Unit 5 Nature’s Temper Grammar Focus (4a-4d)教学设计2025-2026学年人教版英语八年级下册

该初中英语教学设计聚焦过去进行时（was/were + doing）及when/while用法，通过播放龙卷风视频并提问“龙卷风来袭时人们在做什么”，激活学生对过去事件的认知，搭建从真实情境到语法规则的学习支架。 资料以自然灾难为主题，采用归纳法、任务型教学和情境角色扮演，如4d环节让学生扮演记者与受灾者对话，提升语言表达能力。通过对比when（短暂动作）与while（持续动作）培养思维品质，分层作业满足不同学生需求，助力教师高效教学，帮助学生在真实语境中掌握语法，增强学习自信。

Unit 5 Nature’s Temper Grammar Focus (4a-4d) 1. Teaching Objectives Knowledge Objectives 1.Students will master the structure and usage of the Past Continuous Tense (was/were + doing). 2.Students will understand the difference between when and while in describing simultaneous or sequential past actions. 3.Students will use the Past Continuous Tense to describe ongoing actions in the past, especially in the context of natural disasters. Ability Objectives 1.Students can identify and underline verbs showing ongoing past actions (4a). 2.Students can combine sentences using when and while correctly (4b). 3.Students can complete a passage with was/were, when/while (4c) and use the target language in role-play interviews (4d). Emotional & Attitude Objectives 1.Students will develop awareness of natural disaster scenarios while practicing grammar in meaningful contexts. 2.Students will build confidence in using the Past Continuous Tense to narrate past events and experiences.  2. Teaching Key & Difficult Points Key Points •Structure and form of the Past Continuous Tense. •Usage of when and while to connect past continuous and simple past actions. •Correctly forming sentences with both tenses. Difficult Points •Distinguishing between when (simple past) and while (past continuous) in context. •Using the Past Continuous Tense naturally in writing and speaking about past events.  3. Teaching Methods & Aids Teaching Methods •Grammar Inductive Teaching •Task-Based Language Teaching (TBLT) •Guided Practice (drills, sentence combining) •Situational Role-play (interview activity) Teaching Aids •Student textbook •PPT (grammar rules, examples, tornado video clips) •Blackboard/whiteboard •Optional: Grammar worksheet for extra practice  4. Teaching Procedures Stage Teacher’s Activity Students’ Activity Design Purpose Warm-up & Lead-in (5 mins) 1. Show a short video clip of a tornado/storm.                   2. Ask: “What were people doing when the tornado hit?” 3. Introduce the lesson: “Today we’ll learn how to talk about ongoing actions in the past using the Past Continuous Tense with when and while.” 1. Watch the video and answer the guiding question.                   2. Share ideas about what people might have been doing. Activate prior knowledge and introduce the grammar topic in a meaningful context. Grammar Presentation (10 mins) 1.  Introduce Past Continuous Tense:  Write the structure on the board:  Subject + was/were + doing.               Give examples from the textbook (e.g., “I was travelling on the train then.”).              2. Explain when vs. while: - when: used with simple past (short action that interrupts an ongoing action).              - while: used with past continuous (two ongoing actions happening at the same time).  3. Show examples from the 4a sentences and highlight the verbs. 1. Take notes on the grammar structure.                   2. Identify the verbs showing ongoing actions in the 4a sentences.                   3. Discuss the difference between when and while with examples. Clearly present the grammar rules and help students distinguish between the two conjunctions. Controlled Practice (15 mins) Step 1: 4a (5 mins) Ask students to read the sentences and underline the verbs showing ongoing actions. Check answers together.  Step 2: 4b (5 mins) Guide students to combine the sentence pairs using when or while. Write answers on the board and check for errors.     Step 3: 4c (5 mins) Ask students to complete the passage with was, were, when, or while. Check answers as a class. 1. Complete 4a and share the verbs they underlined.                   2. Combine sentences in 4b and read them aloud.                   3. Fill in the blanks in 4c and discuss the answers. Provide structured practice to help students master the grammar rules through exercises. Production Practice (12 mins) Step 1: 4d Role-play Demonstration (3 mins) Model the interview dialogue with a student:              A: What were you doing when the tornado hit? B: My family and I were hiding in a safe room. A: What were you doing while you were waiting there? B: Oh, while I was waiting, my sister was crying… Step 2: Pair Work & Interviews (7 mins) Divide students into pairs. Assign roles: Reporter and Family Member. Ask them to create their own interviews using the prompts.             Step 3: Performances & Feedback (2 mins) Invite 2-3 pairs to perform their dialogues. Give positive feedback and correct grammar errors. 1. Observe the model dialogue.                   2. Work in pairs to practice and create their own interviews.                   3. Perform dialogues for the class. Consolidate the grammar rules through creative speaking practice, using the tornado context to make the activity meaningful. Summary & Homework (3 mins) 1.  Lesson Summary: Recap the Past Continuous Tense structure and the usage of when and while.           2. Emphasize the importance of using the correct tense when describing past events.                 3. Homework Assignment:         - Basic: Copy the grammar rules and 5 example sentences.           - Intermediate: Write 3 sentences using when and 3 using while to describe past events.               - Advanced: Write a short paragraph (80-100 words) about what you were doing during a storm, using the Past Continuous Tense. 1. Recall and review the grammar rules.                   2. Take notes on homework tasks. Reinforce the grammar rules and extend practice to writing.   5. Homework Design 1.Foundational Task: •Copy the Past Continuous Tense structure and 5 example sentences from the lesson. •Complete the grammar worksheet with 10 fill-in-the-blank exercises. 2.Intermediate Task: •Write 3 sentences using when (e.g., “I was reading when the power went out.”) and 3 sentences using while (e.g., “While I was doing my homework, my mom was cooking dinner.”). 3.Extension Task: •Write an 80-100 word short passage titled “The Stormy Night”. Use the Past Continuous Tense to describe what you and your family were doing during a storm. Include at least one when and one while sentence.  6. Blackboard Design                 Unit 5 Nature’s Temper Grammar Focus: Past Continuous Tense 1. Structure: Subject + was/were + doing Examples: - I was travelling on the train. - My children and I were reading together. 2. when vs. while ✅ when + simple past (interrupting action) What were you doing when the typhoon hit? ✅ while + past continuous (two ongoing actions) It was raining hard while we were driving back. 3. Sentence Combining - I was doing my homework when the typhoon landed. - While my father and I were making dinner, the power went out. 4. Role-play Prompts A: What were you doing when the tornado hit? B: I was hiding in a safe room. A: What were you doing while you were waiting there?    B: While I was waiting, my sister was crying.  7. Teaching Reflection Strengths 1.The lesson followed a clear “presentation → controlled practice → production practice” structure, which helped students build confidence with the grammar rules. 2.Using the natural disaster context (typhoons, tornadoes) made the grammar practice meaningful and engaging. 3.The 4d role-play activity allowed students to use the target language creatively, and most pairs performed well. Areas for Improvement 1.Some students struggled to distinguish between when and while in the 4b exercise, especially with sentences where both actions are ongoing. 2.A few weaker students made errors with was/were agreement (e.g., “I were reading”). Adjustments for Next Time •Add more examples and visual aids to clarify the difference between when and while (e.g., timeline diagrams). •Include a quick was/were drill before the exercises to reinforce subject-verb agreement. •Provide sentence frames for the 4d role-play to support struggling students. 学科网（北京）股份有限公司 $