Unit 1 Time to Relax Section A (4a-4c) 教学设计 2025-2026学年人教版八年级英语下册

授课教材 人教版八年级下册 授课题目 Unit 1 Time to Relax. Section A (4a-4c) 课时 课型 第 3 课时 语法课 主题情境 人与自我 教学目标Teaching Aims 1. Language Competence Students can identify and use infinitives as adverbials (purpose) and object complements in context. Students can construct sentences using infinitives to express purpose (e.g., I play the guitar to relax) and object complements (e.g., My dad encourages me to practice). 2. Cultural Awareness Students recognize how hobbies reflect personal values and cultural diversity (e.g., calligraphy in Chinese culture). 3. Thinking Ability Students analyze sentence structures to distinguish between different functions of infinitives. Students apply grammatical rules to create meaningful sentences about hobbies. 4. Learning Ability Students develop grammar deduction skills through guided discovery and practice. 教学重点 Key Points Grammar: Infinitives as adverbials (purpose) and object complements. Sentence patterns: I do X to Y(purpose); Someone tells/encourages/asks me to do Z(object complement). 教学难点 Difficult Points Distinguishing between infinitives as adverbials and object complements in authentic contexts. Using infinitives naturally in spoken and written production. 教学方法 Teaching Methods PPP Mode, task-based and communicative approaches 教学工具 Teaching Aids Multimedia projector, blackboard, handouts, recording device 教学过程 Teaching Procedures I. Warm-up (5 mins) Activity: Show pictures of hobbies (calligraphy, guitar playing) from previous lessons. Ask: Why do people do these activities?Elicit answers with to + verb(e.g., to relax, to learn a skill). Purpose: Activate prior knowledge and introduce the grammar focus. II. Presentation (10 mins) Step 1 – Grammar Discovery​ Display sentences from Grammar Focus (p.5): I play the flute to relax.(adverbial: purpose) She told me not to give up.(object complement) Guide students to identify the infinitive phrases and their functions using questions: What is the purpose of playing the flute?(to relax) What did she tell me?(not to give up) Present rules: Adverbial: to + verbanswers "Why?" (purpose). Object Complement: to + verbcompletes the meaning after verbs like tell, ask, encourage. Step 2 – Examples from Text​ Analyze sentences from 3a (calligraphy dialogue): I do calligraphy to relax.(adverbial) My dad teaches me to play the guitar.(object complement) III. Practice (15 mins)​ Controlled Practice (4a)​ Students complete 4a: Identify infinitives as adverbials (A) or object complements (OC). I play the flute to relax.→ A She told me not to give up.→ OC Peer-check answers with justification. Semi-Controlled Practice (4b)​ Complete conversations using correct infinitive forms (e.g., It made me decide to try skiing). Teacher provides sentence frames: [verb] + [object] + [infinitive](e.g., encourage me to practice). IV. Production (10 min) Creative Writing Task​ Students write 3 sentences about their hobbies: One sentence with an infinitive as an adverbial (purpose). One sentence with an infinitive as an object complement. One sentence combining both (e.g., My teacher encourages me to read books to improve my English). Share sentences in pairs and correct errors V. Summary (3 mins) Review key rules: Infinitives show purpose (Why?) or complete verbs like tell/ask/encourage. Highlight real-life application: "We use infinitives to explain our reasons and give advice." 作业设计 Homework Design Complete 4c (fill in the blanks with infinitives) and write 2 original sentences using each infinitive function. 板书设计 Blackboard Design 教学反思 Teaching Reflection Students grasped the concept of purpose infinitives quickly but needed more scaffolding for object complements. Visual aids (color-coding infinitives) helped differentiate functions. 教学评价Teaching Evaluation 85% accuracy in 4a identification task. Production task showed creative use of infinitives, though some students confused verb patterns (e.g., want me practiceinstead of want me to practice). 学科网（北京）股份有限公司 $