step 1 Lead - in & Review (4 Minutes) Activity: Connect grammar to space themes. Show a sentence about Mars: “Neil Armstrong took his first flight when he was six.” Ask: “How can we simplify this with a prepositional phrase?” (Answer: “at the age of six”). Introduce the task: “Today, we’ll learn to rewrite sentences about space/Mars using prepositions—making grammar concise and space - related!” Step 2 Adverbial Clauses → Prepositional Phrases (A) (12 Minutes) Structure Explanation: Teach rewriting with at the age of, because of, without (e.g., “because the gravity is low” → “because of low gravity”). Exercise Practice (A): Students rewrite sentences in “Learning about outer space” (e.g., “Yuri Gagarin... at the age of 27” → “when he was 27”). Walk around to help with preposition choice. Step 3 Object Clauses → Simple Sentences (B) (12 Minutes) Structure Explanation: Teach using of, about to simplify object clauses (e.g., “aware how far Mars is” → “aware of the distance”). Exercise Practice (B): Students rewrite Millie’s questions in “About the planet Mars” (e.g., “aware what transport could be like” → “aware of the transport”). Discuss answers, emphasizing preposition accuracy. Step 4 Defining Relative Clauses → Simple Sentences (C) (12 Minutes) Structure Explanation: Teach rewriting with with, in (e.g., “houses which have huge rooms” → “houses with huge rooms”). Exercise Practice (C): Students rewrite Simon’s sentences in “Curious about Mars” (e.g., “a planet that has an environment similar...” → “a planet with an environment similar...”). Check for correct preposition use. Step 5 Comprehensive Practice & Exam Link (5 Minutes) Activity: Mixed structure practice. Give a short paragraph about Mars with all three grammar structures. Students rewrite it using prepositional phrases. Discuss: “Which transformation was easiest? Hardest? Why?” IV. Assessment of Teaching Effectiveness Check A, B, C exercises for accurate structure transformation. Evaluate homework for creative application of grammar to Mars themes. V. Design Purpose Skill - Focused: Targets three key grammar transformations, essential for exam - related sentence - making. Engagement: Links grammar to space/Mars content, keeping students interested. Progression: Builds from explanation to practice, ensuring mastery of complex structures. VI. Blackboard Design Unit 4 Grammar—Space - Themed Sentence Transformations Adverbial → Prepositional: when he was 6 → at the age of 6 because gravity is low → because of low gravity Object → Simple: aware how far Mars is → aware of the distance Relative → Simple: houses which have huge rooms → houses with huge rooms Homework: Rewrite 5 space sentences + create 3 Mars sentences! 学科网（北京）股份有限公司 $$