Unit 1 Past and present Grammar 教学设计-2024-2025学年译林版八年级英语下册

Unit 1 Past and present Grammar 教学设计 I. Teaching Objectives 1. Knowledge Objectives Students will master the present perfect tense, understanding its form (have/has + past participle) and usage (actions starting in the past, continuing to present; past actions with present relevance; repeated actions). Students will accurately form past participles of regular and irregular verbs. 2. Ability Objectives Improve grammar skills by converting verbs to past participles and using the present perfect tense in sentences. Enhance communication skills through completing conversations with the present perfect tense. 3. Affective Objectives Foster confidence in using complex tenses to describe past - present connections. Encourage precise expression of experiences and changes, linking to the unit’s theme of past and present. II. Language Knowledge 1. Key Words & Phrases Present perfect tense: have/has + past participle; Regular/irregular verbs: past participle formation; Time expressions: since, just, already, yet, ever, never 2. Key Sentences “We use the present perfect tense to talk about an action that started in the past and continues to the present. I have lived here since I was born.” “They have finished their homework already. John has never visited China.” 3. Key and Challenging Points Key Points: Form and usage of the present perfect tense; past participle formation. Challenging Points: Distinguishing between regular and irregular past participles; choosing appropriate time expressions. III. Teaching Procedures (Total Duration: 45 Minutes) Step 1 Introduction to Present Perfect (10 Minutes) Show example sentences from the reading (e.g., “I’ve lived here since I was born”) and ask: “How is this tense formed? What does it show?” Introduce the topic: “Today, we’ll learn the present perfect tense—describing past actions that connect to the present!” Step 2 Tense Explanation & Practice (12 Minutes) Rule Presentation: Explain the present perfect tense structure: have/has + past participle (regular: -ed; irregular: varied forms). Clarify usage: actions continuing from past (since/for), past actions with present results (just/already), repeated actions (ever/never). Use examples (e.g., “I have finished my work”—past action, present result). Practice—Activity A: Students convert verbs to past participles (Activity A), distinguishing regular/irregular. Walk around to assist with irregular forms. Step 3 Application in Sentences (10 Minutes) Task—Activity B: Students complete sentences with the present perfect tense (Activity B), choosing have/has and past participles. Discuss answers, emphasizing time expressions (already, never, since, yet). Step 4 Conversation Practice (8 Minutes) Task—Activity C: Students finish Millie & Sandy’s conversation (Activity C) with the present perfect tense. Highlight how the tense describes recent experiences (seen a film, learned about Beijing). Step 5 Summary & Homework (5 Minutes) Summary (3 Minutes): Recap present perfect form (have/has + past participle), usage (past - present connections), and key time expressions. Homework (2 Minutes): Writing: Write 5 sentences about your past - present experiences using the present perfect tense. Review: List 10 irregular verbs and their past participles. IV. Assessment of Teaching Effectiveness Check Activity A answers for accurate past participle formation. Evaluate Activity B/C for correct present perfect tense use. V. Design Purpose Introduction: Connect to reading’s past - present theme, showing tense relevance. Explanation/Practice: Clear rule breakdown + targeted tasks for active learning. Application: Reinforce tense use in sentences and conversations, linking to real communication. VI. Blackboard Design Unit 1 Grammar—Present Perfect Tense Form: have/has + past participle Usage: - Actions continuing from past: “I have lived here since 2010.” - Past actions with present results: “She has finished her work.” - Repeated actions: “Have you ever visited Beijing?” Time Expressions: since, for, just, already, yet, ever, never Homework: Write present perfect sentences! VII. Teaching Reflection Strengths: Tense taught with clear examples and practical tasks. Weaknesses: Some students may struggle with irregular past participles. Improvements: Add a “tense sorting” game: Sort sentences by present perfect usage (continuing, result, repeated). This reinforces tense functions. 学科网（北京）股份有限公司 $$